[mythtv-users] mythcommflag GPF????

[Yan Seiner]

Any kernel gurus around?

My system froze up a couple of times today, which is a rare occurrence.  Actually, other than the fact that it happened twice, it's unique.  I'm sitting at it and just got 2 GPFs; both due to commflag. This of course worries me greatly....

I'm running 0.21-fixes, from debian-multimedia.org on debian lenny.

Here's the latest.

[16330.275035] general protection fault: 0000 [#2] SMP 
[16330.275040] last sysfs file: /sys/class/i2c-adapter/i2c-1/1-002e/fan1_input
[16330.275042] CPU 0 
[16330.275044] Modules linked in: xt_multiport iptable_filter ip_tables x_tables tcp_diag inet_diag nvidia(P) ppdev lp tun video output ac battery powernow_k8 cpufreq_ondemand cpufreq_userspace cpufreq_conservative cpufreq_powersave cpufreq_stats freq_table nfsd auth_rpcgss exportfs nfs lockd nfs_acl sunrpc fuse sg sr_mod cdrom usb_storage adt7475 it87 hwmon_vid loop keyspan keyspan_pda joydev usblp or51132 snd_usb_audio cx88_dvb cx88_vp3054_i2c tuner_simple snd_usb_lib snd_seq_dummy tuner_types tda9887 pcspkr tda8290 serio_raw psmouse k8temp tuner snd_seq_oss snd_hda_intel snd_seq_midi snd_seq_midi_event snd_seq snd_pcm_oss snd_mixer_oss shpchp pci_hotplug cx88_alsa cx8800 cx8802 cx88xx ir_common snd_pcm snd_rawmidi i2c_algo_bit snd_timer snd_page_alloc videobuf_dvb dvb_core compat_ioctl32 videodev v4l1_compat tveeprom v4l2_common videobuf_dma_sg videobuf_core btcx_risc snd_seq_device snd_hwdep snd soundcore usbserial parport_pc parport i2c_nforce2 i2c_core button evdev ext3 jbd mbcache raid456 async_xor async_memcpy async_tx xor raid1 raid0 md_mod osst st sd_mod usbhid hid jmicron sata_nv ata_generic floppy ahci sata_sil24 libata ohci1394 ieee1394 3c59x mii forcedeth amd74xx ide_pci_generic ide_core ohci_hcd ehci_hcd thermal processor fan thermal_sys aic79xx scsi_transport_spi scsi_mod
[16330.275118] Pid: 10452, comm: mythcommflag Tainted: P      D    2.6.28.1 #1
[16330.275120] RIP: 0010:[<ffffffff802cdf52>]  [<ffffffff802cdf52>] do_mpage_readpage+0x30b/0x47a
[16330.275127] RSP: 0018:ffff8800a612fb98  EFLAGS: 00010246
[16330.275129] RAX: 0000000000000000 RBX: ffe20001b31d3100 RCX: 0000000000001000
[16330.275131] RDX: 6db6db6db6db6db7 RSI: 00000007fb3723b9 RDI: db6d3edbf55a1000
[16330.275132] RBP: ffff8800a612fc88 R08: 00000000fa95e584 R09: ffff8800a612fcf8
[16330.275134] R10: 000000001c30f932 R11: 0000000000000001 R12: 0000000000000100
[16330.275136] R13: ffffe20001dabb38 R14: 0000000000000000 R15: 000000007fb3723c
[16330.275139] FS:  00000000429b8950(0063) GS:ffffffff80682000(0000) knlGS:00000000f7ba96b0
[16330.275141] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[16330.275143] CR2: 00007f6244e29718 CR3: 0000000120a57000 CR4: 00000000000006e0
[16330.275145] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[16330.275147] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[16330.275149] Process mythcommflag (pid: 10452, threadinfo ffff8800a612e000, task ffff88016b9f0b30)
[16330.275151] Stack:
[16330.275152]  ffff8800a612fbb8 ffffffff8022d352 ffffffffa0239a1b ffff8800a612fcf8
[16330.275155]  ffff8800a612fd00 000000018022f966 0000000000000000 ffffe200007e4c10
[16330.275158]  ffff880000000100 0000000000000001 0000000000000000 000000008022fce0
[16330.275162] Call Trace:
[16330.275164]  [<ffffffff8022d352>] ? place_entity+0x68/0x89
[16330.275168]  [<ffffffffa0239a1b>] ? ext3_get_block+0x0/0xf8 [ext3]
[16330.275181]  [<ffffffff80232ff1>] ? check_preempt_wakeup+0x145/0x18d
[16330.275185]  [<ffffffff802ce10e>] ? mpage_readpage+0x4d/0x66
[16330.275189]  [<ffffffffa0239a1b>] ? ext3_get_block+0x0/0xf8 [ext3]
[16330.275198]  [<ffffffff8023ef4d>] current_fs_time+0x1e/0x24
[16330.275201]  [<ffffffff8022db63>] __wake_up_common+0x46/0x76
[16330.275204]  [<ffffffff802bd6ed>] mnt_want_write+0x6d/0x7f
[16330.275207]  [<ffffffff802ba83f>] touch_atime+0xaf/0xfa
[16330.275210]  [<ffffffff8045499f>] _spin_lock+0x5/0x7
[16330.275213]  [<ffffffff8027b180>] file_read_actor+0x9d/0x11a
[16330.275216]  [<ffffffff8027b47c>] find_get_page+0x1a/0x77
[16330.275219]  [<ffffffff8027cc95>] generic_file_aio_read+0x36f/0x51f
[16330.275222]  [<ffffffff802aa20a>] do_sync_read+0xce/0x113
[16330.275225]  [<ffffffff8024fd92>] hrtimer_try_to_cancel+0x69/0x72
[16330.275229]  [<ffffffff8024d342>] autoremove_wake_function+0x0/0x2e
[16330.275232]  [<ffffffff8024fda7>] hrtimer_cancel+0xc/0x16
[16330.275235]  [<ffffffff80453bd9>] do_nanosleep+0x71/0xac
[16330.275238]  [<ffffffff80236c1e>] finish_task_switch+0x2b/0xc4
[16330.275241]  [<ffffffff8024ffdb>] hrtimer_nanosleep+0x8c/0xfd
[16330.275244]  [<ffffffff8024f842>] hrtimer_wakeup+0x0/0x21
[16330.275246]  [<ffffffff802aac04>] vfs_read+0xaa/0x153
[16330.275249]  [<ffffffff802aad69>] sys_read+0x45/0x6e
[16330.275252]  [<ffffffff8020be3a>] system_call_fastpath+0x16/0x1b
[16330.275255] Code: 00 29 d1 48 ba b7 6d db b6 6d db b6 6d 48 c1 f8 03 48 0f af c2 48 c1 e0 0c 48 01 c7 48 b8 00 00 00 00 00 88 ff ff 48 01 c7 31 c0 <f3> aa 65 48 8b 04 25 10 00 00 00 ff 88 48 e0 ff ff 45 85 f6 75 
[16330.275278] RIP  [<ffffffff802cdf52>] do_mpage_readpage+0x30b/0x47a
[16330.275281]  RSP <ffff8800a612fb98>
[16330.275367] ---[ end trace 79f3a5163a214992 ]---
[16330.275370] note: mythcommflag[10452] exited with preempt_count 1