Bug 35422

Summary:	[BISECTED] 2.6.39rc: kobject-related reboot after RAID array initialization(?) post-QUEUE_FLAG_REENTER-removal
Product:	IO/Storage	Reporter:	Maciej Rutecki (maciej.rutecki)
Component:	MD	Assignee:	io_md
Status:	CLOSED CODE_FIX
Severity:	normal	CC:	florian, maciej.rutecki, nix, rjw
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:		Subsystem:
Regression:	Yes	Bisected commit-id:
Bug Depends on:
Bug Blocks:	32012

Description Maciej Rutecki 2011-05-19 17:34:17 UTC

Subject    : [BISECTED] 2.6.39rc: kobject-related reboot after RAID array initialization(?) post-QUEUE_FLAG_REENTER-removal
Submitter  : Nix <nix@esperi.org.uk>
Date       : 2011-05-15 22:05
Message-ID : 8762pboc0j.fsf@spindle.srvr.nix
References : http://marc.info/?l=linux-kernel&m=130549836609128&w=2

This entry is being used for tracking a regression from 2.6.38. Please don't
close it until the problem is fixed in the mainline.

Caused by:

commit c21e6beba8835d09bb80e34961430b13e60381c5
Author: Jens Axboe <jaxboe@fusionio.com>
Date:   Tue Apr 19 13:32:46 2011 +0200

    block: get rid of QUEUE_FLAG_REENTER

    Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

First-Bad-Commit : c21e6beba8835d09bb80e34961430b13e60381c5

Comment 1 Florian Mickler 2011-06-07 07:56:19 UTC

Patch: http://marc.info/?l=linux-kernel&m=130554213509304&w=2

commit 9937a5e2f32892db0dbeefc2b3bc74b3ae3ea9c7
Author: Jens Axboe <jaxboe@fusionio.com>
Date:   Tue May 17 11:04:44 2011 +0200

    scsi: remove performance regression due to async queue run