usb related oops after resume
From: Jiri Slaby
Date: Mon Jul 31 2006 - 19:45:35 EST
Hello,
during resume I got this oops in 2.6.18-rc1-mm2 kernel:
[ 23.633322] Restarting tasks...<6>usb 3-2: USB disconnect, address 2
[ 23.633447] BUG: unable to handle kernel NULL pointer dereference at virtual
address 00000000
[ 23.633469] printing eip:
[ 23.633479] c0372aa0
[ 23.633489] *pde = 00000000
[ 23.633500] Oops: 0002 [#1]
[ 23.633510] 4K_STACKS SMP
[ 23.633523] last sysfs file: /devices/platform/i2c-9191/9191-0290/temp3_input
[ 23.633537] Modules linked in: vfat fat ipv6 binfmt_misc parport floppy
snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul snd_emu10k1
ohci1394 snd_rawmidi ieee1394 snd_ac97_codec snd_ac97_bus snd_util_mem ide_cd
snd_hwdep cdrom
[ 23.633612] CPU: 0
[ 23.633612] EIP: 0060:[<c0372aa0>] Not tainted VLI
[ 23.633613] EFLAGS: 00010246 (2.6.18-rc1-mm2 #152)
[ 23.633648] EIP is at _spin_lock+0x3/0x13
[ 23.633660] eax: 00000000 ebx: 00000000 ecx: c18ec8c0 edx: c1a033a8
[ 23.633674] esi: f7ffecac edi: c0453720 ebp: c19f0ea4 esp: c19f0ea4
[ 23.633688] ds: 007b es: 007b ss: 0068
[ 23.633700] Process khubd (pid: 98, ti=c19f0000 task=c19efa90 task.ti=c19f0000)
[ 23.633714] Stack: c19f0eb4 c0370094 f7ffecd0 f7ffec58 c19f0ed0 c026c512
f7ffecac f7ffed10
[ 23.633748] f7ffeebc f7ffec58 f7ffecd0 c19f0ef0 c026af50 f7ffec58
f7ffed24 f7d08458
[ 23.633781] f7ffeebc 00000010 f7ffec00 c19f0f18 c02a30f0 f7ffec58
00000000 f7ffed10
[ 23.633813] Call Trace:
[ 23.633830] [<c0104060>] show_stack_log_lvl+0xa5/0xca
[ 23.633846] [<c0104280>] show_registers+0x1b6/0x23b
[ 23.633861] [<c010444f>] die+0x14a/0x32c
[ 23.633874] [<c0118397>] do_page_fault+0x28f/0x5a9
[ 23.633889] [<c0103bc1>] error_code+0x39/0x40
[ 23.633902] [<c0370094>] klist_remove+0x11/0x29
[ 23.633917] [<c026c512>] bus_remove_device+0x9d/0xbb
[ 23.633934] [<c026af50>] device_del+0x13a/0x174
[ 23.633948] [<c02a30f0>] usb_disconnect+0xb4/0xe9
[ 23.633962] [<c02a3d1c>] hub_thread+0x1ee/0xc18
[ 23.633976] [<c01353d2>] kthread+0xfe/0x102
[ 23.633991] [<c0101005>] kernel_thread_helper+0x5/0xb
[ 23.634006] Code: c8 5d c3 55 89 e5 89 c2 90 81 28 00 00 00 01 0f 94 c0 b9 01
00 00 00 84 c0 75 09 90 81 02 00 00 00 01 30 c9 89 c8 5d c3 55 89 e5 <f0> fe 08
79 09 f3 90 80 38 00 7e f9 eb f2 5d c3 55 89 e5 f0 81
[ 23.634132] EIP: [<c0372aa0>] _spin_lock+0x3/0x13 SS:ESP 0068:c19f0ea4
[ 23.634383] done
[ 23.634893] Thawing cpus ...
[ 23.646353] SMP alternatives: switching to SMP code
It was maybe (forgot to lsusb, but no other usb device was connected) wacom
driver, if it is important.
regards,
--
<a href="http://www.fi.muni.cz/~xslaby/";>Jiri Slaby</a>
faculty of informatics, masaryk university, brno, cz
e-mail: jirislaby gmail com, gpg pubkey fingerprint:
B674 9967 0407 CE62 ACC8 22A0 32CC 55C3 39D4 7A7E
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