commit 33cee6675edecbd27c0628f8b7c74c7d88fc02b2 http://git.kernel.org/?p=utils/util-linux/util-linux-ng.git;a=commitdiff;h=33cee6675edecbd27c0628f8b7c74c7d88fc02b2;hp=fde25e6be6e00a0998eb58b4b9d0d0b9ad65dbfd "umount: allow unmounting loopdev specified by associated file" broke umounting (by mountpoint) for broken nfs mounts, because now umount always call stat() for target argument and umount hang inside nfs-rpc: [<ffffffff8163df3f>] rpc_wait_bit_killable+0x1f/0x40 [<ffffffff8163eb85>] __rpc_execute+0xe5/0x2f0 [<ffffffff8163eebe>] rpc_execute+0x3e/0x50 [<ffffffff816372f0>] rpc_run_task+0x70/0x90 [<ffffffff816373fe>] rpc_call_sync+0x3e/0x70 [<ffffffff812228f3>] nfs3_rpc_wrapper.constprop.11+0x43/0x70 [<ffffffff81223bd2>] nfs3_proc_getattr+0x42/0x80 [<ffffffff81212955>] __nfs_revalidate_inode+0x95/0x1f0 [<ffffffff81212bf1>] nfs_revalidate_inode+0x31/0x60 [<ffffffff81212cca>] nfs_getattr+0x5a/0x110 [<ffffffff8112caea>] vfs_getattr+0x1a/0x30 [<ffffffff8112cce3>] vfs_fstatat+0x53/0x70 [<ffffffff8112cd36>] vfs_stat+0x16/0x20 [<ffffffff8112d0c5>] sys_newstat+0x15/0x30 [<ffffffff816c45bb>] tracesys+0xd9/0xde [<ffffffffffffffff>] 0xffffffffffffffff so mount /mnt/nfs get stuck, umounting by device is still possible. -- To unsubscribe from this list: send the line "unsubscribe util-linux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
