handle_mm_fault+0x2f2/0x6eb mm/memory.c:4095 __do_page_fault+0x45d/0xb60 arch/x86/mm/fault.c:1425 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1104 RIP: 0064:0x240a0f0 RSP: ec8b8f10:0000000002409c80 EFLAGS: 00000000 INFO: task jbd2/sda1-8:75 blocked for more than 140 seconds. Not tainted 4.14.74+ #17 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. jbd2/sda1-8 D25112 75 2 0x80000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 jbd2_journal_commit_transaction+0x724/0x648c fs/jbd2/commit.c:437 kjournald2+0x244/0x820 fs/jbd2/journal.c:233 kthread+0x348/0x420 kernel/kthread.c:232 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:402 INFO: task kworker/0:3:4998 blocked for more than 140 seconds. Not tainted 4.14.74+ #17 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/0:3 D27424 4998 2 0x80000000 Workqueue: events linkwatch_event Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 linkwatch_event+0xa/0x50 net/core/link_watch.c:236 process_one_work+0x86e/0x15c0 kernel/workqueue.c:2114 worker_thread+0xdc/0x1000 kernel/workqueue.c:2248 kthread+0x348/0x420 kernel/kthread.c:232 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:402 INFO: task syz-executor1:8574 blocked for more than 140 seconds. Not tainted 4.14.74+ #17 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor1 D27544 8574 5546 0x80000002 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 ip_mc_drop_socket+0x81/0x220 net/ipv4/igmp.c:2644 inet_release+0x54/0x1c0 net/ipv4/af_inet.c:430 __sock_release+0xce/0x250 net/socket.c:602 sock_close+0x15/0x20 net/socket.c:1138 __fput+0x25e/0x6f0 fs/file_table.c:210 task_work_run+0x116/0x190 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0x8f8/0x2800 kernel/exit.c:865 do_group_exit+0x100/0x2e0 kernel/exit.c:968 get_signal+0x4e5/0x1470 kernel/signal.c:2348 do_signal+0x8f/0x1660 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x116/0x150 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:267 [inline] do_syscall_64+0x35d/0x4b0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457579 RSP: 002b:00007efe20bfccf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000072bfa8 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000072bfa8 RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000072bfac R13: 00007ffe404aca6f R14: 00007efe20bfd9c0 R15: 0000000000000001 INFO: task syz-executor3:13875 blocked for more than 140 seconds. Not tainted 4.14.74+ #17 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D27544 13875 1850 0x80000002 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 ip_mc_drop_socket+0x81/0x220 net/ipv4/igmp.c:2644 inet_release+0x54/0x1c0 net/ipv4/af_inet.c:430 __sock_release+0xce/0x250 net/socket.c:602 sock_close+0x15/0x20 net/socket.c:1138 __fput+0x25e/0x6f0 fs/file_table.c:210 task_work_run+0x116/0x190 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0x8f8/0x2800 kernel/exit.c:865 do_group_exit+0x100/0x2e0 kernel/exit.c:968 get_signal+0x4e5/0x1470 kernel/signal.c:2348 do_signal+0x8f/0x1660 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x116/0x150 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:267 [inline] do_syscall_64+0x35d/0x4b0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457579 RSP: 002b:00007f644723bcf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000072bf08 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000072bf08 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000072bf0c R13: 00007fff8ad6fdaf R14: 00007f644723c9c0 R15: 0000000000000000 INFO: task kworker/u4:20:14060 blocked for more than 140 seconds. Not tainted 4.14.74+ #17 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u4:20 D21720 14060 2 0x80000000 Workqueue: netns cleanup_net Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 cleanup_net+0x151/0x880 net/core/net_namespace.c:452 process_one_work+0x86e/0x15c0 kernel/workqueue.c:2114 worker_thread+0xdc/0x1000 kernel/workqueue.c:2248 kthread+0x348/0x420 kernel/kthread.c:232 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:402 INFO: task syz-executor1:15291 blocked for more than 140 seconds. Not tainted 4.14.74+ #17 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor1 D27160 15291 5546 0x80000002 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 tun_detach drivers/net/tun.c:585 [inline] tun_chr_close+0x33/0x50 drivers/net/tun.c:2655 __fput+0x25e/0x6f0 fs/file_table.c:210 task_work_run+0x116/0x190 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0x8f8/0x2800 kernel/exit.c:865 do_group_exit+0x100/0x2e0 kernel/exit.c:968 get_signal+0x4e5/0x1470 kernel/signal.c:2348 do_signal+0x8f/0x1660 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x116/0x150 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:267 [inline] do_syscall_64+0x35d/0x4b0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457579 RSP: 002b:00007efe20c1dcf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000072bf08 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000072bf08 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000072bf0c R13: 00007ffe404aca6f R14: 00007efe20c1e9c0 R15: 0000000000000000 INFO: task syz-executor2:24480 blocked for more than 140 seconds. Not tainted 4.14.74+ #17 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D26072 24480 1848 0x80000002 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 kernfs_remove+0x17/0x30 fs/kernfs/dir.c:1329 sysfs_remove_dir+0xb1/0xf0 fs/sysfs/dir.c:97 kobject_del.part.1+0x35/0xe0 lib/kobject.c:575 kobject_del lib/kobject.c:571 [inline] kobject_cleanup lib/kobject.c:640 [inline] kobject_release lib/kobject.c:675 [inline] kref_put include/linux/kref.h:70 [inline] kobject_put+0x106/0x200 lib/kobject.c:692 net_rx_queue_update_kobjects+0x2df/0x440 net/core/net-sysfs.c:961 remove_queue_kobjects net/core/net-sysfs.c:1417 [inline] netdev_unregister_kobject+0x138/0x1d0 net/core/net-sysfs.c:1556 rollback_registered_many+0x643/0xac0 net/core/dev.c:7206 rollback_registered+0xe0/0x1a0 net/core/dev.c:7224 unregister_netdevice_queue+0x1a1/0x220 net/core/dev.c:8212 unregister_netdevice include/linux/netdevice.h:2427 [inline] __tun_detach+0xab2/0xd10 drivers/net/tun.c:576 tun_detach drivers/net/tun.c:586 [inline] tun_chr_close+0x40/0x50 drivers/net/tun.c:2655 __fput+0x25e/0x6f0 fs/file_table.c:210 task_work_run+0x116/0x190 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0x8f8/0x2800 kernel/exit.c:865 do_group_exit+0x100/0x2e0 kernel/exit.c:968 get_signal+0x4e5/0x1470 kernel/signal.c:2348 do_signal+0x8f/0x1660 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x116/0x150 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:267 [inline] do_syscall_64+0x35d/0x4b0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457579 RSP: 002b:00007f3ea8c51cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000072bf08 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000072bf08 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000072bf0c R13: 00007fff7f18696f R14: 00007f3ea8c529c0 R15: 0000000000000000 INFO: task syz-executor3:21625 blocked for more than 140 seconds. Not tainted 4.14.74+ #17 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D27440 21625 1850 0x80000002 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 tun_detach drivers/net/tun.c:585 [inline] tun_chr_close+0x33/0x50 drivers/net/tun.c:2655 __fput+0x25e/0x6f0 fs/file_table.c:210 task_work_run+0x116/0x190 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0x8f8/0x2800 kernel/exit.c:865 do_group_exit+0x100/0x2e0 kernel/exit.c:968 get_signal+0x4e5/0x1470 kernel/signal.c:2348 do_signal+0x8f/0x1660 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x116/0x150 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:267 [inline] do_syscall_64+0x35d/0x4b0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457579 RSP: 002b:00007f644723bcf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000072bf08 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000072bf08 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000072bf0c R13: 00007fff8ad6fdaf R14: 00007f644723c9c0 R15: 0000000000000000 INFO: task udevd:22207 blocked for more than 140 seconds. Not tainted 4.14.74+ #17 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D26920 22207 191 0x00000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 kernfs_iop_permission+0x4c/0x90 fs/kernfs/inode.c:301 do_inode_permission fs/namei.c:386 [inline] __inode_permission2+0x221/0x2b0 fs/namei.c:428 inode_permission2+0x2a/0x100 fs/namei.c:485 may_lookup fs/namei.c:1690 [inline] link_path_walk+0x7c9/0xf90 fs/namei.c:2070 path_lookupat.isra.10+0x1f0/0x890 fs/namei.c:2315 filename_lookup.part.18+0x177/0x370 fs/namei.c:2350 filename_lookup fs/namei.c:2343 [inline] user_path_at_empty+0x4b/0x80 fs/namei.c:2611 SYSC_readlinkat fs/stat.c:394 [inline] SyS_readlinkat+0xc7/0x2d0 fs/stat.c:382 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7fd5b8790577 RSP: 002b:00007ffd715008e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000059 RAX: ffffffffffffffda RBX: 0000000001bf6030 RCX: 00007fd5b8790577 RDX: 0000000000000400 RSI: 00007ffd715008f0 RDI: 00007ffd71500dd0 RBP: 0000000001cbcab0 R08: 7665642f7379732f R09: 7269762f73656369 R10: 6f6c622f6c617574 R11: 0000000000000246 R12: 00007ffd71500dd0 R13: 0000000000000400 R14: 0000000001bf6030 R15: 000000000000000b Showing all locks held in the system: 2 locks held by init/1: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 1 lock held by khungtaskd/23: #0: (tasklist_lock){.+.?}, at: [] debug_show_all_locks+0x74/0x20f kernel/locking/lockdep.c:4541 2 locks held by rsyslogd/1632: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 2 locks held by getty/1760: #0: (&tty->ldisc_sem){++++}, at: [] tty_ldisc_ref_wait+0x20/0x80 drivers/tty/tty_ldisc.c:275 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1ff/0x15e0 drivers/tty/n_tty.c:2142 3 locks held by kworker/0:3/4998: #0: ("events"){+.+.}, at: [] process_one_work+0x787/0x15c0 kernel/workqueue.c:2085 #1: ((linkwatch_work).work){+.+.}, at: [] process_one_work+0x7bf/0x15c0 kernel/workqueue.c:2089 #2: (rtnl_mutex){+.+.}, at: [] linkwatch_event+0xa/0x50 net/core/link_watch.c:236 2 locks held by syz-executor1/8574: #0: (&sb->s_type->i_mutex_key#8){+.+.}, at: [] inode_lock include/linux/fs.h:713 [inline] #0: (&sb->s_type->i_mutex_key#8){+.+.}, at: [] __sock_release+0x84/0x250 net/socket.c:601 #1: (rtnl_mutex){+.+.}, at: [] ip_mc_drop_socket+0x81/0x220 net/ipv4/igmp.c:2644 2 locks held by syz-executor3/13875: #0: (&sb->s_type->i_mutex_key#8){+.+.}, at: [] inode_lock include/linux/fs.h:713 [inline] #0: (&sb->s_type->i_mutex_key#8){+.+.}, at: [] __sock_release+0x84/0x250 net/socket.c:601 #1: (rtnl_mutex){+.+.}, at: [] ip_mc_drop_socket+0x81/0x220 net/ipv4/igmp.c:2644 4 locks held by kworker/u4:20/14060: #0: ("%s""netns"){+.+.}, at: [] process_one_work+0x787/0x15c0 kernel/workqueue.c:2085 #1: (net_cleanup_work){+.+.}, at: [] process_one_work+0x7bf/0x15c0 kernel/workqueue.c:2089 #2: (net_mutex){+.+.}, at: [] cleanup_net+0x14c/0x880 net/core/net_namespace.c:449 #3: (rtnl_mutex){+.+.}, at: [] cleanup_net+0x151/0x880 net/core/net_namespace.c:452 1 lock held by syz-executor1/15291: #0: (rtnl_mutex){+.+.}, at: [] tun_detach drivers/net/tun.c:585 [inline] #0: (rtnl_mutex){+.+.}, at: [] tun_chr_close+0x33/0x50 drivers/net/tun.c:2655 2 locks held by syz-executor2/24480: #0: (rtnl_mutex){+.+.}, at: [] tun_detach drivers/net/tun.c:585 [inline] #0: (rtnl_mutex){+.+.}, at: [] tun_chr_close+0x33/0x50 drivers/net/tun.c:2655 #1: (kernfs_mutex){+.+.}, at: [] kernfs_remove+0x17/0x30 fs/kernfs/dir.c:1329 3 locks held by kworker/1:0/16561: #0: ("%s"("ipv6_addrconf")){+.+.}, at: [] process_one_work+0x787/0x15c0 kernel/workqueue.c:2085 #1: ((addr_chk_work).work){+.+.}, at: [] process_one_work+0x7bf/0x15c0 kernel/workqueue.c:2089 #2: (rtnl_mutex){+.+.}, at: [] addrconf_verify_work+0xa/0x20 net/ipv6/addrconf.c:4432 1 lock held by syz-executor3/21625: #0: (rtnl_mutex){+.+.}, at: [] tun_detach drivers/net/tun.c:585 [inline] #0: (rtnl_mutex){+.+.}, at: [] tun_chr_close+0x33/0x50 drivers/net/tun.c:2655 2 locks held by udevd/21767: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 1 lock held by blkid/21768: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 2 locks held by udevd/21772: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 2 locks held by udevd/21776: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 2 locks held by udevd/21800: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 1 lock held by blkid/21803: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 1 lock held by blkid/21811: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 1 lock held by blkid/21813: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 2 locks held by udevd/21816: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 2 locks held by blkid/21825: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 2 locks held by udevd/21826: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 1 lock held by blkid/21837: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 1 lock held by blkid/21861: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 2 locks held by udevd/21867: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 1 lock held by blkid/21868: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 1 lock held by blkid/21876: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 2 locks held by udevd/21877: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 1 lock held by blkid/21882: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 1 lock held by blkid/21883: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 1 lock held by blkid/21896: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 2 locks held by udevd/21913: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 2 locks held by udevd/21916: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 1 lock held by blkid/21921: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 1 lock held by blkid/21931: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 1 lock held by blkid/21935: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 1 lock held by blkid/21941: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 2 locks held by udevd/21944: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 2 locks held by blkid/21948: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 2 locks held by udevd/21959: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 1 lock held by blkid/21963: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 1 lock held by blkid/21967: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 2 locks held by blkid/21971: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 1 lock held by blkid/21978: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 2 locks held by udevd/21983: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 1 lock held by blkid/21986: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 1 lock held by blkid/22025: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 1 lock held by blkid/22037: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 2 locks held by udevd/22041: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 2 locks held by blkid/22075: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 2 locks held by udevd/22082: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 2 locks held by udevd/22097: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 2 locks held by udevd/22098: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 1 lock held by blkid/22126: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 2 locks held by udevd/22139: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 2 locks held by blkid/22140: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 2 locks held by blkid/22146: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 1 lock held by blkid/22156: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 1 lock held by blkid/22158: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 1 lock held by blkid/22168: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 1 lock held by blkid/22179: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 2 locks held by udevd/22185: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 2 locks held by udevd/22191: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 2 locks held by udevd/22200: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (&ei->i_mmap_sem){++++}, at: [] ext4_filemap_fault+0x75/0xb0 fs/ext4/inode.c:6177 1 lock held by udevd/22207: #0: (kernfs_mutex){+.+.}, at: [] kernfs_iop_permission+0x4c/0x90 fs/kernfs/inode.c:301 ============================================= warn_alloc: 115 callbacks suppressed udevd: page allocation stalls for 120240ms, order:0, mode:0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null) CPU: 1 PID: 21790 Comm: udevd Not tainted 4.14.74+ #17 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x11b lib/dump_stack.c:53 warn_alloc.cold.35+0x9d/0x1b7 mm/page_alloc.c:3260 __alloc_pages_slowpath mm/page_alloc.c:4011 [inline] __alloc_pages_nodemask+0x1439/0x2300 mm/page_alloc.c:4222 __alloc_pages include/linux/gfp.h:461 [inline] __alloc_pages_node include/linux/gfp.h:474 [inline] alloc_pages_node include/linux/gfp.h:488 [inline] __page_cache_alloc include/linux/pagemap.h:226 [inline] page_cache_read mm/filemap.c:2286 [inline] filemap_fault+0xcdd/0x14a0 mm/filemap.c:2470 ext4_filemap_fault+0x7d/0xb0 fs/ext4/inode.c:6178 __do_fault+0x80/0x210 mm/memory.c:3194 do_read_fault mm/memory.c:3604 [inline] do_fault mm/memory.c:3704 [inline] handle_pte_fault mm/memory.c:3934 [inline] __handle_mm_fault+0xe04/0x23a0 mm/memory.c:4058 handle_mm_fault+0x2f2/0x6eb mm/memory.c:4095 __do_page_fault+0x45d/0xb60 arch/x86/mm/fault.c:1425 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1104 RIP: 714fb487:0x5 RSP: 1bf6030:0000000000625500 EFLAGS: 01d92e50 warn_alloc_show_mem: 9 callbacks suppressed Mem-Info: active_anon:1491603 inactive_anon:5155 isolated_anon:0 active_file:0 inactive_file:11 isolated_file:0 unevictable:209 dirty:0 writeback:0 unstable:0 slab_reclaimable:10321 slab_unreclaimable:62061 mapped:24786 shmem:836 pagetables:9653 bounce:0 free:5875 free_pcp:0 free_cma:0 Node 0 active_anon:5966412kB inactive_anon:20620kB active_file:0kB inactive_file:44kB unevictable:836kB isolated(anon):0kB isolated(file):0kB mapped:99144kB dirty:0kB writeback:0kB shmem:3344kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes DMA32 free:18152kB min:4792kB low:7868kB high:10944kB active_anon:3036428kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3079672kB mlocked:0kB kernel_stack:2272kB pagetables:12784kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3437 3437 Normal free:5348kB min:5480kB low:9000kB high:12520kB active_anon:2929984kB inactive_anon:20620kB active_file:0kB inactive_file:44kB unevictable:836kB writepending:0kB present:4718592kB managed:3521724kB mlocked:832kB kernel_stack:15008kB pagetables:25828kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 DMA32: 248*4kB (UM) 53*8kB (UM) 18*16kB (UME) 4*32kB (UE) 3*64kB (UM) 2*128kB (UE) 0*256kB 3*512kB (UME) 2*1024kB (UE) 2*2048kB (ME) 2*4096kB (M) = 18152kB Normal: 151*4kB (UMH) 55*8kB (UMH) 7*16kB (UMH) 11*32kB (UMH) 60*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5348kB 1095 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 315630 pages reserved udevd: page allocation stalls for 120140ms, order:0, mode:0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null) CPU: 0 PID: 21810 Comm: udevd Not tainted 4.14.74+ #17 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x11b lib/dump_stack.c:53 warn_alloc.cold.35+0x9d/0x1b7 mm/page_alloc.c:3260 __alloc_pages_slowpath mm/page_alloc.c:4011 [inline] __alloc_pages_nodemask+0x1439/0x2300 mm/page_alloc.c:4222 __alloc_pages include/linux/gfp.h:461 [inline] __alloc_pages_node include/linux/gfp.h:474 [inline] alloc_pages_node include/linux/gfp.h:488 [inline] __page_cache_alloc include/linux/pagemap.h:226 [inline] page_cache_read mm/filemap.c:2286 [inline] filemap_fault+0xcdd/0x14a0 mm/filemap.c:2470 ext4_filemap_fault+0x7d/0xb0 fs/ext4/inode.c:6178 __do_fault+0x80/0x210 mm/memory.c:3194 do_read_fault mm/memory.c:3604 [inline] do_fault mm/memory.c:3704 [inline] handle_pte_fault mm/memory.c:3934 [inline] __handle_mm_fault+0xe04/0x23a0 mm/memory.c:4058 handle_mm_fault+0x2f2/0x6eb mm/memory.c:4095 __do_page_fault+0x45d/0xb60 arch/x86/mm/fault.c:1425 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1104 RIP: 714fb487:0x5 RSP: 1bf6030:0000000000625500 EFLAGS: 01c00a10 blkid: page allocation stalls for 160200ms, order:0, mode:0x14280ca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO), nodemask=(null) CPU: 1 PID: 21875 Comm: blkid Not tainted 4.14.74+ #17 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x11b lib/dump_stack.c:53 warn_alloc.cold.35+0x9d/0x1b7 mm/page_alloc.c:3260 __alloc_pages_slowpath mm/page_alloc.c:4011 [inline] __alloc_pages_nodemask+0x1439/0x2300 mm/page_alloc.c:4222 __alloc_pages include/linux/gfp.h:461 [inline] __alloc_pages_node include/linux/gfp.h:474 [inline] alloc_pages_node include/linux/gfp.h:488 [inline] alloc_zeroed_user_highpage_movable include/linux/highmem.h:184 [inline] do_anonymous_page mm/memory.c:3127 [inline] handle_pte_fault mm/memory.c:3932 [inline] __handle_mm_fault+0xf2a/0x23a0 mm/memory.c:4058 handle_mm_fault+0x2f2/0x6eb mm/memory.c:4095 __do_page_fault+0x45d/0xb60 arch/x86/mm/fault.c:1425 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1104 RIP: 0064:0x23bf0f0 RSP: d19a7f10:00000000023bec80 EFLAGS: 00000000 blkid: page allocation stalls for 160120ms, order:0, mode:0x14280ca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO), nodemask=(null) CPU: 0 PID: 22194 Comm: blkid Not tainted 4.14.74+ #17 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x11b lib/dump_stack.c:53 warn_alloc.cold.35+0x9d/0x1b7 mm/page_alloc.c:3260 __alloc_pages_slowpath mm/page_alloc.c:4011 [inline] __alloc_pages_nodemask+0x1439/0x2300 mm/page_alloc.c:4222 __alloc_pages include/linux/gfp.h:461 [inline] __alloc_pages_node include/linux/gfp.h:474 [inline] alloc_pages_node include/linux/gfp.h:488 [inline] alloc_zeroed_user_highpage_movable include/linux/highmem.h:184 [inline] do_anonymous_page mm/memory.c:3127 [inline] handle_pte_fault mm/memory.c:3932 [inline] __handle_mm_fault+0xf2a/0x23a0 mm/memory.c:4058 handle_mm_fault+0x2f2/0x6eb mm/memory.c:4095 __do_page_fault+0x45d/0xb60 arch/x86/mm/fault.c:1425 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1104 RIP: 0064:0x24cf0f0 RSP: 71a37f10:00000000024cec80 EFLAGS: 00000000 blkid: page allocation stalls for 160150ms, order:0, mode:0x14280ca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO), nodemask=(null) CPU: 1 PID: 22158 Comm: blkid Not tainted 4.14.74+ #17 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x11b lib/dump_stack.c:53 warn_alloc.cold.35+0x9d/0x1b7 mm/page_alloc.c:3260 __alloc_pages_slowpath mm/page_alloc.c:4011 [inline] __alloc_pages_nodemask+0x1439/0x2300 mm/page_alloc.c:4222 __alloc_pages include/linux/gfp.h:461 [inline] __alloc_pages_node include/linux/gfp.h:474 [inline] alloc_pages_node include/linux/gfp.h:488 [inline] alloc_zeroed_user_highpage_movable include/linux/highmem.h:184 [inline] do_anonymous_page mm/memory.c:3127 [inline] handle_pte_fault mm/memory.c:3932 [inline] __handle_mm_fault+0xf2a/0x23a0 mm/memory.c:4058 handle_mm_fault+0x2f2/0x6eb mm/memory.c:4095 __do_page_fault+0x45d/0xb60 arch/x86/mm/fault.c:1425 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1104 RIP: 0064:0x9060f0 RSP: 8ce6cf10:0000000000905c80 EFLAGS: 00000000 blkid: page allocation stalls for 160160ms, order:0, mode:0x14280ca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO), nodemask=(null) CPU: 0 PID: 22073 Comm: blkid Not tainted 4.14.74+ #17 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x11b lib/dump_stack.c:53 warn_alloc.cold.35+0x9d/0x1b7 mm/page_alloc.c:3260 __alloc_pages_slowpath mm/page_alloc.c:4011 [inline] __alloc_pages_nodemask+0x1439/0x2300 mm/page_alloc.c:4222 __alloc_pages include/linux/gfp.h:461 [inline] __alloc_pages_node include/linux/gfp.h:474 [inline] alloc_pages_node include/linux/gfp.h:488 [inline] alloc_zeroed_user_highpage_movable include/linux/highmem.h:184 [inline] do_anonymous_page mm/memory.c:3127 [inline] handle_pte_fault mm/memory.c:3932 [inline] __handle_mm_fault+0xf2a/0x23a0 mm/memory.c:4058 handle_mm_fault+0x2f2/0x6eb mm/memory.c:4095 __do_page_fault+0x45d/0xb60 arch/x86/mm/fault.c:1425 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1104 RIP: 0064:0x7b30f0 RSP: 75fabf10:00000000007b2c80 EFLAGS: 00000000 blkid: page allocation stalls for 160130ms, order:0, mode:0x14280ca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO), nodemask=(null) CPU: 0 PID: 21985 Comm: blkid Not tainted 4.14.74+ #17 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x11b lib/dump_stack.c:53 warn_alloc.cold.35+0x9d/0x1b7 mm/page_alloc.c:3260 __alloc_pages_slowpath mm/page_alloc.c:4011 [inline] __alloc_pages_nodemask+0x1439/0x2300 mm/page_alloc.c:4222 __alloc_pages include/linux/gfp.h:461 [inline] __alloc_pages_node include/linux/gfp.h:474 [inline] alloc_pages_node include/linux/gfp.h:488 [inline] alloc_zeroed_user_highpage_movable include/linux/highmem.h:184 [inline] do_anonymous_page mm/memory.c:3127 [inline] handle_pte_fault mm/memory.c:3932 [inline] __handle_mm_fault+0xf2a/0x23a0 mm/memory.c:4058 handle_mm_fault+0x2f2/0x6eb mm/memory.c:4095 __do_page_fault+0x45d/0xb60 arch/x86/mm/fault.c:1425 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1104 RIP: 0064:0x17920f0 RSP: 613d7f10:0000000001791c80 EFLAGS: 00000000 blkid: page allocation stalls for 160150ms, order:0, mode:0x14280ca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO), nodemask=(null) CPU: 0 PID: 21903 Comm: blkid Not tainted 4.14.74+ #17 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x11b lib/dump_stack.c:53 warn_alloc.cold.35+0x9d/0x1b7 mm/page_alloc.c:3260 __alloc_pages_slowpath mm/page_alloc.c:4011 [inline] __alloc_pages_nodemask+0x1439/0x2300 mm/page_alloc.c:4222 __alloc_pages include/linux/gfp.h:461 [inline] __alloc_pages_node include/linux/gfp.h:474 [inline] alloc_pages_node include/linux/gfp.h:488 [inline] alloc_zeroed_user_highpage_movable include/linux/highmem.h:184 [inline] do_anonymous_page mm/memory.c:3127 [inline] handle_pte_fault mm/memory.c:3932 [inline] __handle_mm_fault+0xf2a/0x23a0 mm/memory.c:4058 handle_mm_fault+0x2f2/0x6eb mm/memory.c:4095 __do_page_fault+0x45d/0xb60 arch/x86/mm/fault.c:1425 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1104 RIP: 0064:0x25e80f0 RSP: b0d64f10:00000000025e7c80 EFLAGS: 00000000 blkid: page allocation stalls for 160160ms, order:0, mode:0x14280ca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO), nodemask=(null) CPU: 0 PID: 21813 Comm: blkid Not tainted 4.14.74+ #17 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x11b lib/dump_stack.c:53 warn_alloc.cold.35+0x9d/0x1b7 mm/page_alloc.c:3260 __alloc_pages_slowpath mm/page_alloc.c:4011 [inline] __alloc_pages_nodemask+0x1439/0x2300 mm/page_alloc.c:4222 __alloc_pages include/linux/gfp.h:461 [inline] __alloc_pages_node include/linux/gfp.h:474 [inline] alloc_pages_node include/linux/gfp.h:488 [inline] alloc_zeroed_user_highpage_movable include/linux/highmem.h:184 [inline] do_anonymous_page mm/memory.c:3127 [inline] handle_pte_fault mm/memory.c:3932 [inline] __handle_mm_fault+0xf2a/0x23a0 mm/memory.c:4058 handle_mm_fault+0x2f2/0x6eb mm/memory.c:4095 __do_page_fault+0x45d/0xb60 arch/x86/mm/fault.c:1425 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1104 RIP: 0064:0x136a0f0 RSP: d3f2df10:0000000001369c80 EFLAGS: 00000000 blkid: page allocation stalls for 160160ms, order:0, mode:0x14280ca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO), nodemask=(null) CPU: 0 PID: 21808 Comm: blkid Not tainted 4.14.74+ #17 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x11b lib/dump_stack.c:53 warn_alloc.cold.35+0x9d/0x1b7 mm/page_alloc.c:3260 __alloc_pages_slowpath mm/page_alloc.c:4011 [inline] __alloc_pages_nodemask+0x1439/0x2300 mm/page_alloc.c:4222 __alloc_pages include/linux/gfp.h:461 [inline] __alloc_pages_node include/linux/gfp.h:474 [inline] alloc_pages_node include/linux/gfp.h:488 [inline] alloc_zeroed_user_highpage_movable include/linux/highmem.h:184 [inline] do_anonymous_page mm/memory.c:3127 [inline] handle_pte_fault mm/memory.c:3932 [inline] __handle_mm_fault+0xf2a/0x23a0 mm/memory.c:4058 handle_mm_fault+0x2f2/0x6eb mm/memory.c:4095 __do_page_fault+0x45d/0xb60 arch/x86/mm/fault.c:1425 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1104 RIP: 0064:0x83c0f0 RSP: dd5bbf10:000000000083bc80 EFLAGS: 00000000 NMI backtrace for cpu 0 CPU: 0 PID: 23 Comm: khungtaskd Not tainted 4.14.74+ #17 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x11b lib/dump_stack.c:53 nmi_cpu_backtrace.cold.0+0x47/0x85 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x121/0x146 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:138 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:196 [inline] watchdog+0x574/0xa70 kernel/hung_task.c:252 kthread+0x348/0x420 kernel/kthread.c:232 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:402 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 21873 Comm: udevd Not tainted 4.14.74+ #17 task: ffff8801ce35af00 task.stack: ffff88017fe90000 RIP: 0010:__lock_is_held+0x98/0x200 kernel/locking/lockdep.c:3808 RSP: 0000:ffff88017fe97408 EFLAGS: 00000006 RAX: dffffc0000000000 RBX: ffff8801ce35b730 RCX: ffff8801ce35b728 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff8801ce35b740 RBP: ffff8801ce35af00 R08: 0000000000002190 R09: ffffffff9a4d5320 R10: ffff8801ce35b7a8 R11: 0000000000000001 R12: ffff8801da83b258 R13: ffff8801ce35b730 R14: ffff8801ce35af00 R15: 0000000000000000 FS: 00007fd5b90877a0(0000) GS:ffff8801db900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd5b879b943 CR3: 0000000178374003 CR4: 00000000001606a0 Call Trace: lock_is_held_type+0xb0/0x150 kernel/locking/lockdep.c:4029 lock_is_held include/linux/lockdep.h:437 [inline] list_lru_from_memcg_idx mm/list_lru.c:59 [inline] __list_lru_count_one mm/list_lru.c:172 [inline] list_lru_count_one+0x16e/0x1d0 mm/list_lru.c:182 list_lru_shrink_count include/linux/list_lru.h:117 [inline] super_cache_count+0x139/0x2a0 fs/super.c:143 do_shrink_slab mm/vmscan.c:328 [inline] shrink_slab.part.8+0x25c/0xa30 mm/vmscan.c:504 shrink_slab mm/vmscan.c:468 [inline] shrink_node+0x8c8/0xbf0 mm/vmscan.c:2665 shrink_zones mm/vmscan.c:2812 [inline] do_try_to_free_pages+0x349/0xde0 mm/vmscan.c:2874 try_to_free_pages+0x204/0x6b0 mm/vmscan.c:3080 __perform_reclaim mm/page_alloc.c:3593 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3614 [inline] __alloc_pages_slowpath mm/page_alloc.c:4022 [inline] __alloc_pages_nodemask+0xafb/0x2300 mm/page_alloc.c:4222 __alloc_pages include/linux/gfp.h:461 [inline] __alloc_pages_node include/linux/gfp.h:474 [inline] alloc_pages_node include/linux/gfp.h:488 [inline] __page_cache_alloc include/linux/pagemap.h:226 [inline] page_cache_read mm/filemap.c:2286 [inline] filemap_fault+0xcdd/0x14a0 mm/filemap.c:2470 ext4_filemap_fault+0x7d/0xb0 fs/ext4/inode.c:6178 __do_fault+0x80/0x210 mm/memory.c:3194 do_read_fault mm/memory.c:3604 [inline] do_fault mm/memory.c:3704 [inline] handle_pte_fault mm/memory.c:3934 [inline] __handle_mm_fault+0xe04/0x23a0 mm/memory.c:4058 handle_mm_fault+0x2f2/0x6eb mm/memory.c:4095 __do_page_fault+0x45d/0xb60 arch/x86/mm/fault.c:1425 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1104 RIP: 714fb487:0x5 RSP: 1bf6030:0000000000625500 EFLAGS: 01d92e50 Code: ae 30 08 00 00 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 65 01 00 00 4d 3b a6 40 08 00 00 4c 89 eb 0f 84 a6 00 00 00 48 8b 4c 24 10 <31> ed 49 bf 00 00 00 00 00 fc ff df 48 c1 e9 03 4a 8d 14 39 48