2.5.6: ide driver broken in PIO mode

Roman Zippel (zippel@linux-m68k.org)
Wed, 13 Mar 2002 14:05:23 +0100 (CET)


Hi,

I first noticed the problem on my Amiga, but I can reproduce it on an ia32
machine, when I turn off dma with hdparm. After a while the driver stops
working with:

hda: lost interrupt

After rebooting e2fsck has some serious damage to repair, so the driver
even writes garbage back to disk before stopping.
I can reproduce the problem pretty easily (some disk activity like from a
kernel compile is already enough) and it happens on two completely
different systems, so it should be reproducable on other systems too.

bye, Roman

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