Date: Fri, 17 Sep 2004 04:36:53 +0800 From: Ariff Abdullah <skywizard@MyBSD.org.my> To: "Kevin Oberman" <oberman@es.net> Cc: current@freebsd.org Subject: Re: ad0: TIMEOUT - READ_DMA retrying (2 retries left) LBA=207594611 Message-ID: <20040917043653.419a8e0e.skywizard@MyBSD.org.my> In-Reply-To: <20040916201342.A127A5D04@ptavv.es.net> References: <!~!UENERkVCMDkAAQACAAAAAAAAAAAAAAAAABgAAAAAAAAA0VcX9IoJqUaXPS8MjT1PdsKAAAAQAAAAC8YFoRpoaUeE8xMlUnz6pQEAAAAA@telia.com> <20040916201342.A127A5D04@ptavv.es.net>
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On Thu, 16 Sep 2004 13:13:42 -0700 "Kevin Oberman" <oberman@es.net> wrote: > > From: "Daniel Eriksson" <daniel_k_eriksson@telia.com> > > Date: Thu, 16 Sep 2004 21:17:45 +0200 > > Sender: owner-freebsd-current@freebsd.org > > > > > > This is a me-too report: > > > > After upgrading a 6-CURRENT kernel and world from > > 2004.09.09.08.00.00 to 2004.09.16.13.00.00, I am now getting these > > messages on a machine that previously worked just fine: > > Thanks! This should greatly simplify my search for the change that > is causing the problem. I can start with 9/9/04 and work forward. I > saw the problem on 9/11/04 in RELENG_5, so I now have a window. I > could shrink it to less than nothing if I was REALLY confident that > nothing was MT5 in less than 3 days, so something the was moved to > RELENG_5 after a very short time is suspect. > > I am currently building a 9/9/04 RELENG_5 kernel and I'll test it > later today (if nobody beats me to it.) One more thing to consider, the default scheduler. I found that those errors occured with SCHED_4BSD (PREEMPTION or NOT), while SCHED_ULE (of course without PREEMPTION, or *else*), nothing such that. Note that this is *my* case, your mileage may vary. -- Ariff Abdullah MyBSD http://www.MyBSD.org.my (IPv6/IPv4) http://staff.MyBSD.org.my (IPv6/IPv4) http://tomoyo.MyBSD.org.my (IPv6/IPv4)
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