On Tue 27-01-15 16:03:57, Vinayak Menon wrote: [...] > Sure, I can retest. Thanks! > Even without highly overloaded workqueues, there can be a delay of HZ in > updating the counters. This means reclaim path can be blocked for a second > or more, when there aren't really any isolated pages. So we need the fix in > too_many_isolated also right ? Is this a big deal though? What you are hitting is certainly a corner case. I assume your system is trashing heavily already with so few pages on the file LRU list. Anyway as mentioned in other email I would rather see vmstat data more reliable than spread hacks to the code where we see immediate issues. -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>