Kernel error message

[decibel83]

Hi.
I'm getting the following "kernel oops" message after I added a new local monitor in my Zoneminder installation:

Code: Select all

Unable to handle kernel paging request at ffff80ff056671c8 RIP:
 [<ffffffff80312710>] sync_single+0x1d/0x7b
PGD 0
Oops: 0000 [1] SMP
CPU 0
Modules linked in: tcp_diag inet_diag iptable_filter ip_tables x_tables bt878 ipv6 button ac battery loop tsdev btaudio soundcore bttv video_buf firmware_class ir_common compat_ioctl32 i2c_algo_bit btcx_risc tveeprom videodev v4l1_compat v4l2_common i2c_i801 shpchp pci_hotplug serio_raw psmouse pcspkr i2c_core evdev ext3 jbd mbcache dm_mirror dm_snapshot dm_mod ide_generic sd_mod ide_cd cdrom generic ehci_hcd piix ide_core mptsas mptscsih mptbase scsi_transport_sas scsi_mod tg3 uhci_hcd thermal processor fan
Pid: 29192, comm: zmc Not tainted 2.6.18-6-amd64 #1
RIP: 0010:[<ffffffff80312710>]  [<ffffffff80312710>] sync_single+0x1d/0x7b
RSP: 0000:ffff8100a9177b30  EFLAGS: 00010246
RAX: ffffffffe0000039 RBX: ffff8100a9c60000 RCX: 0000000000000002
RDX: ffff810005667000 RSI: 0000000001663800 RDI: ffff81011ae30070
RBP: 0000000001663800 R08: 0000000000000000 R09: 0000000000001000
R10: ffffffff881feb20 R11: ffffffff80313508 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000000000208 R15: ffff81011ae30070
FS:  00002ae2767f2b00(0000) GS:ffffffff80520000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffff80ff056671c8 CR3: 00000000ae09f000 CR4: 00000000000006e0
Process zmc (pid: 29192, threadinfo ffff8100a9176000, task ffff810114f097f0)
Stack:  ffffffff80313598 0000000000000296 ffff8100cbcc2230 ffff81011a269418
 ffff81011ae30000 0000000000000000 ffffffff881feb20 ffff81011a269400
 ffffffff881d23af ffff81011a269418 ffff8100cbcc2200 ffff81011a0f3980
Call Trace:
 [<ffffffff80313598>] swiotlb_sync_sg_for_cpu+0x90/0xa8
 [<ffffffff881d23af>] :video_buf:videobuf_dma_sync+0x6b/0x72
 [<ffffffff881dfb55>] :bttv:bttv_do_ioctl+0x9e6/0x1979
 [<ffffffff8021c72d>] __pollwait+0x0/0xe0
 [<ffffffff80210f66>] sock_def_readable+0x34/0x5f
 [<ffffffff80208d6d>] __d_lookup+0xb0/0xff
 [<ffffffff8020c490>] do_lookup+0x63/0x173
 [<ffffffff8020c8b5>] dput+0x23/0x153
 [<ffffffff80209bae>] __link_path_walk+0xdf2/0xf3c
 [<ffffffff802aa346>] zone_statistics+0x3e/0x6d
 [<ffffffff8022aed4>] mntput_no_expire+0x19/0x8b
 [<ffffffff8020dd5f>] link_path_walk+0xd3/0xe5
 [<ffffffff881a7ac7>] :videodev:video_usercopy+0x1a5/0x26f
 [<ffffffff881df16f>] :bttv:bttv_do_ioctl+0x0/0x1979
 [<ffffffff80218c5a>] cp_new_stat+0xe7/0xff
 [<ffffffff8023e038>] do_ioctl+0x55/0x6b
 [<ffffffff8022e082>] vfs_ioctl+0x252/0x26b
 [<ffffffff80248121>] sys_ioctl+0x59/0x78
 [<ffffffff80257bd6>] system_call+0x7e/0x83


Code: 4c 8b 14 c2 74 07 41 ff c8 75 48 eb 24 83 f9 02 4c 89 d7 0f
RIP  [<ffffffff80312710>] sync_single+0x1d/0x7b
 RSP <ffff8100a9177b30>
CR2: ffff80ff056671c8

Zoneminder is installed on a Debian Etch server with kernel 2.6.18-6-amd64.

What is the problem? Could you help me to solve it, please?

Thank you very much for your help!
Bye.

[spooky]

While you wait for someone who knows what they are doing to help, you might want to try a memory test. Given that you are not doing anything "new" (just more of the same) it might even be the problem. Try http://www.memtest.org/ - google pointed me in that direction. If nothing else it will rule out that problem - good luck.