linux-kernel - Re: 3.4.4-rt13: btrfs + xfstests 006 = BOOM.. and a bonus rt_mutex deadlock report for absolutely free!

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Date:	Thu, 12 Jul 2012 10:44:08 +0200
From:	Mike Galbraith <efault@....de>
To:	"linux-rt-users@...r.kernel.org" <linux-rt-users@...r.kernel.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: 3.4.4-rt13: btrfs + xfstests 006 = BOOM..  and a bonus rt_mutex
 deadlock report for absolutely free!

On Thu, 2012-07-12 at 07:47 +0200, Mike Galbraith wrote: 
> Greetings,
> 
> I'm chasing btrfs critters in an enterprise 3.0-rt kernel, and just
> checked to see if they're alive in virgin latest/greatest rt kernel.  
> 
> Both are indeed alive and well, ie I didn't break it, nor did the
> zillion patches in enterprise base kernel, so others may have an
> opportunity to meet these critters up close and personal as well.

3.2-rt both explodes and deadlocks as well.  3.0-rt (virgin I mean) does
neither, so with enough re-integrate investment, it might be bisectable.

Rummaging in btrfs, that begins to look down right attractive ;-)

-Mike

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