Messages in this thread | | | Date | Sat, 10 Nov 2007 13:14:41 -0600 | From | Robert Hancock <> | Subject | Re: x86_64 SATA DVD drive + libata trouble |
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Bernd Strieder wrote: > Hello, > > please CC me, I'm not subscribed. > > If any kernel developer is interested in more specific information > please mail me, I can build kernels, I can apply patches, though > have not done it regularly. > > I'd like to get the DVD drive working somehow. I have googled a lot > and did not find any more ideas what to do. Some good keywords to > find a solution would suffice at that end. > > Rough problem description: > > I have a Tyan mainboard with NVIDIA chipset CK804. The only > SATA/IDE device is a SATA DVD combo, the harddisks are on a RAID > controller from 3ware. The harddisks are fine. > > The openSuSE 10.3 boot dvds fail after booting from the BIOS, the > installation kernel cannot use the DVD drive. That kernel uses > libata and sata_nv pata_amd as drivers. The drive is recognized > but it cannot be used. This is the situation probably during > install from DVD and now in the running system after a network > install it persists. > > Reading from the dvd device /dev/sr0 with dd stops after at most > 119kb of rubbish read. Mounting fails with superblock not found. > When trying to remove the pata_amd module I get an Oops. I tried to > remove the modules to have a chance to reload them with other > options (atapi_enable), but that did not help, even after > rebooting. > > A vanilla 2.6.23.1 kernel behaves even less friendly, the dd > on /dev/sr0 causes a hard reset. > > So there are clearly some problems with libata in this system. > > I have failed switching away from libata getting the drive to be > recognized at all.
There is a known problem with ATAPI devices on CK804 chipsets which have memory above the 4GB mark, being debugged here:
https://bugzilla.redhat.com/show_bug.cgi?id=351451
If you are running into that one you can workaround it for now by passing the adma=0 parameter to the sata_nv module (not sure how this would be done on Suse's setup) or pass sata_nv.adma=0 on the kernel command line if sata_nv is built into the kernel. If that does help, I could ask you to test patches :-)
-- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from hancockr@nospamshaw.ca Home Page: http://www.roberthancock.com/
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