Messages in this thread | | | Date | Fri, 15 Feb 2002 15:22:21 -0800 | From | Mike Fedyk <> | Subject | Re: Hard lockup with 2.4.18-pre9 + preempt + lock break + O1k[23] + rmap |
| |
On Fri, Feb 15, 2002 at 05:00:10PM -0500, Robert Love wrote: > On Fri, 2002-02-15 at 15:18, 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) > > The -mjc and similar patches make debugging a bit, uh, hard ;) >
Yep, I understand. When I was patching in rmap12f I had to manually merge the little bit into mm/bootmem.c and the offset was several hundred lines. Then I realized just how much WLI's bootmem patch changes.
> > I'm running 2.4.18-pre9-ac3 now to see if I can reproduce without prempt and > > O(1). > > If you can't reproduce it, I'd like to see if you can reproduce it > _only_ with preempt. Also, if it happens on stock pre9 (no -ac) would > be of interest, since that doesn't have Andre's IDE patch. >
Actually, I'm going to recompile -mjc2 without lock breaking to see if that helps. Then try without prempt altogether. If either of those two fix the problem, I'll see if I can reproduce against the latest kernel from marcello and your latest patch and merge myself. Heh, I want to keep testing -mjc. There are so many nice things in there. ;)
> > I have someone else from IRC that has the same issue with prempt+O(1) > > against vanilla 2.4.17. He should be sending you a bug report soon. > > Now this would be of interest, thanks. >
I asked him to cc me so that I may be able to help too...
> Robert Love
Mike - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |