On Tue, 17 Jul 2007 22:52:25 +0200
Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx> wrote:
> ide-{disk,scsi,tape} don't support REQ_TYPE_BLOCK_PC requests et all
> (so attempts to use SG_IO, CDROM_SEND_PACKET and SCSI_IOCTL_SEND_COMMAND
> will result in requests being failed and error messages in the kernel logs).
In my case it results in a completely tits-up machine. CPU stuck somewhere
spinning with local interrutps disabled.
If you see the log output I sent, I'm suspecting this might be because
this BSG brainfart has exposed underlying bugs in IDE or SCSI.
Note that I saw literally 20,000 lines of output in the bit which I snipped,
so something has gone pretty wild in the handling of these bogus commands.
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