Re: [ide-]scsi timeouts while writing cdrom

[Steven Walter <srwalter@yahoo.com>]

What chipset are you using?

On Tue, Sep 18, 2001 at 12:22:49PM -0700, Joseph Cheek wrote:
> cool, i turned off DMA on both cd's and it works now!  i still get 
> timeouts but not enough to crash the system.
> 
> Steven Walter wrote:
> 
> >With what drive chipset is this?
> >
> >In any event, try doing an 'hdparm -d0 /dev/hdd' and see if that fixes
> >it.  That will turn off DMA on the CD-RW, which is probably causing the
> >trouble.  If not, see if turning off DMA on /all/ the drives fixes it.
> >
> >I had a problem similar to this on my system, with an AMD-751 ide
> >controller.  To fix it, all I had to do was turn on CONFIG_EXPERIMENTAL
> >and then "AMD Viper ATA-66 Override (WIP)".  After that, the problem
> >went away.
> >
> >On Fri, Sep 14, 2001 at 09:36:26PM -0700, Joseph Cheek wrote:
> >
> >>hello all,
> >>
> >>my shiny new cdrw hangs the system when i try to burn a cdrom.  i've got a
> >>a completely IDE system.  hda and hdb are hard drives while hdc is a
> >>standard cdrom and hdd is a cdrw.
> >>
> >>while burning cdrecord writes a couple of tracks and then the whole system
> >>freezes [i need to hard power off].  i can blank cdrw's in the drive just
> >>fine, however.  i'm running 2.4.9-ac10 SMP [on a single-proc system] and
> >>all partitions are ext3.  ide-scsi is loaded as a module at boot.
> >>
> >>here's what /var/log/messages shows:
> >>
> >>Sep 14 21:12:45 sanfrancisco kernel: scsi : aborting command due to
> >>timeout : pid 0, scsi0, channel 0, id 1, lun 0 0x00 00 00 00 00 00
> >>Sep 14 21:12:54 sanfrancisco kernel: Device not ready.  Make sure there is
> >>a disc in the drive.
> >>Sep 14 21:12:55 sanfrancisco last message repeated 2 times
> >>Sep 14 21:13:20 sanfrancisco kernel: hdb: timeout waiting for DMA
> >>Sep 14 21:13:20 sanfrancisco kernel: ide_dmaproc: chipset supported
> >>ide_dma_timeout func only: 14
> >>Sep 14 21:13:26 sanfrancisco kernel: scsi : aborting command due to
> >>timeout : pid 0, scsi0, channel 0, id 1, lun 0 0x43 00 00 00 00 00 00 00
> >>0c 00
> >>Sep 14 21:13:37 sanfrancisco kernel: scsi : aborting command due to
> >>timeout : pid 0, scsi0, channel 0, id 0, lun 0 0x2a 00 00 00 05 92 00 00
> >>1f 00
> >>Sep 14 21:13:37 sanfrancisco kernel: hdc: timeout waiting for DMA
> >>Sep 14 21:13:37 sanfrancisco kernel: ide_dmaproc: chipset supported
> >>ide_dma_timeout func only: 14
> >>Sep 14 21:13:37 sanfrancisco kernel: hdd: status timeout: status=0xd8 {
> >>Busy }
> >>Sep 14 21:13:37 sanfrancisco kernel: hdd: DMA disabled
> >>Sep 14 21:13:37 sanfrancisco kernel: hdd: drive not ready for command
> >>Sep 14 21:13:41 sanfrancisco kernel: hdd: ATAPI reset complete
> >>Sep 14 21:13:41 sanfrancisco kernel: hdd: irq timeout: status=0xd0 { Busy
> >>}
> >>Sep 14 21:13:42 sanfrancisco kernel: hdd: ATAPI reset complete
> >>Sep 14 21:13:42 sanfrancisco kernel: hdd: irq timeout: status=0x80 { Busy
> >>}
> >>Sep 14 21:13:42 sanfrancisco kernel: scsi0 channel 0 : resetting for
> >>second half of retries.
> >>Sep 14 21:13:42 sanfrancisco kernel: SCSI bus is being reset for host 0
> >>channel 0.
> >>
> >>any guesses?
> >>
> >>thanks!
> >>
> >>joe
> >>
> >>-
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> >>
> >
> 

-- 
-Steven
In a time of universal deceit, telling the truth is a revolutionary act.
			-- George Orwell
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