From: Andrew Morton <andrewm@uow.edu.au>
To: "Hen, Shmulik" <shmulik.hen@intel.com>
Cc: "'LKML'" <linux-kernel@vger.kernel.org>
Subject: Re: spinlock help
Date: Wed, 07 Mar 2001 23:53:34 +1100 [thread overview]
Message-ID: <3AA62F4E.AB901CBB@uow.edu.au> (raw)
In-Reply-To: <07E6E3B8C072D211AC4100A0C9C5758302B27157@hasmsx52.iil.intel.com>
"Hen, Shmulik" wrote:
>
> The kdb trace was accurate, we could actually see the e100 ISR pop from no
> where right in the middle of our ans_notify every time the TX queue would
> fill up. When we commented out the call to spin_*_irqsave(), it worked fine
> under heavy stress for days.
>
> Is it possible it was something wrong with 2.4.0-test10 specifically ?
>
Sorry, no. If spin_lock_irqsave()/spin_unlock_irqrestore()
were accidentally reenabling interrupts then it would be
the biggest, ugliest catastrophe since someone put out a kernel
which forgot to flush dirty inodes to disk :)
Conceivably it was a compiler bug. Were you using egcs-1.1.2/x86?
-
next prev parent reply other threads:[~2001-03-07 12:54 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-07 12:26 spinlock help Hen, Shmulik
2001-03-07 12:53 ` Andrew Morton [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-03-08 11:07 Hen, Shmulik
2001-03-08 11:34 ` Andrew Morton
2001-03-07 16:54 Ofer Fryman
2001-03-07 10:46 Hen, Shmulik
2001-03-07 10:44 Hen, Shmulik
2001-03-07 13:19 ` Alan Cox
2001-03-07 10:31 Ofer Fryman
2001-03-07 9:21 Hen, Shmulik
2001-03-07 10:26 ` Manoj Sontakke
2001-03-06 14:05 Manoj Sontakke
2001-03-06 23:53 ` Nigel Gamble
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=3AA62F4E.AB901CBB@uow.edu.au \
--to=andrewm@uow.edu.au \
--cc=linux-kernel@vger.kernel.org \
--cc=shmulik.hen@intel.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