Re: PATCH: DMA enabled dump for ATA please test

From: Christian Brueffer <chris_at_unixpages.org>
Date: Thu, 12 Jan 2006 22:49:43 +0100
On Thu, Jan 12, 2006 at 10:37:45PM +0100, Søren Schmidt wrote:
> Christian Brueffer wrote:
> >On Thu, Jan 12, 2006 at 09:18:56PM +0100, Søren Schmidt wrote:
> >
> >>Christian Brueffer wrote:
> >>
> >>
> >>>I have tested this on my Thinkpad T41p with the following hardware:
> >>>
> >>>atapci0: <Intel ICH4 UDMA100 controller> port 
> >>>0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x1860-0x186f at device 31.1 on pci0
> >>>ata0: <ATA channel 0> on atapci0
> >>>ata1: <ATA channel 1> on atapci0
> >>>[...]
> >>>ad0: 57231MB <HTS726060M9AT00 MH4OA6DA> at ata0-master UDMA100
> >>>acd0: CDRW <UJDA755yDVD/CDRW/1.72> at ata1-master UDMA33
> >>>
> >>>With the patched kernel it stops after printing the acd0 line and spews
> >>>out the following:
> >>>
> >>>acd0: req=0xc350f8d0 TEST_UNIT_READY semaphore timeout  !!  DANGER Will 
> >>>Robinson  !!
> >>>
> >>>Do you need boot -v output? (I'll have to hook up a serial or firewire
> >>>console, that's why I haven't provided it already).
> >>
> >>Would be nice actually, the stinkpads might need special treatment yet 
> >>again, oh well, I'll dig out my R30 and get it updated as well to test...
> >>Are you sure it worked with a new stock current kernel before the patch 
> >>went in ? I've seen a few of these errors lately but that was before ATA 
> >>was even touched, so something else might have changed as well....
> >>
> >
> >
> >Positive, built the patched kernel from the same sources as the working
> >kernel I'm currently using.
> >
> >Verbose bootlog: http://people.freebsd.org/~brueffer/dmesg.verbose
> 
> Hmm, does it help if you turn off DMA to the CD/DVD device ?
> My R30 seems to work fine, but its CDROM drive doesn't do DMA...
> 

Indeed, disabling DMA for the DVD drive lets my box boot.

- Christian

-- 
Christian Brueffer	chris_at_unixpages.org	brueffer_at_FreeBSD.org
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Received on Thu Jan 12 2006 - 20:49:47 UTC

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