On 22 Oct 2003, Teletch�a St�phane wrote: > Le mer 22/10/2003 � 13:59, Guillaume Cottenceau a �crit : > > Hi, > > > > Be carefull ! > You misread my post : i'm saying UNTIL 9.1, i need to desactivate DMA > for my LG cdrom/burner model HL-DT-ST CD-RW GCE-8240B. > > I didn't test it already with 9.2 ... Yes, but even until 9.1, you didn't fry the drive did you?
DMA is not supported on the CRD-8400B, it is in the kernel nodma blacklist (drive_list_entry drive_blacklist). IIRC during the first 2.4.x kernels it was not in the list, and people got dma errors, but no drive damage at all. I think you can only turn on dma on this drive with hdparm -d1 -X34 /dev/hd? I assume this drive is still in the blacklist, although since klama is down i cannot check 9.2 kernel source at the moment. Also, it might be worthwhile to check if these guys did do a firmware upgrade recently (or in any case what firmware version they use, perhaps a flash can even revive the broken drive). d.
