Hello,

For AIX 7300-03-00 i get below error.

root@hostname:/root
> su - automation
automation@hostname[/home/automation]sudo su -
[YOU HAVE NEW MAIL]
3004-687 User "automati" does not exist.

When I'm trying to "sudo su -" from user with more than 8 characters then its appear. Basically I'm able to switch to root but anyway this error looks confusing.

Because its saying that user "automati" instead of "automation" .

In the truss dump we found something like this :

[...]
12059046: 32768295: 5.3506: kread(0, 0xF09C4D40, 4096)11076046: 24969701: 5.4668: kwrite(1, 0x0FFFFFFFFFFFE8A0, 58) = 58 = 58
12059046: a u t o m a t i p t s / 5 J u l 0 9 1
^^^^^^^^^^^^^^^ <-- !!!
12059046: 1 : 3 9 ( 2 1 3 . 2 3 . 1 2 2 . 1 1 3 )\n


11076046: a u t o m a t i p t s / 5 J u l 0 9 1
^^^^^^^^^^^^^^^ <-- !!!
11076046: 1 : 3 9 ( 2 1 3 . 2 3 . 1 2 2 . 1 1 3 )\n
12059046: 32768295: 5.4670: kioctl(1, 22528, 0x00000000, 0x00000000)11076046: 24969701: 5.4670: close(1) = 025 ENOTTY


12059046: 32768295: 5.4672: kread(0, 0xF09C4D40, 4096) = 0
= 0
12059046: 32768295: 5.4674: close(0) = 011076046: 24969701: 5.4675: checkpnt_block(0x0000000000000000, 17) = 0


11076046: 24969701: 5.4677: checkpnt_block(0x0000000 = 900000, 18)1323
12059046: a u t o m a t i\n
^^^^^^^^^^^^^^^ <-- !!!
= 9
13238722: a u t o m a t i\n
^^^^^^^^^^^^^^^ <-- !!!
[...]

So we think that sudo package has some problem. 

Sudo version installed is : 1.9.16p2-1 so the latest one.

I couldn't find similar problem anywhere. Maybe somebody has something to add here that would be great :)

Regards