linux-kernel - Re: Linux 3.0.92

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Date:	Tue, 20 Aug 2013 22:07:53 +0200
From:	Johannes Berg <johannes@...solutions.net>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	Greg KH <gregkh@...uxfoundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Hugh Dickins <hughd@...gle.com>,
	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, 2013-08-20 at 13:00 -0700, Guenter Roeck 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. 

Yes, it does. I'm not sure how hard it is to actually run into the
deadlock, though Sergey Senozhatsky said he had seen it.

The patch I just posted with the RCU protection actually pretty much
reverts my other patch as part of it.

johannes

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