Messages in this thread | | | Date | Thu, 14 Aug 2003 12:45:18 +0400 | From | Oleg Drokin <> | Subject | Re: 2.4.22-pre lockups (now decoded oops for pre10) |
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Hello!
> > You seem to be getting corruptions in at least 2 days for now, though. > > And reiserfs seems to trigger the problem even faster (and may be > > even more faster if you enable CONFIG_REISERFS_CHECK). > well, I have an idea how to find out more about these verify problem. Basically > I would try to patch tar to ouput the differing areas to stdout in hexdump > format or the like. Only I need some time to make this work out. I hope to find > some pattern about this corruption.
Yes, that would be interesting.
> > > If we can add "ext3 does not crash" to the list, then I really hope we can > > > use some brain and give good selection of patches between 2.4.20 and 2.4.21 > > > that may cause the troubles. > > There were not much changes in reiserfs. All those patches can easily be > > reverted just for verification purposes. Let me know when you are ready/want > > to test this variant and I will send you a diff. > Hm, my primary belief is that something _around_ reiserfs has changed > semantics.
Well. Might be, but this is unlikely. And I do not remember anything like that. I will take a closer look, though.
> > > If possible I can then patch out all of them and retry. So there is much > > > less time spent for testing. > > > I mean, have you looked at the length of this thread already? > > Yes, I did. > > Now if only we can get someone to reproduce your problems... > Hm, I believe nobody in fact tried a setup like mine. As I have clear > indication that I can trigger it simply by using an SMP box, installing SuSE > 8.2, compiling stock 2.4.22-rc2 kernel exporting some reiserfs to a nfs-client > of your choice and starting copying data with sizes around 100GB back and > forth.
sounds like quite typical setup for some tasks (like clusters I guess).
> > > > Probably it would be easier for you to make it crash (if there are crash > > > > possibility at all) if you enable JBD debugging. > > > I have never seen this in real life. Is it possible to turn this on when > > > handling >100 GB of data or will some debug output flood the box? > > It only enables some more checks, not debug output. > Does this work for ext3, reiserfs or both?
This works for ext3 For reiserfs we have similar compile time option that is called CONFIG_REISERFS_CHECK
Thank you for all the time and efforts you are putting into finding out the cause.
Bye, Oleg - 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/
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