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[Bug runtime/22124] RHEL6 ppc64 system crash when running the perf.exp test case
- From: "dsmith at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Mon, 11 Sep 2017 21:07:41 +0000
- Subject: [Bug runtime/22124] RHEL6 ppc64 system crash when running the perf.exp test case
- Auto-submitted: auto-generated
- References: <bug-22124-6586@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=22124
--- Comment #2 from David Smith <dsmith at redhat dot com> ---
After a bit more debugging, I believe this would happen on any system with
"classic" uprobes (not inode-based uprobes) with support for perf hardware
instruction counters. Only the ppc64 seems to have both of these.
The uretprobe probe handler is accessing c->perf_read_values without
initializing the value first.
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