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[Bug runtime/17270] uprobes_onthefly.exp causing hang on ppc64
- From: "dsmith at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Tue, 26 Aug 2014 14:32:57 +0000
- Subject: [Bug runtime/17270] uprobes_onthefly.exp causing hang on ppc64
- Auto-submitted: auto-generated
- References: <bug-17270-6586 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=17270
--- Comment #3 from David Smith <dsmith at redhat dot com> ---
OK, I think I know what is going on here. I think there are actually 2 separate
problems here:
1) The "stap module notifier triggered in unexpected state 3" message happens
when the session is shutting down but the uprobe hasn't been unregistered yet.
I think we can change the code to not output this message if we in the
STAP_SESSION_STOPPING state.
2) The hang happens in the 'otf_stress_hard_iter_2000' and
'otf_stress_max_iter_5000' subtests. These tests also probe
'kernel.trace("*")', and are hitting bug #17126 (tracepoints.exp testcase
causing stalls/hang on ppc64). When that one gets solved, the hangs should stop
here also. If I take the 'kernel.trace("*")' probing out of those subtests,
they pass just fine.
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