From: Josh Triplett <josh@joshtriplett.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Akemi Yagi <toracat@elrepo.org>,
Vincent Guittot <vincent.guittot@linaro.org>,
DJ Delorie <dj@redhat.com>, David Sterba <dsterba@suse.cz>,
David Howells <dhowells@redhat.com>,
Eric Biggers <ebiggers@kernel.org>,
Al Viro <viro@zeniv.linux.org.uk>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>
Subject: Re: [PATCH 0/2] pipe: Fixes [ver #2]
Date: Wed, 18 Dec 2019 12:59:02 -0800 [thread overview]
Message-ID: <20191218205731.GA8723@localhost> (raw)
In-Reply-To: <CAHk-=wjnXUUbYikSFba5QqvJoFnO8c_ykXrw9Zz2Lt4SeyeZUQ@mail.gmail.com>
On Mon, Dec 09, 2019 at 10:18:57AM -0800, Linus Torvalds wrote:
> On Mon, Dec 9, 2019 at 9:57 AM Akemi Yagi <toracat@elrepo.org> wrote:
> >
> > In addition to the Fedora make-4.2.1-4.fc27 (1) mentioned by Linus,
> > RHEL 8 make-4.2.1-9.el8 (2) is affected. The patch applied to Fedora
> > make (3) has been confirmed to fix the issue in RHEL's make.
> >
> > Those are the only real-world examples I know of. I have no idea how
> > widespread this thing is...
>
> Looks like opensuse and ubuntu are also on 4.2.1 according to
>
> https://software.opensuse.org/package/make
> https://packages.ubuntu.com/cosmic/make
>
> so apparently the bug is almost universal with the big three sharing
> this buggy version.
Debian and Ubuntu have make 4.2.1-1.2, which includes "[SV 51159] Use a
non-blocking read with pselect to avoid hangs." and various other fixes.
https://metadata.ftp-master.debian.org/changelogs/main/m/make-dfsg/make-dfsg_4.2.1-1.2_changelog
So, both Debian and Ubuntu should be fine with the pipe improvements.
(I'm testing that now.)
Is the version of your non-thundering-herd pipe wakeup patch attached to
https://lore.kernel.org/lkml/CAHk-=wicgTacrHUJmSBbW9MYAdMPdrXzULPNqQ3G7+HkLeNf1Q@mail.gmail.com/
still the best version to test performance with?
next prev parent reply other threads:[~2019-12-18 20:59 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-05 22:30 [PATCH 0/2] pipe: Fixes [ver #2] David Howells
2019-12-05 22:30 ` [PATCH 1/2] pipe: Remove assertion from pipe_poll() " David Howells
2019-12-05 22:30 ` [PATCH 2/2] pipe: Fix missing mask update after pipe_wait() " David Howells
2019-12-05 23:58 ` Linus Torvalds
2019-12-06 13:56 ` [PATCH 0/2] pipe: Fixes " David Sterba
2019-12-06 17:09 ` Linus Torvalds
2019-12-06 17:42 ` Linus Torvalds
2019-12-06 18:59 ` Linus Torvalds
2019-12-07 21:31 ` Akemi Yagi
2019-12-08 16:45 ` Akemi Yagi
2019-12-08 18:04 ` Linus Torvalds
2019-12-09 3:07 ` Linus Torvalds
2019-12-06 20:28 ` Linus Torvalds
2019-12-06 21:04 ` Linus Torvalds
2019-12-07 3:50 ` Linus Torvalds
2019-12-07 4:01 ` Linus Torvalds
2019-12-07 22:47 ` Linus Torvalds
2019-12-09 9:53 ` Vincent Guittot
2019-12-09 17:48 ` Linus Torvalds
2019-12-09 17:57 ` Akemi Yagi
2019-12-09 18:18 ` Linus Torvalds
2019-12-09 18:24 ` Linus Torvalds
2019-12-18 20:59 ` Josh Triplett [this message]
2019-12-10 2:58 ` DJ Delorie
2019-12-10 14:38 ` Vincent Guittot
2019-12-10 17:39 ` Linus Torvalds
2019-12-11 18:09 ` DJ Delorie
2019-12-11 18:59 ` Linus Torvalds
2019-12-12 10:18 ` Konstantin Khlebnikov
2019-12-18 22:51 ` Linus Torvalds
2019-12-19 0:03 ` Josh Triplett
2019-12-19 0:14 ` Josh Triplett
2019-12-19 0:51 ` Linus Torvalds
2019-12-19 0:54 ` Linus Torvalds
2019-12-19 7:56 ` David Howells
2019-12-19 16:35 ` Linus Torvalds
2019-12-11 20:55 ` David Howells
2019-12-12 1:28 ` Linus Torvalds
2019-12-12 7:34 ` David Howells
2019-12-09 14:55 ` David Sterba
2019-12-06 21:26 ` David Howells
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