Messages in this thread | | | Date | Thu, 20 Apr 2006 14:24:51 +0200 | From | Emmanuel Fleury <> | Subject | [libata] atapi_enabled problem |
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Hi,
I'm a bit puzzled, I have a Fujistu-Siemens P7120 (see: http://www.labri.fr/perso/fleury/index.php?page=p7120) and the DVD-ROM wasn't detected at all at boot time.
After googling a bit I found this page: http://www.thinkwiki.org/wiki/Problems_with_SATA_and_Linux
So, I tried to compile the kernel with built-in ATAPI and S-ATA support (not as modules but embedded in the kernel) and I tried to pass libata.atapi_enabled=1 at boot time through kernel options. The DVD-drive was recognized at boot but generate tons of errors:
ata1: translated ATA stat/err 0x51/20 to SCSI SK/ASC/ASCQ 0x3/11/04 ata1: no sense translation for error 0x20 ata1: no sense translation for status: 0x51 ata1: translated ATA stat/err 0x51/20 to SCSI SK/ASC/ASCQ 0x3/11/04 sr0: CDROM (ioctl) error, command: <6>Test Unit Ready 00 00 00 00 00 00 sr: Current [descriptor]: sense key: Medium Error Additional sense: Unrecovered read error - auto reallocate failed ata1: no sense translation for error 0x20 ata1: no sense translation for status: 0x51 ata1: translated ATA stat/err 0x51/20 to SCSI SK/ASC/ASCQ 0x3/11/04 ata1: no sense translation for error 0x20 ata1: no sense translation for status: 0x51 ata1: translated ATA stat/err 0x51/20 to SCSI SK/ASC/ASCQ 0x3/11/04 ata1: no sense translation for error 0x20 ata1: no sense translation for status: 0x51 ata1: translated ATA stat/err 0x51/20 to SCSI SK/ASC/ASCQ 0x3/11/04 ata1: no sense translation for error 0x20 ata1: no sense translation for status: 0x51 ata1: translated ATA stat/err 0x51/20 to SCSI SK/ASC/ASCQ 0x3/11/04 ata1: no sense translation for error 0x20 ata1: no sense translation for status: 0x51 ata1: translated ATA stat/err 0x51/20 to SCSI SK/ASC/ASCQ 0x3/11/04 ata1: no sense translation for error 0x20 ata1: no sense translation for status: 0x51 ata1: translated ATA stat/err 0x51/20 to SCSI SK/ASC/ASCQ 0x3/11/04 ata1: no sense translation for error 0x20 ata1: no sense translation for status: 0x51
Then I decided to just modify drivers/scsi/libata-core.c changing the line "atapi_enabled = 0" into "atapi_enabled = 1". Then everything worked as a charm.
I have no explanation yet for this behaviour (passing kernel options should behave the same than changing the code the way I did I suppose).
Does anyone has an idea ?
Regards -- Emmanuel Fleury - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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