Subject: Re: Soft Errors / DMA errors on IBM 18G ATAPI disk
To: jiho <email@example.com>
From: Manuel Bouyer <firstname.lastname@example.org>
Date: 10/20/1999 11:04:34
On Tue, Oct 19, 1999 at 12:34:10PM +0000, jiho wrote:
> Hmm, no, it doesn't sound very plausible, if it's per-command.
> If it was "global", I'd be more suspicious that some drives might think they
> don't need to be asked, in violation of the (draft? You mean it isn't even a)
> standard (yet?).
It is but the final ducument is not available freely. And disks ususally gets
on the market way before the final document is done so I believe
intermediate drafts are good aproximation :)
> > I'm pretty sure now that there is a problem with interrupts in the IDE driver
> > (or maybe a more general problem which only affects the IDE driver).
> > It seems that sometimes the IDE driver gets an IRQ even when we're still at
> > splbio() ...
> Now that's _really_ interesting.
> If it's a general problem, I'm not so sure it only affects the IDE driver.
> I was already wondering if there isn't something screwy going on with the PS/2
> mouse driver and its interrupts. It seems especially prone to trouble while
> I'm downloading data via my dial-up ISP, through my internal modem's serial
> port -- in other words, when the serial port driver and the PS/2 mouse driver
> are both getting interrupts. The net result seems to be bogus mouse events,
> which can cause various problems for clients who don't/can't filter them out
> properly. I don't know if/how it affects/involves the serial port driver.
Hum, I didn't notice this on my hardware. What hardware do you have ?
Especially what motherboard ?
Manuel Bouyer, LIP6, Universite Paris VI. Manuel.Bouyer@lip6.fr