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[Bug runtime/5130] New: lockdep warnings for timer code


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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