[parisc-linux] Hanging with kernels >= 2.4.22

[Matthew Wilcox]

On Sat, Feb 21, 2004 at 12:05:09PM -0500, Carlos O'Donell wrote:
> > Thanks! Changing NCR_700_MAX_TAGS to 1 in drivers/scsi/53c700.h did the
> > trick. Will I now have poor disk performance? If so, might I get away
> > with setting it to something higher, like 2 or 4, maybe?
> 
> I could never run IO stably at anything higher than 1. The drives don't
> seem to handle it properly, the error recovery mechanisms seem less
> than perfect, and the box just hangs.

So, um, maybe we should change the default?  Nobody seems to be
investigating why this happens, so I don't see why our users should
suffer.  I doubt anyone's going to be terribly motivated to track this
problem down for such old machines, so let's just sacrifice a little
performance for stability.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain