Bug 13657

Summary:	Linux-2.6.31-rc1 Fails To Recognize Some USB Disks
Product:	IO/Storage	Reporter:	Rafael J. Wysocki (rjw)
Component:	Other	Assignee:	io_other
Status:	CLOSED CODE_FIX
Severity:	normal	CC:	martin.petersen
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.31-rc1	Subsystem:
Regression:	Yes	Bisected commit-id:
Bug Depends on:
Bug Blocks:	13615

Description Rafael J. Wysocki 2009-06-28 22:30:54 UTC

Subject    : Linux-2.6.31-rc1 Fails To Recognize Some USB Disks
Submitter  : Tarkan Erimer <tarkan.erimer@turknet.net.tr>
Date       : 2009-06-26 10:03
References : http://lkml.org/lkml/2009/6/26/34

This entry is being used for tracking a regression from 2.6.29.  Please don't
close it until the problem is fixed in the mainline.

Comment 1 Rafael J. Wysocki 2009-07-26 21:52:53 UTC

Caused by:

commit 3821d768912a47ddbd6cab52943a8284df88003c
Author: Martin K. Petersen <martin.petersen@oracle.com>
Date:   Sat May 23 11:43:38 2009 -0400

     sd: Detect non-rotational devices

     Detect non-rotational devices and set the queue flag accordingly.

     Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
     Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

First-Bad-Commit : 3821d768912a47ddbd6cab52943a8284df88003c
Handled-By : Martin K. Petersen <martin.petersen@oracle.com>

Comment 2 Martin K. Petersen 2009-08-03 01:45:50 UTC

Workaround is queued in scsi-rc-fixes as ffd4bc2a984fab40ed969163efdff321490e8032.

Comment 3 Rafael J. Wysocki 2009-08-03 14:45:50 UTC

Patch : http://git.kernel.org/?p=linux/kernel/git/jejb/scsi-rc-fixes-2.6.git;a=commit;h=ffd4bc2a984fab40ed969163efdff321490e8032

Comment 4 Rafael J. Wysocki 2009-08-09 23:04:04 UTC

Fixed by commit ffd4bc2a984fab40ed969163efdff321490e8032 .