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
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