Re: IDE CD problems in 2.6.13rc6

[Alan Cox <alan@lxorguk.ukuu.org.uk>]

On Sul, 2005-08-14 at 10:30 +1000, Con Kolivas wrote:
> > presumably related, on 2.6.13-rc6. Putting in a cd and trying to read it
> > will cause huge delays and then error out with:
> >
> > ide-cd: cmd 0x28 timed out

(Thats READ_10)

> > hdc: DMA timeout retry
> > hdc: timeout waiting for DMA
> > hdc: status timeout: status=0xd0 { Busy }
> > ide: failed opcode was: unknown
> > hdc: drive not ready for command
> > hdc: ATAPI reset complete

So we asked the drive to do a read and it stayed busy - possibly from
some previous command. In a lot of cases you see the command *after* the
one that broke it. The reset then recovered the drive.


> Even though it apparently works fine I do get these instead though:
> hdc: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
> hdc: drive_cmd: error=0x04 { AbortedCommand }
> ide: failed opcode was: 0xec

Thats somewhere between bizarre and fascinating.