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[Bug runtime/10575] occasional stapio hangs for -c CMD
- From: "dsmith at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 13 Oct 2009 14:05:43 -0000
- Subject: [Bug runtime/10575] occasional stapio hangs for -c CMD
- References: <20090829202719.10575.fche@redhat.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From dsmith at redhat dot com 2009-10-13 14:05 -------
commit ba9abf3 should improve this situation by avoiding the pause()-based race
condition Josh mentioned in comment #2. I've added code to use sigsuspend()
instead of pause() to avoid the race condition.
On the 2.6.31-tip kernel, I was seeing consistent failures from the
cmd_parse.exp testcase without this fix (but the specific test failures within
that testcase were random). With commit ba9abf3, I get consistent passes with
cmd_parse.exp on that kernel.
However, because of the intermittent nature of this problem, it is possible
there are still other fixes to be made. So, we'll leave this open for now.
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What |Removed |Added
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AssignedTo|systemtap at sources dot |dsmith at redhat dot com
|redhat dot com |
Status|NEW |ASSIGNED
http://sourceware.org/bugzilla/show_bug.cgi?id=10575
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