** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1794156
Title:
Fix potential corruption using SAS controller on HiSilicon arm64
boards
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Bionic:
Fix Committed
Status in linux source package in Cosmic:
Fix Committed
Bug description:
[Impact]
On HiSilicon ARM server systems, there is a potential for corruption when
multiple CPUs are accessing the same controller.
[Test Case]
I don't have a reproducer for the failure, so will be regression tested only
on D05 and D06 platforms.
[Fix]
commit 1c09b663168bb5fd8562234976b76115f2aebe91
Author: Xiaofei Tan <tanxiao...@huawei.com>
Date: Wed Jul 18 22:14:32 2018 +0800
scsi: hisi_sas: add memory barrier in task delivery function
[Regression Risk]
The biggest regression risk I see would be a performance impact. But correct
data is better than fast data :)
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