<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [ILK/HSW]igt/gem_tiled_swapping randomly causes OOM killer" href="https://bugs.freedesktop.org/show_bug.cgi?id=72742#c48">Comment # 48</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [ILK/HSW]igt/gem_tiled_swapping randomly causes OOM killer" href="https://bugs.freedesktop.org/show_bug.cgi?id=72742">bug 72742</a> from <a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> Chris Wilson</a> <pre>Alternate idea, diff --git a/mm/vmscan.c b/mm/vmscan.c index a9c74b409681..8c2cb1150d17 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -135,6 +135,10 @@ unsigned long vm_total_pages; /* The total number of pages which the VM controls static LIST_HEAD(shrinker_list); static DECLARE_RWSEM(shrinker_rwsem); +static bool throttle_direct_reclaim(gfp_t gfp_mask, + struct zonelist *zonelist, + nodemask_t *nodemask); + #ifdef CONFIG_MEMCG static bool global_reclaim(struct scan_control *sc) { @@ -1521,7 +1525,7 @@ shrink_inactive_list(unsigned long nr_to_scan, struct lruvec *lruvec, * of pages under pages flagged for immediate reclaim and stall if any * are encountered in the nr_immediate check below. */ - if (nr_writeback && nr_writeback == nr_taken) + if (nr_writeback > nr_taken / 2) zone_set_flag(zone, ZONE_WRITEBACK); /* @@ -2465,6 +2469,12 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist, WB_REASON_TRY_TO_FREE_PAGES); sc->may_writepage = 1; } + + if (global_reclaim(sc) && + throttle_direct_reclaim(sc->gfp_mask, + zonelist, + sc->nodemask)) + aborted_reclaim = true; } while (--sc->priority >= 0 && !aborted_reclaim); out:</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>