[Bug kprobes/2726] systemtap.base/probefunc.exp crash in kernel/module.c:2114 on RHEL4

["prasadav at us dot ibm dot com" <sourceware-bugzilla at sourceware dot org>]

------- Additional Comments From prasadav at us dot ibm dot com  2006-06-01 19:58 -------
Subject: Re:  New: systemtap.base/probefunc.exp crash in
 kernel/module.c:2114 on RHEL4

Hi Will,

Can we reproduce this on FC5/FC6, if se we can configure dump to get 
additional info.
If you get a dump we can help you analyze the dump.

bye,
Vara Prasad

wcohen at redhat dot com wrote:

>When running the systemtap testsuite on a RHEL4 machine with the 2.6.9-37.EL
>kernel, the systemtap.base/probesfunc.exp crashes the machine with the following
>message on the console:
>
>
>Linux slingshot.devel.redhat.com 2.6.9-37.EL #1 Fri May 19 17:55:44 EDT 2006
>i686 athlon i386 GNU/Linux
>
>Kernel panic - not sync: kernel/module.c:2114:
>spin_lock(kernel/module.c:c036b280) already locked by kernel/module.c:2114
>
> Badness in panic at kernel/panic.c:118
>
>
>systemtap.base/probefunc.exp definitely causes the crash when trying to probe
>kernel.function("scheduler_tick"). I don't have a great deal of details about
>the failure on the RHEL4 UP kernel. There wasn't a traceback or oops on the screen.
>
>  
>




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http://sourceware.org/bugzilla/show_bug.cgi?id=2726

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