From: Thomas Charbonnel <thomas@undata.org>
To: ALSA development <alsa-devel@alsa-project.org>
Subject: Rawmidi and CONFIG_DEBUG_SPINLOCK_SLEEP
Date: Thu, 29 Jan 2004 21:27:07 +0100 [thread overview]
Message-ID: <40196C9B.3050901@undata.org> (raw)
Hi,
I noticed this problem today using midi on my setup (alsa 1.0.1, kernel
2.6.1 with CONFIG_DEBUG_SPINLOCK_SLEEP) :
Debug: sleeping function called from invalid context at
include/asm/uaccess.h:473
in_atomic():1, irqs_disabled():1
Call Trace:
[<c012139c>] __might_sleep+0xac/0xe0
[<c010b170>] handle_signal+0xd0/0x140
[<c03955ef>] snd_rawmidi_kernel_read1+0x10f/0x170
[<c03957e7>] snd_rawmidi_read+0x147/0x1b0
[<c01131cf>] restore_i387_fxsave+0x8f/0xa0
[<c015b2f3>] vfs_read+0xd3/0x140
[<c015b59f>] sys_read+0x3f/0x60
[<c010b4bb>] syscall_call+0x7/0xb
I'm sorry I didn't check if this was fixed in 1.0.2, but though it was
worth mentioning. This caused regular (~ 1/second) dropouts in pd while
using midi.
Thomas
-------------------------------------------------------
The SF.Net email is sponsored by EclipseCon 2004
Premiere Conference on Open Tools Development and Integration
See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
http://www.eclipsecon.org/osdn
next reply other threads:[~2004-01-29 20:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-29 20:27 Thomas Charbonnel [this message]
2004-01-31 8:44 ` Rawmidi and CONFIG_DEBUG_SPINLOCK_SLEEP Jaroslav Kysela
2004-02-01 11:18 ` Thomas Charbonnel
2004-02-01 14:30 ` Thomas Charbonnel
2004-02-01 16:37 ` Jaroslav Kysela
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=40196C9B.3050901@undata.org \
--to=thomas@undata.org \
--cc=alsa-devel@alsa-project.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.