forked from luck/tmp_suning_uos_patched
lockdep: more hardirq annotations for notify_die()
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: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -541,6 +541,7 @@ fastcall void do_##name(struct pt_regs * regs, long error_code) \
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info.si_errno = 0; \
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info.si_code = sicode; \
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info.si_addr = (void __user *)siaddr; \
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trace_hardirqs_fixup(); \
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if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \
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== NOTIFY_STOP) \
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return; \
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@ -635,6 +635,7 @@ asmlinkage void do_##name(struct pt_regs * regs, long error_code) \
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info.si_errno = 0; \
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info.si_code = sicode; \
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info.si_addr = (void __user *)siaddr; \
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trace_hardirqs_fixup(); \
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if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \
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== NOTIFY_STOP) \
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return; \
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