Red Hat Bugzilla – Bug 454023
unwinding through k*probes slightly broken
Last modified: 2014-06-18 04:01:45 EDT
Excerpting from bug #253156 comment #6; two systemtap testsuite failures
appear to be correctable with a kernel patch. The severity of this bug
is low, but so appears to be the risk.
> FAIL: backtrace of yyy_func4.return (3)
> FAIL: print_stack of yyy_func4.return (1)
To fix this issue, we need to introduce following kernel enhancement.
Frank, I've tried to reproduce the issue on:
- systemtap version 0.6.2/0.131 built 2008-03-12
- kernel-2.6.18-97.el5 with the fix from upstream applied
and no luck... or otherwise - _luck_. testsuite tests done almost sucessfully
and absolutely identically on both kernels.
# make installcheck
=== systemtap Summary ===
# of expected passes 459
# of unexpected failures 2
# of unexpected successes 1
# of expected failures 170
# of unknown successes 1
# of known failures 5
# of untested testcases 19
# of unsupported tests 1
N.B. make check gave me exactly the same FAILs.
Does it mean that failures magically disappear or somebody has something
Did I miss something?
// putting bz in NEEDINFO
Sorry, I made a mistake: bug #232489 comment #27
appears to include this patch already.
*** This bug has been marked as a duplicate of 232489 ***