This is the mail archive of the
systemtap@sourceware.org
mailing list for the systemtap project.
[Bug kprobes/2071] Probes on ISR with probes on task thread's prehandler crash the system
- From: "anil dot s dot keshavamurthy at intel dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 13 Jan 2006 02:08:32 -0000
- Subject: [Bug kprobes/2071] Probes on ISR with probes on task thread's prehandler crash the system
- References: <20051220073112.2071.anil.s.keshavamurthy@intel.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From anil dot s dot keshavamurthy at intel dot com 2006-01-13 02:08 -------
(In reply to comment #3)
> On ppc64, I tried to disable the interrupt in the kprobe handler in the case
of
> reentry and re-enable interrupt when it came out of the handler and it seems
to
> *WORK*. I was able to complete my kernel build (make -j8), where it gave an
oops
> before.
Hien, I tried your patch (porting onto IA64) and it did not work for me. Also
I see the solution you have mentioned might now work for x86_64 too.
Especially on x86_64 even when you disable interrupt, NMI's can still happen
and any probes on that path will cause the problem again.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=2071
------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.