http://bugzilla.kernel.org/show_bug.cgi?id=10489
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Bugzilla entry).
ReportedBy: jeanmarc.lacroix@free.Fr
Earliest failing kernel version: 2.6.25
Distribution: DEbian Etch
Hardware Environment: PIII
Software Environment:
Problem Description: Warning at boot after running all
embedded test
Steps to reproduce: boot !!!
2.701005] Registering sys device '<NULL>'
[ 2.702320] Registering sys device '<NULL>'
[ 2.703711] Registering sys device '<NULL>'
[ 2.704536] Initializing RT-Tester: OK
[ 2.704824] device: 'snapshot': device_add
[ 2.705140] PM: Adding info for No Bus:snapshot
[ 2.706804] audit: initializing netlink socket (disabled)
[ 2.707199] type=2000 audit(1208713807.707:1): initialized
[ 2.707509] Kprobe smoke test started
[ 2.709300] ------------[ cut here ]------------
[ 2.709420] WARNING: at kernel/lockdep.c:2658 check_flags+0x4d/0x12c()
[ 2.709541] Modules linked in:
[ 2.709588] Pid: 1, comm: swapper Not tainted 2.6.25.jml.057 #1
[ 2.709588] [<c0126acc>] warn_on_slowpath+0x41/0x51
[ 2.709588] [<c010bafc>] ? save_stack_trace+0x1d/0x3b
[ 2.709588] [<c0140a83>] ? save_trace+0x37/0x89
[ 2.709588] [<c011987d>] ? kernel_map_pages+0x103/0x11c
[ 2.709588] [<c0109803>] ? native_sched_clock+0xca/0xea
[ 2.709588] [<c0142958>] ? mark_held_locks+0x41/0x5c
[ 2.709588] [<c0382580>] ? kprobe_exceptions_notify+0x322/0x3af
[ 2.709588] [<c0142aff>] ? trace_hardirqs_on+0xf1/0x119
[ 2.709588] [<c03825b3>] ? kprobe_exceptions_notify+0x355/0x3af
[ 2.709588] [<c0140823>] check_flags+0x4d/0x12c
[ 2.709588] [<c0143c9d>] lock_release+0x58/0x195
[ 2.709588] [<c038347c>] ? __atomic_notifier_call_chain+0x0/0x80
[ 2.709588] [<c03834d6>] __atomic_notifier_call_chain+0x5a/0x80
[ 2.709588] [<c0383508>] atomic_notifier_call_chain+0xc/0xe
[ 2.709588] [<c013b6d4>] notify_die+0x2d/0x2f
[ 2.709588] [<c038168a>] do_debug+0x67/0xfe
[ 2.709588] [<c0381287>] debug_stack_correct+0x27/0x30
[ 2.709588] [<c01564c0>] ? kprobe_target+0x1/0x34
[ 2.709588] [<c0156572>] ? init_test_probes+0x50/0x186
[ 2.709588] [<c04fae48>] init_kprobes+0x85/0x8c
[ 2.709588] [<c04e947b>] kernel_init+0x13d/0x298
[ 2.709588] [<c04e933e>] ? kernel_init+0x0/0x298
[ 2.709588] [<c04e933e>] ? kernel_init+0x0/0x298
[ 2.709588] [<c0105ef7>] kernel_thread_helper+0x7/0x10
[ 2.709588] =======================
[ 2.709588] ---[ end trace 778e504de7e3b1e3 ]---
[ 2.709588] possible reason: unannotated irqs-off.
[ 2.709588] irq event stamp: 370065
[ 2.709588] hardirqs last enabled at (370065): [<c0382580>]
kprobe_exceptions_notify+0x322/0x3af
[ 2.709588] hardirqs last disabled at (370064): [<c0381bb7>]
do_int3+0x1d/0x7d
[ 2.709588] softirqs last enabled at (370050): [<c012b464>]
__do_softirq+0xfa/0x100
[ 2.709588] softirqs last disabled at (370045): [<c0107438>]
do_softirq+0x74/0xd9
[ 2.714751] Kprobe smoke test passed successfully
[ 2.716150] Total HugeTLB memory allocated, 0
[ 2.717288] VFS: Disk quotas dquot_6.5.1
[ 2.717689] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 2.719630] device class 'bsg': registering
[ 2.720568] Block layer SCSI generic (bsg) driver version 0.4 loaded (major
253)
[ 2.720619] io scheduler noop registered
[ 2.720732] io scheduler anticipatory registered
[ 2.720848] io scheduler deadline registered
[ 2.721089] io scheduler cfq registered (default)
[ 2.721354] pci 0000:00:01.0: Boot video device
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
--
