Coudl you please remove the following code (or similar)
from the ata_irq_request() function and see whatever the crash still
happens? It could very well we that hwgroup->drive isn't
initialized during boot under seom cirumstances.
if (hwgroup->drive->channel->sharing_irq && ch != hwgroup->drive->channel &&
ch->io_ports[IDE_CONTROL_OFFSET]) {
/* set nIEN for previous channel */
/* FIXME: check this! It appears to act on the current channel! */
if (ch->intrproc)
ch->intrproc(drive);
else
OUT_BYTE((drive)->ctl|2, ch->io_ports[IDE_CONTROL_OFFSET]);
}
-
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