PATCH: DMA enabled dump for ATA please test

Søren Schmidt sos at
Thu Jan 12 12:19:03 PST 2006

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....


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