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[Bug testsuite/10212] System hangs on running check.exp in systemtap snapshot : 0.9.7/0.141 commit release-0.9.7-167-geee30f4
- From: "mhiramat at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 11 Jun 2009 21:56:45 -0000
- Subject: [Bug testsuite/10212] System hangs on running check.exp in systemtap snapshot : 0.9.7/0.141 commit release-0.9.7-167-geee30f4
- References: <20090528090535.10212.maranp@linux.vnet.ibm.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From mhiramat at redhat dot com 2009-06-11 21:56 -------
(In reply to comment #4)
> First, the arch_arm_kprobe->"BUG: using smp_processor_id() in preemptible"
> path, it seems like a kernel kprobe-implementation bug, in that it calls
> get_kprobe_ctlblk() without an active disable_preempt(). Systemtap could
> conceivably work around this by wrapping our kprobe registration calls
> in a preempt_disable/enable.
This seems s390 specific issue. arch_arm/disarm_kprobe() on s390 should be
fixed by using disable_preempt().
--
http://sourceware.org/bugzilla/show_bug.cgi?id=10212
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