** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1781436
Title:
Update2 for ocxl driver
Status in The Ubuntu-power-systems project:
In Progress
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Bionic:
Fix Committed
Bug description:
== SRU Justification ==
This commit fixes a regression introduced by mainline commit
5ef3166e8a32. This commit is being requested by IBM as an update to the
ocxl driver.
This fix was also cc'd to upstream stable, but it is still in
linux-next.
== Fix ==
linux-next commit:
d497ebf5fb3a "(ocxl: Fix page fault handler in case of fault on dying
process)"
== Regression Potential ==
Low. Limited to the ocxl driver. This commit fixes a current regression.
It was also cc'd to upstream stable, 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.
== Comment: #0 - Frederic Barrat - 2018-07-12 09:56:29 ==
---Problem Description---
Update to ocxl driver
Contact Information = frederic.bar...@fr.ibm.com
---uname output---
Linux zaiuslp14 4.15.0-24-generic #26-Ubuntu SMP Wed Jun 13 08:43:33 UTC 2018
ppc64le ppc64le ppc64le GNU/Linux
---Additional Hardware Info---
opencapi adapter
Machine Type = any Power9 with opencapi support
---Debugger---
A debugger is not configured
Stack trace output:
no
Oops output:
no
System Dump Info:
The system is not configured to capture a system dump.
*Additional Instructions for frederic.bar...@fr.ibm.com:
-Attach sysctl -a output output to the bug.
== Comment: #1 - Frederic Barrat - 2018-07-12 11:11:39 ==
Could we have the following fix backported to ubuntu 18.04? It's to address a
problem in the relatively new ocxl driver
It's currently in the 'next' tree of the powerpc maintainer:
d497ebf5fb3a026c0817f8c96cde578787f24093 ocxl: Fix page fault handler in case
of fault on dying process
https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id=d497ebf5fb3a026c0817f8c96cde57
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