This bug was fixed in the package linux-azure - 4.13.0-1009.12
---------------
linux-azure (4.13.0-1009.12) xenial; urgency=low
* linux-azure: 4.13.0-1009.12 -proposed tracker (LP: #1746726)
* libata: apply MAX_SEC_1024 to all LITEON EP1 series devices (LP: #1743053)
- libata: apply MAX_SEC_1024 to all LITEON EP1 series devices
linux-azure (4.13.0-1008.11) xenial; urgency=low
* linux-azure: 4.13.0-1008.11 -proposed tracker (LP: #1745669)
* [Hyper-V] x86/hyperv: Stop suppressing X86_FEATURE_PCID (LP: #1745247)
- x86/hyperv: Stop suppressing X86_FEATURE_PCID
* [Hyper-V] scsi: storvsc: Spread interrupts when picking a channel for I/O
requests (LP: #1745260)
- SAUCE: scsi: storvsc: Spread interrupts when picking a channel for I/O
requests
* [Hyper-V] scsi: storvsc: Increase cmd_per_lun for higher speed devices
(LP: #1745261)
- SAUCE: scsi: storvsc: Increase cmd_per_lun for higher speed devices
- [Config] CONFIG_SCSI_MQ_DEFAULT=y
-- Marcelo Henrique Cerri <[email protected]> Thu, 01 Feb
2018 11:13:09 -0200
** Changed in: linux-azure (Ubuntu Xenial)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1743053
Title:
libata: apply MAX_SEC_1024 to all LITEON EP1 series devices
Status in linux package in Ubuntu:
Fix Committed
Status in linux-azure package in Ubuntu:
New
Status in linux source package in Xenial:
In Progress
Status in linux-azure source package in Xenial:
Fix Released
Status in linux source package in Artful:
In Progress
Status in linux-azure source package in Artful:
New
Status in linux source package in Bionic:
Fix Committed
Status in linux-azure source package in Bionic:
New
Bug description:
== SRU Justification ==
Some SSD drives made by LiteOn can crash the kernel due to bad drivers. This
is a
regression introduced by commit e0edc8c54646. This regression is fixed by
mainline
commit db5ff909798, which was added to mailine in v4.15-rc9.
This commit has already been added to Bionic via upstream stable udpates.
Xenial
also needs this fix because it recieved the regression introducing commit
e0edc8c54646
via the 4.4.48 stable updates(See bug lp1663657).
== Fix ==
commit db5ff909798ef0099004ad50a0ff5fde92426fd1
Author: Xinyu Lin <[email protected]>
Date: Sun Dec 17 20:13:39 2017 +0800
libata: apply MAX_SEC_1024 to all LITEON EP1 series devices
== Regression Potential ==
Low. This commit was also cc'd to upstream stable to fix a regression, so it
received extra upstream review.
== Test Case ==
A test kernel was built with this patch and tested by the original bug
reporter.
The bug reporter states the test kernel resolved the bug.
== Original Bug Description ==
Some SSD drives made by LiteOn can crash the kernel due to bad drivers. A
fix for this issue has been submitted upstream:
https://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git/commit/?h=for-4.15-fixes
LITEON EP1 has the same timeout issues as CX1 series devices.
Revert max_sectors to the value of 1024.
'e0edc8c54646 ("libata: apply MAX_SEC_1024 to all CX1-JB*-HP
devices")'
Signed-off-by: Xinyu Lin <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
Cc: [email protected]
At a high level the root cause of this problem is that the device only
supports commands with a transfer size up to 512KB. This worked fine
with older versions of Linux but newer versions are attempting
commands with a transfer size of 1280KB which is problematic for this
device (LITEON EP1-KB480)
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