linux-kernel - Re: Linux 3.0.92

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Message-ID: <20130820200035.GA2524@roeck-us.net>
Date:	Tue, 20 Aug 2013 13:00:35 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Greg KH <gregkh@...uxfoundation.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Hugh Dickins <hughd@...gle.com>,
	Johannes Berg <johannes@...solutions.net>,
	Borislav Petkov <bp@...en8.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	stable <stable@...r.kernel.org>, lwn@....net
Subject: Re: Linux 3.0.92

On Tue, Aug 20, 2013 at 09:43:43AM -0700, Greg KH wrote:
> On Tue, Aug 20, 2013 at 09:33:30AM -0700, Linus Torvalds wrote:
> > On Tue, Aug 20, 2013 at 8:57 AM, Greg KH <gregkh@...uxfoundation.org> wrote:
> > >
> > > Johannes Berg (1):
> > >       genetlink: fix family dump race
> > 
> > This one turns out to be buggy, see thread called "3.11-rc6 genetlink
> > locking fix offends lockdep".
> 
> Yeah, I messed up in keeping it here, I'll go revert it and push out a
> new 3.0 release.
> 
> > I really think there should be delay before stable picks up stuff from
> > mainline, unless it's something particularly critical and
> > well-discussed.. Maybe a week or so.
> 
> I can do that, it's just hard to tell from my end what is "well
> discussed" all the time.
> 
> > Now it's both in 3.0 and 3.10, so the revert (unless we find a better
> > fix - and the first two patches have already failed) will have to go
> > there too.
> 
> I thought that there was a fix already for this...  Ah, no, that was for
> another reported regression in an older 3.10-stable release, my bad.
> 
> Johannes, what do you want to do here?  Just revert it in Linus's tree
> for now, given the late -rc cycle?
> 
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. 

I want to add some networking to my qemu tests, but it would help to know how
to catch such errors automatically ... that is, if there is a way to do that.

Guenter
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