https://bugzilla.novell.com/show_bug.cgi?id=757783 https://bugzilla.novell.com/show_bug.cgi?id=757783#c39 --- Comment #39 from Mike Galbraith <mgalbraith@suse.com> 2012-05-06 10:32:41 UTC --- As if this bug wasn't annoying enough just to trace, applying the fix is annoying too. Including proc_fs.h in fork.c breaks kABI in SLE11-SP2 for some reason. Have to double check 12.1, then push both. To put the final touches on this bug, namespaces are flat not amenable to the high frequency fork/exit/waitpid usage vsftpd is apparently doing. Children call synchronize_rcu() on exit, making them stick around for a while, and worse, the parent calls rcu_barrier() on each and every unmount while reaping since d863b50ab 2.6.38-rc5, meaning 1 child per tick is all it can reap. With many children to reap, zombies persist for ages as targets of readdir() in procfs, bloating cache. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.