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Tasklist

FS#3021 - kernel OOPS

Attached to Project: Arch Linux
Opened by Todor (yodor) - Monday, 01 August 2005, 11:50 GMT
Last edited by Simo Leone (neotuli) - Sunday, 16 October 2005, 03:58 GMT
Task Type Bug Report
Category System
Status Closed
Assigned To Judd Vinet (judd)
Architecture not specified
Severity Critical
Priority Normal
Reported Version 0.7 Wombat
Due in Version Undecided
Due Date Undecided
Percent Complete 0%
Votes 0
Private No

Details

Using kmobiletools after a disconnect and reconnect I got the following:
---
cdc_acm 2-1:1.0: ttyACM0: USB ACM device
usb 2-1: USB disconnect, address 4
Unable to handle kernel NULL pointer dereference at virtual address 00000000
printing eip:
c0330396
*pde = 00000000
Oops: 0000 [#1]
PREEMPT SMP
Modules linked in: cdc_acm nvidia uhci_hcd ehci_hcd parport_pc parport pcspkr rtc eepro100 mii snd_cmipci gameport snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc snd_opl3_lib snd_timer snd_hwdep snd_mpu401_uart snd_rawmidi snd_seq_device snd soundcore usbhid ohci_hcd i2c_sis96x i2c_sis630 i2c_core shpchp pci_hotplug tsdev evdev usbcore
CPU: 0
EIP: 0060:[<c0330396>] Tainted: P S VLI
EFLAGS: 00010246 (2.6.12-ARCH)
EIP is at get_kobj_path_length+0x26/0x40
eax: 00000000 ebx: 00000000 ecx: ffffffff edx: dac64ed8
esi: 00000001 edi: 00000000 ebp: ffffffff esp: d5d19dc8
ds: 007b es: 007b ss: 0068
Process kmobiletools (pid: 6814, threadinfo=d5d18000 task=dd7f85b0)
Stack: c03b9080 dac64eb4 d375c3f8 dac64ed8 c033043f dac64ed8 00000286 c4caac90
c03b9080 dac64eb4 d375c3f8 cc43b0e8 c03b90bd dac64ed8 000000d0 c0550b18
d5d19e44 c4caac29 c05ee560 c0550b1a d375c3e0 00000000 00000000 c03b9080
Call Trace:
[<c03b9080>] class_hotplug+0x0/0x1f0
[<c033043f>] kobject_get_path+0x1f/0x80
[<c03b9080>] class_hotplug+0x0/0x1f0
[<c03b90bd>] class_hotplug+0x3d/0x1f0
[<c03b9080>] class_hotplug+0x0/0x1f0
[<c03310b8>] kobject_hotplug+0x1e8/0x310
[<c03b96b6>] class_device_del+0xb6/0xe0
[<c03b96f0>] class_device_unregister+0x10/0x20
[<e0c85519>] acm_tty_close+0xb9/0x100 [cdc_acm]
[<c03845e1>] release_dev+0x171/0x790
[<c013bee7>] futex_wake+0x97/0xc0
[<c0192675>] inotify_dentry_parent_queue_event+0x35/0xc0
[<c0385104>] tty_release+0x14/0x20
[<c0168ad7>] __fput+0xa7/0x1b0
[<c0166eb3>] filp_close+0x63/0xa0
[<c0166f5b>] sys_close+0x6b/0xb0
[<c0103447>] sysenter_past_esp+0x54/0x75
Code: 27 00 00 00 00 55 bd ff ff ff ff 57 56 be 01 00 00 00 53 31 db 8b 54 24 14 8d b6 00 00 00 00 8d bf 00 00 00 00 8b 3a 89 e9 89 d8 <f2> ae f7 d1 49 8b 52 24 8d 74 31 01 85 d2 75 ea 5b 89 f0 5e 5f
<6>ohci_hcd 0000:00:02.3: wakeup
usb 2-1: new full speed USB device using ohci_hcd and address 5
usb 2-1: configuration #1 chosen from 2 choices
cdc_acm 2-1:1.0: ttyACM1: USB ACM device
---
After that a restart is needed to work with the device again
This task depends upon

Closed by  Judd Vinet (judd)
Monday, 17 October 2005, 01:28 GMT
Reason for closing:  Deferred
Comment by Judd Vinet (judd) - Wednesday, 24 August 2005, 22:40 GMT
Hmmm, at first glance, I'd be inclined to blame kmobiletools, since that's apparently the variable that can make the kernel oops.

If it is a kernel problem itself, than we'll have to wait for an upstream fix.
Comment by Chipster (Chipsterjulien) - Saturday, 03 September 2005, 08:15 GMT
I have the same issu
When i go to linux session, kernel booting and when i see the hard driver detection, the kernel crash and freeze my pc
Comment by Judd Vinet (judd) - Monday, 17 October 2005, 01:28 GMT
Sorry guys, not much I can do here since it really is a kernel issue.

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