Re: 1.3.88 stress testing (was: .. and oh, btw ..)

Craig Schlenter (schz@kidd.co.za)
Tue, 16 Apr 1996 07:45:24 +0200 (GMT+0200)


On Mon, 15 Apr 1996, Bernd Schmidt wrote:

[munch]
>me> PS. Don't expect to get any useful work done while this script runs.
>me> I have 16M RAM and used about 20M swap space during this test. Had a
>me> load average of 64 for a while too!
>
> ...since you have 16MB of RAM, it is possible that you have seen a different
> bug. After staring at some kernel source files for a few hours, I suspect a bug
> in the swapping code (I only have 8MB). I'd appreciate if you could re-run the
> test after starting the kernel with a boot parameter of "mem=8192k" (or lower).

Aaaaghhhhh!!!! When I boot with mem=8192k with 1.3.88 and the 1 line
memory patch, I get SIG11's when running the script. Booting with 1.2.13
and running the script is fine. I didn't retry with 16M again but it did
run that test 3 or 4 times and it was OK. It's *really* slow in 8M
compared to 16M. I'll try to do some tests with earlier kernels to see
where things went wrong but it is probably the async. swap stuff from
1.3.5x(?) that is broken. I haven't looked at 1.3.89 yet either ...

Cheers,

--Craig