[mythtv-users] Kernel Oops when using remote

John Drescher drescherjm at gmail.com
Sat Nov 1 02:46:10 UTC 2008


On Fri, Oct 31, 2008 at 9:58 PM, Erik Mellquist
<erik.mellquist at gmail.com> wrote:
> I am using a XBOX IR receiver through a USB port set up as described in the
> MythTV wiki (http://www.mythtv.org/wiki/index.php/XBOX_DVD_IR_Receiver) that
> works great about 99% of the time.  If I ever push a button (normally skip
> forward or back) too many times in a quick succesion (4 or 5 times within 10
> seconds), I hear a short beep from the motherboard speaker and get a kernel
> oops message.  Video keeps playing, but the remote stops working and I can't
> exit or kill the frontend after this happens.  I can't even restart the
> machine without holding down the power button for 5 seconds.
>
> Like I said, the remote responds fine under all other conditions.  I can
> hold the buttons down and let video skip forward 20 or 30 times without
> problems, but as soon as I start tapping on that button all bets are off.
> Any suggestions would be appreciated.
>
>
> From /var/log/messages:
>
> Oct 31 18:17:31 LivingRoom kernel: Unable to handle kernel paging request at
> 000000000007000d RIP:
> Oct 31 18:17:31 LivingRoom kernel:  [<ffffffff881e2e59>]
> :snd_hda_intel:snd_hda_mixer_bind_ctls_get+0x2b/0x5d
> Oct 31 18:17:31 LivingRoom kernel: PGD 23056067 PUD 233b3067 PMD 0
> Oct 31 18:17:31 LivingRoom kernel: Oops: 0000 [1] SMP
> Oct 31 18:17:31 LivingRoom kernel: CPU 1
> Oct 31 18:17:31 LivingRoom kernel: Modules linked in: it87 hwmon_vid autofs4
> nfs lockd nfs_acl sunrpc cpufreq_ondemand loop dm_multipath ipv6
> nvidia(P)(U) forcedeth snd_hda_intel(U) snd_seq_dummy(U) parport_pc parport
> snd_seq_oss(U) snd_seq_midi_event(U) i2c_nforce2 snd_seq(U) i2c_core
> firewire_ohci firewire_core snd_seq_device(U) snd_pcm_oss(U)
> snd_mixer_oss(U) button pcspkr lirc_atiusb(U) crc_itu_t ns558 snd_pcm(U)
> k8temp sr_mod cdrom snd_timer(U) snd_page_alloc(U) hwmon gameport
> snd_hwdep(U) snd(U) soundcore serio_raw sg lirc_dev(U) pata_amd dm_snapshot
> dm_zero dm_mirror dm_mod sata_nv ata_generic libata sd_mod scsi_mod ext3 jbd
> mbcache uhci_hcd ohci_hcd ehci_hcd
> Oct 31 18:17:31 LivingRoom kernel: Pid: 2624, comm: pulseaudio Tainted:
> P        2.6.23.14-107.fc8 #1
> Oct 31 18:17:31 LivingRoom kernel: RIP: 0010:[<ffffffff881e2e59>]
> [<ffffffff881e2e59>] :snd_hda_intel:snd_hda_mixer_bind_ctls_get+0x2b/0x5d
> Oct 31 18:17:31 LivingRoom kernel: RSP: 0000:ffff81002336dd48  EFLAGS:
> 00010282
> Oct 31 18:17:31 LivingRoom kernel: RAX: 0000000000000000 RBX:
> ffff81002a547780 RCX: ffff81002336c000
> Oct 31 18:17:31 LivingRoom kernel: RDX: ffffffff8125cd80 RSI:
> ffff81002865a000 RDI: ffff81002e93e1d4
> Oct 31 18:17:31 LivingRoom kernel: RBP: ffff810010661000 R08:
> ffff81002336c000 R09: 000000000000b6ea
> Oct 31 18:17:31 LivingRoom kernel: R10: 00000000000006f5 R11:
> 0000000000200202 R12: 0000000000070005
> Oct 31 18:17:31 LivingRoom kernel: R13: ffff810010661000 R14:
> ffff81002e93e1d0 R15: ffff81002a606800
> Oct 31 18:17:31 LivingRoom kernel: FS:  00002aaaaaad8230(0000)
> GS:ffff81002fb01300(0000) knlGS:0000000000000000
> Oct 31 18:17:31 LivingRoom kernel: CS:  0010 DS: 0000 ES: 0000 CR0:
> 000000008005003b
> Oct 31 18:17:31 LivingRoom kernel: CR2: 000000000007000d CR3:
> 000000002327b000 CR4: 00000000000006e0
> Oct 31 18:17:31 LivingRoom kernel: DR0: 0000000000000000 DR1:
> 0000000000000000 DR2: 0000000000000000
> Oct 31 18:17:31 LivingRoom kernel: DR3: 0000000000000000 DR6:
> 00000000ffff0ff0 DR7: 0000000000000400
> Oct 31 18:17:31 LivingRoom kernel: Process pulseaudio (pid: 2624, threadinfo
> ffff81002336c000, task ffff81002865a000)
> Oct 31 18:17:31 LivingRoom kernel: Stack:  ffffffff8140ebd0 00000000fffffff3
> ffff81002bf74968 ffff81002bf74800
> Oct 31 18:17:31 LivingRoom kernel:  00007fffef7b84d0 ffffffff880f4d3d
> ffff81002bf74a10 0000000000000000
> Oct 31 18:17:31 LivingRoom kernel:  ffff810010661000 ffffffff880f5bbc
> ffff810000000000 ffff81002865a000
> Oct 31 18:17:31 LivingRoom kernel: Call Trace:
> Oct 31 18:17:31 LivingRoom kernel:  [<ffffffff880f4d3d>]
> :snd:snd_ctl_elem_read+0x9c/0xb2
> Oct 31 18:17:31 LivingRoom kernel:  [<ffffffff880f5bbc>]
> :snd:snd_ctl_ioctl+0x315/0x745
> Oct 31 18:17:31 LivingRoom kernel:  [<ffffffff81030eb3>]
> default_wake_function+0x0/0xe
> Oct 31 18:17:31 LivingRoom kernel:  [<ffffffff81030eb3>]
> default_wake_function+0x0/0xe
> Oct 31 18:17:31 LivingRoom kernel:  [<ffffffff880f687e>]
> :snd:snd_ctl_read+0x184/0x1c6
> Oct 31 18:17:31 LivingRoom kernel:  [<ffffffff81250b75>] unix_poll+0x0/0x96
> Oct 31 18:17:31 LivingRoom kernel:  [<ffffffff810a7625>] do_ioctl+0x21/0x6b
> Oct 31 18:17:31 LivingRoom kernel:  [<ffffffff810a78b2>]
> vfs_ioctl+0x243/0x25c
> Oct 31 18:17:31 LivingRoom kernel:  [<ffffffff810a7924>] sys_ioctl+0x59/0x79
> Oct 31 18:17:31 LivingRoom kernel:  [<ffffffff8100bd45>] tracesys+0xd5/0xda
> Oct 31 18:17:31 LivingRoom kernel:
> Oct 31 18:17:31 LivingRoom kernel:
> Oct 31 18:17:31 LivingRoom kernel: Code: 49 8b 44 24 08 4c 89 ee 48 89 df 48
> 89 43 78 49 8b 04 24 ff
> Oct 31 18:17:31 LivingRoom kernel: RIP  [<ffffffff881e2e59>]
> :snd_hda_intel:snd_hda_mixer_bind_ctls_get+0x2b/0x5d
> Oct 31 18:17:31 LivingRoom kernel:  RSP <ffff81002336dd48>
> Oct 31 18:17:31 LivingRoom kernel: CR2: 000000000007000d
> Oct 31 18:34:03 LivingRoom lircd-0.8.3-CVS[2215]: removed client
> Oct 31 18:41:31 LivingRoom lircd-0.8.3-CVS[2215]: removed client
>
The problem appears to be a sound issue and not a remote control
issue. If I am reading this correctly it crashed while executing
pulseaudio. I would try disabling that and use alsa instead.

John


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