From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jens Axboe Subject: Re: smp dead lock of io_request_lock/queue_lock patch Date: Thu, 15 Jan 2004 18:05:03 +0100 Sender: linux-kernel-owner@vger.kernel.org Message-ID: <20040115170503.GY5507@suse.de> References: <20040112092231.GG29177@suse.de> <1073914073.3114.263.camel@compaq.xsintricity.com> <4006C76B.3090206@tmr.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <4006C76B.3090206@tmr.com> To: Bill Davidsen Cc: Doug Ledford , Arjan Van de Ven , Peter Yao , linux-kernel@vger.kernel.org, linux-scsi mailing list List-Id: linux-scsi@vger.kernel.org On Thu, Jan 15 2004, Bill Davidsen wrote: > Doug Ledford wrote: > >On Mon, 2004-01-12 at 04:22, Jens Axboe wrote: > > > >>On Mon, Jan 12 2004, Arjan van de Ven wrote: > >> > >>>On Mon, Jan 12, 2004 at 10:19:46AM +0100, Jens Axboe wrote: > >>> > >>>>... and still exists in your 2.4.21 based kernel. > >>> > >>>The RHL 2.4.21 kernels don't have the locking patch at all... > >> > >>But RHEL3 does: > >> > >>http://kernelnewbies.org/kernels/rhel3/SOURCES/linux-2.4.21-iorl.patch > >> > >>and the bug is there. > > > > > >But in RHEL3 the bug is fixed already (not in a released kernel, but the > >fix went into our internal kernel some time back and will be in our next > >update kernel). From my internal bk tree for this stuff: > > "not in a released kernel..." Do I read this right? That you have a fix > for a critical bug and it hasn't been pushed to customers yet? How about > security bugs, has the fix you pushed in RH-9.0 been push to EL customers? Calm down, it's a bug fix for a deadlock that _could_ trigger on SMP only in SCSI error recovery. -- Jens Axboe