On 11/03/2009 09:41 AM, Eric W. Biederman wrote: > Cedric Le Goater <legoater@xxxxxxx> writes: > >> On 11/02/2009 11:47 PM, Andrew Morton wrote: >>> On Mon, 2 Nov 2009 16:38:18 -0600 >>> "Serge E. Hallyn" <serue@xxxxxxxxxx> wrote: >>> >>>>> This bug hasn't been fixed yet, has it? >>>> >>>> Well Suka did trace the bug to commit 7766755a2f249e7, and posted a patch >>>> to revert that, acked by Eric on Oct 20. Suka, were you going to repost >>>> that patch? >>> >>> Ah. OK. Thanks. Found it in the backlog pile. >> >> We've added the patch to our patchset and we confirm that the pid_* leaks have >> been reduced to 'nearly' nothing but we still have a lot of inodes and dentries >> leaks. I hope to find some time to investigate and reproduce with a small >> scenario, we are running a LTP like testsuite in a container environment. > > Does forcing a cache flush help with the other leaks? yes, it frees a few more dentries, but not enough. I did: $ echo 2 > /proc/sys/vm/drop_caches before : size-64 193243 198088 88 44 1 dentry 110584 111202 280 14 1 inode_cache 107543 107543 4096 1 1 size-128 56341 63450 152 25 1 size-4096 21107 21107 4096 1 1 vm_area_struct 11838 11960 192 20 1 size-256 11406 11424 280 14 1 size-32 9408 9916 56 67 1 size-512 7710 7710 4096 1 1 sysfs_dir_cache 5288 5328 104 37 1 pid_2 302 336 136 28 1 pid_namespace 1 1 4096 1 1 nsproxy 1 53 72 53 1 after: size-64 193150 198044 88 44 1 dentry 110509 111202 280 14 1 inode_cache 107543 107543 4096 1 1 size-128 56326 63450 152 25 1 size-4096 21107 21107 4096 1 1 vm_area_struct 11857 11960 192 20 1 size-256 11405 11424 280 14 1 size-32 9408 9916 56 67 1 size-512 7710 7710 4096 1 1 sysfs_dir_cache 5288 5328 104 37 1 pid_2 302 336 136 28 1 pid_namespace 1 1 4096 1 1 nsproxy 1 53 72 53 1 I'll come back to you (daniel or me) when we've nailed this one with a simpler program. it shows up when stressing the system with lxc containers. Cheers, C. _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
