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[Bug runtime/5085] New: print_backtrace() and backtrace() not working in timer.profile probe on 2.6.23-rc8 kernel
- From: "wcohen at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 2 Oct 2007 14:22:36 -0000
- Subject: [Bug runtime/5085] New: print_backtrace() and backtrace() not working in timer.profile probe on 2.6.23-rc8 kernel
- Reply-to: sourceware-bugzilla at sourceware dot org
With the 2.6.23-rc8 kernel the following tests fail:
FAIL: backtrace of timer.profile (1)
FAIL: print_stack of timer.profile (0)
This is from testsuite/systemtap.context/backtrace.stp. Looking through the
systemtap.log see bogus addresses like the following:
--------
backtrace from timer.profile:
0x001d3392
--------
the profile stack is 0x001d3392
--------
0x001d3392
--------
Note that the test is passing on the same machine with the standard RHEL4
kernel, 2.6.9-55.0.9.ELsmp
--
Summary: print_backtrace() and backtrace() not working in
timer.profile probe on 2.6.23-rc8 kernel
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: runtime
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: wcohen at redhat dot com
GCC host triplet: i686
http://sourceware.org/bugzilla/show_bug.cgi?id=5085
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