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dump_unwindsyms crash

From: "Frank Ch. Eigler" <fche at redhat dot com>
To: Srinivasa DS <srinivasa at in dot ibm dot com>
Cc: systemtap at sources dot redhat dot com
Date: Wed, 16 Jul 2008 07:17:54 -0400
Subject: dump_unwindsyms crash
References: <1215792576.8228.5.camel@dijkstra.wildebeest.org> <y0mvdz7jbrw.fsf@ton.toronto.redhat.com> <487DC05E.6030105@in.ibm.com>

Hi -

On Wed, Jul 16, 2008 at 03:03:18PM +0530, Srinivasa DS wrote:

> I hit segmentation fault while executing systemtap tests on x86_64. 
> section name(secname) was not verified for the NULL before dereferencing 
> it in dump_unwindsyms() and hence the problem.  Iam attaching the patch 
> to avoid this problem.

The patch is fine, but I wonder how come you hit this situation.  (It
hasn't hit any of my testing on fedora, rhel, ubuntu...)  Could you
analyze the core dump (dump modname/name/...) and show us the script?

- FChE

Follow-Ups:
- Re: dump_unwindsyms crash
  - From: Srinivasa DS

References:
- release-0.7-rc1 announcement suggestions
  - From: Mark Wielaard
- systemtap release 0.7 announcement
  - From: Frank Ch. Eigler
- Re: systemtap release 0.7 announcement
  - From: Srinivasa DS

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