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    lockdep: more hardirq annotations for notify_die() · fb1dac90
    Peter Zijlstra 提交于
    On Sat, 2007-12-29 at 18:06 +0100, Marcin Slusarz wrote:
    > Hi
    > Today I've got this (while i was upgrading my gentoo box):
    >
    > WARNING: at kernel/lockdep.c:2658 check_flags()
    > Pid: 21680, comm: conftest Not tainted 2.6.24-rc6 #63
    >
    > Call Trace:
    >  [<ffffffff80253457>] check_flags+0x1c7/0x1d0
    >  [<ffffffff80257217>] lock_acquire+0x57/0xc0
    >  [<ffffffff8024d5c0>] __atomic_notifier_call_chain+0x60/0xd0
    >  [<ffffffff8024d641>] atomic_notifier_call_chain+0x11/0x20
    >  [<ffffffff8024d67e>] notify_die+0x2e/0x30
    >  [<ffffffff8020da0a>] do_divide_error+0x5a/0xa0
    >  [<ffffffff80522bdd>] trace_hardirqs_on_thunk+0x35/0x3a
    >  [<ffffffff80255b89>] trace_hardirqs_on+0xd9/0x180
    >  [<ffffffff80522bdd>] trace_hardirqs_on_thunk+0x35/0x3a
    >  [<ffffffff80523c2d>] error_exit+0x0/0xa9
    >
    > possible reason: unannotated irqs-off.
    > irq event stamp: 4693
    > hardirqs last  enabled at (4693): [<ffffffff80522bdd>] trace_hardirqs_on_thunk+0x35/0x3a
    > hardirqs last disabled at (4692): [<ffffffff80522c17>] trace_hardirqs_off_thunk+0x35/0x37
    > softirqs last  enabled at (3546): [<ffffffff80238343>] __do_softirq+0xb3/0xd0
    > softirqs last disabled at (3521): [<ffffffff8020c97c>] call_softirq+0x1c/0x30
    
    more early fixups for notify_die()..
    Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
    Signed-off-by: NIngo Molnar <mingo@elte.hu>
    fb1dac90
traps_64.c 28.7 KB