From: Joe Korty <joe.korty@concurrent-rt.com>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Thomas Gleixner <tglx@linutronix.de>,
LKML <linux-kernel@vger.kernel.org>,
linux-rt-users <linux-rt-users@vger.kernel.org>,
Steven Rostedt <rostedt@goodmis.org>
Subject: Re: [ANNOUNCE] v5.4.26-rt17
Date: Mon, 30 Mar 2020 11:41:10 -0400 [thread overview]
Message-ID: <20200330154110.GA2975@zipoli.concurrent-rt.com> (raw)
In-Reply-To: <20200320192830.zeci3rhh5bgbareg@linutronix.de>
On Fri, Mar 20, 2020 at 08:28:30PM +0100, Sebastian Andrzej Siewior wrote:
> Dear RT folks!
>
> I'm pleased to announce the v5.4.26-rt17 patch set.
>
> Changes since v5.4.26-rt16:
>
> - Revert the "cross CPU pagevec" access with a static key switch. The
> old behaviour has been almost fully restored: There is no cross CPU
> access of the local_lock. Instead the workqueue is scheduled on
> remote CPU like in the !RT case.
[try #2]
This reversion fixes the oops I was getting when CONFIG_PREEMPT_RT=n,
CONFIG_PREEMPT=y, with nohz_full operational, when the system is under
heavy memory pressure (mem=4G on the kernel command line, 8 cpu setup,
make -j11 kernel build).
prev parent reply other threads:[~2020-03-30 15:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-20 19:28 [ANNOUNCE] v5.4.26-rt17 Sebastian Andrzej Siewior
2020-03-30 15:41 ` Joe Korty [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200330154110.GA2975@zipoli.concurrent-rt.com \
--to=joe.korty@concurrent-rt.com \
--cc=bigeasy@linutronix.de \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-rt-users@vger.kernel.org \
--cc=rostedt@goodmis.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).