topic Re: How i can trace a core dump ? in Operating System - Linux

How i can trace a core dump ?

Francesco_13 — Thu, 11 Aug 2005 05:00:15 GMT

I have a core dump in my hp-ux 11i. For reading this, maybe that i'm do it to pass to any debug program : gdb or dde, but in my system it's not present and in a cd-rom of installation i cannot find it.
How i can install a correct program?

Thanks.
Best regards.
Francesco

Re: How i can trace a core dump ?

Alex Lavrov. — Thu, 11 Aug 2005 05:05:42 GMT

On one of your software CDROMs, there should be gdb installation. I think it's on the first CD or second.

Re: How i can trace a core dump ?

Alex Lavrov. — Thu, 11 Aug 2005 05:11:36 GMT

Hmm, maybe not after all. You can download it from here:

http://mirrors.develooper.com/hpux/downloads.html

porting by Procura

Or download wdb:
http://h21007.www2.hp.com/dspp/tech/tech_TechSoftwareDetailPage_IDX/1,1703,1665,00.html

Re: How i can trace a core dump ?

Francesco_13 — Thu, 11 Aug 2005 05:14:17 GMT

Hi,
in my cd set, software application (blue color) i cannot find it GDB. Are this the cd-set that you tell me?
Thanks
Best regards.
Francesco

Re: How i can trace a core dump ?

Muthukumar_5 — Thu, 11 Aug 2005 05:15:01 GMT

Initially You can try as,

# file core
# what core
# adb core
abd> c

You can get gdb for your platform from web itself.

hth.

Re: How i can trace a core dump ?

Alex Lavrov. — Thu, 11 Aug 2005 05:20:59 GMT

Well, I thought that it's there, but since I don't have it now, I can't check.

I gave you links to GDB ported to HPUX and WDB (another debugger).

I think there should not be a problem to install them.

Alex.

Re: How i can trace a core dump ?

Rajesh SB — Thu, 11 Aug 2005 05:22:22 GMT

Hi,

Normally, these gdb & WDB debug program comes along with Langtools Package of compilers. This can be found in your one of the Application CD supplied along with OS CD bundle.

Those products are

WDB B.11.11.12 HP Wildebeest(HP WDB) Debugger
WDB-GUI B.11.11.12 GUI for the HP WDB Debugger

Regards,
Rajesh

Re: How i can trace a core dump ?

Francesco_13 — Thu, 11 Aug 2005 05:27:00 GMT

Hi,
great! But i'm not be able to run the adb command...

The program that have generated a core it's :
f90webm
and the core file :
core

if i run: adb f90webm core
it's not correct

Can you help me?

Thanks.
Best regards.
Francesco

Re: How i can trace a core dump ?

Alex Lavrov. — Thu, 11 Aug 2005 05:29:28 GMT

Rajesh SB, thanx, I knew I saw them on Software CDs ! :)

Re: How i can trace a core dump ?

Rajesh SB — Thu, 11 Aug 2005 05:30:00 GMT

Hi,

Following steps are useful for debugging the crash/core dumps.

HPUX Panic Analysis

HP-UX has its own to analyze scripts. This is what you need to do to run a panic analysis:

1.) cd /var/adm/crash/core.[n]
2.) zcat /usr/contrib/lib/Q4Lib.tar.Z | tar -xvf -
3.) gunzip vmunix
4.) /usr/contrib/bin/q4pxdb vmunix
5.) cp q4lib/sample.q4rc.pl ~/.q4rc.pl
6.) /usr/contrib/bin/q4 -p .
7.) include analyze.pl
8.) run Analyze AU > crash[n]_rpt.txt
9.) Refer the "crash[n]_rpt.txt" file for crash details.

Regards,
Rajesh

Re: How i can trace a core dump ?

Francesco_13 — Thu, 11 Aug 2005 05:38:52 GMT

Hi,
i'm i have only a core dump of Oracle forms application, it's not a panic o my unix system.

Best regards.
Francesco

Re: How i can trace a core dump ?

Alex Lavrov. — Thu, 11 Aug 2005 05:50:06 GMT

I think you can debug the binary only if it was compiled with debug information in it.

Generally, compiling with debug info, has an impact on performance and on it's size, so I doubt that Oracle did it. I wouldn't so positive about debugging it.

Re: How i can trace a core dump ?

Francesco_13 — Thu, 11 Aug 2005 06:15:50 GMT

Thanks

Re: How i can trace a core dump ?

Himabindu Vuppula — Fri, 12 Aug 2005 11:37:44 GMT

You can download the HP gdb from www.hp.com/gp/wdb.

Re: How i can trace a core dump ?

Himabindu Vuppula — Fri, 12 Aug 2005 11:38:30 GMT

Sorry! It is http://www.hp.com/go/wdb