Oops in trace_hardirqs_on (powerpc)
Jörg Sommer
joerg at alea.gnuu.de
Mon Sep 27 22:50:37 EST 2010
Hello Steven,
Steven Rostedt hat am Wed 22. Sep, 15:44 (-0400) geschrieben:
> Sorry for the late reply, but I was on vacation when you sent this, and
> I missed it while going through email.
>
> Do you still have this issue?
No. I've rebuild my kernel without TRACE_IRQFLAGS and the problem
vanished, as expected. The problem is, that in some cases the stack is
only two frames deep, which causes the macro CALLER_ADDR1 makes an
invalid access. Someone told me, there a workaround for the problem on
i386, too.
% sed -n 2p arch/x86/lib/thunk_32.S
* Trampoline to trace irqs off. (otherwise CALLER_ADDR1 might crash)
Bye, Jörg.
--
Angenehme Worte sind nie wahr,
wahre Worte sind nie angenehm.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 198 bytes
Desc: Digital signature http://en.wikipedia.org/wiki/OpenPGP
URL: <http://lists.ozlabs.org/pipermail/linuxppc-dev/attachments/20100927/475575f9/attachment.pgp>
More information about the Linuxppc-dev
mailing list