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SubjectLockdep warning
Found this on my computer after an uptime of 7 days. I don't know if
it is harmless or not. "dirty" is only because of an uncommitted HID
input quirk entry.
Config is available if needed.


------------[ cut here ]------------
WARNING: at kernel/lockdep.c:2662 check_flags+0x13b/0x160()
Modules linked in: tsl2550 pcf8591 pcf8575 pcf8574 max6875 eeprom
ds1682 i2c_via i2c_algo_bit i2c_dev nls_iso8859_1 nls_cp437 vfat fat
nls_base sg sd_mod usb_storage libusual usbhid rfcomm l2cap bluetooth
video output sbs sbshc container dock backlight ac battery joydev
evdev 8250_pnp 8250 serial_core psmouse rtc serio_raw pcspkr
snd_via82xx snd_ac97_codec ac97_bus snd_pcm snd_page_alloc
snd_mpu401_uart snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq
snd_timer snd_seq_device snd soundcore i2c_viapro i2c_core hid button
floppy ehci_hcd uhci_hcd usbcore dm_mirror dm_snapshot dm_mod unix
thermal processor fan fuse [last unloaded: usbhid]
Pid: 24638, comm: totem Not tainted 2.6.25-rc3pista-00081-g7704a8b-dirty #14
[warn_on_slowpath+84/112] warn_on_slowpath+0x54/0x70
[native_calculate_cpu_khz+240/352] ? native_calculate_cpu_khz+0xf0/0x160
[unqueue_me+63/128] ? unqueue_me+0x3f/0x80
[_spin_unlock+39/80] ? _spin_unlock+0x27/0x50
[unqueue_me+71/128] ? unqueue_me+0x47/0x80
[futex_wait+566/768] ? futex_wait+0x236/0x300
[check_flags+315/352] check_flags+0x13b/0x160
[lock_acquire+65/160] lock_acquire+0x41/0xa0
[down_read+61/128] down_read+0x3d/0x80
[futex_wake+46/240] ? futex_wake+0x2e/0xf0
[futex_wake+46/240] futex_wake+0x2e/0xf0
[do_futex+163/2688] do_futex+0xa3/0xa80
[do_notify_resume+97/1968] ? do_notify_resume+0x61/0x7b0
[sysenter_past_esp+157/165] ? sysenter_past_esp+0x9d/0xa5
[search_exception_tables+23/48] ? search_exception_tables+0x17/0x30
[fixup_exception+14/48] ? fixup_exception+0xe/0x30
[do_general_protection+343/656] ? do_general_protection+0x157/0x290
[ktime_get_ts+59/64] ? ktime_get_ts+0x3b/0x40
[ktime_get+17/48] ? ktime_get+0x11/0x30
[sys_futex+138/240] sys_futex+0x8a/0xf0
[sysenter_past_esp+95/165] sysenter_past_esp+0x5f/0xa5
=======================
---[ end trace cf60772f91bc8ecf ]---
possible reason: unannotated irqs-on.
irq event stamp: 21512
hardirqs last enabled at (21511): [sysenter_past_esp+154/165]
sysenter_past_esp+0x9a/0xa5


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