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Re: [Bug kprobes/2726] 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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