Bug 1421801 – [rt] update driver modifications from upstream PREEMPT_RT patchset

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Bug 1421801 - [rt] update driver modifications from upstream PREEMPT_RT patchset

Summary:	[rt] update driver modifications from upstream PREEMPT_RT patchset

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 7
Classification:	Red Hat
Component:	kernel-rt (Show other bugs)
Sub Component:
Version:	7.4
Hardware:	x86_64 Linux

Priority	medium Severity medium
Target Milestone:	rc
Target Release:	---
Assigned To:	Clark Williams
QA Contact:	Jiri Kastner
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:	1353018 1410158
	Show dependency tree / graph

Reported:	2017-02-13 12:33 EST by Clark Williams
Modified:	2017-08-01 20:24 EDT (History)
CC List:	2 users (show)

See Also:
Fixed In Version:
Doc Type:	If docs needed, set a value
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2017-08-01 15:00:29 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
drivers-random-reduce-preempt-disabled-region.patch (854 bytes, patch) 2017-02-13 12:36 EST, Clark Williams	no flags	Details \| Diff
drivers-tty-fix-omap-lock-crap.patch (1.24 KB, patch) 2017-02-13 12:42 EST, Clark Williams	no flags	Details \| Diff
drivers-tty-pl011-irq-disable-madness.patch (1.39 KB, patch) 2017-02-13 12:43 EST, Clark Williams	no flags	Details \| Diff
rt-serial-warn-fix.patch (1.07 KB, patch) 2017-02-13 12:49 EST, Clark Williams	no flags	Details \| Diff
tty-serial-8250-don-t-take-the-trylock-during-oops.patch (923 bytes, patch) 2017-02-13 12:50 EST, Clark Williams	no flags	Details \| Diff
Avoid the trylock op during oops and optimize the fastpath (1.22 KB, patch) 2017-03-21 12:49 EDT, Luis Claudio R. Goncalves	no flags	Details \| Diff
Show Obsolete (5) Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2017:2077	normal	SHIPPED_LIVE	Important: kernel-rt security, bug fix, and enhancement update	2017-08-01 14:13:37 EDT

Groups: None (edit)

Description Clark Williams 2017-02-13 12:33:38 EST

Review and backport (if needed) driver update patches from 4.8-rt series

Comment 1 Clark Williams 2017-02-13 12:36 EST

Created attachment 1249966 [details]
drivers-random-reduce-preempt-disabled-region.patch

Upstream 4.8.15-rt10 patch to reduce preempt-off time in /dev/random driver

Comment 2 Clark Williams 2017-02-13 12:42 EST

Created attachment 1249967 [details]
drivers-tty-fix-omap-lock-crap.patch

Eval whether omap tty patch will be useful in potential future ARM supported kernels

Comment 3 Clark Williams 2017-02-13 12:43 EST

Created attachment 1249968 [details]
drivers-tty-pl011-irq-disable-madness.patch

Evaluate tty driver mods for upstream RT

Comment 4 Clark Williams 2017-02-13 12:49 EST

Created attachment 1249969 [details]
rt-serial-warn-fix.patch

serial driver warning fix

Comment 5 Clark Williams 2017-02-13 12:50 EST

Created attachment 1249970 [details]
tty-serial-8250-don-t-take-the-trylock-during-oops.patch

Fix to avoid trylock logic during oops

Comment 10 Luis Claudio R. Goncalves 2017-03-21 12:49 EDT

Created attachment 1265180 [details]
Avoid the trylock op during oops and optimize the fastpath

Comment 14 errata-xmlrpc 2017-08-01 15:00:29 EDT

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2017:2077

Comment 15 errata-xmlrpc 2017-08-01 20:24:28 EDT

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2017:2077

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