Messages in this thread | | | Date | Thu, 10 Jul 2003 04:27:28 -0700 | From | William Lee Irwin III <> | Subject | Re: 2.5.74-mm3 OOM killer fubared ? |
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On Thu, Jul 10, 2003 at 11:14:59AM +0000, Miquel van Smoorenburg wrote: > Enough memory free, no problems at all .. yet every few minutes > the OOM killer kills one of my innfeed processes. > I notice that in -mm3 this was deleted relative to -vanilla: > > - > - /* > - * Enough swap space left? Not OOM. > - */ > - if (nr_swap_pages > 0) > - return; > .. is that what causes this ? In any case, that should't vene matter - > there's plenty of memory in this box, all buffers and cached, but that > should be easily freed ..
This means we're calling into it more often than we should be. Basically, we hit __alloc_pages() with __GFP_WAIT set, find nothing we're allowed to touch, dive into try_to_free_pages(), fall through scanning there, sleep in blk_congestion_wait(), wake up again, try to shrink_slab(), find nothing there either, repeat that 11 more times, and then fall through to out_of_memory()... and this happens at at least 10Hz.
since = now - lastkill; if (since < HZ*5) goto out_unlock;
try s/goto out_unlock/goto reset/ and let me know how it goes.
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