Messages in this thread | | | Subject | Re: [BUG] perf and kmemcheck : fatal combination | From | Pekka Enberg <> | Date | Tue, 26 Apr 2011 22:13:12 +0300 |
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On Tue, 2011-04-26 at 14:33 +0200, Peter Zijlstra wrote: > On Tue, 2011-04-26 at 14:27 +0200, Eric Dumazet wrote: > > Thats far from trivial, maybe because we dont have NOTRACK api for > > percpu allocations ? > > We can't use per-cpu allocations from NMI context because of the same > problem, per-cpu uses vmalloc and vmalloc needs faults. Hence that > shouldn't be a problem. > > It looks like you covered most of it though, the buffer and the > callchain stuff, aside from that it should only use some static data. > > Pekka, what does kmemcheck do for .data and .bss things?
No, kmemcheck is only active for memory allocated with slab and the page allocator .
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