Messages in this thread | | | Date | Sun, 11 May 2008 11:30:20 +0200 | From | Pidoux <> | Subject | 2.6.25.3 WARNING swapper Not tainted at kernel/lockdep.c |
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I still observe the following warning when booting kernel 2.6.25.3 SMP.
Booting processor 1/2 APIC 0x1 Initializing CPU#1 Calibrating delay using timer specific routine.. 4388.98 BogoMIPS (lpj=8777969) CPU: L1 I cache: 32K, L1 D cache: 32K CPU: L2 cache: 2048K CPU: Physical Processor ID: 0 CPU: Processor Core ID: 1 CPU1: Thermal monitoring enabled (TM2) Intel(R) Core(TM)2 Duo CPU E4500 @ 2.20GHz stepping 0d checking TSC synchronization [CPU#0 -> CPU#1]: passed. Brought up 2 CPUs ------------[ cut here ]------------ WARNING: at kernel/lockdep.c:2662 check_flags+0x18d/0x190() Modules linked in: Pid: 0, comm: swapper Not tainted 2.6.25.3-patched-ax25 #4
Call Trace: [<ffffffff8022fccf>] warn_on_slowpath+0x5f/0x80 [<ffffffff80213a77>] ? native_sched_clock+0x57/0x80 [<ffffffff8022acea>] ? hrtick_set+0x3a/0x120 [<ffffffff80254eb5>] ? __lock_acquire+0x245/0x1070 [<ffffffff8022ad6d>] ? hrtick_set+0xbd/0x120 [<ffffffff80213a77>] ? native_sched_clock+0x57/0x80 [<ffffffff8024b1c0>] ? __atomic_notifier_call_chain+0x0/0xa0 [<ffffffff8025191d>] check_flags+0x18d/0x190 [<ffffffff80255d43>] lock_acquire+0x63/0xd0 [<ffffffff8024b211>] __atomic_notifier_call_chain+0x51/0xa0 [<ffffffff8020b210>] ? mwait_idle+0x0/0x50 [<ffffffff8020b0a0>] ? default_idle+0x0/0x80 [<ffffffff8024b271>] atomic_notifier_call_chain+0x11/0x20 [<ffffffff8020a849>] __exit_idle+0x29/0x30 [<ffffffff8020b178>] cpu_idle+0x58/0xa0 [<ffffffff80450d0e>] start_secondary+0x2fe/0x430
---[ end trace ca143223eefdc828 ]--- possible reason: unannotated irqs-on. irq event stamp: 12 hardirqs last enabled at (11): [<ffffffff80456a75>] _spin_unlock_irqrestore+0x55/0x60 hardirqs last disabled at (12): [<ffffffff8020b16c>] cpu_idle+0x4c/0xa0 softirqs last enabled at (0): [<ffffffff8022db52>] copy_process+0x2d2/0x16a0 softirqs last disabled at (0): [<0000000000000000>] 0x0 khelper used greatest stack depth: 5920 bytes left net_namespace: 1144 bytes
Bernard Pidoux
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