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

Hi all,

On Thu, 26 Mar 2009 08:50:03 -0500 James Bottomley [off-list ref] wrote:

On Thu, 2009-03-26 at 12:04 +0530, Sachin Sant wrote:

quoted

Sachin Sant wrote:

quoted

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.

I will revert it from next-20090327 as well as it is still in the
for-next branch of the block tree.

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/