linux-kernel - Re: linux-next: Tree for Jan 20 -- Kernel panic

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Message-ID: <20150120221309.GA18589@roeck-us.net>
Date:	Tue, 20 Jan 2015 14:13:09 -0800
From:	Guenter Roeck <linux@...ck-us.net>
To:	Sabrina Dubroca <sd@...asysnail.net>
Cc:	Al Viro <viro@...IV.linux.org.uk>, Paul Moore <pmoore@...hat.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, linux-audit@...hat.com,
	Richard Guy Briggs <rgb@...hat.com>
Subject: Re: linux-next: Tree for Jan 20 -- Kernel panic - Unable to mount
 root fs

On Tue, Jan 20, 2015 at 11:08:23PM +0100, Sabrina Dubroca wrote:
> 2015-01-20, 21:58:31 +0000, Al Viro wrote:
> > On Tue, Jan 20, 2015 at 10:38:58PM +0100, Sabrina Dubroca wrote:
> > 
> > > [    1.538646] fn_lookup bsg/0:0:0:0 -2, ffff88001f718000 bsg/0:0:0:0
> > > [    1.539704] fn_lookup bsg 0, ffff88001f718000 bsg
> > > [    1.540559] fn_lookup bsg/0:0:0:0 -2, ffff88001f718000 bsg/0:0:0:0
> > > [    1.552611] fn_lookup bsg/1:0:0:0 -2, ffff88001f718000 bsg/1:0:0:0
> > > [    1.553689] fn_lookup bsg 0, ffff88001f718000 bsg
> > > [    1.554505] fn_lookup bsg/1:0:0:0 -2, ffff88001f718000 bsg/1:0:0:0
> > > [    1.557554] fn_lookup sda 0, ffff88001f718000 sda
> > > [    1.558368] fn_lookup sda 0, ffff88001f718000 sda
> > > [    1.564190] fn_lookup sda1 0, ffff88001f718000 sda1
> > > [    1.565008] fn_lookup sda1 0, ffff88001f718000 sda1
> > > [    1.570751] fn_lookup /dev/ram -2, ffff88001f71a300 /dev/ram
> > > [    1.571786] fn_lookup /dev/root -2, ffff88001f71b480 /dev/root
> > 
> > Nuts...  Is reverting just this (do_path_lookup()) part of commit sufficient
> > to recover the normal behaviour?
> 
> Yes.
> 
Same on microblaze.

Guenter
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