AIX Open Source

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

(gdb) info lineLine 371 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:371#1  0x000000010000074c in main (argc=0, argv=0x110001208 <_cce3nhgc.rw_+360>) at test.cpp:10(gdb) siAn exception occurred, processing has terminated abnormally. Specific messages follow:This is a test[Inferior 1 (process 33882590) exited with code 01]​

(gdb) info lineLine 1334 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:1334#1  0x0000000100283834 in (anonymous namespace)::FilterAssertNoMediumOverlays::doThrow (this=0x0, mmName=...)    at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:96#2  0x0000000100283668 in (anonymous namespace)::FilterAssertNoMediumOverlays::write (this=0x0,    buf=0x110013298 <_cczixF3b.rw_+43832>, bufSize=1) at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:84#3  0x000000010005bbc0 in AfpOutputFilter::sink_write (this=<incomplete type>, buf=<incomplete type>, bufSize=173)    at src/AfpFiltersInternal/AddSuppressTextToFormdef.cpp:67#4  0x00000001000ead90 in (anonymous namespace)::FilterInputFile::close (this=0x110045470)    at src/AfpFiltersExternal/FilterInputFile.cpp:93#5  0x0000000100001380 in main (argc=1, argv=0x0) at src/afpsak.cpp:138(gdb) siterminate called after throwing an instance of 'std::runtime_error'  what():  Assertion has failed in filter "assertNoMediumOverlays". The medium map with name "AAAPRIME" defines a medium overlay and is invoked just before page sequence 1.Program received signal SIGABRT, Aborted.0x09000000000416ac in raise () from /usr/lib/libc.a(shr_64.o)​

That line number looks out of range since the header is only 708 lines long.

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

(gdb) info lineLine 371 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:371#1  0x000000010000074c in main (argc=0, argv=0x110001208 <_cce3nhgc.rw_+360>) at test.cpp:10(gdb) siAn exception occurred, processing has terminated abnormally. Specific messages follow:This is a test[Inferior 1 (process 33882590) exited with code 01]​

(gdb) info lineLine 1334 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:1334#1  0x0000000100283834 in (anonymous namespace)::FilterAssertNoMediumOverlays::doThrow (this=0x0, mmName=...)    at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:96#2  0x0000000100283668 in (anonymous namespace)::FilterAssertNoMediumOverlays::write (this=0x0,    buf=0x110013298 <_cczixF3b.rw_+43832>, bufSize=1) at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:84#3  0x000000010005bbc0 in AfpOutputFilter::sink_write (this=<incomplete type>, buf=<incomplete type>, bufSize=173)    at src/AfpFiltersInternal/AddSuppressTextToFormdef.cpp:67#4  0x00000001000ead90 in (anonymous namespace)::FilterInputFile::close (this=0x110045470)    at src/AfpFiltersExternal/FilterInputFile.cpp:93#5  0x0000000100001380 in main (argc=1, argv=0x0) at src/afpsak.cpp:138(gdb) siterminate called after throwing an instance of 'std::runtime_error'  what():  Assertion has failed in filter "assertNoMediumOverlays". The medium map with name "AAAPRIME" defines a medium overlay and is invoked just before page sequence 1.Program received signal SIGABRT, Aborted.0x09000000000416ac in raise () from /usr/lib/libc.a(shr_64.o)​

That line number looks out of range since the header is only 708 lines long.

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

Sanket,
  It has been a long time since the last post, but I was able to confirm this is a bug in the compiler on AIX.  Our old compiler (4.2.4) does not cause a core.  The same code when compiled on Linux or other platforms does not create a core either.  I was able to pare down the code to some sample code that can reproduce the problem.  The heart of the problem is that a try/catch block is not being honored.  It is like it forgets it is in the try/catch and therefore cores.  Where would I send source to so they can work on a fix?  I would prefer not to post it on the forum.

$oslevel -s
7200-05-03-2148
$gcc --version
gcc (GCC) 10.3.0

Thanks,
Adam

(gdb) info lineLine 371 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:371#1  0x000000010000074c in main (argc=0, argv=0x110001208 <_cce3nhgc.rw_+360>) at test.cpp:10(gdb) siAn exception occurred, processing has terminated abnormally. Specific messages follow:This is a test[Inferior 1 (process 33882590) exited with code 01]​

(gdb) info lineLine 1334 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:1334#1  0x0000000100283834 in (anonymous namespace)::FilterAssertNoMediumOverlays::doThrow (this=0x0, mmName=...)    at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:96#2  0x0000000100283668 in (anonymous namespace)::FilterAssertNoMediumOverlays::write (this=0x0,    buf=0x110013298 <_cczixF3b.rw_+43832>, bufSize=1) at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:84#3  0x000000010005bbc0 in AfpOutputFilter::sink_write (this=<incomplete type>, buf=<incomplete type>, bufSize=173)    at src/AfpFiltersInternal/AddSuppressTextToFormdef.cpp:67#4  0x00000001000ead90 in (anonymous namespace)::FilterInputFile::close (this=0x110045470)    at src/AfpFiltersExternal/FilterInputFile.cpp:93#5  0x0000000100001380 in main (argc=1, argv=0x0) at src/afpsak.cpp:138(gdb) siterminate called after throwing an instance of 'std::runtime_error'  what():  Assertion has failed in filter "assertNoMediumOverlays". The medium map with name "AAAPRIME" defines a medium overlay and is invoked just before page sequence 1.Program received signal SIGABRT, Aborted.0x09000000000416ac in raise () from /usr/lib/libc.a(shr_64.o)​

That line number looks out of range since the header is only 708 lines long.

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

Sanket,
  It has been a long time since the last post, but I was able to confirm this is a bug in the compiler on AIX.  Our old compiler (4.2.4) does not cause a core.  The same code when compiled on Linux or other platforms does not create a core either.  I was able to pare down the code to some sample code that can reproduce the problem.  The heart of the problem is that a try/catch block is not being honored.  It is like it forgets it is in the try/catch and therefore cores.  Where would I send source to so they can work on a fix?  I would prefer not to post it on the forum.

$oslevel -s
7200-05-03-2148
$gcc --version
gcc (GCC) 10.3.0

Thanks,
Adam

(gdb) info lineLine 371 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:371#1  0x000000010000074c in main (argc=0, argv=0x110001208 <_cce3nhgc.rw_+360>) at test.cpp:10(gdb) siAn exception occurred, processing has terminated abnormally. Specific messages follow:This is a test[Inferior 1 (process 33882590) exited with code 01]​

(gdb) info lineLine 1334 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:1334#1  0x0000000100283834 in (anonymous namespace)::FilterAssertNoMediumOverlays::doThrow (this=0x0, mmName=...)    at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:96#2  0x0000000100283668 in (anonymous namespace)::FilterAssertNoMediumOverlays::write (this=0x0,    buf=0x110013298 <_cczixF3b.rw_+43832>, bufSize=1) at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:84#3  0x000000010005bbc0 in AfpOutputFilter::sink_write (this=<incomplete type>, buf=<incomplete type>, bufSize=173)    at src/AfpFiltersInternal/AddSuppressTextToFormdef.cpp:67#4  0x00000001000ead90 in (anonymous namespace)::FilterInputFile::close (this=0x110045470)    at src/AfpFiltersExternal/FilterInputFile.cpp:93#5  0x0000000100001380 in main (argc=1, argv=0x0) at src/afpsak.cpp:138(gdb) siterminate called after throwing an instance of 'std::runtime_error'  what():  Assertion has failed in filter "assertNoMediumOverlays". The medium map with name "AAAPRIME" defines a medium overlay and is invoked just before page sequence 1.Program received signal SIGABRT, Aborted.0x09000000000416ac in raise () from /usr/lib/libc.a(shr_64.o)​

That line number looks out of range since the header is only 708 lines long.

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

Thanks Sanket.  I sent a connection request, is that how I get your information?

Sanket,
  It has been a long time since the last post, but I was able to confirm this is a bug in the compiler on AIX.  Our old compiler (4.2.4) does not cause a core.  The same code when compiled on Linux or other platforms does not create a core either.  I was able to pare down the code to some sample code that can reproduce the problem.  The heart of the problem is that a try/catch block is not being honored.  It is like it forgets it is in the try/catch and therefore cores.  Where would I send source to so they can work on a fix?  I would prefer not to post it on the forum.

$oslevel -s
7200-05-03-2148
$gcc --version
gcc (GCC) 10.3.0

Thanks,
Adam

(gdb) info lineLine 371 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:371#1  0x000000010000074c in main (argc=0, argv=0x110001208 <_cce3nhgc.rw_+360>) at test.cpp:10(gdb) siAn exception occurred, processing has terminated abnormally. Specific messages follow:This is a test[Inferior 1 (process 33882590) exited with code 01]​

(gdb) info lineLine 1334 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:1334#1  0x0000000100283834 in (anonymous namespace)::FilterAssertNoMediumOverlays::doThrow (this=0x0, mmName=...)    at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:96#2  0x0000000100283668 in (anonymous namespace)::FilterAssertNoMediumOverlays::write (this=0x0,    buf=0x110013298 <_cczixF3b.rw_+43832>, bufSize=1) at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:84#3  0x000000010005bbc0 in AfpOutputFilter::sink_write (this=<incomplete type>, buf=<incomplete type>, bufSize=173)    at src/AfpFiltersInternal/AddSuppressTextToFormdef.cpp:67#4  0x00000001000ead90 in (anonymous namespace)::FilterInputFile::close (this=0x110045470)    at src/AfpFiltersExternal/FilterInputFile.cpp:93#5  0x0000000100001380 in main (argc=1, argv=0x0) at src/afpsak.cpp:138(gdb) siterminate called after throwing an instance of 'std::runtime_error'  what():  Assertion has failed in filter "assertNoMediumOverlays". The medium map with name "AAAPRIME" defines a medium overlay and is invoked just before page sequence 1.Program received signal SIGABRT, Aborted.0x09000000000416ac in raise () from /usr/lib/libc.a(shr_64.o)​

That line number looks out of range since the header is only 708 lines long.

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

There is a reply privately option. 

Thanks Sanket.  I sent a connection request, is that how I get your information?

Sanket,
  It has been a long time since the last post, but I was able to confirm this is a bug in the compiler on AIX.  Our old compiler (4.2.4) does not cause a core.  The same code when compiled on Linux or other platforms does not create a core either.  I was able to pare down the code to some sample code that can reproduce the problem.  The heart of the problem is that a try/catch block is not being honored.  It is like it forgets it is in the try/catch and therefore cores.  Where would I send source to so they can work on a fix?  I would prefer not to post it on the forum.

$oslevel -s
7200-05-03-2148
$gcc --version
gcc (GCC) 10.3.0

Thanks,
Adam

(gdb) info lineLine 371 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:371#1  0x000000010000074c in main (argc=0, argv=0x110001208 <_cce3nhgc.rw_+360>) at test.cpp:10(gdb) siAn exception occurred, processing has terminated abnormally. Specific messages follow:This is a test[Inferior 1 (process 33882590) exited with code 01]​

(gdb) info lineLine 1334 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:1334#1  0x0000000100283834 in (anonymous namespace)::FilterAssertNoMediumOverlays::doThrow (this=0x0, mmName=...)    at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:96#2  0x0000000100283668 in (anonymous namespace)::FilterAssertNoMediumOverlays::write (this=0x0,    buf=0x110013298 <_cczixF3b.rw_+43832>, bufSize=1) at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:84#3  0x000000010005bbc0 in AfpOutputFilter::sink_write (this=<incomplete type>, buf=<incomplete type>, bufSize=173)    at src/AfpFiltersInternal/AddSuppressTextToFormdef.cpp:67#4  0x00000001000ead90 in (anonymous namespace)::FilterInputFile::close (this=0x110045470)    at src/AfpFiltersExternal/FilterInputFile.cpp:93#5  0x0000000100001380 in main (argc=1, argv=0x0) at src/afpsak.cpp:138(gdb) siterminate called after throwing an instance of 'std::runtime_error'  what():  Assertion has failed in filter "assertNoMediumOverlays". The medium map with name "AAAPRIME" defines a medium overlay and is invoked just before page sequence 1.Program received signal SIGABRT, Aborted.0x09000000000416ac in raise () from /usr/lib/libc.a(shr_64.o)​

That line number looks out of range since the header is only 708 lines long.

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

Sanket,
  It has been a long time since the last post, but I was able to confirm this is a bug in the compiler on AIX.  Our old compiler (4.2.4) does not cause a core.  The same code when compiled on Linux or other platforms does not create a core either.  I was able to pare down the code to some sample code that can reproduce the problem.  The heart of the problem is that a try/catch block is not being honored.  It is like it forgets it is in the try/catch and therefore cores.  Where would I send source to so they can work on a fix?  I would prefer not to post it on the forum.

$oslevel -s
7200-05-03-2148
$gcc --version
gcc (GCC) 10.3.0

Thanks,
Adam

(gdb) info lineLine 371 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:371#1  0x000000010000074c in main (argc=0, argv=0x110001208 <_cce3nhgc.rw_+360>) at test.cpp:10(gdb) siAn exception occurred, processing has terminated abnormally. Specific messages follow:This is a test[Inferior 1 (process 33882590) exited with code 01]​

(gdb) info lineLine 1334 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:1334#1  0x0000000100283834 in (anonymous namespace)::FilterAssertNoMediumOverlays::doThrow (this=0x0, mmName=...)    at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:96#2  0x0000000100283668 in (anonymous namespace)::FilterAssertNoMediumOverlays::write (this=0x0,    buf=0x110013298 <_cczixF3b.rw_+43832>, bufSize=1) at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:84#3  0x000000010005bbc0 in AfpOutputFilter::sink_write (this=<incomplete type>, buf=<incomplete type>, bufSize=173)    at src/AfpFiltersInternal/AddSuppressTextToFormdef.cpp:67#4  0x00000001000ead90 in (anonymous namespace)::FilterInputFile::close (this=0x110045470)    at src/AfpFiltersExternal/FilterInputFile.cpp:93#5  0x0000000100001380 in main (argc=1, argv=0x0) at src/afpsak.cpp:138(gdb) siterminate called after throwing an instance of 'std::runtime_error'  what():  Assertion has failed in filter "assertNoMediumOverlays". The medium map with name "AAAPRIME" defines a medium overlay and is invoked just before page sequence 1.Program received signal SIGABRT, Aborted.0x09000000000416ac in raise () from /usr/lib/libc.a(shr_64.o)​

That line number looks out of range since the header is only 708 lines long.

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

Here is the code.  I sent the password privately. There is no makefile, but the shell script will build it.  Just run the resulting bin/TestCreateByMethodV4 program and you will get the core.  TestCreateByMethod.cpp is the entry point and wraps everything in a try catch.  I had to have several levels of inheritance with the template to recreate the core.

Thanks!

Sanket,
  It has been a long time since the last post, but I was able to confirm this is a bug in the compiler on AIX.  Our old compiler (4.2.4) does not cause a core.  The same code when compiled on Linux or other platforms does not create a core either.  I was able to pare down the code to some sample code that can reproduce the problem.  The heart of the problem is that a try/catch block is not being honored.  It is like it forgets it is in the try/catch and therefore cores.  Where would I send source to so they can work on a fix?  I would prefer not to post it on the forum.

$oslevel -s
7200-05-03-2148
$gcc --version
gcc (GCC) 10.3.0

Thanks,
Adam

(gdb) info lineLine 371 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:371#1  0x000000010000074c in main (argc=0, argv=0x110001208 <_cce3nhgc.rw_+360>) at test.cpp:10(gdb) siAn exception occurred, processing has terminated abnormally. Specific messages follow:This is a test[Inferior 1 (process 33882590) exited with code 01]​

(gdb) info lineLine 1334 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:1334#1  0x0000000100283834 in (anonymous namespace)::FilterAssertNoMediumOverlays::doThrow (this=0x0, mmName=...)    at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:96#2  0x0000000100283668 in (anonymous namespace)::FilterAssertNoMediumOverlays::write (this=0x0,    buf=0x110013298 <_cczixF3b.rw_+43832>, bufSize=1) at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:84#3  0x000000010005bbc0 in AfpOutputFilter::sink_write (this=<incomplete type>, buf=<incomplete type>, bufSize=173)    at src/AfpFiltersInternal/AddSuppressTextToFormdef.cpp:67#4  0x00000001000ead90 in (anonymous namespace)::FilterInputFile::close (this=0x110045470)    at src/AfpFiltersExternal/FilterInputFile.cpp:93#5  0x0000000100001380 in main (argc=1, argv=0x0) at src/afpsak.cpp:138(gdb) siterminate called after throwing an instance of 'std::runtime_error'  what():  Assertion has failed in filter "assertNoMediumOverlays". The medium map with name "AAAPRIME" defines a medium overlay and is invoked just before page sequence 1.Program received signal SIGABRT, Aborted.0x09000000000416ac in raise () from /usr/lib/libc.a(shr_64.o)​

That line number looks out of range since the header is only 708 lines long.

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

Sanket, I haven't heard anything more since I posted the sample code.  Any updates?  Is there a JIRA I can watch or something?

Here is the code.  I sent the password privately. There is no makefile, but the shell script will build it.  Just run the resulting bin/TestCreateByMethodV4 program and you will get the core.  TestCreateByMethod.cpp is the entry point and wraps everything in a try catch.  I had to have several levels of inheritance with the template to recreate the core.

Thanks!

Sanket,
  It has been a long time since the last post, but I was able to confirm this is a bug in the compiler on AIX.  Our old compiler (4.2.4) does not cause a core.  The same code when compiled on Linux or other platforms does not create a core either.  I was able to pare down the code to some sample code that can reproduce the problem.  The heart of the problem is that a try/catch block is not being honored.  It is like it forgets it is in the try/catch and therefore cores.  Where would I send source to so they can work on a fix?  I would prefer not to post it on the forum.

$oslevel -s
7200-05-03-2148
$gcc --version
gcc (GCC) 10.3.0

Thanks,
Adam

(gdb) info lineLine 371 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:371#1  0x000000010000074c in main (argc=0, argv=0x110001208 <_cce3nhgc.rw_+360>) at test.cpp:10(gdb) siAn exception occurred, processing has terminated abnormally. Specific messages follow:This is a test[Inferior 1 (process 33882590) exited with code 01]​

(gdb) info lineLine 1334 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:1334#1  0x0000000100283834 in (anonymous namespace)::FilterAssertNoMediumOverlays::doThrow (this=0x0, mmName=...)    at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:96#2  0x0000000100283668 in (anonymous namespace)::FilterAssertNoMediumOverlays::write (this=0x0,    buf=0x110013298 <_cczixF3b.rw_+43832>, bufSize=1) at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:84#3  0x000000010005bbc0 in AfpOutputFilter::sink_write (this=<incomplete type>, buf=<incomplete type>, bufSize=173)    at src/AfpFiltersInternal/AddSuppressTextToFormdef.cpp:67#4  0x00000001000ead90 in (anonymous namespace)::FilterInputFile::close (this=0x110045470)    at src/AfpFiltersExternal/FilterInputFile.cpp:93#5  0x0000000100001380 in main (argc=1, argv=0x0) at src/afpsak.cpp:138(gdb) siterminate called after throwing an instance of 'std::runtime_error'  what():  Assertion has failed in filter "assertNoMediumOverlays". The medium map with name "AAAPRIME" defines a medium overlay and is invoked just before page sequence 1.Program received signal SIGABRT, Aborted.0x09000000000416ac in raise () from /usr/lib/libc.a(shr_64.o)​

That line number looks out of range since the header is only 708 lines long.

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

Sanket, I haven't heard anything more since I posted the sample code.  Any updates?  Is there a JIRA I can watch or something?

Here is the code.  I sent the password privately. There is no makefile, but the shell script will build it.  Just run the resulting bin/TestCreateByMethodV4 program and you will get the core.  TestCreateByMethod.cpp is the entry point and wraps everything in a try catch.  I had to have several levels of inheritance with the template to recreate the core.

Thanks!

Sanket,
  It has been a long time since the last post, but I was able to confirm this is a bug in the compiler on AIX.  Our old compiler (4.2.4) does not cause a core.  The same code when compiled on Linux or other platforms does not create a core either.  I was able to pare down the code to some sample code that can reproduce the problem.  The heart of the problem is that a try/catch block is not being honored.  It is like it forgets it is in the try/catch and therefore cores.  Where would I send source to so they can work on a fix?  I would prefer not to post it on the forum.

$oslevel -s
7200-05-03-2148
$gcc --version
gcc (GCC) 10.3.0

Thanks,
Adam

(gdb) info lineLine 371 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:371#1  0x000000010000074c in main (argc=0, argv=0x110001208 <_cce3nhgc.rw_+360>) at test.cpp:10(gdb) siAn exception occurred, processing has terminated abnormally. Specific messages follow:This is a test[Inferior 1 (process 33882590) exited with code 01]​

(gdb) info lineLine 1334 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:1334#1  0x0000000100283834 in (anonymous namespace)::FilterAssertNoMediumOverlays::doThrow (this=0x0, mmName=...)    at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:96#2  0x0000000100283668 in (anonymous namespace)::FilterAssertNoMediumOverlays::write (this=0x0,    buf=0x110013298 <_cczixF3b.rw_+43832>, bufSize=1) at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:84#3  0x000000010005bbc0 in AfpOutputFilter::sink_write (this=<incomplete type>, buf=<incomplete type>, bufSize=173)    at src/AfpFiltersInternal/AddSuppressTextToFormdef.cpp:67#4  0x00000001000ead90 in (anonymous namespace)::FilterInputFile::close (this=0x110045470)    at src/AfpFiltersExternal/FilterInputFile.cpp:93#5  0x0000000100001380 in main (argc=1, argv=0x0) at src/afpsak.cpp:138(gdb) siterminate called after throwing an instance of 'std::runtime_error'  what():  Assertion has failed in filter "assertNoMediumOverlays". The medium map with name "AAAPRIME" defines a medium overlay and is invoked just before page sequence 1.Program received signal SIGABRT, Aborted.0x09000000000416ac in raise () from /usr/lib/libc.a(shr_64.o)​

That line number looks out of range since the header is only 708 lines long.

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

I am trying to reply directly, but my sent messages never show the message as being sent, so trying here as well.

Sangamesh,
I don't know why my replies are not working, but trying again.  There is a script included to compile on your machine (compile_test.sh).

Thanks,
Adam

------------------------------
Adam Swartz

Original Message:
Sent: Fri May 19, 2023 01:08 PM
From: SANKET RATHI
Subject: core file with new version of g++

Original Message:
Sent: 5/19/2023 10:30:00 AM
From: Adam Swartz
Subject: RE: core file with new version of g++

Sanket, I haven't heard anything more since I posted the sample code.  Any updates?  Is there a JIRA I can watch or something?

------------------------------
Adam Swartz

Original Message:
Sent: Tue May 09, 2023 10:16 AM
From: Adam Swartz
Subject: core file with new version of g++

Here is the code.  I sent the password privately. There is no makefile, but the shell script will build it.  Just run the resulting bin/TestCreateByMethodV4 program and you will get the core.  TestCreateByMethod.cpp is the entry point and wraps everything in a try catch.  I had to have several levels of inheritance with the template to recreate the core.

Thanks!

------------------------------
Adam Swartz

Original Message:
Sent: Mon May 08, 2023 01:29 PM
From: SANKET RATHI
Subject: core file with new version of g++

Original Message:
Sent: 5/4/2023 3:48:00 PM
From: Adam Swartz
Subject: RE: core file with new version of g++

Sanket,
  It has been a long time since the last post, but I was able to confirm this is a bug in the compiler on AIX.  Our old compiler (4.2.4) does not cause a core.  The same code when compiled on Linux or other platforms does not create a core either.  I was able to pare down the code to some sample code that can reproduce the problem.  The heart of the problem is that a try/catch block is not being honored.  It is like it forgets it is in the try/catch and therefore cores.  Where would I send source to so they can work on a fix?  I would prefer not to post it on the forum.

$oslevel -s
7200-05-03-2148
$gcc --version
gcc (GCC) 10.3.0

Thanks,
Adam

------------------------------
Adam Swartz

Original Message:
Sent: Tue October 25, 2022 02:32 PM
From: SANKET RATHI
Subject: core file with new version of g++

Hi Adam,

Is there a simple testcase that you can share to reproduce the problem ? We would like to try on our test system.

------------------------------
SANKET RATHI

Original Message:
Sent: Fri October 21, 2022 06:01 PM
From: Adam Swartz
Subject: core file with new version of g++

I stepped through the debugger with the test file and problem file.  I found the test file's last line was 371 in char_traits.h:

(gdb) info lineLine 371 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:371#1  0x000000010000074c in main (argc=0, argv=0x110001208 <_cce3nhgc.rw_+360>) at test.cpp:10(gdb) siAn exception occurred, processing has terminated abnormally. Specific messages follow:This is a test[Inferior 1 (process 33882590) exited with code 01]​

while the coring program's last lines are

(gdb) info lineLine 1334 of "/opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h" starts at address 0x12338978 <_ZNSi6ignoreEl+512> and ends at 0x12338988 <_ZNSi6ignoreEl+528>.(gdb) bt#0  0x0900000012338980 in std::istream::ignore (this=0x90, __n=<incomplete type>)    at /opt/freeware/src/packages/BUILD/gcc-build-8.3.0/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/bits/char_traits.h:1334#1  0x0000000100283834 in (anonymous namespace)::FilterAssertNoMediumOverlays::doThrow (this=0x0, mmName=...)    at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:96#2  0x0000000100283668 in (anonymous namespace)::FilterAssertNoMediumOverlays::write (this=0x0,    buf=0x110013298 <_cczixF3b.rw_+43832>, bufSize=1) at src/AfpFiltersExternal/FilterAssertNoMediumOverlays.cpp:84#3  0x000000010005bbc0 in AfpOutputFilter::sink_write (this=<incomplete type>, buf=<incomplete type>, bufSize=173)    at src/AfpFiltersInternal/AddSuppressTextToFormdef.cpp:67#4  0x00000001000ead90 in (anonymous namespace)::FilterInputFile::close (this=0x110045470)    at src/AfpFiltersExternal/FilterInputFile.cpp:93#5  0x0000000100001380 in main (argc=1, argv=0x0) at src/afpsak.cpp:138(gdb) siterminate called after throwing an instance of 'std::runtime_error'  what():  Assertion has failed in filter "assertNoMediumOverlays". The medium map with name "AAAPRIME" defines a medium overlay and is invoked just before page sequence 1.Program received signal SIGABRT, Aborted.0x09000000000416ac in raise () from /usr/lib/libc.a(shr_64.o)​

That line number looks out of range since the header is only 708 lines long.

------------------------------
Adam Swartz

Original Message:
Sent: Fri October 21, 2022 02:44 AM
From: SANKET RATHI
Subject: core file with new version of g++

Are both of these files compiled with same compiler and there is no other older library and other compiled unit ?

------------------------------
SANKET RATHI

Original Message:
Sent: Thu October 20, 2022 06:51 PM
From: Adam Swartz
Subject: core file with new version of g++

We moved from gcc 4.8.4 to  8.3.0.  When we run some regression testing we get a core file when we try to throw an exception.  The code throwing the exception is this:

char s[2048];snprintf(s, 2048, "Assertion has failed ...");throw std::runtime_error(s);

This is caught in main with this:

catch (std::exception &ex) {    fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());    exit(EXIT_FAILURE);}

The stack shows this:
$ cat core_stack.txt
raise.raise(??) at 0xd01247c8
abort.abort() at 0xd018a6b8
vterminate.__gnu_cxx::__verbose_terminate_handler()(), line 95 in "vterminate.cc"
eh_terminate.__cxxabiv1::__terminate(void (*)())(handler = ??), line 47 in "eh_terminate.cc"
eh_terminate.std::terminate()(), line 57 in "eh_terminate.cc"
eh_throw.__cxa_throw(obj = @0x200469f8, tinfo = ??, dest = ??), line 95 in "eh_throw.cc"
FilterAssertNoMediumOverlays.(anonymous namespace)::FilterAssertNoMediumOverlays::doThrow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)(0x20035628, 0x20035680), line 96 in "FilterAssertNoMediumOverlays.cpp"

I tried to pull out the problem code into a file:

#include <string>#include <stdexcept>int main(int argc,char *argv[]){   //Catch unexpected exceptions.   try {        char s[2048];        snprintf(s, 2048, "This is a test");        throw std::runtime_error(s);   }   catch (std::exception &ex) {      fprintf(stderr, "An exception occurred, processing has terminated abnormally. Specific messages follow:\n%s\n", ex.what());      exit(EXIT_FAILURE);   }}

and that runs without error.  Could it be because we link in some older code even if it is not used?

Thanks

------------------------------
Adam Swartz
------------------------------