On Sun, Apr 18, 2010 at 12:31:09PM -0400, Andrew Morton wrote: > Yeah, but it's all bandaids. The first thing we should do is work out > why writeout-off-the-LRU increased so much and fix that. > > Handing writeout off to separate threads might be used to solve the > stack consumption problem but we shouldn't use it to "solve" the > excess-writeout-from-page-reclaim problem. I think both of them are really serious issue. Exposing the whole stack and lock problems with direct reclaim are a bit of a positive side-effect os the writeout tuning messup. Without it the problems would still be just as harmfull, just happenening even less often and thus getting even less attention. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>