Fw: [Bugme-new] [Bug 3890] New: entry in dmesg log triggered via userspace

Fw: [Bugme-new] [Bug 3890] New: entry in dmesg log triggered via userspace

[Andrew Morton]

Begin forwarded message:

Date: Sun, 12 Dec 2004 13:11:43 -0800
From: bugme-daemon@osdl.org
To: bugme-new@lists.osdl.org
Subject: [Bugme-new] [Bug 3890] New: entry in dmesg log triggered via userspace


http://bugme.osdl.org/show_bug.cgi?id=3890

           Summary: entry in dmesg log triggered via userspace
    Kernel Version: 2.6.10-rc3 i686 AMD Athlon(tm) XP 2600+ AuthenticAMD -
                    vanilla,
            Status: NEW
          Severity: normal
             Owner: perex@perex.cz
         Submitter: bug-kernel@leroutier.net


Distribution: Gentoo
Hardware Environment: NForce2 onboard (in chipset)
Software Environment: gcc 3.4.3, PREMPT
Problem Description:

from time to time, i look to what dmesg has to say.
once, i found :

scheduling while atomic: totem/0x00000001/6529
 [<c02c5786>] schedule+0x4d6/0x590
 [<c02c5cdd>] schedule_timeout+0x5d/0xb0
 [<c0120550>] process_timeout+0x0/0x10
 [<c012093f>] msleep+0x2f/0x40
 [<e0e5718c>] snd_intel8x0_setup_pcm_out+0xec/0x1b0 [snd_intel8x0]
 [<e0e572e4>] snd_intel8x0_pcm_prepare+0x94/0xb0 [snd_intel8x0]
 [<e0dd9a11>] snd_pcm_do_prepare+0x11/0x40 [snd_pcm]
 [<e0dd8ce8>] snd_pcm_action_single+0x38/0xa0 [snd_pcm]
 [<e0dd8f00>] snd_pcm_action_nonatomic+0x80/0x90 [snd_pcm]
 [<e0dd9ac7>] snd_pcm_prepare+0x57/0x80 [snd_pcm]
 [<e0ddc2c6>] snd_pcm_playback_ioctl1+0x56/0x320 [snd_pcm]
 [<e0ddc8a0>] snd_pcm_playback_ioctl+0x40/0x60 [snd_pcm]
 [<c0166db1>] sys_ioctl+0x1e1/0x250
 [<c0102719>] sysenter_past_esp+0x52/0x71

it is not an oops, but i suppose it has a purpose (other than filling logs)

Steps to reproduce:
sorry, i really don't know. it looks like i was using totem (with gstreamer
backend) when i triggered it

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Re: Fw: [Bugme-new] [Bug 3890] New: entry in dmesg log triggered via userspace

[Takashi Iwai]

At Sun, 12 Dec 2004 17:36:16 -0800,
Andrew Morton wrote:
> 
> Distribution: Gentoo
> Hardware Environment: NForce2 onboard (in chipset)
> Software Environment: gcc 3.4.3, PREMPT
> Problem Description:
> 
> from time to time, i look to what dmesg has to say.
> once, i found :
> 
> scheduling while atomic: totem/0x00000001/6529
>  [<c02c5786>] schedule+0x4d6/0x590
>  [<c02c5cdd>] schedule_timeout+0x5d/0xb0
>  [<c0120550>] process_timeout+0x0/0x10
>  [<c012093f>] msleep+0x2f/0x40
>  [<e0e5718c>] snd_intel8x0_setup_pcm_out+0xec/0x1b0 [snd_intel8x0]
>  [<e0e572e4>] snd_intel8x0_pcm_prepare+0x94/0xb0 [snd_intel8x0]
>  [<e0dd9a11>] snd_pcm_do_prepare+0x11/0x40 [snd_pcm]
>  [<e0dd8ce8>] snd_pcm_action_single+0x38/0xa0 [snd_pcm]
>  [<e0dd8f00>] snd_pcm_action_nonatomic+0x80/0x90 [snd_pcm]
>  [<e0dd9ac7>] snd_pcm_prepare+0x57/0x80 [snd_pcm]
>  [<e0ddc2c6>] snd_pcm_playback_ioctl1+0x56/0x320 [snd_pcm]
>  [<e0ddc8a0>] snd_pcm_playback_ioctl+0x40/0x60 [snd_pcm]
>  [<c0166db1>] sys_ioctl+0x1e1/0x250
>  [<c0102719>] sysenter_past_esp+0x52/0x71
> 
> it is not an oops, but i suppose it has a purpose (other than filling logs)

This one is already fixed in Linus's bk tree.

ChangeSet@1.2119.1.23, 2004-12-07 08:06:26-08:00, tiwai@suse.de
  [PATCH] alsa: fix sleep in atomic during prepare callback


ciao,

Takashi


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