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[Bug runtime/5130] New: lockdep warnings for timer code
- From: "fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 6 Oct 2007 02:24:22 -0000
- Subject: [Bug runtime/5130] New: lockdep warnings for timer code
- Reply-to: sourceware-bugzilla at sourceware dot org
RHEL5 1-cpu x86-64 (2.6.18-34.el5debug kernel), running some test case gives
very rarely:
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
Call Trace:
<IRQ> [<ffffffff800a4b3e>] __lock_acquire+0x132/0x9d6
[<ffffffff800a594a>] lock_acquire+0x44/0x5d
[<ffffffff8846958a>] :stap_246f66a82ba8f09044b6a05621cd05ce_500:__stp_time_time
r_callback+0x58/0xc1
[<ffffffff8846958a>] :stap_246f66a82ba8f09044b6a05621cd05ce_500:__stp_time_time
r_callback+0x58/0xc1
[<ffffffff8006691b>] _spin_lock+0x1e/0x27
[<ffffffff8846958a>] :stap_246f66a82ba8f09044b6a05621cd05ce_500:__stp_time_time
r_callback+0x58/0xc1
[<ffffffff88469532>] :stap_246f66a82ba8f09044b6a05621cd05ce_500:__stp_time_time
r_callback+0x0/0xc1
[<ffffffff80097411>] run_timer_softirq+0x13b/0x1be
[<ffffffff80012793>] __do_softirq+0x67/0xf3
[<ffffffff8005f3d0>] call_softirq+0x1c/0x28
--
Summary: lockdep warnings for timer code
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: runtime
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: fche at redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=5130
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