Messages in this thread | | | Subject | Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413 | From | Benjamin Herrenschmidt <> | Date | Wed, 23 Nov 2011 12:43:53 +1100 |
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> > I just want to see whether your network + heavy IO load problem goes > > away with that one patch. > > Sorry, I should have been clearer in that mail: the high "load" value > isn't a problem - the intermittent panics are. What I meant to say was: > the panics usually occur when lots of disk & cpu IO is in progress (rsync > to an external but local disk over firewire). While doing this the load is > usally at 3-5, but that's "normal" and expected for a machine of that age.
No, I understand your problem. What I meant above is to see whether you reproduce the crash caused by network + heavy IO :-)
> But then the machine crashes with recent kernels. After setting the > cpu_partial files to 0 I tried to reproduce the same I/O pattern, *plus* a > bit more, to really stress the machine, so load went up to 6-7 and the > machine did not crash. So the load of 6-7 was expected and I'm glad that > the machine did not crash with that workaround. I don't know of the > implications of setting cpu_partial to 0 though.
Right. Now we want to check if that patch from Christoph fixes cpu partial.
> As soon as the build with Christoph's one-liner is done I'll test w/o > setting cpu_partial to 0 and see what it gives.
Thanks !
Cheers, Ben.
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