Why should this have changed. This anoying bug is existing since 15.10 and even if there are several tickets nobody funkin cares!

https://bugs.launchpad.net/ubuntu/+source/linux-lts-wily/+bug/1583191
https://bugs.launchpad.net/ubuntu/+source/linux-lts-xenial/+bug/1579803

And yes i'm not dump. I tried the latest kernel...even 4.13...oh wonder...nothing changed....

AND NO this ic NO UPSTREAM BUG! This is Ubuntu related ONLY!!!!!! I'm using DEBIAN 9 with exactly the same Samba settings, just an other samba version and kernel 4.9.
MY guess is this is a Samba related problem!
It happens ONLY when there is heavy use on Samba!


[   37.424709] audit: type=1400 audit(1503500221.451:3):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=683
comm="apparmor_parser"
[   37.424959] audit: type=1400 audit(1503500221.452:4):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=683 comm="apparmor_parser"
[   37.425188] audit: type=1400 audit(1503500221.452:5):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/connman/scripts/dhclient-script" pid=683
comm="apparmor_parser"
[   37.704058] audit: type=1400 audit(1503500221.731:6):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/snapd/snap-confine" pid=688 comm="apparmor_parser"
[   37.704408] audit: type=1400 audit(1503500221.731:7):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/snapd/snap-confine//mount-namespace-capture-helper"
pid=688 comm="apparmor_parser"
[   37.714792] audit: type=1400 audit(1503500221.742:8):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/lightdm/lightdm-guest-session" pid=684 comm="apparmor_parser"
[   37.715154] audit: type=1400 audit(1503500221.742:9):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/lightdm/lightdm-guest-session//chromium" pid=684
comm="apparmor_parser"
[   37.814957] audit: type=1400 audit(1503500221.842:10):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/sbin/cups-browsed" pid=690 comm="apparmor_parser"
[   37.854086] audit: type=1400 audit(1503500221.881:11):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/sbin/ippusbxd" pid=694 comm="apparmor_parser"
[   67.352219] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state
recovery directory
[   67.352252] NFSD: starting 90-second grace period (net ffffffffaf1ec8c0)
[   82.774749] kauditd_printk_skb: 5 callbacks suppressed
[   82.774751] audit: type=1400 audit(1503500267.300:17):
apparmor="DENIED" operation="capable" profile="/usr/sbin/ntpd" pid=1467
comm="ntpd" capability=12  capname="net_admin"
[  114.385440] random: crng init done
[89653.176401] INFO: task btrfs-cleaner:226 blocked for more than 120
seconds.
[89653.176425]       Not tainted 4.13.0-041300rc6-generic #201708201831
[89653.176426] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[89653.176428] btrfs-cleaner   D    0   226      2 0x00000000
[89653.176432] Call Trace:
[89653.176473]  __schedule+0x28b/0x890
[89653.176475]  schedule+0x36/0x80
[89653.176639]  wait_current_trans+0xd8/0x110 [btrfs]
[89653.176652]  ? wait_woken+0x80/0x80
[89653.176667]  start_transaction+0x33a/0x410 [btrfs]
[89653.176681]  btrfs_start_transaction+0x1e/0x20 [btrfs]
[89653.176693]  btrfs_drop_snapshot+0x90/0x890 [btrfs]
[89653.176706]  ? btrfs_delete_unused_bgs+0x36/0x3c0 [btrfs]
[89653.176720]  btrfs_clean_one_deleted_snapshot+0xb7/0x100 [btrfs]
[89653.176733]  cleaner_kthread+0x14a/0x180 [btrfs]
[89653.176739]  kthread+0x125/0x140
[89653.176753]  ? __btree_submit_bio_start+0x20/0x20 [btrfs]
[89653.176754]  ? kthread_create_on_node+0x70/0x70
[89653.176755]  ? kthread_create_on_node+0x70/0x70
[89653.176760]  ret_from_fork+0x25/0x30
[89653.176776] INFO: task nmbd:1367 blocked for more than 120 seconds.
[89653.176777]       Not tainted 4.13.0-041300rc6-generic #201708201831
[89653.176778] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[89653.176780] nmbd            D    0  1367      1 0x00000000
[89653.176781] Call Trace:
[89653.176783]  __schedule+0x28b/0x890
[89653.176784]  schedule+0x36/0x80
[89653.176800]  lock_extent_bits+0x170/0x1c0 [btrfs]
[89653.176801]  ? wait_woken+0x80/0x80
[89653.176816]  lock_and_cleanup_extent_if_need+0x88/0x350 [btrfs]
[89653.176831]  __btrfs_buffered_write+0x26c/0x730 [btrfs]
[89653.176846]  btrfs_file_write_iter+0x1f1/0x560 [btrfs]
[89653.176857]  __vfs_write+0xf5/0x170
[89653.176859]  vfs_write+0xb1/0x1a0
[89653.176861]  SyS_write+0x55/0xc0
[89653.176863]  entry_SYSCALL_64_fastpath+0x1e/0xa9
[89653.176864] RIP: 0033:0x7fa7b0ccb670
[89653.176865] RSP: 002b:00007ffc58804b88 EFLAGS: 00000246 ORIG_RAX:
0000000000000001
[89653.176866] RAX: ffffffffffffffda RBX: 0000556380ae3050 RCX:
00007fa7b0ccb670
[89653.176867] RDX: 0000000000000062 RSI: 00007ffc588050f0 RDI:
0000000000000018
[89653.176868] RBP: 0000000000000002 R08: 000000000000c0ff R09:
0000000000000000
[89653.176869] R10: 0000000000000073 R11: 0000000000000246 R12:
0000556380adffe0
[89653.176870] R13: 0000556380ae0340 R14: 0000000000000019 R15:
000000003b9aca00
[89653.176886] INFO: task kworker/u4:0:14162 blocked for more than 120
seconds.
[89653.176887]       Not tainted 4.13.0-041300rc6-generic #201708201831
[89653.176888] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[89653.176889] kworker/u4:0    D    0 14162      2 0x00000000
[89653.176909] Workqueue: btrfs-endio-write btrfs_endio_write_helper [btrfs]
[89653.176910] Call Trace:
[89653.176912]  __schedule+0x28b/0x890
[89653.176913]  schedule+0x36/0x80
[89653.176927]  wait_current_trans+0xd8/0x110 [btrfs]
[89653.176928]  ? wait_woken+0x80/0x80
[89653.176942]  start_transaction+0x2b5/0x410 [btrfs]
[89653.176956]  btrfs_join_transaction+0x1d/0x20 [btrfs]
[89653.176970]  btrfs_finish_ordered_io+0x2ae/0x7d0 [btrfs]
[89653.176985]  ? end_compressed_bio_write+0xe0/0xf0 [btrfs]
[89653.177000]  finish_ordered_fn+0x15/0x20 [btrfs]
[89653.177015]  btrfs_worker_helper+0x7a/0x2e0 [btrfs]
[89653.177030]  btrfs_endio_write_helper+0xe/0x10 [btrfs]
[89653.177033]  process_one_work+0x1e7/0x410
[89653.177035]  worker_thread+0x4a/0x410
[89653.177036]  kthread+0x125/0x140
[89653.177037]  ? process_one_work+0x410/0x410
[89653.177038]  ? kthread_create_on_node+0x70/0x70
[89653.177040]  ret_from_fork+0x25/0x30
[89653.177059] INFO: task kworker/u4:5:14405 blocked for more than 120
seconds.
[89653.177061]       Not tainted 4.13.0-041300rc6-generic #201708201831
[89653.177062] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[89653.177063] kworker/u4:5    D    0 14405      2 0x00000000
[89653.177081] Workqueue: btrfs-endio-write btrfs_endio_write_helper [btrfs]
[89653.177082] Call Trace:
[89653.177084]  __schedule+0x28b/0x890
[89653.177085]  schedule+0x36/0x80
[89653.177099]  wait_current_trans+0xd8/0x110 [btrfs]
[89653.177100]  ? wait_woken+0x80/0x80
[89653.177114]  start_transaction+0x2b5/0x410 [btrfs]
[89653.177128]  btrfs_join_transaction+0x1d/0x20 [btrfs]
[89653.177142]  btrfs_finish_ordered_io+0x2ae/0x7d0 [btrfs]
[89653.177158]  ? end_compressed_bio_write+0xe0/0xf0 [btrfs]
[89653.177172]  finish_ordered_fn+0x15/0x20 [btrfs]
[89653.177187]  btrfs_worker_helper+0x7a/0x2e0 [btrfs]
[89653.177202]  btrfs_endio_write_helper+0xe/0x10 [btrfs]
[89653.177204]  process_one_work+0x1e7/0x410
[89653.177205]  worker_thread+0x4a/0x410
[89653.177206]  kthread+0x125/0x140
[89653.177207]  ? process_one_work+0x410/0x410
[89653.177208]  ? kthread_create_on_node+0x70/0x70
[89653.177210]  ret_from_fork+0x25/0x30
[89653.177212] INFO: task kworker/u4:2:14479 blocked for more than 120
seconds.
[89653.177213]       Not tainted 4.13.0-041300rc6-generic #201708201831
[89653.177214] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[89653.177215] kworker/u4:2    D    0 14479      2 0x00000000
[89653.177232] Workqueue: btrfs-endio-write btrfs_endio_write_helper [btrfs]
[89653.177233] Call Trace:
[89653.177235]  __schedule+0x28b/0x890
[89653.177236]  schedule+0x36/0x80
[89653.177250]  wait_current_trans+0xd8/0x110 [btrfs]
[89653.177251]  ? wait_woken+0x80/0x80
[89653.177265]  start_transaction+0x2b5/0x410 [btrfs]
[89653.177279]  btrfs_join_transaction+0x1d/0x20 [btrfs]
[89653.177293]  btrfs_finish_ordered_io+0x2ae/0x7d0 [btrfs]
[89653.177308]  ? end_compressed_bio_write+0xe0/0xf0 [btrfs]
[89653.177323]  finish_ordered_fn+0x15/0x20 [btrfs]
[89653.177338]  btrfs_worker_helper+0x7a/0x2e0 [btrfs]
[89653.177353]  btrfs_endio_write_helper+0xe/0x10 [btrfs]
[89653.177355]  process_one_work+0x1e7/0x410
[89653.177356]  worker_thread+0x4a/0x410
[89653.177357]  kthread+0x125/0x140
[89653.177358]  ? process_one_work+0x410/0x410
[89653.177359]  ? kthread_create_on_node+0x70/0x70
[89653.177361]  ret_from_fork+0x25/0x30
[89653.177364] INFO: task winbindd:14552 blocked for more than 120 seconds.
[89653.177365]       Not tainted 4.13.0-041300rc6-generic #201708201831
[89653.177366] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[89653.177367] winbindd        D    0[   37.424709] audit: type=1400 audit(1503500221.451:3):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=683
comm="apparmor_parser"
[   37.424959] audit: type=1400 audit(1503500221.452:4):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=683 comm="apparmor_parser"
[   37.425188] audit: type=1400 audit(1503500221.452:5):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/connman/scripts/dhclient-script" pid=683
comm="apparmor_parser"
[   37.704058] audit: type=1400 audit(1503500221.731:6):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/snapd/snap-confine" pid=688 comm="apparmor_parser"
[   37.704408] audit: type=1400 audit(1503500221.731:7):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/snapd/snap-confine//mount-namespace-capture-helper"
pid=688 comm="apparmor_parser"
[   37.714792] audit: type=1400 audit(1503500221.742:8):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/lightdm/lightdm-guest-session" pid=684 comm="apparmor_parser"
[   37.715154] audit: type=1400 audit(1503500221.742:9):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/lightdm/lightdm-guest-session//chromium" pid=684
comm="apparmor_parser"
[   37.814957] audit: type=1400 audit(1503500221.842:10):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/sbin/cups-browsed" pid=690 comm="apparmor_parser"
[   37.854086] audit: type=1400 audit(1503500221.881:11):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/sbin/ippusbxd" pid=694 comm="apparmor_parser"
[   67.352219] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state
recovery directory
[   67.352252] NFSD: starting 90-second grace period (net ffffffffaf1ec8c0)
[   82.774749] kauditd_printk_skb: 5 callbacks suppressed
[   82.774751] audit: type=1400 audit(1503500267.300:17):
apparmor="DENIED" operation="capable" profile="/usr/sbin/ntpd" pid=1467
comm="ntpd" capability=12  capname="net_admin"
[  114.385440] random: crng init done
[89653.176401] INFO: task btrfs-cleaner:226 blocked for more than 120
seconds.
[89653.176425]       Not tainted 4.13.0-041300rc6-generic #201708201831
[89653.176426] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[89653.176428] btrfs-cleaner   D    0   226      2 0x00000000
[89653.176432] Call Trace:
[89653.176473]  __schedule+0x28b/0x890
[89653.176475]  schedule+0x36/0x80
[89653.176639]  wait_current_trans+0xd8/0x110 [btrfs]
[89653.176652]  ? wait_woken+0x80/0x80
[89653.176667]  start_transaction+0x33a/0x410 [btrfs]
[89653.176681]  btrfs_start_transaction+0x1e/0x20 [btrfs]
[89653.176693]  btrfs_drop_snapshot+0x90/0x890 [btrfs]
[89653.176706]  ? btrfs_delete_unused_bgs+0x36/0x3c0 [btrfs]
[89653.176720]  btrfs_clean_one_deleted_snapshot+0xb7/0x100 [btrfs]
[89653.176733]  cleaner_kthread+0x14a/0x180 [btrfs]
[89653.176739]  kthread+0x125/0x140
[89653.176753]  ? __btree_submit_bio_start+0x20/0x20 [btrfs]
[89653.176754]  ? kthread_create_on_node+0x70/0x70
[89653.176755]  ? kthread_create_on_node+0x70/0x70
[89653.176760]  ret_from_fork+0x25/0x30
[89653.176776] INFO: task nmbd:1367 blocked for more than 120 seconds.
[89653.176777]       Not tainted 4.13.0-041300rc6-generic #201708201831
[89653.176778] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[89653.176780] nmbd            D    0  1367      1 0x00000000
[89653.176781] Call Trace:
[89653.176783]  __schedule+0x28b/0x890
[89653.176784]  schedule+0x36/0x80
[89653.176800]  lock_extent_bits+0x170/0x1c0 [btrfs]
[89653.176801]  ? wait_woken+0x80/0x80
[89653.176816]  lock_and_cleanup_extent_if_need+0x88/0x350 [btrfs]
[89653.176831]  __btrfs_buffered_write+0x26c/0x730 [btrfs]
[89653.176846]  btrfs_file_write_iter+0x1f1/0x560 [btrfs]
[89653.176857]  __vfs_write+0xf5/0x170
[89653.176859]  vfs_write+0xb1/0x1a0
[89653.176861]  SyS_write+0x55/0xc0
[89653.176863]  entry_SYSCALL_64_fastpath+0x1e/0xa9
[89653.176864] RIP: 0033:0x7fa7b0ccb670
[89653.176865] RSP: 002b:00007ffc58804b88 EFLAGS: 00000246 ORIG_RAX:
0000000000000001
[89653.176866] RAX: ffffffffffffffda RBX: 0000556380ae3050 RCX:
00007fa7b0ccb670
[89653.176867] RDX: 0000000000000062 RSI: 00007ffc588050f0 RDI:
0000000000000018
[89653.176868] RBP: 0000000000000002 R08: 000000000000c0ff R09:
0000000000000000
[89653.176869] R10: 0000000000000073 R11: 0000000000000246 R12:
0000556380adffe0
[89653.176870] R13: 0000556380ae0340 R14: 0000000000000019 R15:
000000003b9aca00
[89653.176886] INFO: task kworker/u4:0:14162 blocked for more than 120
seconds.
[89653.176887]       Not tainted 4.13.0-041300rc6-generic #201708201831
[89653.176888] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[89653.176889] kworker/u4:0    D    0 14162      2 0x00000000
[89653.176909] Workqueue: btrfs-endio-write btrfs_endio_write_helper [btrfs]
[89653.176910] Call Trace:
[89653.176912]  __schedule+0x28b/0x890
[89653.176913]  schedule+0x36/0x80
[89653.176927]  wait_current_trans+0xd8/0x110 [btrfs]
[89653.176928]  ? wait_woken+0x80/0x80
[89653.176942]  start_transaction+0x2b5/0x410 [btrfs]
[89653.176956]  btrfs_join_transaction+0x1d/0x20 [btrfs]
[89653.176970]  btrfs_finish_ordered_io+0x2ae/0x7d0 [btrfs]
[89653.176985]  ? end_compressed_bio_write+0xe0/0xf0 [btrfs]
[89653.177000]  finish_ordered_fn+0x15/0x20 [btrfs]
[89653.177015]  btrfs_worker_helper+0x7a/0x2e0 [btrfs]
[89653.177030]  btrfs_endio_write_helper+0xe/0x10 [btrfs]
[89653.177033]  process_one_work+0x1e7/0x410
[89653.177035]  worker_thread+0x4a/0x410
[89653.177036]  kthread+0x125/0x140
[89653.177037]  ? process_one_work+0x410/0x410
[89653.177038]  ? kthread_create_on_node+0x70/0x70
[89653.177040]  ret_from_fork+0x25/0x30
[89653.177059] INFO: task kworker/u4:5:14405 blocked for more than 120
seconds.
[89653.177061]       Not tainted 4.13.0-041300rc6-generic #201708201831
[89653.177062] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[89653.177063] kworker/u4:5    D    0 14405      2 0x00000000
[89653.177081] Workqueue: btrfs-endio-write btrfs_endio_write_helper [btrfs]
[89653.177082] Call Trace:
[89653.177084]  __schedule+0x28b/0x890
[89653.177085]  schedule+0x36/0x80
[89653.177099]  wait_current_trans+0xd8/0x110 [btrfs]
[89653.177100]  ? wait_woken+0x80/0x80
[89653.177114]  start_transaction+0x2b5/0x410 [btrfs]
[89653.177128]  btrfs_join_transaction+0x1d/0x20 [btrfs]
[89653.177142]  btrfs_finish_ordered_io+0x2ae/0x7d0 [btrfs]
[89653.177158]  ? end_compressed_bio_write+0xe0/0xf0 [btrfs]
[89653.177172]  finish_ordered_fn+0x15/0x20 [btrfs]
[89653.177187]  btrfs_worker_helper+0x7a/0x2e0 [btrfs]
[89653.177202]  btrfs_endio_write_helper+0xe/0x10 [btrfs]
[89653.177204]  process_one_work+0x1e7/0x410
[89653.177205]  worker_thread+0x4a/0x410
[89653.177206]  kthread+0x125/0x140
[89653.177207]  ? process_one_work+0x410/0x410
[89653.177208]  ? kthread_create_on_node+0x70/0x70
[89653.177210]  ret_from_fork+0x25/0x30
[89653.177212] INFO: task kworker/u4:2:14479 blocked for more than 120
seconds.
[89653.177213]       Not tainted 4.13.0-041300rc6-generic #201708201831
[89653.177214] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[89653.177215] kworker/u4:2    D    0 14479      2 0x00000000
[89653.177232] Workqueue: btrfs-endio-write btrfs_endio_write_helper [btrfs]
[89653.177233] Call Trace:
[89653.177235]  __schedule+0x28b/0x890
[89653.177236]  schedule+0x36/0x80
[89653.177250]  wait_current_trans+0xd8/0x110 [btrfs]
[89653.177251]  ? wait_woken+0x80/0x80
[89653.177265]  start_transaction+0x2b5/0x410 [btrfs]
[89653.177279]  btrfs_join_transaction+0x1d/0x20 [btrfs]
[89653.177293]  btrfs_finish_ordered_io+0x2ae/0x7d0 [btrfs]
[89653.177308]  ? end_compressed_bio_write+0xe0/0xf0 [btrfs]
[89653.177323]  finish_ordered_fn+0x15/0x20 [btrfs]
[89653.177338]  btrfs_worker_helper+0x7a/0x2e0 [btrfs]
[89653.177353]  btrfs_endio_write_helper+0xe/0x10 [btrfs]
[89653.177355]  process_one_work+0x1e7/0x410
[89653.177356]  worker_thread+0x4a/0x410
[89653.177357]  kthread+0x125/0x140
[89653.177358]  ? process_one_work+0x410/0x410
[89653.177359]  ? kthread_create_on_node+0x70/0x70
[89653.177361]  ret_from_fork+0x25/0x30
[89653.177364] INFO: task winbindd:14552 blocked for more than 120 seconds.
[89653.177365]       Not tainted 4.13.0-041300rc6-generic #201708201831
[89653.177366] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[89653.177367] winbindd        D    0 14552   1373 0x00000000
[89653.177369] Call Trace:
[89653.177370]  __schedule+0x28b/0x890
[89653.177385]  ? ulist_add_merge+0xac/0x130 [btrfs]
[89653.177387]  schedule+0x36/0x80
[89653.177400]  wait_current_trans+0xd8/0x110 [btrfs]
[89653.177402]  ? wait_woken+0x80/0x80
[89653.177416]  start_transaction+0x33a/0x410 [btrfs]
[89653.177429]  btrfs_start_transaction+0x1e/0x20 [btrfs]
[89653.177444]  btrfs_mknod+0x5c/0x210 [btrfs]
[89653.177449]  vfs_mknod+0x141/0x1e0
[89653.177458]  unix_bind+0x12f/0x370
[89653.177467]  SYSC_bind+0x91/0x110
[89653.177469]  SyS_bind+0xe/0x10
[89653.177470]  entry_SYSCALL_64_fastpath+0x1e/0xa9
[89653.177471] RIP: 0033:0x7f7831092a57
[89653.177472] RSP: 002b:00007ffd9ddf8628 EFLAGS: 00000202 ORIG_RAX:
0000000000000031
[89653.177473] RAX: ffffffffffffffda RBX: 0000000000000008 RCX:
00007f7831092a57
[89653.177474] RDX: 000000000000006e RSI: 00007ffd9ddf8710 RDI:
0000000000000007
[89653.177475] RBP: 00007ffd9ddf86a8 R08: 00007f783134af18 R09:
0000000000000000
[89653.177476] R10: 00007f783134ab58 R11: 0000000000000202 R12:
00007ffd9ddf8710
[89653.177476] R13: 00007ffd9ddf8780 R14: 00007ffd9ddf86a8 R15:
0000557c3e398870
[89653.177478] INFO: task nmbd:14553 blocked for more than 120 seconds.
[89653.177494]       Not tainted 4.13.0-041300rc6-generic #201708201831
[89653.177496] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[89653.177497] nmbd            D    0 14553   1367 0x00000000
[89653.177498] Call Trace:
[89653.177500]  __schedule+0x28b/0x890
[89653.177502]  ? path_parentat+0x3e/0x80
[89653.177503]  schedule+0x36/0x80
[89653.177504]  rwsem_down_write_failed+0x245/0x380
[89653.177511]  call_rwsem_down_write_failed+0x17/0x30
[89653.177512]  ? call_rwsem_down_write_failed+0x17/0x30
[89653.177514]  down_write+0x2d/0x40
[89653.177515]  do_unlinkat+0x12a/0x310
[89653.177516]  ? vfs_write+0x132/0x1a0
[89653.177517]  SyS_unlink+0x16/0x20
[89653.177519]  entry_SYSCALL_64_fastpath+0x1e/0xa9
[89653.177520] RIP: 0033:0x7fa7ad1fe197
[89653.177521] RSP: 002b:00007ffc58804f18 EFLAGS: 00000206 ORIG_RAX:
0000000000000057
[89653.177522] RAX: ffffffffffffffda RBX: 0000000000000008 RCX:
00007fa7ad1fe197
[89653.177523] RDX: 00000000f397c580 RSI: 00007fa7ab2585a0 RDI:
00007ffc58804fb2
[89653.177523] RBP: 00007ffc58804f48 R08: 00007fa7ab25a1d8 R09:
0000000000000070
[89653.177524] R10: 00007fa7ad4c5b58 R11: 0000000000000206 R12:
00007ffc58804fb0
[89653.177525] R13: 00007ffc58805020 R14: 00007ffc58804f48 R15:
0000556380ada710
[89653.177527] INFO: task smbd:14554 blocked for more than 120 seconds.
[89653.177528]       Not tainted 4.13.0-041300rc6-generic #201708201831
[89653.177529] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[89653.177530] smbd            D    0 14554   1448 0x00000000
[89653.177531] Call Trace:
[89653.177533]  __schedule+0x28b/0x890
[89653.177534]  ? path_parentat+0x3e/0x80
[89653.177535]  schedule+0x36/0x80
[89653.177536]  rwsem_down_write_failed+0x245/0x380
[89653.177538]  call_rwsem_down_write_failed+0x17/0x30
[89653.177539]  ? call_rwsem_down_write_failed+0x17/0x30
[89653.177541]  down_write+0x2d/0x40
[89653.177542]  do_unlinkat+0x12a/0x310
[89653.177543]  ? vfs_write+0x132/0x1a0
[89653.177544]  SyS_unlink+0x16/0x20
[89653.177546]  entry_SYSCALL_64_fastpath+0x1e/0xa9
[89653.177547] RIP: 0033:0x7f9244845197
[89653.177547] RSP: 002b:00007ffc3a9fed38 EFLAGS: 00000206 ORIG_RAX:
0000000000000057
[89653.177549] RAX: ffffffffffffffda RBX: 0000000000000008 RCX:
00007f9244845197
[89653.177549] RDX: 0000000018db58f0 RSI: 00007f9243d105a0 RDI:
00007ffc3a9fedd2
[89653.177550] RBP: 00007ffc3a9fed68 R08: 00007f9244b0cbb8 R09:
0000000000000070
[89653.177551] R10: 00007f9244b0cb58 R11: 0000000000000206 R12:
00007ffc3a9fedd0
[89653.177551] R13: 00007ffc3a9fee40 R14: 00007ffc3a9fed68 R15:
00005629db2ab6e0
[90257.301402] INFO: task btrfs-cleaner:226 blocked for more than 120
seconds.
[90257.301415]       Not tainted 4.13.0-041300rc6-generic #201708201831
[90257.301417] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[90257.301420] btrfs-cleaner   D    0   226      2 0x00000000
[90257.301424] Call Trace:
[90257.301438]  __schedule+0x28b/0x890
[90257.301485]  ? btrfs_defrag_file+0x4cc/0xf70 [btrfs]
[90257.301488]  schedule+0x36/0x80
[90257.301510]  wait_current_trans+0xd8/0x110 [btrfs]
[90257.301514]  ? wait_woken+0x80/0x80
[90257.301534]  start_transaction+0x33a/0x410 [btrfs]
[90257.301548]  btrfs_start_transaction+0x1e/0x20 [btrfs]
[90257.301560]  btrfs_drop_snapshot+0x90/0x890 [btrfs]
[90257.301573]  ? btrfs_delete_unused_bgs+0x36/0x3c0 [btrfs]
[90257.301587]  btrfs_clean_one_deleted_snapshot+0xb7/0x100 [btrfs]
[90257.301600]  cleaner_kthread+0x14a/0x180 [btrfs]
[90257.301603]  kthread+0x125/0x140
[90257.301616]  ? __btree_submit_bio_start+0x20/0x20 [btrfs]
[90257.301617]  ? kthread_create_on_node+0x70/0x70
[90257.301618]  ? kthread_create_on_node+0x70/0x70
[90257.301620]  ret_from_fork+0x25/0x30
[90861.426463] INFO: task btrfs-cleaner:226 blocked for more than 120
seconds.
[90861.426470]       Not tainted 4.13.0-041300rc6-generic #201708201831
[90861.426472] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[90861.426475] btrfs-cleaner   D    0   226      2 0x00000000
[90861.426521] Call Trace:
[90861.426533]  __schedule+0x28b/0x890
[90861.426580]  ? btrfs_defrag_file+0x4cc/0xf70 [btrfs]
[90861.426587]  schedule+0x36/0x80
[90861.426601]  wait_current_trans+0xd8/0x110 [btrfs]
[90861.426605]  ? wait_woken+0x80/0x80
[90861.426619]  start_transaction+0x33a/0x410 [btrfs]
[90861.426633]  btrfs_start_transaction+0x1e/0x20 [btrfs]
[90861.426645]  btrfs_drop_snapshot+0x90/0x890 [btrfs]
[90861.426657]  ? btrfs_delete_unused_bgs+0x36/0x3c0 [btrfs]
[90861.426671]  btrfs_clean_one_deleted_snapshot+0xb7/0x100 [btrfs]
[90861.426685]  cleaner_kthread+0x14a/0x180 [btrfs]
[90861.426687]  kthread+0x125/0x140
[90861.426701]  ? __btree_submit_bio_start+0x20/0x20 [btrfs]
[90861.426702]  ? kthread_create_on_node+0x70/0x70
[90861.426703]  ? kthread_create_on_node+0x70/0x70
[90861.426705]  ret_from_fork+0x25/0x30
[155558.649828] SGI XFS with ACLs, security attributes, realtime, no
debug enabled
[155558.791963] JFS: nTxBlock = 8192, nTxLock = 65536
[155558.996429] ntfs: driver 2.1.32 [Flags: R/O MODULE].
[155559.351392] QNX4 filesystem 0.2.3 registered.
root@WVK-Storage:/srv/samba/profile/muenker# uname -a
Linux WVK-Storage 4.13.0-041300rc6-generic #201708201831 SMP Sun Aug 20
22:32:57 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
 14552   1373 0x00000000
[89653.177369] Call Trace:
[89653.177370]  __schedule+0x28b/0x890
[89653.177385]  ? ulist_add_merge+0xac/0x130 [btrfs]
[89653.177387]  schedule+0x36/0x80
[89653.177400]  wait_current_trans+0xd8/0x110 [btrfs]
[89653.177402]  ? wait_woken+0x80/0x80
[89653.177416]  start_transaction+0x33a/0x410 [btrfs]
[89653.177429]  btrfs_start_transaction+0x1e/0x20 [btrfs]
[89653.177444]  btrfs_mknod+0x5c/0x210 [btrfs]
[89653.177449]  vfs_mknod+0x141/0x1e0
[89653.177458]  unix_bind+0x12f/0x370
[89653.177467]  SYSC_bind+0x91/0x110
[89653.177469]  SyS_bind+0xe/0x10
[89653.177470]  entry_SYSCALL_64_fastpath+0x1e/0xa9
[89653.177471] RIP: 0033:0x7f7831092a57
[89653.177472] RSP: 002b:00007ffd9ddf8628 EFLAGS: 00000202 ORIG_RAX:
0000000000000031
[89653.177473] RAX: ffffffffffffffda RBX: 0000000000000008 RCX:
00007f7831092a57
[89653.177474] RDX: 000000000000006e RSI: 00007ffd9ddf8710 RDI:
0000000000000007
[89653.177475] RBP: 00007ffd9ddf86a8 R08: 00007f783134af18 R09:
0000000000000000
[89653.177476] R10: 00007f783134ab58 R11: 0000000000000202 R12:
00007ffd9ddf8710
[89653.177476] R13: 00007ffd9ddf8780 R14: 00007ffd9ddf86a8 R15:
0000557c3e398870
[89653.177478] INFO: task nmbd:14553 blocked for more than 120 seconds.
[89653.177494]       Not tainted 4.13.0-041300rc6-generic #201708201831
[89653.177496] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[89653.177497] nmbd            D    0 14553   1367 0x00000000
[89653.177498] Call Trace:
[89653.177500]  __schedule+0x28b/0x890
[89653.177502]  ? path_parentat+0x3e/0x80
[89653.177503]  schedule+0x36/0x80
[89653.177504]  rwsem_down_write_failed+0x245/0x380
[89653.177511]  call_rwsem_down_write_failed+0x17/0x30
[89653.177512]  ? call_rwsem_down_write_failed+0x17/0x30
[89653.177514]  down_write+0x2d/0x40
[89653.177515]  do_unlinkat+0x12a/0x310
[89653.177516]  ? vfs_write+0x132/0x1a0
[89653.177517]  SyS_unlink+0x16/0x20
[89653.177519]  entry_SYSCALL_64_fastpath+0x1e/0xa9
[89653.177520] RIP: 0033:0x7fa7ad1fe197
[89653.177521] RSP: 002b:00007ffc58804f18 EFLAGS: 00000206 ORIG_RAX:
0000000000000057
[89653.177522] RAX: ffffffffffffffda RBX: 0000000000000008 RCX:
00007fa7ad1fe197
[89653.177523] RDX: 00000000f397c580 RSI: 00007fa7ab2585a0 RDI:
00007ffc58804fb2
[89653.177523] RBP: 00007ffc58804f48 R08: 00007fa7ab25a1d8 R09:
0000000000000070
[89653.177524] R10: 00007fa7ad4c5b58 R11: 0000000000000206 R12:
00007ffc58804fb0
[89653.177525] R13: 00007ffc58805020 R14: 00007ffc58804f48 R15:
0000556380ada710
[89653.177527] INFO: task smbd:14554 blocked for more than 120 seconds.
[89653.177528]       Not tainted 4.13.0-041300rc6-generic #201708201831
[89653.177529] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[89653.177530] smbd            D    0 14554   1448 0x00000000
[89653.177531] Call Trace:
[89653.177533]  __schedule+0x28b/0x890
[89653.177534]  ? path_parentat+0x3e/0x80
[89653.177535]  schedule+0x36/0x80
[89653.177536]  rwsem_down_write_failed+0x245/0x380
[89653.177538]  call_rwsem_down_write_failed+0x17/0x30
[89653.177539]  ? call_rwsem_down_write_failed+0x17/0x30
[89653.177541]  down_write+0x2d/0x40
[89653.177542]  do_unlinkat+0x12a/0x310
[89653.177543]  ? vfs_write+0x132/0x1a0
[89653.177544]  SyS_unlink+0x16/0x20
[89653.177546]  entry_SYSCALL_64_fastpath+0x1e/0xa9
[89653.177547] RIP: 0033:0x7f9244845197
[89653.177547] RSP: 002b:00007ffc3a9fed38 EFLAGS: 00000206 ORIG_RAX:
0000000000000057
[89653.177549] RAX: ffffffffffffffda RBX: 0000000000000008 RCX:
00007f9244845197
[89653.177549] RDX: 0000000018db58f0 RSI: 00007f9243d105a0 RDI:
00007ffc3a9fedd2
[89653.177550] RBP: 00007ffc3a9fed68 R08: 00007f9244b0cbb8 R09:
0000000000000070
[89653.177551] R10: 00007f9244b0cb58 R11: 0000000000000206 R12:
00007ffc3a9fedd0
[89653.177551] R13: 00007ffc3a9fee40 R14: 00007ffc3a9fed68 R15:
00005629db2ab6e0
[90257.301402] INFO: task btrfs-cleaner:226 blocked for more than 120
seconds.
[90257.301415]       Not tainted 4.13.0-041300rc6-generic #201708201831
[90257.301417] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[90257.301420] btrfs-cleaner   D    0   226      2 0x00000000
[90257.301424] Call Trace:
[90257.301438]  __schedule+0x28b/0x890
[90257.301485]  ? btrfs_defrag_file+0x4cc/0xf70 [btrfs]
[90257.301488]  schedule+0x36/0x80
[90257.301510]  wait_current_trans+0xd8/0x110 [btrfs]
[90257.301514]  ? wait_woken+0x80/0x80
[90257.301534]  start_transaction+0x33a/0x410 [btrfs]
[90257.301548]  btrfs_start_transaction+0x1e/0x20 [btrfs]
[90257.301560]  btrfs_drop_snapshot+0x90/0x890 [btrfs]
[90257.301573]  ? btrfs_delete_unused_bgs+0x36/0x3c0 [btrfs]
[90257.301587]  btrfs_clean_one_deleted_snapshot+0xb7/0x100 [btrfs]
[90257.301600]  cleaner_kthread+0x14a/0x180 [btrfs]
[90257.301603]  kthread+0x125/0x140
[90257.301616]  ? __btree_submit_bio_start+0x20/0x20 [btrfs]
[90257.301617]  ? kthread_create_on_node+0x70/0x70
[90257.301618]  ? kthread_create_on_node+0x70/0x70
[90257.301620]  ret_from_fork+0x25/0x30
[90861.426463] INFO: task btrfs-cleaner:226 blocked for more than 120
seconds.
[90861.426470]       Not tainted 4.13.0-041300rc6-generic #201708201831
[90861.426472] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[90861.426475] btrfs-cleaner   D    0   226      2 0x00000000
[90861.426521] Call Trace:
[90861.426533]  __schedule+0x28b/0x890
[90861.426580]  ? btrfs_defrag_file+0x4cc/0xf70 [btrfs]
[90861.426587]  schedule+0x36/0x80
[90861.426601]  wait_current_trans+0xd8/0x110 [btrfs]
[90861.426605]  ? wait_woken+0x80/0x80
[90861.426619]  start_transaction+0x33a/0x410 [btrfs]
[90861.426633]  btrfs_start_transaction+0x1e/0x20 [btrfs]
[90861.426645]  btrfs_drop_snapshot+0x90/0x890 [btrfs]
[90861.426657]  ? btrfs_delete_unused_bgs+0x36/0x3c0 [btrfs]
[90861.426671]  btrfs_clean_one_deleted_snapshot+0xb7/0x100 [btrfs]
[90861.426685]  cleaner_kthread+0x14a/0x180 [btrfs]
[90861.426687]  kthread+0x125/0x140
[90861.426701]  ? __btree_submit_bio_start+0x20/0x20 [btrfs]
[90861.426702]  ? kthread_create_on_node+0x70/0x70
[90861.426703]  ? kthread_create_on_node+0x70/0x70
[90861.426705]  ret_from_fork+0x25/0x30
[155558.649828] SGI XFS with ACLs, security attributes, realtime, no
debug enabled
[155558.791963] JFS: nTxBlock = 8192, nTxLock = 65536
[155558.996429] ntfs: driver 2.1.32 [Flags: R/O MODULE].
[155559.351392] QNX4 filesystem 0.2.3 registered.
root@WVK-Storage:/srv/samba/profile/muenker# uname -a
Linux WVK-Storage 4.13.0-041300rc6-generic #201708201831 SMP Sun Aug 20
22:32:57 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux