Red Hat Bugzilla – Bug 448628
FUTEX_WAKE_BITSET and FUTEX_WAKE_BITSET incorrectly decoded
Last modified: 2010-01-07 10:26:09 EST
Description of problem:
Somehow the handling of FUTEX_CMP_REQUEUE_PI crept into strace. That operation
is not supported in the upstream kernel. And worse: the opcode number is used
for something else. The newer operations FUTEX_WAIT_BITSET and
FUTEX_WAKE_BITSET collide with the incorrect FUTEX_CMP_REQUEUE_PI handling. I'm
attaching a patch to correct the problem.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.run code using FUTEX_WAIT_BITSET under strace
shown as FUTEX_CMP_REQUEUE_PI operations
shown as FUTEX_WAIT_BITSET operation
Created attachment 306847 [details]
Add support for the bitset operations, removing CMP_REQUEUE_PI
Created attachment 306851 [details]
Same patch, but don't add printing of parameter for all other operations
Little extra change slipped into the last patch.
Patch seems to be in upstream strace cvs already.
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The strace in F11 is not updated.
Fixed in 4.5.19-1.
This bug appears to have been reported against 'rawhide' during the Fedora 12 development cycle.
Changing version to '12'.
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