Hi everybody!

we tried to increase the size of SHMVIRTSIZE
previously it was 94000 and SHMADD 8000
I tried to change SHMVIRTSIZE to 110000 and got an error...

18:42:36 HPUX Version B.11.00 -> Using flag/select style KAIO
18:42:36 hpkaioaddseg: ASYNC_ADDSEG failed, errno = 1
18:42:36 hpkaioaddseg: ASYNC_ADDSEG failed, errno = 1
18:42:37 Assert Failed: kaiothread() ERROR
18:42:37 Informix Dynamic Server Version 7.30.UC6
18:42:37 Who: Session(0, @, 0, 0)
Thread(139, kaio, 0, 5)
File: kaio.c Line: 2048
18:42:37 stack trace for pid 18065 written to /tmp/af.8b808c
18:42:37 Assert Failed: kaiothread() ERROR
18:42:37 Informix Dynamic Server Version 7.30.UC6
18:42:37 Who: Session(1, informix@dserver, 0, 0)
Thread(140, kaio, 0, 1)
File: kaio.c Line: 2048
18:42:37 stack trace for pid 18061 written to /tmp/af.8c808c
18:46:29 See Also: /tmp/af.8c808c
18:46:29 kaio.c, line 2048, thread 140, proc id 18061, kaiothread()
ERROR.
18:46:29 PANIC: Attempting to bring system down
18:46:37 Segment locked: addr=0xc2f35000, size=543285248

can anyone tell me what it means and how can I increase the size of
SHMVIRTSIZE because we get a lot of extents...

Thank you in advance!!!


Sergey

sshumilov@gmail.com wrote:
> Hi everybody!
>
> we tried to increase the size of SHMVIRTSIZE
> previously it was 94000 and SHMADD 8000
> I tried to change SHMVIRTSIZE to 110000 and got an error...
>
> 18:42:36 HPUX Version B.11.00 -> Using flag/select style KAIO
> 18:42:36 hpkaioaddseg: ASYNC_ADDSEG failed, errno = 1
> 18:42:36 hpkaioaddseg: ASYNC_ADDSEG failed, errno = 1
> 18:42:37 Assert Failed: kaiothread() ERROR
> 18:42:37 Informix Dynamic Server Version 7.30.UC6
> 18:42:37 Who: Session(0, @, 0, 0)
> Thread(139, kaio, 0, 5)
> File: kaio.c Line: 2048
> 18:42:37 stack trace for pid 18065 written to /tmp/af.8b808c
> 18:42:37 Assert Failed: kaiothread() ERROR
> 18:42:37 Informix Dynamic Server Version 7.30.UC6
> 18:42:37 Who: Session(1, informix@dserver, 0, 0)
> Thread(140, kaio, 0, 1)
> File: kaio.c Line: 2048
> 18:42:37 stack trace for pid 18061 written to /tmp/af.8c808c
> 18:46:29 See Also: /tmp/af.8c808c
> 18:46:29 kaio.c, line 2048, thread 140, proc id 18061, kaiothread()
> ERROR.
> 18:46:29 PANIC: Attempting to bring system down
> 18:46:37 Segment locked: addr=0xc2f35000, size=543285248
>
> can anyone tell me what it means and how can I increase the size of
> SHMVIRTSIZE because we get a lot of extents...
>
> Thank you in advance!!!
>
>
> Sergey

Well ...

1. Have you read the release notes?

grep -il kaio $INFORMIXDIR/release/*/*

and check that you have all the requirements

2. Have you set RESIDENT to -1?

To ensure that ALL segments get forced resident (even extra ones that
get added).

3. Have you ensured that you have the appropriate mlock privelages for
Informix?

4. Have you got enough RAM available to actually force resident > 100 Mb?

See what top reports

5. I think you mean shared memory segments and not extents.

6. 7.30.UC6 is ... old (supported it may not be)