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[Bug runtime/9947] lockdep triggered on rawhide with tracepoints
- From: "jistone at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 13 Mar 2009 00:48:50 -0000
- Subject: [Bug runtime/9947] lockdep triggered on rawhide with tracepoints
- References: <20090312190600.9947.jistone@redhat.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From jistone at redhat dot com 2009-03-13 00:48 -------
Created an attachment (id=3819)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=3819&action=view)
Possible fix to get rid of lockdep warning
Still, it's better that we don't spew lockdep warnings into the logs, no matter
how unlikely the actual deadlock.
This adds STP_REQUEST_EXIT that the work queue can send, instead of directly
unregistering probes. User mode will send up STP_EXIT then, at which point the
actual unregistering and cleanup can occur.
This does eliminate the lockdep message for me, but it will add more delay
between a script exit() and actually disarming the probes...
--
http://sourceware.org/bugzilla/show_bug.cgi?id=9947
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