* domenica 13 luglio 2003, alle 19:51, Andrey Borzenkov scrive:
>> I get the following errors and an unkillable process when trying to play
>> DVDs, using the latest 2.5.75:
>> Jul 13 00:15:03 joehill kernel: hdc: cdrom_decode_status: status=0x51 {
> DriveReady SeekComplete Error }
>> Jul 13 00:15:03 joehill kernel: hdc: cdrom_decode_status:
> error=0x30LastFailedSense 0x03
> this is ide-cd problem. drivers/ide/ide-cd:cdrom_decode_status():
> } else if ((err & ~ABRT_ERR) != 0) {
> /* Go to the default handler
> for other errors. */
> DRIVER(drive)->error(drive,
> "cdrom_decode_status",stat);
> return 1;
> } else if (sense_key == MEDIUM_ERROR) {
> /* No point in re-trying a zillion times on a bad
> * sector... If we got here the error is not
> correctabl
> e */
> ide_dump_status (drive, "media error (bad sector)",
> stat
> );
> cdrom_end_request(drive, 0);
> The above sense key is exactly MEDIUM_ERROR but driver never has chance to
> stop "retring zillion times" simply because it immediately falls down into
> driver->error again. So "innocent" media error results half an hour retries
> and disabled DMA.
Yesterday I've found a similar problem using 2.5.75. Trying to read a DVD
with a ASUS CD-S500/A the machine gives some errors in log then freezes.
>From log:
kernel: hdb: timeout waiting for DMA
kernel: hdb: timeout waiting for DMA
kernel: hdb: (__ide_dma_test_irq) called while not waiting
kernel: hdb: status timeout: status=0xd0 { Busy }
kernel: hdb: status timeout: error=0x00
kernel: hdb: drive not ready for command
kernel: hdb: ATAPI reset complete
kernel: hdb: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
kernel: hdb: cdrom_decode_status: error=0x30LastFailedSense 0x03
I've swapped the two conditions and after 5 "Bad Sector" the machine runs normally.
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This archive was generated by hypermail 2b29 : Tue Jul 15 2003 - 22:00:57 EST