RE: ide drive w/dma enabled causing system crash

BROWN Nick (Nick.BROWN@coe.int)
Sun, 9 May 1999 22:22:58 +0200


I got a similar problem just now on a Western Digital 3.2 GB disk. It
occurred while testing Andre Hedrick's patches, but I was able to reproduce
it on a vanilla 2.2.7 system. The command line was

hdparm -c 3 -t -d1 -X34 /dev/hda

After a few seconds I got:
hda: timeout waiting for DMA

and then nothing. Every key sequence was dead. After two nostalgic minutes
contemplating how standard this was under MS-DOS, I reached for the reset
switch.

hdparm is 3.3. I think there are newer versions, but I take what Debian
gives me. Without the "-X34" it works fine, but I'm new to this, so I was
following the suggestions in the man pages. In any case, I guess the crash
is not what's meant to happen.

As with Vasilios, I can test any solutions on my crash-and-burn system.
Only limit is how much time my wife will let me spend in front of the PC
:-(.

Nick Brown, Strasbourg, France (Nick(dot)Brown(at)coe(dot)int)

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