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kernel BUG videobuf-dma-sg

Hello,

Came in today to find bc server crashed - local terminal screen was all scrambled, system was not accessible via the LAN.

I rebooted, everything came back up OK.

Here is the relevant clip from syslog:

Jun 26 08:39:16 bluecherry CRON[18569]: (CRON) info (No MTA installed, discarding output)

Jun 26 08:45:01 bluecherry CRON[19095]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1)

Jun 26 08:55:01 bluecherry CRON[19680]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1)

Jun 26 09:04:08 bluecherry kernel: [4305288.248678] ------------[ cut here ]------------

Jun

26 09:04:08 bluecherry kernel: [4305288.248728] kernel BUG at

/build/buildd/linux-3.2.0/drivers/media/video/videobuf-dma-sg.c:525!

Jun 26 09:04:08 bluecherry kernel: [4305288.248790] invalid opcode: 0000 [#1] SMP

Jun 26 09:04:08 bluecherry kernel: [4305288.248826] CPU 0

Jun

26 09:04:08 bluecherry kernel: [4305288.248841] Modules linked in:

usbhid hid rfcomm bnep bluetooth parport_pc ppdev snd_hda_codec_idt

snd_hda_intel snd_hda_codec snd_hwdep solo6x10_edge(O) snd_pcm

snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer

snd_seq_device i915 snd soundcore drm_kms_helper drm i2c_algo_bit

psmouse serio_raw videobuf_dma_sg v4l2_common videodev snd_page_alloc

mac_hid video v4l2_compat_ioctl32 videobuf_dma_contig videobuf_core

shpchp dcdbas lp parport e1000e

Jun 26 09:04:08 bluecherry kernel: [4305288.249184]

Jun

26 09:04:08 bluecherry kernel: [4305288.249199] Pid: 5573, comm:

bc-server Tainted: G O 3.2.0-30-generic #48-Ubuntu Dell

Inc. Dell DM061 /0WG864

Jun 26

09:04:08 bluecherry kernel: [4305288.249290] RIP:

0010:[<ffffffffa0098101>] [<ffffffffa0098101>]

__videobuf_sync+0x71/0xa0 [videobuf_dma_sg]

Jun 26 09:04:08 bluecherry kernel: [4305288.249361] RSP: 0018:ffff8800531d7bd8 EFLAGS: 00010246

Jun 26 09:04:08 bluecherry kernel: [4305288.249397] RAX: ffff88006a6d5ac0 RBX: ffff88006bb92618 RCX: 0000000000000001

Jun 26 09:04:08 bluecherry kernel: [4305288.249443] RDX: 0000000000000000 RSI: ffff88006a6d5a00 RDI: ffff88006bb92618

Jun 26 09:04:08 bluecherry kernel: [4305288.249488] RBP: ffff8800531d7bd8 R08: ffff8800531d7db8 R09: 0000000000000000

Jun 26 09:04:08 bluecherry kernel: [4305288.249534] R10: ffff88006bb92600 R11: 0000000100000000 R12: ffff88006a6d5a00

Jun 26 09:04:08 bluecherry kernel: [4305288.249579] R13: ffff8800531d7dc0 R14: 0000000000000000 R15: 0000000000000000

Jun 26 09:04:08 bluecherry kernel: [4305288.249626] FS: 00007ff05e938700(0000) GS:ffff88006f400000(0000) knlGS:0000000000000000

Jun 26 09:04:08 bluecherry kernel: [4305288.249678] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

Jun 26 09:04:08 bluecherry kernel: [4305288.249716] CR2: 00007ff020095000 CR3: 000000004bf71000 CR4: 00000000000006f0

Jun 26 09:04:08 bluecherry kernel: [4305288.249762] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000

Jun 26 09:04:08 bluecherry kernel: [4305288.249808] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400

Jun

26 09:04:08 bluecherry kernel: [4305288.249854] Process bc-server (pid:

5573, threadinfo ffff8800531d6000, task ffff880068f3c500)

Jun 26 09:04:08 bluecherry kernel: [4305288.249907] Stack:

Jun 26 09:04:08 bluecherry kernel: [4305288.249922] ffff8800531d7c18 ffffffffa005b116 0000000000000246 ffff88006bb92600

Jun 26 09:04:08 bluecherry kernel: [4305288.249978] ffff8800531d7dc0 ffff880014b47000 ffff88006a640010 0000000000000000

Jun 26 09:04:08 bluecherry kernel: [4305288.250032] ffff8800531d7c58 ffffffffa0229fb6 ffffffffa0080033 ffff880069700400

Jun 26 09:04:08 bluecherry kernel: [4305288.250087] Call Trace:

Jun 26 09:04:08 bluecherry kernel: [4305288.250113] [<ffffffffa005b116>] videobuf_dqbuf+0x186/0x2f0 [videobuf_core]

Jun 26 09:04:08 bluecherry kernel: [4305288.250168] [<ffffffffa0229fb6>] solo_enc_dqbuf+0x86/0xb0 [solo6x10_edge]

Jun 26 09:04:08 bluecherry kernel: [4305288.250222] [<ffffffffa0080033>] ? check_fmt+0x83/0x140 [videodev]

Jun 26 09:04:08 bluecherry kernel: [4305288.250270] [<ffffffffa008282a>] __video_do_ioctl+0x207a/0x5560 [videodev]

Jun 26 09:04:08 bluecherry kernel: [4305288.250322] [<ffffffff8105609a>] ? finish_task_switch+0x4a/0xf0

Jun 26 09:04:08 bluecherry kernel: [4305288.250368] [<ffffffffa0229f30>] ? __solo_enc_on+0x490/0x490 [solo6x10_edge]

Jun 26 09:04:08 bluecherry kernel: [4305288.250423] [<ffffffffa008055c>] video_usercopy+0x27c/0x340 [videodev]

Jun 26 09:04:08 bluecherry kernel: [4305288.250475] [<ffffffffa00807b0>] ? v4l2_norm_to_name+0x50/0x50 [videodev]

Jun 26 09:04:08 bluecherry kernel: [4305288.250525] [<ffffffff816591af>] ? mutex_lock_interruptible+0x1f/0x50

Jun 26 09:04:08 bluecherry kernel: [4305288.250576] [<ffffffffa0080635>] video_ioctl2+0x15/0x20 [videodev]

Jun 26 09:04:08 bluecherry kernel: [4305288.250623] [<ffffffffa007f447>] v4l2_ioctl+0x147/0x150 [videodev]

Jun 26 09:04:08 bluecherry kernel: [4305288.250669] [<ffffffff8118a02a>] do_vfs_ioctl+0x8a/0x340

Jun 26 09:04:08 bluecherry kernel: [4305288.252002] [<ffffffff81657ebc>] ? __schedule+0x3cc/0x6f0

Jun 26 09:04:08 bluecherry kernel: [4305288.252002] [<ffffffff8118a371>] sys_ioctl+0x91/0xa0

Jun 26 09:04:08 bluecherry kernel: [4305288.252002] [<ffffffff81662a02>] system_call_fastpath+0x16/0x1b

Jun

26 09:04:08 bluecherry kernel: [4305288.252002] Code: 00 00 48 85 c0 74

1b 83 f9 02 77 4b 48 8b 40 40 48 85 c0 74 02 ff d0 31 c0 5d c3 0f 1f 80

00 00 00 00 48 8b 05 f9 ab b7 e1 eb dc <0f> 0b ba 12 11 72 19 48

c7 c7 98 a1 09 a0 31 c0 e8 a4 98 5a e1

Jun 26 09:04:08 bluecherry kernel: [4305288.252002] RIP [<ffffffffa0098101>] __videobuf_sync+0x71/0xa0 [videobuf_dma_sg]

Jun 26 09:04:08 bluecherry kernel: [4305288.252002] RSP <ffff8800531d7bd8>

Jun 26 09:04:08 bluecherry kernel: [4305288.310673] ---[ end trace fc391a4758b17aac ]---

Jul 2 09:49:17 bluecherry kernel: imklog 5.8.6, log source = /proc/kmsg started.

...System

has been running fine for about a month or so. There is 12G of disk

space free (95% usage as maintained by the BC server).

Suggestions?!

Thanks,

JDC

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