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[Bug kprobes/5759] probes in sched.c on preempt kernel cause reboot
- From: "jkenisto at us dot ibm dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 13 Feb 2008 18:08:12 -0000
- Subject: [Bug kprobes/5759] probes in sched.c on preempt kernel cause reboot
- References: <20080212161826.5759.hunt@redhat.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From jkenisto at us dot ibm dot com 2008-02-13 18:08 -------
Created an attachment (id=2259)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=2259&action=view)
header file used by probe.c
Updated header so __init functions are commented out and joined with previous
lines, so that line number = array index + 1.
I probed all non-__init functions in kernel/sched.h. Probing any of the
following functions causes a hang:
- add_preempt_count
- preempt_schedule
- sub_preempt_count
If I omit these (and the __init functions) from func_array.h, rebuild probe.ko,
and run "insmod probe.ko first=0 last=210" (i.e., probe all the other functions
together), everything seems to be fine.
--
What |Removed |Added
----------------------------------------------------------------------------
Attachment #2254 is|0 |1
obsolete| |
http://sourceware.org/bugzilla/show_bug.cgi?id=5759
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