From: Guenter Roeck <linux@roeck-us.net>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Greg KH <gregkh@linuxfoundation.org>,
Hugh Dickins <hughd@google.com>,
Johannes Berg <johannes@sipsolutions.net>,
Borislav Petkov <bp@alien8.de>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
stable <stable@vger.kernel.org>,
lwn@lwn.net
Subject: Re: Linux 3.0.92
Date: Tue, 20 Aug 2013 13:19:50 -0700 [thread overview]
Message-ID: <20130820201950.GB2524@roeck-us.net> (raw)
In-Reply-To: <CA+55aFwVmDVfrL+Xhkk+AZf5iZdWunQaMeRGLJ0yKeBh9brTQQ@mail.gmail.com>
On Tue, Aug 20, 2013 at 01:08:28PM -0700, Linus Torvalds wrote:
> On Tue, Aug 20, 2013 at 1:00 PM, Guenter Roeck <linux@roeck-us.net> wrote:
> >>
> > Does this patch have to be reverted in 3.10 as well ? Linus' e-mail seems to
> > suggest it, but Shuah didn't see the problem there. I ran a quick test with
> > 3.10.8 on an x86 system and did not see a problem either, at least not
> > immediately.
>
> Do you run with lockdep?
>
> The patch causes a _possibility_ of a deadlock, but unless you have
> lockdep enabled, you're almost guaranteed to not actually ever see
> that deadlock in practice.
>
I have CONFIG_LOCKDEP_SUPPORT enabled. Guess I need CONFIG_LOCKUP_DETECTOR as
well. I'll give it a try.
Guenter
next prev parent reply other threads:[~2013-08-20 20:19 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-20 15:57 Greg KH
2013-08-20 15:57 ` Greg KH
2013-08-20 16:33 ` Linus Torvalds
2013-08-20 16:43 ` Greg KH
2013-08-20 19:36 ` Johannes Berg
2013-08-20 20:00 ` Guenter Roeck
2013-08-20 20:07 ` Johannes Berg
2013-08-20 20:08 ` Linus Torvalds
2013-08-20 20:19 ` Guenter Roeck [this message]
2013-08-20 18:52 ` David Miller
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=20130820201950.GB2524@roeck-us.net \
--to=linux@roeck-us.net \
--cc=akpm@linux-foundation.org \
--cc=bp@alien8.de \
--cc=gregkh@linuxfoundation.org \
--cc=hughd@google.com \
--cc=johannes@sipsolutions.net \
--cc=linux-kernel@vger.kernel.org \
--cc=lwn@lwn.net \
--cc=stable@vger.kernel.org \
--cc=torvalds@linux-foundation.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®