[Bug kprobes/2387] system crash on ppc64/2.6.15.4

["guanglei at cn dot ibm dot com" <sourceware-bugzilla@sourceware.org>]

------- Additional Comments From guanglei at cn dot ibm dot com  2006-03-01 16:36 -------
(In reply to comment #4)
> If you are seen problem even when not using SystemTap the this is probably
> something outside of SystemTap.  I suggest following this up on the linux-kernel
> and linuxppc64-dev mailing list to see if the problems is located in the kernel.
> 
> We should mark this bug as rejected until its proven that it is a SystemTap
problem.

the error : end_request: I/O error, dev sda, sector 17445 ...
will happen without running systemtap. It will occur after I copied something
into that partition. But I am not sure if it is the reason of causing kernel
panic when running systemtap.

The error:
Unable to handle kernel paging request for data at address
will happed when running stap with -b option.
But I agree with Jose that it may not be a systemtap bug, because systemtap
could work quite well on the redhat shipped kernels(2.6.9-30.EL, 2.6.9-27.EL).

It should not be a hardware failure because I tried it on different machines,
and even after reformat the partition. all of them have the same error.

The 2.6.15 kernel has some changes about power arch(move ppc64 to powerpc
directory), and the relayfs diffs a lot from RH shipped kernel. I tried not to
compile relayfs in 2.6.15* and want systemtap compile it, but failed. the
relayfs shipped with systemtap can't be compiled. some function signatures has
changed, and if I have time I'll try to replace relayfs.





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           What    |Removed                     |Added
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           Severity|normal                      |enhancement


http://sourceware.org/bugzilla/show_bug.cgi?id=2387

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