On Mon, Nov 25, 2013 at 08:06:48AM -0800, Christoph Hellwig wrote: > On Sun, Nov 24, 2013 at 03:27:58PM +0000, Al Viro wrote: > > which seems to leave two candidates - follow_dotdot_rcu() and path_init(), > > both setting nd->inode to nd->path.dentry->d_inode... > > > > Could you try to reproduce it with something like > > if (read_seqretry(&mount_lock, nd->m_seq)) > > goto failed; > > slapped before the success exit in follow_dotdot_rcu(), just to see if > > we are hitting some races with umount here? > > Still reproducable with the diff below. Fixed by reverting the RCU'd > vfsmounts. .config, please - all I'm seeing on mine is a bloody awful leak somewhere in VM that I'd been hunting for last week, so the damn thing gets OOMed halfway through xfstests run ;-/ -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
