Messages in this thread | | | Date | Sun, 22 Sep 2002 18:39:33 -0700 | From | Andrew Morton <> | Subject | Re: 2.5.38-mm1 |
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John Levon wrote: > > On Sun, Sep 22, 2002 at 05:54:31PM -0700, Andrew Morton wrote: > > > It found a bug. Someone is calling kmem_cache_create() in an > > atomic region. > > And kmem_cache_alloc() has jumped to the top of the profile (checked > with readprofile) in 2.3.38-linus. >
Linus disabled the cpu-local caches if slab debugging is enabled. This is because they were not being poisoned, and so SMP machines were not getting the full debug benefit of slab poisoning.
If you disable kernel debugging (either in config, or locally in slab) then it should be fine.
Slab performance has always been sucky with debug enabled, so no real loss there. - 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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