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[Bug runtime/10177] New: _stp_kill_time on RT-kernel hits BUG
- From: "jistone at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 20 May 2009 19:30:25 -0000
- Subject: [Bug runtime/10177] New: _stp_kill_time on RT-kernel hits BUG
- Reply-to: sourceware-bugzilla at sourceware dot org
See http://sourceware.org/ml/systemtap/2009-q2/msg00635.html
In particular:
BUG: scheduling while atomic: stapio/0x00000001/26142, CPU#3
[...]
[<ffffffff812a2dea>] cpufreq_unregister_notifier+0x35/0x5c
[<ffffffffa02e0a1f>] _stp_kill_time+0xb6/0xbd
[stap_246f93f30a500769142af9987624737a_5072]
[<ffffffffa02e1749>] probe_1391+0x3c/0xa8
[stap_246f93f30a500769142af9987624737a_5072]
[<ffffffffa02e2621>] enter_end_probe+0x14a/0x1e3
[stap_246f93f30a500769142af9987624737a_5072]
It seems that cpufreq_unregister_notifier is sleepy, and so shouldn't be called
from probe context.
--
Summary: _stp_kill_time on RT-kernel hits BUG
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: runtime
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: jistone at redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=10177
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