Date: Fri, 5 Nov 2004 08:47:33 +0200 From: Nelis Lamprecht <nlamprecht@gmail.com> To: Are Bryne <are.bryne@communique.no> Cc: FreeBSD Questions <questions@freebsd.org> Subject: Re: ad0: WRITE command timeout... Message-ID: <7cbadc870411042247582e9e61@mail.gmail.com> In-Reply-To: <20041104164030.V3017@david.i.communique.no> References: <20041104141000.F3017@david.i.communique.no> <7cbadc8704110405434c734ae2@mail.gmail.com> <20041104164030.V3017@david.i.communique.no>
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On Thu, 4 Nov 2004 16:55:30 +0100 (CET), Are Bryne <are.bryne@communique.no> wrote: > On Thu, 4 Nov 2004, Nelis Lamprecht wrote: > > > On Thu, 4 Nov 2004 14:10:42 +0100 (CET), Are Bryne > > <are.bryne@communique.no> wrote: > [...] > >> After upgrading a computer from FreeBSD 4.8-something to 4.10-RELEASE-p3, > >> I'm getting lots of the following: > >> > >> ad0: WRITE command timeout tag=0 serv=0 - resetting > >> ata0: resetting devices .. done > > The disk in question is a > FUJITSU MPC3043AT/6018 using ATA/ATAPI rev 3 according to atacontrol. > It is master on its controller and uses UDMA33 transfers, and has an idle > PIO4 cd-rom player as a slave. The cdrom drive may be forcing your hard drive to use a much slower UDMA. If I were you I would connect the cd-rom player on your secondary channel or at the very least disconnect it and see if your problem persists and you might even find you get better tranfer rates. Nelis
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