From: Michael Cree <mcree@orcon.net.nz>
To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Greg KH <gregkh@linuxfoundation.org>,
linux-alpha@vger.kernel.org, Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Matt Turner <mattst88@gmail.com>,
Huang Ying <ying.huang@intel.com>,
linux-kernel@vger.kernel.org,
Paul McKenney <paulmck@linux.vnet.ibm.com>,
David Howells <dhowells@redhat.com>,
Pranith Kumar <bobby.prani@gmail.com>,
stable@vger.kernel.org
Subject: Re: [PATCH] llist: Fix missing lockless_dereference()
Date: Sun, 8 Feb 2015 13:47:29 +1300 [thread overview]
Message-ID: <20150208004729.GA10472@omega> (raw)
In-Reply-To: <1117480383.90061.1423348244225.JavaMail.zimbra@efficios.com>
On Sat, Feb 07, 2015 at 10:30:44PM +0000, Mathieu Desnoyers wrote:
> > On Fri, Feb 06, 2015 at 09:08:21PM -0500, Mathieu Desnoyers wrote:
> > > A lockless_dereference() appears to be missing in llist_del_first().
> > > It should only matter for Alpha in practice.
What could one anticipate to be the symptoms of such a missing
lockless_dereference()?
The Alpha kernel is behaving pretty well provided one builds a machine
specific kernel and UP. When running an SMP kernel some packages
(most notably the java runtime, but there are a few others) occasionally
lock up in a pthread call --- could be a problem in libc rather then the
kernel.
> > Meta-comment, do we really care about Alpha anymore? Is it still
> > consered an "active" arch we support?
There are a few of us still running recent kernels on Alpha. I am
maintaining the unofficial Debian alpha port at debian-ports, and the
Debian popcon shows about 10 installations of Debian Alpha.
Cheers
Michael.
next prev parent reply other threads:[~2015-02-08 0:47 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-07 2:08 [PATCH] llist: Fix missing lockless_dereference() Mathieu Desnoyers
2015-02-07 22:16 ` Greg KH
2015-02-07 22:30 ` Mathieu Desnoyers
2015-02-08 0:18 ` Matt Turner
2015-02-08 0:29 ` Greg KH
2015-02-08 0:47 ` Michael Cree [this message]
2015-02-08 0:59 ` Greg KH
2015-02-08 1:12 ` Michael Cree
2015-02-08 1:20 ` Greg KH
2015-02-08 4:25 ` Mathieu Desnoyers
2015-02-10 1:52 ` Huang Ying
2015-02-10 3:42 ` Mathieu Desnoyers
2015-02-10 9:30 ` Michael Cree
2015-02-08 0:09 ` Paul E. McKenney
2015-02-10 14:03 ` Peter Hurley
2015-02-10 16:38 ` Paul E. McKenney
2015-02-10 17:29 ` Peter Hurley
2015-02-10 18:03 ` Paul E. McKenney
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=20150208004729.GA10472@omega \
--to=mcree@orcon.net.nz \
--cc=bobby.prani@gmail.com \
--cc=dhowells@redhat.com \
--cc=gregkh@linuxfoundation.org \
--cc=ink@jurassic.park.msu.ru \
--cc=linux-alpha@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mathieu.desnoyers@efficios.com \
--cc=mattst88@gmail.com \
--cc=paulmck@linux.vnet.ibm.com \
--cc=rth@twiddle.net \
--cc=stable@vger.kernel.org \
--cc=ying.huang@intel.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.