| 2017-04-13 21:09:10 |
bugproxy |
bug |
|
|
added bug |
| 2017-04-13 21:09:12 |
bugproxy |
tags |
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architecture-ppc64le bugnameltc-153445 severity-critical targetmilestone-inin16043 |
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| 2017-04-13 21:09:14 |
bugproxy |
ubuntu: assignee |
|
Taco Screen team (taco-screen-team) |
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| 2017-04-13 21:09:19 |
bugproxy |
affects |
ubuntu |
linux (Ubuntu) |
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| 2017-04-17 17:40:27 |
Joseph Salisbury |
tags |
architecture-ppc64le bugnameltc-153445 severity-critical targetmilestone-inin16043 |
architecture-ppc64le bugnameltc-153445 kernel-da-key severity-critical targetmilestone-inin16043 |
|
| 2017-04-21 12:44:12 |
Leann Ogasawara |
linux (Ubuntu): importance |
Undecided |
High |
|
| 2017-04-21 12:44:12 |
Leann Ogasawara |
linux (Ubuntu): status |
New |
Triaged |
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| 2017-04-21 12:44:12 |
Leann Ogasawara |
linux (Ubuntu): assignee |
Taco Screen team (taco-screen-team) |
Canonical Kernel Team (canonical-kernel-team) |
|
| 2017-08-18 16:29:09 |
Mauricio Faria de Oliveira |
description |
---Problem Description---
IPR driver causes multipath to fail paths/stuck IO on Medium Errors
This problem is resolved with this upstream accepted patch, scheduled for 4.11.
The detailed problem description and resolution are described in the commit message.
> scsi: ipr: do not set DID_PASSTHROUGH on CHECK CONDITION
> http://git.kernel.org/?p=linux/kernel/git/jejb/scsi.git;a=commit;h=785a470496d8e0a32e3d39f376984eb2c98ca5b3
Please apply to 17.04 and 16.04.
The business justification for the SRU is:
Clients with a dual-controller multipathed IPR configuration that eventually runs into failing disk/sectors, will experience an I/O hang once the drive reports a Medium Error, which can hang an application or even the root filesystem (whatever is doing I/O to the failing drive), potentially hanging the system.
Thanks.
---Additional Hardware Info---
Dual (IPR) controller setup, multipath enabled
---Steps to Reproduce---
1) Use a disk with bad sectors (or force such condition, via internal/special tools)
2) Multipath that disk
3) Run IO to the multipath device on the bad sectors
4) Both paths will be failed, and IO is stuck due to queue_if_no_path (enabled by default for IPR)
The detailed problem description and resolution are described in the commit message. |
SRU Justification:
Impact: stuck I/O to multipath disks with medium errors (on IPR controllers)
Fix: upstream commit for IPR driver to allow SCSI layer to handle the error
Testcase: perform I/O to a failing disk which is multipathed (on IPR
controller), which returns SCSI Medium Errors (without the fix,
the I/O gets stuck).
the commit message describes a test-case w/ sg_dd.
---Problem Description---
IPR driver causes multipath to fail paths/stuck IO on Medium Errors
This problem is resolved with this upstream accepted patch, scheduled for 4.11.
The detailed problem description and resolution are described in the commit message.
> scsi: ipr: do not set DID_PASSTHROUGH on CHECK CONDITION
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=785a470496d8e0a32e3d39f376984eb2c98ca5b3
Please apply to 17.04 (target 16.04.3 HWE kernel) and 16.04 (GA kernel).
Patch already applied to 17.10.
The business justification for the SRU is:
Clients with a dual-controller multipathed IPR configuration that eventually runs into failing disk/sectors, will experience an I/O hang once the drive reports a Medium Error, which can hang an application or even the root filesystem (whatever is doing I/O to the failing drive), potentially hanging the system.
Thanks.
---Additional Hardware Info---
Dual (IPR) controller setup, multipath enabled
---Steps to Reproduce---
1) Use a disk with bad sectors (or force such condition, via internal/special tools)
2) Multipath that disk
3) Run IO to the multipath device on the bad sectors
4) Both paths will be failed, and IO is stuck due to queue_if_no_path (enabled by default for IPR)
The detailed problem description and resolution are described in the commit message. |
|
| 2017-08-21 10:10:38 |
Stefan Bader |
nominated for series |
|
Ubuntu Zesty |
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| 2017-08-21 10:10:38 |
Stefan Bader |
bug task added |
|
linux (Ubuntu Zesty) |
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| 2017-08-21 10:10:38 |
Stefan Bader |
nominated for series |
|
Ubuntu Xenial |
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| 2017-08-21 10:10:38 |
Stefan Bader |
bug task added |
|
linux (Ubuntu Xenial) |
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| 2017-08-22 13:56:16 |
Joseph Salisbury |
linux (Ubuntu Xenial): status |
New |
Triaged |
|
| 2017-08-22 13:56:19 |
Joseph Salisbury |
linux (Ubuntu Zesty): status |
New |
Triaged |
|
| 2017-08-22 13:56:22 |
Joseph Salisbury |
linux (Ubuntu Xenial): importance |
Undecided |
High |
|
| 2017-08-22 13:56:24 |
Joseph Salisbury |
linux (Ubuntu Zesty): importance |
Undecided |
High |
|
| 2017-08-24 12:09:17 |
bugproxy |
tags |
architecture-ppc64le bugnameltc-153445 kernel-da-key severity-critical targetmilestone-inin16043 |
architecture-ppc64le bugnameltc-153445 kernel-da-key severity-high targetmilestone-inin16043 |
|
| 2017-08-28 13:23:13 |
Thadeu Lima de Souza Cascardo |
linux (Ubuntu Zesty): status |
Triaged |
Fix Committed |
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| 2017-08-28 15:12:14 |
Kleber Sacilotto de Souza |
linux (Ubuntu Xenial): status |
Triaged |
Fix Committed |
|
| 2017-09-01 08:26:16 |
Kleber Sacilotto de Souza |
tags |
architecture-ppc64le bugnameltc-153445 kernel-da-key severity-high targetmilestone-inin16043 |
architecture-ppc64le bugnameltc-153445 kernel-da-key severity-high targetmilestone-inin16043 verification-needed-zesty |
|
| 2017-09-01 08:27:58 |
Kleber Sacilotto de Souza |
tags |
architecture-ppc64le bugnameltc-153445 kernel-da-key severity-high targetmilestone-inin16043 verification-needed-zesty |
architecture-ppc64le bugnameltc-153445 kernel-da-key severity-high targetmilestone-inin16043 verification-needed-xenial verification-needed-zesty |
|
| 2017-09-01 23:59:19 |
bugproxy |
tags |
architecture-ppc64le bugnameltc-153445 kernel-da-key severity-high targetmilestone-inin16043 verification-needed-xenial verification-needed-zesty |
architecture-ppc64le bugnameltc-153445 kernel-da-key severity-high targetmilestone-inin16043 verification-done-zesty |
|
| 2017-09-02 00:39:20 |
bugproxy |
tags |
architecture-ppc64le bugnameltc-153445 kernel-da-key severity-high targetmilestone-inin16043 verification-done-zesty |
architecture-ppc64le bugnameltc-153445 kernel-da-key severity-high targetmilestone-inin16043 verification-done-xenial verification-done-zesty |
|
| 2017-09-18 09:21:44 |
Launchpad Janitor |
linux (Ubuntu Zesty): status |
Fix Committed |
Fix Released |
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| 2017-09-18 09:21:44 |
Launchpad Janitor |
cve linked |
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2017-1000251 |
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| 2017-09-18 09:21:44 |
Launchpad Janitor |
cve linked |
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2017-7541 |
|
| 2017-09-18 09:21:45 |
Launchpad Janitor |
linux (Ubuntu Zesty): status |
Fix Committed |
Fix Released |
|
| 2017-09-18 10:11:08 |
Launchpad Janitor |
linux (Ubuntu Xenial): status |
Fix Committed |
Fix Released |
|
