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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
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