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KAIO assert failure on HP-UX 11.0 / IDS 7.31 fc4

Posted in 2000

Topics: Performance & Tuning, Error Codes & Troubleshooting, Platform-Specific Issues, Versions, Editions & End-of-Life

russ_kahler@andersonsinc.com — — source: Informix-list mailing list archive (1991-1998)

When I try to initialize IDS shared memory with KAIOON=1, I get the following errors: Event alarms enabled. ALARMPROG = '/informix/etc/log_full.sh' 10:02:17 DR: DRAUTO is 0 (Off) 10:02:17 Informix Dynamic Server Version 7.31.FC4 Software SerialNumber 10:02:17 hpkaioaddseg: ASYNC_ADDSEG failed, errno = 14 10:02:17 Assert Failed: kaiothread() ERROR 10:02:17 Informix Dynamic Server Version 7.31.FC4 10:02:17 Who: Session(0, @, 0, 0) Thread(63, kaio, 0, 9) File: kaio.c Line: 2121 10:02:17 stack trace for pid 3107 written to /tmp/af.427baf8 10:02:30 See Also: /tmp/af.427baf8 10:02:30 kaio.c, line 2121, thread 63, proc id 3107, kaiothread() ERROR. 10:02:30 PANIC: Attempting to bring system down 10:02:30 semctl: errno = 22 I have the latest HP patches on the system, and the /dev/async driver loaded and created in /dev. I can bring IDS up without KAIO enabled...but would rather use it for the performance gain. Any ideas? Thanks, Russ Kahler ERP Systems Administrator The Andersons Maumee, Ohio Sent via Deja.com http://www.deja.com/ Before you buy.

↪ replying to russ_kahler@andersonsinc.com
Eugene Nechayev — — source: Informix-list mailing list archive (1991-1998)

Russ, Arghh.. I tired from this bug. The bug is in 7.30 UC6 and 7.30UC8, Now it looks like 7.31 is infected too ;( ------------------------------------------------------------------ Bug: 110290 KAIO ON HP FAILS WITH THE FOLLOWING ERROR HPKAIOADDSEG: ASYNC_ADDSEG FAILED, ERRNO = 12, ASSERT FAILED: KAIOTHREAD() ERROR Description: On HP-UX 10.20 KAIO is failing when trying to initialize an instance with a shared (Resident + Virtual) SHM SEG of size 93224960 , even though SHMMAX is set to 134217728. The same configuration works just fine in 7.24.UC7, also with a smaller shared memory segment KAIO works fine (i.e. SHM 82984960) This is similar to what was reported in BUG 104595 but in this case we have a single shared memory segment and the SHMMAX is set to a value greater in size than the size of the shared memory segment the engine allocated. --------------------------------------------------------------- There was a general bug description, but I ran into the problem with different amount of SHMSEG and ERRNO. Anyway Informix Tech Support sends the description. You can only ask Informix about producing a patch for you or not use KAIO. Eugene Nechayev In article <86kgvf$grs$1@nnrp1.deja.com>, russ_kahler@andersonsinc.com wrote: > When I try to initialize IDS shared memory with KAIOON=1, I get the > following errors: > > Event alarms enabled. ALARMPROG = '/informix/etc/log_full.sh' > 10:02:17 DR: DRAUTO is 0 (Off) > 10:02:17 Informix Dynamic Server Version 7.31.FC4 Software Serial> Number > 10:02:17 hpkaioaddseg: ASYNC_ADDSEG failed, errno = 14 > 10:02:17 Assert Failed: kaiothread() ERROR > 10:02:17 Informix Dynamic Server Version 7.31.FC4 > 10:02:17 Who: Session(0, @, 0, 0) > Thread(63, kaio, 0, 9) > File: kaio.c Line: 2121 > 10:02:17 stack trace for pid 3107 written to /tmp/af.427baf8 > 10:02:30 See Also: /tmp/af.427baf8 > 10:02:30 kaio.c, line 2121, thread 63, proc id 3107, kaiothread() > ERROR. > 10:02:30 PANIC: Attempting to bring system down > 10:02:30 semctl: errno = 22> > I have the latest HP patches on the system, and the /dev/async driver > loaded and created in /dev. I can bring IDS up without KAIO > enabled...but would rather use it for the performance gain. > > Any ideas? > > Thanks, > > Russ Kahler > ERP Systems Administrator > The Andersons > Maumee, Ohio > > Sent via Deja.com http://www.deja.com/ > Before you buy. > Sent via Deja.com http://www.deja.com/ Before you buy.

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