* [Bug runtime/6436] unwinder/backtrace should see through kretprobes_trampolines
[not found] <bug-6436-6586@http.sourceware.org/bugzilla/>
@ 2017-10-11 10:44 ` mark at klomp dot org
2017-10-11 10:48 ` mjw at fedoraproject dot org
2018-11-10 17:10 ` fche at redhat dot com
2 siblings, 0 replies; 7+ messages in thread
From: mark at klomp dot org @ 2017-10-11 10:44 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=6436
Mark Wielaard <mark at klomp dot org> changed:
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* [Bug runtime/6436] unwinder/backtrace should see through kretprobes_trampolines
[not found] <bug-6436-6586@http.sourceware.org/bugzilla/>
2017-10-11 10:44 ` [Bug runtime/6436] unwinder/backtrace should see through kretprobes_trampolines mark at klomp dot org
@ 2017-10-11 10:48 ` mjw at fedoraproject dot org
2018-11-10 17:10 ` fche at redhat dot com
2 siblings, 0 replies; 7+ messages in thread
From: mjw at fedoraproject dot org @ 2017-10-11 10:48 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=6436
Mark Wielaard <mjw at fedoraproject dot org> changed:
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* [Bug runtime/6436] unwinder/backtrace should see through kretprobes_trampolines
[not found] <bug-6436-6586@http.sourceware.org/bugzilla/>
2017-10-11 10:44 ` [Bug runtime/6436] unwinder/backtrace should see through kretprobes_trampolines mark at klomp dot org
2017-10-11 10:48 ` mjw at fedoraproject dot org
@ 2018-11-10 17:10 ` fche at redhat dot com
2 siblings, 0 replies; 7+ messages in thread
From: fche at redhat dot com @ 2018-11-10 17:10 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=6436
Frank Ch. Eigler <fche at redhat dot com> changed:
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CC| |agentzh at gmail dot com
--- Comment #4 from Frank Ch. Eigler <fche at redhat dot com> ---
*** Bug 23876 has been marked as a duplicate of this bug. ***
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* [Bug runtime/6436] unwinder/backtrace should see through kretprobes_trampolines
2008-04-21 15:44 [Bug runtime/6436] New: " fche at redhat dot com
` (2 preceding siblings ...)
2008-04-22 1:05 ` mhiramat at redhat dot com
@ 2009-04-23 16:12 ` mjw at redhat dot com
3 siblings, 0 replies; 7+ messages in thread
From: mjw at redhat dot com @ 2009-04-23 16:12 UTC (permalink / raw)
To: systemtap
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http://sourceware.org/bugzilla/show_bug.cgi?id=6436
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* [Bug runtime/6436] unwinder/backtrace should see through kretprobes_trampolines
2008-04-21 15:44 [Bug runtime/6436] New: " fche at redhat dot com
2008-04-21 17:48 ` [Bug runtime/6436] " mhiramat at redhat dot com
2008-04-21 20:15 ` fche at redhat dot com
@ 2008-04-22 1:05 ` mhiramat at redhat dot com
2009-04-23 16:12 ` mjw at redhat dot com
3 siblings, 0 replies; 7+ messages in thread
From: mhiramat at redhat dot com @ 2008-04-22 1:05 UTC (permalink / raw)
To: systemtap
------- Additional Comments From mhiramat at redhat dot com 2008-04-21 20:59 -------
(In reply to comment #2)
> It may be enough to MODULE_EXPORT the kretprobe_inst_table_head() function.
Take care: you have to hold the kretprobe_lock while accessing the instance
table:-).
# and the lock is held when a kretprobe handler is called. :-(
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http://sourceware.org/bugzilla/show_bug.cgi?id=6436
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* [Bug runtime/6436] unwinder/backtrace should see through kretprobes_trampolines
2008-04-21 15:44 [Bug runtime/6436] New: " fche at redhat dot com
2008-04-21 17:48 ` [Bug runtime/6436] " mhiramat at redhat dot com
@ 2008-04-21 20:15 ` fche at redhat dot com
2008-04-22 1:05 ` mhiramat at redhat dot com
2009-04-23 16:12 ` mjw at redhat dot com
3 siblings, 0 replies; 7+ messages in thread
From: fche at redhat dot com @ 2008-04-21 20:15 UTC (permalink / raw)
To: systemtap
------- Additional Comments From fche at redhat dot com 2008-04-21 17:47 -------
It may be enough to MODULE_EXPORT the kretprobe_inst_table_head() function.
Then our unwinder could search the list of currently active kretprobe_instances.
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http://sourceware.org/bugzilla/show_bug.cgi?id=6436
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* [Bug runtime/6436] unwinder/backtrace should see through kretprobes_trampolines
2008-04-21 15:44 [Bug runtime/6436] New: " fche at redhat dot com
@ 2008-04-21 17:48 ` mhiramat at redhat dot com
2008-04-21 20:15 ` fche at redhat dot com
` (2 subsequent siblings)
3 siblings, 0 replies; 7+ messages in thread
From: mhiramat at redhat dot com @ 2008-04-21 17:48 UTC (permalink / raw)
To: systemtap
------- Additional Comments From mhiramat at redhat dot com 2008-04-21 16:26 -------
I think this request needs kernel-side support, because the original return
address has been removed from a stack. We can find it in
kretprobe_instance->ret_addr.
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end of thread, other threads:[~2018-11-10 17:10 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-6436-6586@http.sourceware.org/bugzilla/>
2017-10-11 10:44 ` [Bug runtime/6436] unwinder/backtrace should see through kretprobes_trampolines mark at klomp dot org
2017-10-11 10:48 ` mjw at fedoraproject dot org
2018-11-10 17:10 ` fche at redhat dot com
2008-04-21 15:44 [Bug runtime/6436] New: " fche at redhat dot com
2008-04-21 17:48 ` [Bug runtime/6436] " mhiramat at redhat dot com
2008-04-21 20:15 ` fche at redhat dot com
2008-04-22 1:05 ` mhiramat at redhat dot com
2009-04-23 16:12 ` mjw at redhat dot com
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