From: Dave Hansen <haveblue@us.ibm.com>
To: Dave Hansen <haveblue@us.ibm.com>
Cc: Andrew Morton <akpm@digeo.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Benjamin LaHaise <bcrl@redhat.com>
Subject: Re: [PATCH] 4KB stack + irq stack for x86
Date: Fri, 04 Oct 2002 13:12:58 -0700 [thread overview]
Message-ID: <3D9DF64A.4050405@us.ibm.com> (raw)
In-Reply-To: <3D9DF34D.2030405@us.ibm.com>
Dave Hansen wrote:
> I fixed the problems that I was having. thread_info->preempt_count is
> now used to store softirq state, unlike in 2.5.20. Preempt count was
> not preserved once the switch to the interrupt stack occurred. This
> caused two nested softirqs and a deadlock. It is fixed now.
That'll teach me to get excited and send a patch. Sorry about the
"Only in"'s. I also think that there is still a small race window in
the code that I sent. I think that the old preempt_count need to be
placed into the new thread_info's preempt_count _before_ the stack
switch occurs.
--
Dave Hansen
haveblue@us.ibm.com
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/
next prev parent reply other threads:[~2002-10-04 20:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-04 20:00 Dave Hansen
2002-10-04 20:12 ` Dave Hansen [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-09-11 23:00 Dave Hansen
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=3D9DF64A.4050405@us.ibm.com \
--to=haveblue@us.ibm.com \
--cc=akpm@digeo.com \
--cc=bcrl@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.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