ACK: [SRU][Bionic][PATCH 0/1] block: do not use interruptible wait anywhere

[Seth Forshee]

On Fri, Jun 29, 2018 at 09:39:33AM -0400, Joseph Salisbury wrote:
> BugLink: http://bugs.launchpad.net/bugs/1776887
> 
> == SRU Justification ==
> This upstream bug has been confirmed to affect Ubuntu users[1]. As per the 
> fix commit (below), the most frequent symptom is a crash of Xorg/Xwayland, 
> i.e. killing the entire GUI, when a laptop is woken from system sleep. 
> Frequency of the bug is described as once every few days[2].
> 
> [1] E.g. this user confirms the bug & very specific workaround: 
> https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1760450/comments/11
> [2] E.g. this log of crashes: https://bugzilla.redhat.com/show_bug.cgi?id=1553979#c23
> 
> This is a bug in blk-core.c. It is not specific to any one hardware driver.
> Technically the suspend bug is triggered by the SCSI core - which is used by *all SATA devices*.
> 
> == Fix ==
> 1dc3039bc87a ("block: do not use interruptible wait anywhere")
> 
> == Regression Potential ==
> Low.  This patch has been sent to stable, so it has had additional
> 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.

Acked-by: Seth Forshee <seth.forshee at canonical.com>

Note that this commit is already in unstable as it was merged in
v4.17-rc3.