Oops with kernel 2.6.26 64 bits

[Steve-David Marguet]

Hi,

I just got a nice kernel oops.
I was playing with cheese and the program just froze.

What I was doing :
1)I took some photographs with the horizontal mirror (left to right) option on.
2)I saved them.
3) the program froze.

Here is what dmesg gave me :
[ 6912.514915] BUG: unable to handle kernel paging request at 0000000043b5fd20
[ 6912.514915] IP: [<ffffffffa0251f8c>] :gl860:v4l_gl860_ioctl+0x117f/0x1339
[ 6912.514915] PGD b5d59067 PUD 8ec46067 PMD b2cab067 PTE 8000000086f9e065
[ 6912.514915] Oops: 0003 [1] SMP
[ 6912.514915] CPU 0
[ 6912.514915] Modules linked in: wacom i915 drm binfmt_misc rfcomm l2cap vboxnetflt vboxdrv ppdev parport_pc lp parport ipv6 acpi_cpufreq cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_conservative cpufreq_ondemand freq_table fuse coretemp sbp2 loop snd_hda_intel snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy arc4 ecb snd_seq_oss crypto_blkcipher joydev snd_seq_midi snd_rawmidi snd_seq_midi_event iwl4965 firmware_class snd_seq iwlcore gl860 rfkill snd_timer snd_seq_device compat_ioctl32 videodev tpm_infineon mac80211 i2c_i801 v4l1_compat psmouse snd tpm tpm_bios hci_usb i2c_core iTCO_wdt pcspkr serio_raw cfg80211 bluetooth soundcore snd_page_alloc video output asus_laptop battery ac led_class button intel_agp evdev ext3 jbd mbcache ide_cd_mod cdrom sd_mod ata_generic ide_pci_generic piix ide_core sdhci mmc_core ahci ohci1394 ricoh_mmc ieee1394 libata scsi_mod sky2 dock uhci_hcd ehci_hcd thermal processor fan thermal_sys
[ 6912.514915] Pid: 13962, comm: cheese Not tainted 2.6.26-1-amd64 #1
[ 6912.514915] RIP: 0010:[<ffffffffa0251f8c>]  [<ffffffffa0251f8c>] :gl860:v4l_gl860_ioctl+0x117f/0x1339
[ 6912.514915] RSP: 0000:ffff81008455be58  EFLAGS: 00010246
[ 6912.514915] RAX: 0000000000000000 RBX: ffff81008ec1a9e0 RCX: 0000000000000000
[ 6912.514915] RDX: ffff81013c45e000 RSI: ffff8100b2816741 RDI: 0000000043b5fd38
[ 6912.514915] RBP: ffff81013c45e000 R08: 0000000000000000 R09: ffff81008455bb38
[ 6912.514915] R10: ffff8100010298f0 R11: 0000000000000007 R12: 0000000043b5fd20
[ 6912.514915] R13: 0000000000000000 R14: 0000000000000015 R15: 000000000000000b
[ 6912.514915] FS:  0000000043b60950(0063) GS:ffffffff8053c000(0000) knlGS:0000000000000000
[ 6912.514915] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 6912.514915] CR2: 0000000043b5fd20 CR3: 00000000b182e000 CR4: 00000000000006e0
[ 6912.514915] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 6912.514915] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 6912.514915] Process cheese (pid: 13962, threadinfo ffff81008455a000, task ffff8101258422c0)
[ 6912.514915] Stack:  ffffffff80248d77 0000000000001adb 00000000010056e1 ffff81008455beb0
[ 6912.514915]  ffffffff802290ba ffff8100010298f0 0000000000000000 ffff8101258422c0
[ 6912.514915]  ffffffff8022c202 0000000000100100 0000000000200200 0000000000000246
[ 6912.514915] Call Trace:
[ 6912.514915]  [<ffffffff80248d77>] ? ktime_get+0xc/0x41
[ 6912.514915]  [<ffffffff802290ba>] ? hrtick_start_fair+0xfb/0x144
[ 6912.514915]  [<ffffffff8022c202>] ? default_wake_function+0x0/0xe
[ 6912.514915]  [<ffffffff8022f07f>] ? hrtick_set+0x88/0xf7
[ 6912.514915]  [<ffffffff802a6655>] ? vfs_ioctl+0x55/0x6b
[ 6912.514915]  [<ffffffff802a68b3>] ? do_vfs_ioctl+0x248/0x261
[ 6912.514915]  [<ffffffff802a691d>] ? sys_ioctl+0x51/0x70
[ 6912.514915]  [<ffffffff8020beca>] ? system_call_after_swapgs+0x8a/0x8f
[ 6912.514915]
[ 6912.514915]
[ 6912.514915] Code: ff df 65 48 8b 14 25 00 00 00 00 31 c0 48 87 02 48 89 ef e8 65 09 00 00 85 c0 0f 85 3b 01 00 00 8b 85 64 02 00 00 49 8d 7c 24 18 <41> 89 04 24 8b 85 84 01 00 00 41 c7 44 24 0c 01 00 00 00 41 c7
[ 6912.514915] RIP  [<ffffffffa0251f8c>] :gl860:v4l_gl860_ioctl+0x117f/0x1339
[ 6912.514915]  RSP <ffff81008455be58>
[ 6912.514915] CR2: 0000000043b5fd20
[ 6912.514915] ---[ end trace e7d1ac35e16a6880 ]---

Some useful infos :
the wecam : Bus 004 Device 003: ID 05e3:0503 Genesys Logic, Inc.
gl860 version : 2.6.26e
kernel used : Linux x35-debian 2.6.26-1-amd64 #1 SMP Sat Jan 10 17:57:00 UTC 2009 x86_64 GNU/Linux

[nol]

Hi! 

Do you have a special option for your kernel which limits the effect of a bug? (freeze Cheese instead of the system in this case)

If this is the case, it helps me to understand what froze my system sometimes.

I look at the source code to try to see where the issue come from.
Thanks for your report.

Nol

[Steve-David Marguet]

I really don't know, I'm using the standard debian kernel (2.6.26-13).
Changelog here : http://packages.debian.org/changelogs/pool/main/l/linux-2.6/linux-2.6_2.6.26-13/changelog