Subject: Re: Next March 25: Boot failure on powerpc [recursive locking detected]

From: James Bottomley <[email-masked]>
Date: Thu, 26 Mar 2009 08:50:03 -0500

On Thu, 2009-03-26 at 12:04 +0530, Sachin Sant wrote:
> Sachin Sant wrote:
> > Today's next failed to boot on a powerpc box
> > (Power6 blade IBM,7998-61X) with following recursive locking message.
> >
> > =============================================
> > [ INFO: possible recursive locking detected ]
> > 2.6.29-next-20090325 #1
> After bisecting the failure seems to be because of the following
> patch from James ( block: move SCSI timeout check into block )
> 
> http://patchwork.kernel.org/patch/8017/
> 
> If i back out the above mentioned patch, the machine boots fine
> without any problems.

Yes, that patch already got dropped for other reasons:

http://marc.info/?t=123740773700002

I'm going to see if I can redo it in a better way, since moving this
type of timeout checking from scsi to block is a useful generalisation.

James