NFSD: attempt to initialize ... client tracking ... in a container about docker-nfs-server

[phlax]

im thinking this issue is not related to the grace period, and may well not be a problem. Not sure how to test the client-tracking

[fishingfly]

same problem

[  241.983122] NFSD: Unable to initialize client recovery tracking! (-22)
[  241.983125] NFSD: starting 90-second grace period (net f0001296)
[  274.339363] NFS: Registering the id_resolver key type
[  274.339370] Key type id_resolver registered
[  274.339371] Key type id_legacy registered
[  274.401357] RPC: server localhost requires stronger authentication.
[  274.401381] RPC: server localhost requires stronger authentication.
[  274.401406] RPC: server localhost requires stronger authentication.
[  274.401433] RPC: server localhost requires stronger authentication.
[  274.401435] svc: failed to register lockdv1 RPC service (errno 13).
[  274.401436] lockd_up: makesock failed, error=-13
[  274.401460] RPC: server localhost requires stronger authentication.
[  274.401484] RPC: server localhost requires stronger authentication.
[  274.401507] RPC: server localhost requires stronger authentication.
[  484.420888] INFO: task mount.nfs:32840 blocked for more than 120 seconds.
[  484.420899]       Tainted: G           OE     5.4.0-42-generic #46-Ubuntu
[  484.420903] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  484.420908] mount.nfs       D    0 32840      1 0x00004004
[  484.420913] Call Trace:
[  484.420925]  __schedule+0x2e3/0x740
[  484.420931]  ? __call_rcu+0x1d0/0x1d0
[  484.420934]  schedule+0x42/0xb0
[  484.420948]  lockd_unregister_notifiers+0x66/0xa0 [lockd]
[  484.420952]  ? wait_woken+0x80/0x80
[  484.420961]  lockd_up+0x12a/0x2b0 [lockd]
[  484.420968]  nlmclnt_init+0x2c/0xc0 [lockd]
[  484.420983]  nfs_start_lockd+0xee/0x130 [nfs]
[  484.420998]  nfs_init_server+0x1df/0x350 [nfs]
[  484.421012]  nfs_create_server+0x77/0x1c0 [nfs]
[  484.421017]  nfs3_create_server+0x10/0x30 [nfsv3]
[  484.421037]  nfs_try_mount+0x1c5/0x2d0 [nfs]
[  484.421043]  ? __kmalloc_track_caller+0x180/0x270
[  484.421061]  nfs_fs_mount+0x285/0x740 [nfs]
[  484.421066]  ? __lookup_constant+0x4d/0x70
[  484.421083]  ? nfs_clone_super+0xe0/0xe0 [nfs]
[  484.421098]  ? nfs_parse_mount_options+0xd90/0xd90 [nfs]
[  484.421103]  legacy_get_tree+0x2b/0x50
[  484.421107]  vfs_get_tree+0x2a/0xc0
[  484.421112]  ? capable+0x19/0x20
[  484.421116]  do_mount+0x7b6/0x9c0
[  484.421121]  ksys_mount+0x82/0xd0
[  484.421125]  __x64_sys_mount+0x25/0x30
[  484.421130]  do_syscall_64+0x57/0x190
[  484.421134]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  484.421139] RIP: 0033:0x7f61b755ac7e
[  484.421148] Code: Bad RIP value.
[  484.421151] RSP: 002b:00007fff6681cb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  484.421154] RAX: ffffffffffffffda RBX: 00007fff6681cd30 RCX: 00007f61b755ac7e
[  484.421155] RDX: 00005629cda8a880 RSI: 00005629cda88b40 RDI: 00005629cda88b60
[  484.421157] RBP: 00007f61b71627b8 R08: 00005629cda8cc60 R09: 00005629cda8cc60
[  484.421159] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  484.421160] R13: 00007fff6681cc10 R14: 00005629cda8cc20 R15: 00005629cda8ab70
[  605.256665] INFO: task mount.nfs:32840 blocked for more than 241 seconds.
[  605.256677]       Tainted: G           OE     5.4.0-42-generic #46-Ubuntu
[  605.256680] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  605.256686] mount.nfs       D    0 32840      1 0x00004004
[  605.256691] Call Trace:
[  605.256703]  __schedule+0x2e3/0x740
[  605.256709]  ? __call_rcu+0x1d0/0x1d0
[  605.256712]  schedule+0x42/0xb0
[  605.256727]  lockd_unregister_notifiers+0x66/0xa0 [lockd]
[  605.256732]  ? wait_woken+0x80/0x80
[  605.256740]  lockd_up+0x12a/0x2b0 [lockd]
[  605.256747]  nlmclnt_init+0x2c/0xc0 [lockd]
[  605.256762]  nfs_start_lockd+0xee/0x130 [nfs]
[  605.256777]  nfs_init_server+0x1df/0x350 [nfs]
[  605.256791]  nfs_create_server+0x77/0x1c0 [nfs]
[  605.256796]  nfs3_create_server+0x10/0x30 [nfsv3]
[  605.256815]  nfs_try_mount+0x1c5/0x2d0 [nfs]
[  605.256821]  ? __kmalloc_track_caller+0x180/0x270
[  605.256840]  nfs_fs_mount+0x285/0x740 [nfs]
[  605.256846]  ? __lookup_constant+0x4d/0x70
[  605.256862]  ? nfs_clone_super+0xe0/0xe0 [nfs]
[  605.256876]  ? nfs_parse_mount_options+0xd90/0xd90 [nfs]
[  605.256881]  legacy_get_tree+0x2b/0x50
[  605.256886]  vfs_get_tree+0x2a/0xc0
[  605.256891]  ? capable+0x19/0x20
[  605.256895]  do_mount+0x7b6/0x9c0
[  605.256900]  ksys_mount+0x82/0xd0
[  605.256904]  __x64_sys_mount+0x25/0x30
[  605.256909]  do_syscall_64+0x57/0x190
[  605.256914]  entry_SYSCALL_64_after_hwframe+0x44/0xa9