From: "Alexander V. Lukyanov" <lav@long.yar.ru>
To: linux-kernel@vger.kernel.org
Subject: sound problems caused by masking irq for too long
Date: Sun, 12 Nov 2000 16:56:09 +0300 [thread overview]
Message-ID: <20001112165609.A1006@long.yar.ru> (raw)
Hi!
In some cases sound gets interrupted for a moment, this happens in two
occasions. When unmaskirq flag is off on ide cdrom and it is accessed,
and when tdfxfb console (800x600) flashes (tput flash, or `set bell-style
visible' in .inputrc).
It seems the problem is caused by masking irq for too long, and then
the sound dma buffer underruns. This is fixed by unmasking irq for ide
cdrom by `hdparm -u1 /dev/cdrom', and by changing spin_(un)lock_irq
in console.c to spin_(un)lock_bh.
This was observed on 2.4.0-pre10, the problem with ide also exists on
2.2.17, the console.c in 2.2.17 only disables CONSOLE_BH.
The audio card is old awe32 (isa), sound driver is modular.
--
Alexander.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/
next reply other threads:[~2000-11-12 13:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-11-12 13:56 Alexander V. Lukyanov [this message]
2000-11-12 16:16 ` Igmar Palsenberg
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=20001112165609.A1006@long.yar.ru \
--to=lav@long.yar.ru \
--cc=lav@yars.free.net \
--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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®