topic Re: Server crash in Operating System - HP-UX

Server crash

Jansen Sena_1 — Mon, 28 Jul 2003 12:03:06 GMT

Dear friends,

I have a server with HP-UX 11.00/800 (L2000). This machine halted twice and the most different syslog message is:

syslog: System error initializing semaphore, Device busy

When this problem occur, my server not respond ping, telnet and console login. Can anyone help me? Is there any patch to solve this problem?

Thanks,

Jansen.

Re: Server crash

Massimo Bianchi — Mon, 28 Jul 2003 12:10:28 GMT

Hi,
i think it couls be related to the number of semaphores on your server.

Can you pastet /stand/system ?

check parameters

sem*

Massimo

Re: Server crash

Zeev Schultz — Mon, 28 Jul 2003 12:32:54 GMT

It could be a patching issue as well.Does your
system hang totally - you have to reset it?I'd
wait for such an occasion and perform TOC (Transfer Of Control) from the GSP (Ctl+B) card.Hopefully,saving crash is enabled and you
can extract the stack trace from the crash later (or pass crashdump to HP support center for analysis).It also can be due to process holding a device or high context switch content conditions (many processes are fighting for a specific device like io etc).
I'd go for producing a crash and checking it.

best regards,

Zeev

Re: Server crash

Steven E. Protter — Mon, 28 Jul 2003 12:59:37 GMT

If the system crashed with a red light on the front LCD panel, you should have a crash dump in /var/adm/crash

It will be a subdirectory.

You can perform q4 dump analysis on it and figure out what the error is. Then you can search itrc or contact hp with the analysis to figure out what patch you are missing.

Attaching the instructions.

SEP

Re: Server crash

Zeev Schultz — Mon, 28 Jul 2003 13:28:30 GMT

Or if you have support agreement with HP ask
for crashinfo tool.Fast & simple.

Zeev

Re: Server crash

Jansen Sena_1 — Mon, 28 Jul 2003 14:21:51 GMT

Dear friends,

when this problem occurs I have to reset the server using GSP. The server don't crashed with a red light on the front LCD panel. Thus, I don't have crash dump files in /var/adm/crash.

Re: Server crash

Vasikaran Venkatesan — Mon, 28 Jul 2003 14:46:06 GMT

You may want to TOC the system and create a crash dump off the system - to identify, where it is hanging. By any chance, did u check the /tmp file system if it is getting full.

Re: Server crash

Steven E. Protter — Mon, 28 Jul 2003 15:12:33 GMT

1) The system should not halt.

2) You probably have a performance tuning issue specficially with regards to shared memory segments

shmmax
shmseg

I am attaching a document to help with data collection, and putting in a link to help with the tuning.

http://www2.itrc.hp.com/service/cki/search.do?category=c0&docType=Security&docType=Patch&docType=EngineerNotes&docType=BugReports&docType=Hardware&docType=ReferenceMaterials&docType=ThirdParty&searchString=UPERFKBAN00000726&search.y=8&search.x=28&mode=id&admit=-1335382922+1059408712337+28353475&searchCrit=allwords

SEP

Re: Server crash

Jansen Sena_1 — Mon, 28 Jul 2003 19:32:45 GMT

Steve,

I'm having problems to use your link. The document search fail. Can you help me?

Thanks,

Jansen.