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[Bug runtime/10427] New: Multiple tracepoint OKs!
- From: "mjw at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 22 Jul 2009 12:42:55 -0000
- Subject: [Bug runtime/10427] New: Multiple tracepoint OKs!
- Reply-to: sourceware-bugzilla at sourceware dot org
On a rawhide install (2.6.31-0.81.rc3.git4.fc12.x86_64) the
testsuite/systemtap.base/tracepoints.stp sometimes produces multiple triggers of
the following probe:
probe all_tracepoints!, begin {
println("tracepoints OK")
exit()
}
But only with clean caches.
$ rm -rf ~/.systemtap && stap -v testsuite/systemtap.base/tracepoints.stp
Pass 1: parsed user script and 58 library script(s) in 90usr/10sys/110real ms.
Pass 2: analyzed script: 60 probe(s), 2 function(s), 0 embed(s), 1 global(s) in
6600usr/8570sys/14727real ms.
Pass 3: translated to C into
"/tmp/stapTj3U43/stap_6a431ab5b96059ed64495d90c1c45405_20000.c" in
10usr/0sys/11real ms.
Pass 4: compiled C into "stap_6a431ab5b96059ed64495d90c1c45405_20000.ko" in
4530usr/1600sys/6163real ms.
Pass 5: starting run.
tracepoints OK
tracepoints OK
tracepoints OK
Pass 5: run completed in 30usr/60sys/124real ms.
With the cache in place, it never seems to trigger multiple times afterwards. It
also doesn't trigger multiple times ever on fedora 11 (2.6.29.6-213.fc11.x86_64).
--
Summary: Multiple tracepoint OKs!
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: runtime
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: mjw at redhat dot com
CC: jistone at redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=10427
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