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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 ` 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:

           What    |Removed                     |Added
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                 CC|                            |mark at klomp dot org

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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:

           What    |Removed                     |Added
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                 CC|mjw at fedoraproject dot org       |

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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:

           What    |Removed                     |Added
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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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                 CC|                            |mjw at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=6436

------- You are receiving this mail because: -------
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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

------- You are receiving this mail because: -------
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^ permalink raw reply	[flat|nested] 7+ messages in thread

* [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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http://sourceware.org/bugzilla/show_bug.cgi?id=6436

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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)
-- links below jump to the message on this page --
     [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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