* [Bug kprobes/2185] New: Support reentrance from post handler on x86_64
@ 2006-01-20 0:48 anil dot s dot keshavamurthy at intel dot com
2006-03-17 22:08 ` [Bug kprobes/2185] " anil dot s dot keshavamurthy at intel dot com
0 siblings, 1 reply; 2+ messages in thread
From: anil dot s dot keshavamurthy at intel dot com @ 2006-01-20 0:48 UTC (permalink / raw)
To: systemtap
Currently kprobes on x86_64, in case of reentrance from post handler
disarm's the probe itself to avoid debug stack corruption and system crash.
However I saw this mail form Andi Kleen on discuss x86_64 mailing list on Mon,
16 Jan 2006 01:56:39 +0100
( http://www.x86-64.org/lists/discuss/msg08165.html ) which now
allows nesting of the debug entry point too. So I guess now it should be
possible for us to support reentrancy from post handler on x86_64. (Worth a
try, so opening this bug)
The above patch from Andi also unbreaks recursive kprobes from post handler
which got broken starting from 2.6.15-git12.
--
Summary: Support reentrance from post handler on x86_64
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: kprobes
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: anil dot s dot keshavamurthy at intel dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=2185
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* [Bug kprobes/2185] Support reentrance from post handler on x86_64
2006-01-20 0:48 [Bug kprobes/2185] New: Support reentrance from post handler on x86_64 anil dot s dot keshavamurthy at intel dot com
@ 2006-03-17 22:08 ` anil dot s dot keshavamurthy at intel dot com
0 siblings, 0 replies; 2+ messages in thread
From: anil dot s dot keshavamurthy at intel dot com @ 2006-03-17 22:08 UTC (permalink / raw)
To: systemtap
--
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|systemtap at sources dot |anil dot s dot keshavamurthy
|redhat dot com |at intel dot com
Status|NEW |ASSIGNED
http://sourceware.org/bugzilla/show_bug.cgi?id=2185
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2006-01-20 0:48 [Bug kprobes/2185] New: Support reentrance from post handler on x86_64 anil dot s dot keshavamurthy at intel dot com
2006-03-17 22:08 ` [Bug kprobes/2185] " anil dot s dot keshavamurthy at intel dot com
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