On 14 April 2010 10:26, Takashi Iwai <tiwai@xxxxxxx> wrote: > At Wed, 14 Apr 2010 00:23:37 +0400, > Alexander Beregalov wrote: >> >> Hi Takashi >> >> Could you please help me how to debug an issue. >> Sometimes soung hungs, it happens few days (up to a week) after boot. >> I have no idea how to reproduce it or how to debug it. >> That's why it is very hard to bisect, I have not tried, the better way >> should exist. >> The problem appeared somewhere after 2.6.33. >> >> Card is M-Audio Revo 5.1 (1412:1724). >> >> After it hungs ALSA continues to play last sound frame forever. >> When I try to play something else playing frame changes. >> Only reboot heals it. >> >> rmmod hungs at >> INFO: task rmmod:30356 blocked for more than 120 seconds. >> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. >> rmmod D db281e7c 0 30356 2345 0x00000004 >> db281e8c 00000086 00000002 db281e7c cc2d7b90 00000000 c14e8b80 09c3638a >> c10252a0 00000001 c14e2000 c14e2000 c14e8b80 c14e8b80 cc2d7a00 db281e8c >> 00000246 db281e8c c1043d23 00000001 f6923000 f69231b4 db281e9c db281ebc >> Call Trace: >> [<c10252a0>] ? __wake_up+0x40/0x50 >> [<c1043d23>] ? prepare_to_wait+0x43/0x70 >> [<f8ce328d>] snd_card_free+0x5d/0x90 [snd] >> [<c1043af0>] ? autoremove_wake_function+0x0/0x40 >> [<f9ebcaa6>] snd_vt1724_remove+0x13/0x25 [snd_ice1724] >> [<c11cddb9>] pci_device_remove+0x19/0x40 >> [<c1239f3e>] __device_release_driver+0x3e/0x90 >> [<c123a017>] driver_detach+0x87/0x90 >> [<c1239323>] bus_remove_driver+0x63/0xa0 >> [<c123a526>] driver_unregister+0x46/0x80 >> [<c10d616d>] ? sysfs_remove_file+0xd/0x10 >> [<c11cdfed>] pci_unregister_driver+0x2d/0x80 >> [<f9ebca91>] alsa_card_ice1724_exit+0xd/0xf [snd_ice1724] >> [<c1057bee>] sys_delete_module+0x15e/0x210 >> [<c107f91f>] ? remove_vma+0x3f/0x60 >> [<c1080902>] ? do_munmap+0x202/0x2d0 >> [<c1002b50>] sysenter_do_call+0x12/0x26 > > This is odd. Don't you see any other messages before that? No messages. I can try to boot with ignore_loglevel parameter. > > There are almost no change in ice172x. Thus, if any, the regression > must be in ALSA core. There have been many changes of PCM hw-updater, > at least. It seems the bug is in the core, but in this case I should not be the only reporter. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
