Hi,

the "working" code:

package mainimport (  "fmt")func main() {  fmt.Println("Hello world")}

Compile (go build), run, and everything works perfectly.

Adding net module to the code, produces core dump:

package mainimport (  "fmt"  _ "net")func main() {  fmt.Println("Hello world")}

Memory fault(coredump)

AIX 7.3 TL3 SP0, Power10

If I compile the same code on Linux with GOOS=aix GOARCH=ppc64 and then copy it to AIX, it works without problems.

One month later, another debugging session. The problem is not in the "net" module, but in cgo AIX code. That's why the previous example worked if it was cross-compiled on Linux.

package main/*#include <netdb.h>*/import "C"import "fmt"package main() {  fmt.Println(C.AI_ALL)}

The problem is still there in all Go versions, including the latest 1.24.1. It doesn't matter which CPU architecture (P8, P9, P10) or GCC (10, 12) is used.

The only difference is that the message changed to "illegal instruction" in 1.24.

Hi,

the "working" code:

package mainimport (  "fmt")func main() {  fmt.Println("Hello world")}

Compile (go build), run, and everything works perfectly.

Adding net module to the code, produces core dump:

package mainimport (  "fmt"  _ "net")func main() {  fmt.Println("Hello world")}

Memory fault(coredump)

AIX 7.3 TL3 SP0, Power10

If I compile the same code on Linux with GOOS=aix GOARCH=ppc64 and then copy it to AIX, it works without problems.

Thanks @Andrey Klyachkin for reporting this. We will check on this. 

One month later, another debugging session. The problem is not in the "net" module, but in cgo AIX code. That's why the previous example worked if it was cross-compiled on Linux.

package main/*#include <netdb.h>*/import "C"import "fmt"package main() {  fmt.Println(C.AI_ALL)}

The problem is still there in all Go versions, including the latest 1.24.1. It doesn't matter which CPU architecture (P8, P9, P10) or GCC (10, 12) is used.

The only difference is that the message changed to "illegal instruction" in 1.24.

Hi,

the "working" code:

package mainimport (  "fmt")func main() {  fmt.Println("Hello world")}

Compile (go build), run, and everything works perfectly.

Adding net module to the code, produces core dump:

package mainimport (  "fmt"  _ "net")func main() {  fmt.Println("Hello world")}

Memory fault(coredump)

AIX 7.3 TL3 SP0, Power10

If I compile the same code on Linux with GOOS=aix GOARCH=ppc64 and then copy it to AIX, it works without problems.

Thanks @Andrey Klyachkin for reporting this. We will check on this. 

One month later, another debugging session. The problem is not in the "net" module, but in cgo AIX code. That's why the previous example worked if it was cross-compiled on Linux.

package main/*#include <netdb.h>*/import "C"import "fmt"package main() {  fmt.Println(C.AI_ALL)}

The problem is still there in all Go versions, including the latest 1.24.1. It doesn't matter which CPU architecture (P8, P9, P10) or GCC (10, 12) is used.

The only difference is that the message changed to "illegal instruction" in 1.24.

Hi,

the "working" code:

package mainimport (  "fmt")func main() {  fmt.Println("Hello world")}

Compile (go build), run, and everything works perfectly.

Adding net module to the code, produces core dump:

package mainimport (  "fmt"  _ "net")func main() {  fmt.Println("Hello world")}

Memory fault(coredump)

AIX 7.3 TL3 SP0, Power10

If I compile the same code on Linux with GOOS=aix GOARCH=ppc64 and then copy it to AIX, it works without problems.

To make it complete, I tested each Golang version from https://public.dhe.ibm.com/aix/freeSoftware/aixtoolbox/RPMS/ppc-7.3/golang/ on AIX 7.3 TL3 and every version failed. 

Thanks @Andrey Klyachkin for reporting this. We will check on this. 

One month later, another debugging session. The problem is not in the "net" module, but in cgo AIX code. That's why the previous example worked if it was cross-compiled on Linux.

package main/*#include <netdb.h>*/import "C"import "fmt"package main() {  fmt.Println(C.AI_ALL)}

The problem is still there in all Go versions, including the latest 1.24.1. It doesn't matter which CPU architecture (P8, P9, P10) or GCC (10, 12) is used.

The only difference is that the message changed to "illegal instruction" in 1.24.

Hi,

the "working" code:

package mainimport (  "fmt")func main() {  fmt.Println("Hello world")}

Compile (go build), run, and everything works perfectly.

Adding net module to the code, produces core dump:

package mainimport (  "fmt"  _ "net")func main() {  fmt.Println("Hello world")}

Memory fault(coredump)

AIX 7.3 TL3 SP0, Power10

If I compile the same code on Linux with GOOS=aix GOARCH=ppc64 and then copy it to AIX, it works without problems.

Thanks for isolating the problem to AIX 7.3 TL3. We will check on this. 

To make it complete, I tested each Golang version from https://public.dhe.ibm.com/aix/freeSoftware/aixtoolbox/RPMS/ppc-7.3/golang/ on AIX 7.3 TL3 and every version failed. 

Thanks @Andrey Klyachkin for reporting this. We will check on this. 

One month later, another debugging session. The problem is not in the "net" module, but in cgo AIX code. That's why the previous example worked if it was cross-compiled on Linux.

package main/*#include <netdb.h>*/import "C"import "fmt"package main() {  fmt.Println(C.AI_ALL)}

The problem is still there in all Go versions, including the latest 1.24.1. It doesn't matter which CPU architecture (P8, P9, P10) or GCC (10, 12) is used.

The only difference is that the message changed to "illegal instruction" in 1.24.

Hi,

the "working" code:

package mainimport (  "fmt")func main() {  fmt.Println("Hello world")}

Compile (go build), run, and everything works perfectly.

Adding net module to the code, produces core dump:

package mainimport (  "fmt"  _ "net")func main() {  fmt.Println("Hello world")}

Memory fault(coredump)

AIX 7.3 TL3 SP0, Power10

If I compile the same code on Linux with GOOS=aix GOARCH=ppc64 and then copy it to AIX, it works without problems.