On Fri, Oct 29, 2010 at 11:13:28AM -0700, Dave Hansen wrote: > On Fri, 2010-10-29 at 14:14 +0200, Heiko Carstens wrote: > > present:2068480kB > > So, ~2GB available. > > > mlocked:4452kB > > unevictable:4452kB writeback:0kB mapped:3684kB shmem:0kB > > slab_reclaimable:1778388kB > > slab_unreclaimable:188388kB kernel_stack:4016kB pagetables:2232kB > > unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:542 > > all_unreclaimable? yes > > Plus about 1.8GB of unreclaimable slab. all_unreclaimable is set. So, > you reclaimed all of the user memory that you could get and swapped out > what could have been swapped out. What was left was slab. > > This OOM looks proper to me. What was eating all of your slab? Thanks to you and Andrew for looking at this. I'll ask Hartmut to rerun the test and taking slabinfo snapshots while doing that. One question remains however: why is the verbose output saying slab_reclaimable:1778388kB and just afterwards slab_unreclaimable:188388kB Looking only at slab_reclaimable I had the impression there _could_ have been plenty of memory that could be reclaimed. Just wondering :) -- 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>