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[Bug kprobes/9965] Kretprobe triggers BUG on -tip
- From: "mhiramat at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 19 Mar 2009 19:28:52 -0000
- Subject: [Bug kprobes/9965] Kretprobe triggers BUG on -tip
- References: <20090319093346.9965.ananth@in.ibm.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From mhiramat at redhat dot com 2009-03-19 19:28 -------
(In reply to comment #2)
> This is possibly a kretprobe booster bug on x86_32. Commit ccbeed3a modifies the
> pt_regs, the kretprobe_trampoline() part of the kretprobe booster needs to be
> updated to handle the gs register. That also explains why this problem manifests
> only with kretprobes and not with plain kprobes.
Indeed, that should be updated.
>
> Masami?
--
http://sourceware.org/bugzilla/show_bug.cgi?id=9965
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