From: Daniel Walker <dwalker@mvista.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Linus Torvalds <torvalds@osdl.org>, Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org,
Arjan van de Ven <arjan@infradead.org>,
"Paul E. McKenney" <paulmck@us.ibm.com>
Subject: Re: [patch, lock validator] fix uidhash_lock <-> RCU deadlock
Date: Wed, 25 Jan 2006 08:59:37 -0800 [thread overview]
Message-ID: <1138208378.3992.7.camel@localhost.localdomain> (raw)
In-Reply-To: <20060125142307.GA5427@elte.hu>
On Wed, 2006-01-25 at 15:23 +0100, Ingo Molnar wrote:
> RCU task-struct freeing can call free_uid(), which is taking
> uidhash_lock - while other users of uidhash_lock are softirq-unsafe.
>
> This bug was found by the lock validator i'm working on:
What is it doing exactly ?
Daniel
next prev parent reply other threads:[~2006-01-25 16:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-25 14:23 [patch, lock validator] fix uidhash_lock <-> RCU deadlock Ingo Molnar
2006-01-25 16:59 ` Daniel Walker [this message]
2006-01-29 13:55 ` Ingo Molnar
2006-01-26 11:13 ` Paul E. McKenney
2006-01-28 0:22 ` Linus Torvalds
2006-01-28 2:40 ` Paul E. McKenney
2006-01-30 4:14 ` Paul E. McKenney
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=1138208378.3992.7.camel@localhost.localdomain \
--to=dwalker@mvista.com \
--cc=akpm@osdl.org \
--cc=arjan@infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=paulmck@us.ibm.com \
--cc=torvalds@osdl.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.