https://pmc.acronis.com/browse/TTASK-23738
[Wed May 16 11:22:02 2018] nfs: server 172.16.50.211 not responding, timed out [Wed May 16 11:45:18 2018] ------------[ cut here ]------------ [Wed May 16 11:45:18 2018] WARNING: CPU: 8 PID: 14959 at fs/locks.c:2431 locks_remove_flock+0x1ea/0x200 [Wed May 16 11:45:18 2018] leftover lock: dev=0:44 ino=671023203 type=1 flags=0x1 start=9223372036854775805 end=9223372036854775805 ... [Thu May 17 13:40:10 2018] Tainting kernel with flag 0x9 [Thu May 17 13:40:10 2018] CPU: 0 PID: 47323 Comm: co_io ve: 0 Tainted: G W ------------ 3.10.0-693.17.1.vz7.43.10 #1 43.10 [Thu May 17 13:40:10 2018] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090006 05/23/2012 [Thu May 17 13:40:10 2018] Call Trace: [Thu May 17 13:40:10 2018] [<ffffffff816d5d81>] dump_stack+0x19/0x1b [Thu May 17 13:40:10 2018] [<ffffffff8108a402>] add_taint+0x32/0x70 [Thu May 17 13:40:10 2018] [<ffffffff8108a8aa>] __warn+0xaa/0x100 [Thu May 17 13:40:10 2018] [<ffffffff8108a95f>] warn_slowpath_fmt+0x5f/0x80 [Thu May 17 13:40:10 2018] [<ffffffffc059c3ff>] ? nfs_flock+0x8f/0x110 [nfs] [Thu May 17 13:40:10 2018] [<ffffffff8127ae1a>] locks_remove_flock+0x1ea/0x200 [Thu May 17 13:40:10 2018] [<ffffffff81220f6e>] __fput+0xce/0x2d0 [Thu May 17 13:40:10 2018] [<ffffffff8122125e>] ____fput+0xe/0x10 [Thu May 17 13:40:10 2018] [<ffffffff810b192f>] __task_work_run+0x8f/0xd0 [Thu May 17 13:40:10 2018] [<ffffffff810a2045>] get_signal_to_deliver+0x545/0x5e0 [Thu May 17 13:40:10 2018] [<ffffffffc059c2a5>] ? nfs_lock+0xd5/0x1a0 [nfs] [Thu May 17 13:40:10 2018] [<ffffffff812797a2>] ? vfs_lock_file+0x32/0x50 [Thu May 17 13:40:10 2018] [<ffffffff81279849>] ? locks_remove_posix.part.27+0x89/0xc0 [Thu May 17 13:40:10 2018] [<ffffffffc059bf6e>] ? nfs_file_fsync_commit+0x5e/0xd0 [nfs] [Thu May 17 13:40:10 2018] [<ffffffff8102a387>] do_signal+0x57/0x6b0 [Thu May 17 13:40:10 2018] [<ffffffff81253313>] ? vfs_fsync_range+0x93/0x180 [Thu May 17 13:40:10 2018] [<ffffffff810b1821>] ? task_work_add+0x51/0x60 [Thu May 17 13:40:10 2018] [<ffffffff81220e48>] ? fput+0x58/0xb0 [Thu May 17 13:40:10 2018] [<ffffffff8121c52b>] ? filp_close+0x5b/0x80 [Thu May 17 13:40:10 2018] [<ffffffff8102aa3f>] do_notify_resume+0x5f/0xb0 [Thu May 17 13:40:10 2018] [<ffffffff816e8db7>] int_signal+0x12/0x17 FL_POSIX lock is unexpectedly left locked, it was created for the struct file we do __fput. It should've been already removed in locks_remove_posix. Might be connected with nfs-server disconnect but that does not reproduce manually. Need more info to investigate it. Signed-off-by: Pavel Tikhomirov <ptikhomi...@virtuozzo.com> --- fs/locks.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/fs/locks.c b/fs/locks.c index b1667f364a9e..54c1d0ce979f 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -2424,11 +2424,15 @@ void locks_remove_flock(struct file *filp) * the list. */ WARN(!IS_FLOCK(fl), - "leftover lock: dev=%u:%u ino=%lu type=%hhd flags=0x%x start=%lld end=%lld\n", + "leftover lock: dev=%u:%u ino=%lu type=%hhd flags=0x%x start=%lld end=%lld " + "owner=%p counter=%d pid=%u ops=%p lmops=%p blocked=%d\n", MAJOR(inode->i_sb->s_dev), MINOR(inode->i_sb->s_dev), inode->i_ino, fl->fl_type, fl->fl_flags, - fl->fl_start, fl->fl_end); + fl->fl_start, fl->fl_end, + fl->fl_owner, fl->fl_owner ? fl->fl_owner->count.counter : 0, + fl->fl_pid, fl->fl_ops, fl->fl_lmops, + !list_empty(&fl->fl_block)); locks_delete_lock(before, &dispose); continue; -- 2.17.0 _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel