Bug 914175

Summary:	[Hyper-V]: storvsc: ring buffer failures may result in I/O freeze
Product:	[openSUSE] openSUSE Distribution	Reporter:	Stephen Zarkos <stephen.zarkos>
Component:	Kernel	Assignee:	E-mail List <kernel-maintainers>
Status:	RESOLVED FIXED	QA Contact:	E-mail List <qa-bugs>
Severity:	Major
Priority:	P5 - None	CC:	meissner, tiwai
Version:	13.2
Target Milestone:	---
Hardware:	Other
OS:	openSUSE 13.2
Whiteboard:
Found By:	---	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Stephen Zarkos 2015-01-21 20:55:12 UTC

Hi openSUSE Team,

Please take this fix from the upstream kernel.  This fixes a potential IO freeze issue on Hyper-V and Azure when using multiple disks and RAID devices under heavy load:

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/scsi/storvsc_drv.c?id=e86fb5e8ab95f10ec5f2e9430119d5d35020c951

storvsc: ring buffer failures may result in I/O freeze
When ring buffer returns an error indicating retry, storvsc may not return a proper error code to SCSI when bounce buffer is not used. This has introduced I/O freeze on RAID running atop storvsc devices. This patch fixes it by always returning a proper error code.

Signed-off-by: Long Li <longli@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
cc: stable@vger.kernel.org


This bug is filed for openSUSE 13.2, but please apply this patch to openSUSE 13.1 as well (or I can file a separate bug if needed).

This patch has already been pulled into SLES 11 and SLES 12 branches by our friends at SUSE, but we want to make sure openSUSE has this as well.

Thanks!

Comment 1 Takashi Iwai 2015-02-10 13:58:22 UTC

Now merged to openSUSE-13.1 and openSUSE-13.2 git branches.  Thanks for reporting.

Comment 2 Swamp Workflow Management 2015-04-13 12:14:07 UTC

openSUSE-SU-2015:0713-1: An update that solves 13 vulnerabilities and has 52 fixes is now available.

Category: security (important)
Bug References: 867199,893428,895797,900811,901925,903589,903640,904899,905681,907039,907818,907988,908582,908588,908589,908592,908593,908594,908596,908598,908603,908604,908605,908606,908608,908610,908612,909077,909078,909477,909634,910150,910322,910440,911311,911325,911326,911356,911438,911578,911835,912061,912202,912429,912705,913059,913466,913695,914175,915425,915454,915456,915577,915858,916608,917830,917839,918954,918970,919463,920581,920604,921313,922542,922944
CVE References: CVE-2014-8134,CVE-2014-8160,CVE-2014-8559,CVE-2014-9419,CVE-2014-9420,CVE-2014-9428,CVE-2014-9529,CVE-2014-9584,CVE-2014-9585,CVE-2015-0777,CVE-2015-1421,CVE-2015-1593,CVE-2015-2150
Sources used:
openSUSE 13.2 (src):    bbswitch-0.8-3.6.6, cloop-2.639-14.6.6, crash-7.0.8-6.6, hdjmod-1.28-18.7.6, ipset-6.23-6.6, kernel-docs-3.16.7-13.2, kernel-obs-build-3.16.7-13.7, kernel-obs-qa-3.16.7-13.1, kernel-obs-qa-xen-3.16.7-13.1, kernel-source-3.16.7-13.1, kernel-syms-3.16.7-13.1, pcfclock-0.44-260.6.2, vhba-kmp-20140629-2.6.2, virtualbox-4.3.20-10.2, xen-4.4.1_08-12.2, xtables-addons-2.6-6.2

Comment 3 Swamp Workflow Management 2015-04-13 12:19:49 UTC

openSUSE-SU-2015:0714-1: An update that solves 11 vulnerabilities and has 5 fixes is now available.

Category: security (important)
Bug References: 903640,904899,907988,909078,910150,911325,911326,912202,912654,912705,913059,913695,914175,915322,917839,920901
CVE References: CVE-2014-7822,CVE-2014-8134,CVE-2014-8160,CVE-2014-8173,CVE-2014-8559,CVE-2014-9419,CVE-2014-9420,CVE-2014-9529,CVE-2014-9584,CVE-2014-9585,CVE-2015-1593
Sources used:
openSUSE 13.1 (src):    cloop-2.639-11.19.1, crash-7.0.2-2.19.1, hdjmod-1.28-16.19.1, ipset-6.21.1-2.23.1, iscsitarget-1.4.20.3-13.19.1, kernel-docs-3.11.10-29.2, kernel-source-3.11.10-29.1, kernel-syms-3.11.10-29.1, ndiswrapper-1.58-19.1, pcfclock-0.44-258.19.1, vhba-kmp-20130607-2.20.1, virtualbox-4.2.28-2.28.1, xen-4.3.3_04-37.1, xtables-addons-2.3-2.19.1