From: Erik Mouw <erik@harddisk-recovery.com>
To: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: [BUG 2.6.0-test11] debug messages, ALSA or USB related
Date: Tue, 2 Dec 2003 00:39:41 +0100 [thread overview]
Message-ID: <20031201233941.GA4017@bitwizard.nl> (raw)
Hi,
While playing sound on a USB audio device I got the following debug
messages:
Debug: sleeping function called from invalid context at kernel/sched.c:1751
in_atomic():1, irqs_disabled():1
Call Trace:
[<c011dedb>] __might_sleep+0xab/0xd0
[<c011cd6f>] wait_for_completion+0x1f/0xe0
[<c01ec5fa>] get_device+0x1a/0x30
[<e0b4b1a9>] hcd_unlink_urb+0x169/0x260 [usbcore]
[<e0c04730>] snd_complete_urb+0x0/0xc0 [snd_usb_audio]
[<e0b4af27>] hcd_submit_urb+0x107/0x180 [usbcore]
[<e0b4ba42>] usb_unlink_urb+0x32/0x70 [usbcore]
[<e0c04960>] deactivate_urbs+0xb0/0xc0 [snd_usb_audio]
[<e0c04bd4>] snd_usb_pcm_trigger+0x54/0x60 [snd_usb_audio]
[<e0bce0a7>] snd_pcm_do_stop+0x27/0x30 [snd_pcm]
[<e0bcdde4>] snd_pcm_action_single+0x34/0x60 [snd_pcm]
[<e0bcde77>] snd_pcm_action+0x67/0x70 [snd_pcm]
[<e0bce150>] snd_pcm_stop+0x20/0x30 [snd_pcm]
[<e0bd2cb4>] snd_pcm_update_hw_ptr+0x134/0x1d0 [snd_pcm]
[<e0bd67c5>] snd_pcm_lib_write1+0x4c5/0x4e0 [snd_pcm]
[<c015fa14>] pipe_wait+0x94/0xb0
[<c011e2c0>] autoremove_wake_function+0x0/0x50
[<c016d1a1>] update_atime+0xc1/0xd0
[<e0bd686e>] snd_pcm_lib_write+0x8e/0xb0 [snd_pcm]
[<e0bd6220>] snd_pcm_lib_write_transfer+0x0/0xe0 [snd_pcm]
[<e0bd15bc>] snd_pcm_playback_ioctl1+0x40c/0x4a0 [snd_pcm]
[<c01538c9>] vfs_read+0xb9/0x120
[<c0165604>] sys_ioctl+0xf4/0x2b0
[<c010a36f>] syscall_call+0x7/0xb
bad: scheduling while atomic!
Call Trace:
[<c011ca8c>] schedule+0x55c/0x570
[<c010acdc>] common_interrupt+0x18/0x20
[<c011cdd8>] wait_for_completion+0x88/0xe0
[<c011caf0>] default_wake_function+0x0/0x20
[<c011caf0>] default_wake_function+0x0/0x20
[<e0b4b1a9>] hcd_unlink_urb+0x169/0x260 [usbcore]
[<e0c04730>] snd_complete_urb+0x0/0xc0 [snd_usb_audio]
[<e0b4af27>] hcd_submit_urb+0x107/0x180 [usbcore]
[<e0b4ba42>] usb_unlink_urb+0x32/0x70 [usbcore]
[<e0c04960>] deactivate_urbs+0xb0/0xc0 [snd_usb_audio]
[<e0c04bd4>] snd_usb_pcm_trigger+0x54/0x60 [snd_usb_audio]
[<e0bce0a7>] snd_pcm_do_stop+0x27/0x30 [snd_pcm]
[<e0bcdde4>] snd_pcm_action_single+0x34/0x60 [snd_pcm]
[<e0bcde77>] snd_pcm_action+0x67/0x70 [snd_pcm]
[<e0bce150>] snd_pcm_stop+0x20/0x30 [snd_pcm]
[<e0bd2cb4>] snd_pcm_update_hw_ptr+0x134/0x1d0 [snd_pcm]
[<e0bd67c5>] snd_pcm_lib_write1+0x4c5/0x4e0 [snd_pcm]
[<c015fa14>] pipe_wait+0x94/0xb0
[<c011e2c0>] autoremove_wake_function+0x0/0x50
[<c016d1a1>] update_atime+0xc1/0xd0
[<e0bd686e>] snd_pcm_lib_write+0x8e/0xb0 [snd_pcm]
[<e0bd6220>] snd_pcm_lib_write_transfer+0x0/0xe0 [snd_pcm]
[<e0bd15bc>] snd_pcm_playback_ioctl1+0x40c/0x4a0 [snd_pcm]
[<c01538c9>] vfs_read+0xb9/0x120
[<c0165604>] sys_ioctl+0xf4/0x2b0
[<c010a36f>] syscall_call+0x7/0xb
The USB device is:
T: Bus=07 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 3 Spd=12 MxCh= 0
D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0471 ProdID=0104 Rev= 1.00
S: Manufacturer=Philips Electronics
S: Product=Philips USB Digital Speaker System
C:* #Ifs= 3 Cfg#= 1 Atr=40 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio
I: If#= 1 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
I: If#= 1 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
E: Ad=04(O) Atr=09(Isoc) MxPS= 56 Ivl=1ms
I: If#= 1 Alt= 2 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
E: Ad=04(O) Atr=09(Isoc) MxPS= 112 Ivl=1ms
I: If#= 1 Alt= 3 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
E: Ad=04(O) Atr=09(Isoc) MxPS= 112 Ivl=1ms
I: If#= 1 Alt= 4 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
E: Ad=04(O) Atr=09(Isoc) MxPS= 224 Ivl=1ms
I: If#= 1 Alt= 5 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
E: Ad=04(O) Atr=09(Isoc) MxPS= 168 Ivl=1ms
I: If#= 1 Alt= 6 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
E: Ad=04(O) Atr=09(Isoc) MxPS= 336 Ivl=1ms
I: If#= 2 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=hid
E: Ad=83(I) Atr=03(Int.) MxPS= 1 Ivl=10ms
At first glance it looks USB related, but it might as well be that the
ALSA code is the real culprit.
Erik
--
+-- Erik Mouw -- www.harddisk-recovery.com -- +31 70 370 12 90 --
| Lab address: Delftechpark 26, 2628 XH, Delft, The Netherlands
| Data lost? Stay calm and contact Harddisk-recovery.com
next reply other threads:[~2003-12-01 23:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-01 23:39 Erik Mouw [this message]
2003-12-02 14:17 ` [BUG 2.6.0-test11] debug messages, ALSA or USB related Takashi Iwai
2003-12-02 14:54 ` Erik Mouw
2003-12-02 15:04 ` Takashi Iwai
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20031201233941.GA4017@bitwizard.nl \
--to=erik@harddisk-recovery.com \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.