Kernel panic while reading from at a cdrom

Christoph Kukulies kuku at kukulies.org
Mon May 11 13:25:35 UTC 2020


I’m seeing these error messages in syslog:

(cd0:ata1:0:1:0): READ(10). CDB: 28 00 00 05 14 96 00 00 01 00 
(cd0:ata1:0:1:0): CAM status: SCSI Status Error
(cd0:ata1:0:1:0): SCSI status: Check Condition
(cd0:ata1:0:1:0): SCSI sense: ILLEGAL REQUEST asc:64,0 (Illegal mode for this track)
(cd0:ata1:0:1:0): Error 6, Unretryable error
(cd0:ata1:0:1:0): cddone: got error 0x6 back
(cd0:ata1:0:1:0): READ(10). CDB: 28 00 00 05 14 97 00 00 01 00 
(cd0:ata1:0:1:0): CAM status: SCSI Status Error
(cd0:ata1:0:1:0): SCSI status: Check Condition
(cd0:ata1:0:1:0): SCSI sense: ILLEGAL REQUEST asc:64,0 (Illegal mode for this track)
(cd0:ata1:0:1:0): Error 6, Unretryable error
(cd0:ata1:0:1:0): cddone: got error 0x6 back


I was dd’ing a whole CD to a file while the panic happened. This happened twice after another.
The MB is an ASRock939A790GMH. Possibly the CDROM drive , a CREATIVE 52x is the culprit. DMA is „Auto“ in the BIOS and the device can do DMA, not Ultra DMA. 

Before I kick out the drive and get me a sata DVD drive, would it help analyzing something. kernel core dump?

—
Christoph



More information about the freebsd-questions mailing list