Re: Hard lockup with 2.4.18-pre9 + preempt + lock break + O1k[23] + rmap

Zwane Mwaikambo
2002-02-16T09:39:14Z

On Fri, 15 Feb 2002, Mike Fedyk wrote:

> I don't use USB, and I have had several machines lock up hard while doing
> medium to heavy IO. I've had this happen with pre9-mjc2 and another patch
> that just contained pre9-preempt-schedo1
> (nyu.dyn.dhs.org:8080/patches/2.4.18-pre9-to-rmap12e-schedO1-rml.patch.bz2)
>
> I'm running 2.4.18-pre9-ac3 now to see if I can reproduce without prempt and
> O(1).

I run the same configuration here but UP, with quite a bit of I/O, box
NFS exports a large build directory to 2 other boxes plus usually has 2
builds going locally as well as being used as a storage area for
creating isos/burning cds. VM load is medium for a 512mem/512swap box,
~140 processes and ~150megs into swap.

Cheers,
Zwane Mwaikambo