the latest 0.23.1 was installed. upgrading to 0.24 fixed the problem. i
didn't install the dbg package first so i dont have a trace to upload.
still all 10.04 and 10.10 installs dont have 0.24 enabled and could
experience similar problems. messages before the segfault may indicate
that hdmi and nvidia may have something to do with it:
Jan 6 01:56:41 lmc kernel: [ 23.268040] WARNING: at
/build/buildd/linux-2.6.35/lib/vsprintf.c:1283 vsnprintf+0x416/0x430()
Jan 6 01:56:41 lmc kernel: [ 23.268042] Hardware name: System Product Name
Jan 6 01:56:41 lmc kernel: [ 23.268044] Modules linked in: lirc_i2c(C)
autofs4 nfsd exportfs nfs lockd fscache nfs_acl auth_rpcgss
snd_hda_codec_nvhdmi sunrpc ir_lirc_codec tuner_simple tuner_types lirc_dev
ir_sony_decoder tuner ir_jvc_decoder msp3400 ir_rc6_decoder
snd_hda_codec_realtek rc_imon_pad ir_rc5_decoder saa7115 snd_hda_intel ivtv
i2c_algo_bit cx2341x v4l2_common videodev ir_nec_decoder imon snd_hda_codec
v4l1_compat snd_hwdep tveeprom k8temp nvidia(P) i2c_piix4 asus_atk0110 snd_pcm
psmouse serio_raw ir_core ppdev snd_seq_midi parport_pc snd_rawmidi
snd_seq_midi_event snd_seq snd_timer snd_seq_device snd soundcore
snd_page_alloc ati_agp agpgart lp parport usbhid hid ahci r8169 libahci mii
pata_atiixp
Jan 6 01:56:41 lmc kernel: [ 23.268095] Pid: 804, comm: hd-audio1 Tainted: P
C 2.6.35-24-generic #42-Ubuntu
Jan 6 01:56:41 lmc kernel: [ 23.268098] Call Trace:
Jan 6 01:56:41 lmc kernel: [ 23.268107] [<c014ad02>]
warn_slowpath_common+0x72/0xa0
Jan 6 01:56:41 lmc kernel: [ 23.268111] [<c0358f46>] ? vsnprintf+0x416/0x430
Jan 6 01:56:41 lmc kernel: [ 23.268114] [<c0358f46>] ? vsnprintf+0x416/0x430
Jan 6 01:56:41 lmc kernel: [ 23.268120] [<c014ad52>]
warn_slowpath_null+0x22/0x30
Jan 6 01:56:41 lmc kernel: [ 23.268123] [<c0358f46>] vsnprintf+0x416/0x430
Jan 6 01:56:41 lmc kernel: [ 23.268127] [<c0358fea>] snprintf+0x1a/0x20
Jan 6 01:56:41 lmc kernel: [ 23.268139] [<f80f066d>]
snd_print_pcm_bits+0x5d/0x80 [snd_hda_codec]
Jan 6 01:56:41 lmc kernel: [ 23.268149] [<f80f98a7>]
hdmi_show_short_audio_desc+0xf7/0x100 [snd_hda_codec]
Jan 6 01:56:41 lmc kernel: [ 23.268153] [<c0358fea>] ? snprintf+0x1a/0x20
Jan 6 01:56:41 lmc kernel: [ 23.268161] [<f80f990f>]
snd_hdmi_show_eld+0x5f/0xa0 [snd_hda_codec]
Jan 6 01:56:41 lmc kernel: [ 23.268170] [<f80f9cb0>] ?
snd_hdmi_get_eld+0xd0/0x100 [snd_hda_codec]
Jan 6 01:56:41 lmc kernel: [ 23.268178] [<f80f9cb0>] ?
snd_hdmi_get_eld+0xd0/0x100 [snd_hda_codec]
Jan 6 01:56:41 lmc kernel: [ 23.268183] [<f804f64e>]
hdmi_present_sense+0x5e/0x70 [snd_hda_codec_nvhdmi]
Jan 6 01:56:41 lmc kernel: [ 23.268187] [<f804f74d>]
hdmi_intrinsic_event+0xed/0x100 [snd_hda_codec_nvhdmi]
Jan 6 01:56:41 lmc kernel: [ 23.268191] [<f804f7a6>]
hdmi_unsol_event+0x46/0x80 [snd_hda_codec_nvhdmi]
Jan 6 01:56:41 lmc kernel: [ 23.268194] [<c013eb8d>] ?
finish_task_switch+0x3d/0xc0
Jan 6 01:56:41 lmc kernel: [ 23.268201] [<f80f0106>]
process_unsol_events+0x56/0x70 [snd_hda_codec]
Jan 6 01:56:41 lmc kernel: [ 23.268207] [<c0161afe>]
run_workqueue+0x8e/0x150
Jan 6 01:56:41 lmc kernel: [ 23.268214] [<f80f00b0>] ?
process_unsol_events+0x0/0x70 [snd_hda_codec]
Jan 6 01:56:41 lmc kernel: [ 23.268218] [<c0161c44>] worker_thread+0x84/0xe0
Jan 6 01:56:41 lmc kernel: [ 23.268222] [<c0165ec0>] ?
autoremove_wake_function+0x0/0x50
Jan 6 01:56:41 lmc kernel: [ 23.268226] [<c0161bc0>] ?
worker_thread+0x0/0xe0
Jan 6 01:56:41 lmc kernel: [ 23.268229] [<c0165a94>] kthread+0x74/0x80
Jan 6 01:56:41 lmc kernel: [ 23.268232] [<c0165a20>] ? kthread+0x0/0x80
Jan 6 01:56:41 lmc kernel: [ 23.268236] [<c010363e>]
kernel_thread_helper+0x6/0x10
Jan 6 01:56:41 lmc kernel: [ 23.268239] ---[ end trace c48fb5460fd593de ]---
Jan 6 01:56:41 lmc kernel: [ 23.268241] HDMI: supports coding type LPCM:
channels = 2, rates = 44100 48000 88200, bits = 16
Jan 6 01:56:42 lmc kernel: [ 24.053019] HDMI: detected monitor SAMSUNG
Jan 6 01:56:42 lmc kernel: [ 24.053022] at connection type HDMI
Jan 6 01:56:42 lmc kernel: [ 24.053025] HDMI: available speakers: FL/FR
Jan 6 01:56:42 lmc kernel: [ 24.053029] HDMI: supports coding type LPCM:
channels = 2, rates = 44100 48000 88200, bits = 16
Jan 6 01:57:07 lmc kernel: [ 49.325593] EXT4-fs (sdb1): re-mounted. Opts:
errors=remount-ro,commit=0
Jan 6 01:58:11 lmc kernel: [ 113.005023] Clocksource tsc unstable (delta =
-99895932 ns)
Jan 6 01:58:49 lmc kernel: [ 150.925992] mythbackend[1843]: segfault at
afcfaffc ip 026b9ed6 sp afcfaff0 error 6 in libc-2.12.1.so[2649000+157000]
Jan 6 02:00:07 lmc kernel: [ 229.289831] mythbackend[2288]: segfault at
b0ffcffc ip 05053ed6 sp b0ffcff0 error 6 in libc-2.12.1.so[4fe3000+157000]
Jan 6 02:00:52 lmc kernel: [ 273.850700] mythbackend[2320]: segfault at
afe23ffc ip 01d54ed6 sp afe23ff0 error 6 in libc-2.12.1.so[1ce4000+157000]
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https://bugs.launchpad.net/bugs/698286
Title:
Mythtv-backend keeps crashing (mostly when recording)
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