Bug 426659 - Unable to play dvds, or use hdparm, with ata_piix
Unable to play dvds, or use hdparm, with ata_piix
Status: CLOSED CURRENTRELEASE
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
8
i386 Linux
low Severity medium
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
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Reported: 2007-12-23 18:51 EST by Nick Burch
Modified: 2008-11-26 05:59 EST (History)
0 users

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Last Closed: 2008-11-26 05:59:26 EST
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Description Nick Burch 2007-12-23 18:51:34 EST
I'm trying to play a video dvd (with a variety of players), but all fail with
I/O errors, such as

Dec 23 23:14:41 grenache kernel: Buffer I/O error on device sr0, logical block 5424
Dec 23 23:14:41 grenache kernel: end_request: I/O error, dev sr0, sector 21696
Dec 23 23:14:41 grenache kernel: end_request: I/O error, dev sr0, sector 21700
Dec 23 23:14:41 grenache kernel: end_request: I/O error, dev sr0, sector 762228
Dec 23 23:14:41 grenache kernel: end_request: I/O error, dev sr0, sector 762228
Dec 23 23:14:41 grenache kernel: end_request: I/O error, dev sr0, sector 762232
Dec 23 23:14:41 grenache kernel: end_request: I/O error, dev sr0, sector 762228
Dec 23 23:14:41 grenache kernel: end_request: I/O error, dev sr0, sector 762232
Dec 23 23:14:41 grenache kernel: end_request: I/O error, dev sr0, sector 762228

I tried to see if it might be a speed related issue, so I had a try with hdparm,
but this didn't work:

[root ~]# hdparm -I /dev/sr0

/dev/sr0:
 HDIO_DRIVE_CMD(identify) failed: Input/output error
[root ~]# hdparm -X udma1 /dev/sr0

/dev/sr0:
 setting xfermode to 65 (UltraDMA mode1)
 HDIO_DRIVE_CMD(setxfermode) failed: Input/output error


I wonder if the kernel needs a newer ata driver which might fix all these errors?

Kernel is 2.6.23.9-85.fc8 #1 SMP (i686). Machine has an ata_piix handled
controller with a sata disk and a pata dvd writer in it (Intel Corporation
82801GBM/GHM (ICH7 Family) SATA IDE Controller). 

Reading and writing from cds works fine, reading and writing data dvds works
fine too, it's just hdparm and video dvds that are giving errors.
Comment 1 Bug Zapper 2008-11-26 04:08:43 EST
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Comment 2 Nick Burch 2008-11-26 05:59:26 EST
Seems to have been fixed in the mean time, so I think it was an old/buggy ata_piix driver. Just re-tested on 2.6.26.6-49.fc8 and dvd videos play just fine.

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