Re: aha152x driver can lockup your machine

Aaron J . Grier (agrier@poofy.goof.com)
Fri, 18 Dec 1998 14:28:55 -0800


On Fri, Dec 11, 1998 at 04:01:39PM +0000, Alan Cox wrote:
> Can you see if you can find exactly which kernel it died on (ie if 89 is
> ok and 93 isnt then try 91, and so on (binary search)). That means we can
> cut the possible causes down to the changes in one patch file.

While we're bashing the aha152x driver, I figured I'd chime in with my
complaints...

The aha152x driver (in 130 at least) has got a horrible tendency to suck
interrupts away from everything else when the machine is under high
load. I was ripping from my CD-ROM (plextor 32x on an ncr53c875) to a
vfat mounted hard drive hanging off my 1522, and it was bad enough that
my machine (a 133Mhz AMD 5x86) was missing _keyboard interrupts._
Repeating the same experiment, but ripping to a hard drive on the
ncr53c875 worked as expected with no noticable problems.

Eventually I'll get rid of the 1522, but I've had it all through my linux
experience, and I'll continue to need it until I can afford a properly
terminated 68<->50 SCSI cable. :)

----
Aaron J. Grier | Staff Programmer, OGI | agrier@cse.ogi.edu
"Windows is the one true OS. MS invented the GUI. MS invented the 32
bit OS. MS is open and standard. MS loves you. We have always been
at war with Oceania." -- Tracy Reed

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/