From: Jeff Garzik <jgarzik@mandrakesoft.com>
To: "Feldman, Scott" <scott.feldman@intel.com>
Cc: "'Troy Wilson'" <tcw@tempest.prismnet.com>,
linux-kernel@vger.kernel.org, Martin.Bligh@us.ibm.com,
tcw@prismnet.com, Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: mdelay causes BUG, please use udelay
Date: Tue, 20 Aug 2002 20:59:25 -0400 [thread overview]
Message-ID: <3D62E5ED.6020707@mandrakesoft.com> (raw)
In-Reply-To: 288F9BF66CD9D5118DF400508B68C4460283E4AF@orsmsx113.jf.intel.com
Feldman, Scott wrote:
>>- msec_delay(10);
>>+ usec_delay(10000);
>
>
> Jeff, 10000 seems on the border of what's OK. If it's acceptable, then
> let's go for that. Otherwise, we're going to have to chain several
> mod_timer callbacks together to do a controller reset.
That definitely wants fixing. Since I like doing resets and similar
slow-paths in process context -- sleep for as long as you want -- I
would say kick over to a function called via schedule_task()
Just make sure other parts of the driver that may be called
asynchronously, such as ethtool ioctls, are disabled. Remember that
tx_timeout holds the dev->xmit_lock as well, so spending a long time in
there is a bad idea in general.
I would probably call netif_carrier_off() first thing in tx_timeout, too.
Jeff
next prev parent reply other threads:[~2002-08-21 0:55 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-21 0:20 mdelay causes BUG, please use udelay Feldman, Scott
2002-08-21 0:27 ` Benjamin LaHaise
2002-08-21 0:28 ` H. Peter Anvin
2002-08-21 0:28 ` Alan Cox
2002-08-21 0:59 ` Jeff Garzik [this message]
2002-08-21 16:04 ` Martin J. Bligh
2002-08-21 16:45 ` Chris Friesen
2002-08-21 16:56 ` Martin J. Bligh
2002-08-21 17:21 ` Dave Hansen
-- strict thread matches above, loose matches on Subject: below --
2002-08-21 0:59 Feldman, Scott
2002-08-20 23:50 Troy Wilson
2002-08-21 1:00 ` Jeff Garzik
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=3D62E5ED.6020707@mandrakesoft.com \
--to=jgarzik@mandrakesoft.com \
--cc=Martin.Bligh@us.ibm.com \
--cc=alan@lxorguk.ukuu.org.uk \
--cc=linux-kernel@vger.kernel.org \
--cc=scott.feldman@intel.com \
--cc=tcw@prismnet.com \
--cc=tcw@tempest.prismnet.com \
/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