sysrq: Show Blocked State
  task                        PC stack   pid father
systemd-journal D    0   813      1 0x00004320
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 schedule_timeout+0x299/0x3d0
 io_schedule_timeout+0x19/0x40
 wait_for_common_io.constprop.0+0xcf/0x150
 ? wake_up_q+0x60/0x60
 write_all_supers+0x87f/0x940 [btrfs]
 btrfs_sync_log+0x71b/0x9f0 [btrfs]
 ? dput+0xc9/0x2d0
 btrfs_sync_file+0x364/0x460 [btrfs]
 do_fsync+0x38/0x70
 __x64_sys_fsync+0x10/0x20
 do_syscall_64+0x5f/0x1c0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fb9ea0f5063
Code: Bad RIP value.
RSP: 002b:00007ffe7a903460 EFLAGS: 00000293 ORIG_RAX: 000000000000004a
RAX: ffffffffffffffda RBX: 000055dcf1138000 RCX: 00007fb9ea0f5063
RDX: 00007fb9ea20e000 RSI: 000055dcf112ccf0 RDI: 0000000000000032
RBP: 0000000000000001 R08: 0000000000000000 R09: 00007ffe7a9035b8
R10: 00007fb9e9ef1928 R11: 0000000000000293 R12: 00007ffe7a9035b8
R13: 00007ffe7a9035b0 R14: 000055dcf1138000 R15: 00007ffe7a903c30
kworker/u65:0   D    0 2639624      2 0x80004080
Workqueue: events_unbound btrfs_async_reclaim_metadata_space [btrfs]
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 schedule_timeout+0x1cf/0x3d0
 ? collect_expired_timers+0xb0/0xb0
 flush_space+0x55c/0x710 [btrfs]
 btrfs_async_reclaim_metadata_space+0xc4/0x4a0 [btrfs]
 ? __schedule+0x287/0x6d0
 process_one_work+0x1d1/0x3a0
 worker_thread+0x4a/0x3d0
 kthread+0xfb/0x130
 ? process_one_work+0x3a0/0x3a0
 ? kthread_park+0x80/0x80
 ret_from_fork+0x35/0x40
ld.gold         D    0 2641810 2641809 0x00004080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_block_rsv_add+0x1f/0x50 [btrfs]
 start_transaction+0x2c2/0x490 [btrfs]
 btrfs_dirty_inode+0x9d/0xd0 [btrfs]
 file_update_time+0xfd/0x150
 btrfs_page_mkwrite+0xfe/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? call_function_single_interrupt+0xa/0x20
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x55aae1b5f2a6
Code: Bad RIP value.
RSP: 002b:00007ffcbe8b0ba0 EFLAGS: 00010202
RAX: 00000000001efc68 RBX: 000000490000000a RCX: 000055aae9fb8738
RDX: 00000000ffffffff RSI: 0000000000000000 RDI: 000000000000003a
RBP: 0000000000000000 R08: 00007f76bd4a58e0 R09: 0000000000006efb
R10: 0000000000211722 R11: 0000000000000000 R12: 00007f76bd4a58e0
R13: 00007ffcbe8b0e90 R14: 000055aae277d8c0 R15: 00007f7598f63fff
ld.gold         D    0 2641821 2641820 0x00000080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_delalloc_reserve_metadata+0x13b/0x3d0 [btrfs]
 btrfs_delalloc_reserve_space+0x33/0x70 [btrfs]
 ? preempt_count_add+0x49/0xa0
 btrfs_page_mkwrite+0x86/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? retint_kernel+0x1b/0x1b
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x55f573e95077
Code: Bad RIP value.
RSP: 002b:00007ffe2ccea900 EFLAGS: 00010202
RAX: 00000000008be59b RBX: 0000004700000001 RCX: 000055f57408d6d0
RDX: 0000000000001db3 RSI: 000055f578368c60 RDI: 000055f578369808
RBP: 0000000000000000 R08: 00007f0933052450 R09: 0000000000000000
R10: 0000000000000571 R11: 000055f59222b2b0 R12: 00007f0933052450
R13: 00007ffe2cceabf0 R14: 000055f5764497b0 R15: 00007f08359d4ffa
ld.gold         D    0 2641848 2641847 0x00000080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_delalloc_reserve_metadata+0x13b/0x3d0 [btrfs]
 btrfs_delalloc_reserve_space+0x33/0x70 [btrfs]
 ? preempt_count_add+0x49/0xa0
 btrfs_page_mkwrite+0x86/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x562b3c9c12a6
Code: Bad RIP value.
RSP: 002b:00007ffd87726e70 EFLAGS: 00010206
RAX: 0000000000257177 RBX: 0000002d0000000a RCX: 0000000000159df8
RDX: 00000000ffffffff RSI: 0000562b420028f0 RDI: 0000562b42003228
RBP: 0000000000000000 R08: 00007f0b5724bb88 R09: 00000000000097d9
R10: 0000000000159df8 R11: 0000562b5ac58440 R12: 00007f0b5724bb88
R13: 00007ffd87727160 R14: 0000562b3ea272a0 R15: 00007f0a44d83ffe
ld.gold         D    0 2641962 2641961 0x00000080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_delalloc_reserve_metadata+0x13b/0x3d0 [btrfs]
 btrfs_delalloc_reserve_space+0x33/0x70 [btrfs]
 ? preempt_count_add+0x49/0xa0
 btrfs_page_mkwrite+0x86/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? apic_timer_interrupt+0xa/0x20
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7efd1ac4286d
Code: Bad RIP value.
RSP: 002b:00007ffc00e02128 EFLAGS: 00010283
RAX: 00007efc39d70fe0 RBX: 00005610f1bc73b0 RCX: 00005610f1b44950
RDX: 000000000000003b RSI: 00005610f1bc6ecc RDI: 00007efc39d70fe0
RBP: 00007efc3726cd0e R08: 0000000000000002 R09: 00007efc3a1199d0
R10: 0000000000000018 R11: 00007efc3a119a52 R12: 00005610dd134a60
R13: 00005610ebf8ff00 R14: 00005610dbc754c0 R15: 000000006e81fd0e
ld.gold         D    0 2641965 2641964 0x00000080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_delalloc_reserve_metadata+0x13b/0x3d0 [btrfs]
 btrfs_delalloc_reserve_space+0x33/0x70 [btrfs]
 ? preempt_count_add+0x49/0xa0
 btrfs_page_mkwrite+0x86/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 ? pmd_devmap_trans_unstable+0x84/0xa0
 __handle_mm_fault+0xc24/0x15d0
 ? common_interrupt+0xa/0xf
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7fa4e2def82f
Code: Bad RIP value.
RSP: 002b:00007ffd13044818 EFLAGS: 00010206
RAX: 00007fa40278efe3 RBX: 000056439eba33f0 RCX: 000056439eb8d160
RDX: 0000000000000049 RSI: 000056439eba2f89 RDI: 00007fa40278efe3
RBP: 00007fa3ffdeb174 R08: 0000000000000009 R09: 00007fa4045e3ab0
R10: 0000000000000018 R11: 00007fa4045e3b79 R12: 000056438a3f3990
R13: 00005643aa9271d0 R14: 00005643899b94c0 R15: 000000006e340174
ld.gold         D    0 2641973 2641972 0x00004080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_block_rsv_add+0x1f/0x50 [btrfs]
 start_transaction+0x2c2/0x490 [btrfs]
 btrfs_dirty_inode+0x9d/0xd0 [btrfs]
 file_update_time+0xfd/0x150
 btrfs_page_mkwrite+0xfe/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 ? __switch_to_asm+0x40/0x70
 __handle_mm_fault+0xc24/0x15d0
 ? __switch_to_asm+0x34/0x70
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7ff0c1bba82c
Code: Bad RIP value.
RSP: 002b:00007fff06b7fc98 EFLAGS: 00010206
RAX: 00007feff7144ffe RBX: 000056321180f150 RCX: 00005632117d8740
RDX: 0000000000000052 RSI: 000056321180ed2e RDI: 00007feff7144ffe
RBP: 00007feff470d225 R08: 0000000000000009 R09: 00007feff8b1ee70
R10: 0000000000000018 R11: 00007feff8b1eef9 R12: 00005632011b4e60
R13: 000056321ea3a070 R14: 00005631fff0c4c0 R15: 0000000063a2c225
ld.gold         D    0 2642000 2641999 0x00004080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_block_rsv_add+0x1f/0x50 [btrfs]
 start_transaction+0x2c2/0x490 [btrfs]
 btrfs_dirty_inode+0x9d/0xd0 [btrfs]
 file_update_time+0xfd/0x150
 btrfs_page_mkwrite+0xfe/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 ? __switch_to_asm+0x40/0x70
 __handle_mm_fault+0xc24/0x15d0
 ? __switch_to_asm+0x34/0x70
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7ffaa7beb6a6
Code: Bad RIP value.
RSP: 002b:00007ffc41ccac88 EFLAGS: 00010246
RAX: 00007ff9ca947fe4 RBX: 000056138dce4120 RCX: 000056138d541580
RDX: 0000000000000020 RSI: 00005613825744f6 RDI: 00007ff9ca947fe4
RBP: 00007ff9ca7db5e0 R08: 0000000000000008 R09: 00007ff9ca8acfe0
R10: 0000000000000000 R11: 00007ff9ca8ad0a8 R12: 00007ffc41ccb660
R13: 000056137677edd0 R14: 000056136d3e04c0 R15: 00000000001555e0
ld.gold         D    0 2642009 2642008 0x00004080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_block_rsv_add+0x1f/0x50 [btrfs]
 start_transaction+0x2c2/0x490 [btrfs]
 btrfs_dirty_inode+0x9d/0xd0 [btrfs]
 file_update_time+0xfd/0x150
 btrfs_page_mkwrite+0xfe/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? call_function_single_interrupt+0xa/0x20
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7f1e8c8b9837
Code: Bad RIP value.
RSP: 002b:00007ffe53b06028 EFLAGS: 00010206
RAX: 00007f1da3992fc8 RBX: 0000558037f0e7a0 RCX: 0000558037f51540
RDX: 0000000000000045 RSI: 0000558037f0e386 RDI: 00007f1da3992fc8
RBP: 00007f1da0e9bdda R08: 0000000000000001 R09: 00007f1da3992e50
R10: 0000000000000018 R11: 00007f1da3992f11 R12: 0000558023ea00b0
R13: 0000558046bf9bd0 R14: 0000558021ef14c0 R15: 00000000728cedda
ld.gold         D    0 2642031 2642030 0x00000080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_delalloc_reserve_metadata+0x13b/0x3d0 [btrfs]
 btrfs_delalloc_reserve_space+0x33/0x70 [btrfs]
 ? preempt_count_add+0x49/0xa0
 btrfs_page_mkwrite+0x86/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? common_interrupt+0xa/0xf
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7fc64b70082c
Code: Bad RIP value.
RSP: 002b:00007fffdbb6a9e8 EFLAGS: 00010206
RAX: 00007fc56b5ecff3 RBX: 0000559eb4301690 RCX: 0000559eb42da650
RDX: 0000000000000061 RSI: 0000559eb43012a9 RDI: 00007fc56b5ecff3
RBP: 00007fc5686583d9 R08: 000000000000000b R09: 00007fc569452540
R10: 0000000000000018 R11: 00007fc5694525cb R12: 0000559e9e13df50
R13: 0000559ead6c0c10 R14: 0000559e9b99d4c0 R15: 000000006e3983d9
ld.gold         D    0 2642037 2642036 0x00004080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_block_rsv_add+0x1f/0x50 [btrfs]
 start_transaction+0x2c2/0x490 [btrfs]
 btrfs_dirty_inode+0x9d/0xd0 [btrfs]
 file_update_time+0xfd/0x150
 btrfs_page_mkwrite+0xfe/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? reschedule_interrupt+0xa/0x20
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x55888b78a077
Code: Bad RIP value.
RSP: 002b:00007ffe78ec2f40 EFLAGS: 00010206
RAX: 0000000000a18cf9 RBX: 0000000200000001 RCX: 000055888b9826d0
RDX: 0000000000002aa9 RSI: 0000558898f24620 RDI: 0000558898f24b40
RBP: 0000000000000000 R08: 00007fd8bf217ff0 R09: 0000000000000000
R10: 0000000000000052 R11: 0000000000000000 R12: 00007fd8bf217ff0
R13: 00007ffe78ec3230 R14: 000055888cfaa430 R15: 00007fd89b08eff9
ld.gold         D    0 2642067 2642066 0x00000080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_delalloc_reserve_metadata+0x13b/0x3d0 [btrfs]
 btrfs_delalloc_reserve_space+0x33/0x70 [btrfs]
 ? preempt_count_add+0x49/0xa0
 btrfs_page_mkwrite+0x86/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 ? balance_dirty_pages_ratelimited+0x102/0x4c0
 __handle_mm_fault+0xc24/0x15d0
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7fb37fd5d82c
Code: Bad RIP value.
RSP: 002b:00007ffeebd67148 EFLAGS: 00010206
RAX: 00007fb29a80aff5 RBX: 000055ac5ed5cf20 RCX: 000055ac5e9b2e80
RDX: 0000000000000073 RSI: 000055ac5ed5cbf0 RDI: 00007fb29a80aff5
RBP: 00007fb297eaf025 R08: 0000000000000005 R09: 00007fb29a80af20
R10: 0000000000000018 R11: 00007fb29a80afe5 R12: 000055ac4b1ca330
R13: 000055ac6cd66150 R14: 000055ac489b04c0 R15: 0000000070a57025
ld.gold         D    0 2642097 2642096 0x00004080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_block_rsv_add+0x1f/0x50 [btrfs]
 start_transaction+0x2c2/0x490 [btrfs]
 btrfs_dirty_inode+0x9d/0xd0 [btrfs]
 file_update_time+0xfd/0x150
 btrfs_page_mkwrite+0xfe/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? call_function_single_interrupt+0xa/0x20
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7f10f565284a
Code: Bad RIP value.
RSP: 002b:00007ffc47768f28 EFLAGS: 00010206
RAX: 00007f1009e44fe0 RBX: 000055f688612ef0 RCX: 000055f6881c8db0
RDX: 000000000000005e RSI: 000055f688612560 RDI: 00007f1009e44fe0
RBP: 00007f1008423551 R08: 0000000000000005 R09: 00007f10088fc020
R10: 0000000000000018 R11: 00007f10088fc0a5 R12: 000055f67ca3db00
R13: 000055f68d03d330 R14: 000055f67ab654c0 R15: 00000000732d4551
ld.gold         D    0 2642196 2642195 0x00004080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_block_rsv_add+0x1f/0x50 [btrfs]
 start_transaction+0x2c2/0x490 [btrfs]
 btrfs_dirty_inode+0x9d/0xd0 [btrfs]
 file_update_time+0xfd/0x150
 btrfs_page_mkwrite+0xfe/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? call_function_single_interrupt+0xa/0x20
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x564bdcf91077
Code: Bad RIP value.
RSP: 002b:00007ffe08e69ce0 EFLAGS: 00010206
RAX: 00000000007938e4 RBX: 0000000200000001 RCX: 0000564bdd1896d0
RDX: 0000000000000944 RSI: 0000564be413f3e0 RDI: 0000564be413f820
RBP: 0000000000000000 R08: 00007ff4872591f8 R09: 0000000000000000
R10: 0000000000464620 R11: 00007ff49e4a5020 R12: 00007ff4872591f8
R13: 00007ffe08e69fd0 R14: 0000564bde678620 R15: 00007ff448c0effa
ld.gold         D    0 2642200 2642199 0x00004080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_block_rsv_add+0x1f/0x50 [btrfs]
 start_transaction+0x2c2/0x490 [btrfs]
 btrfs_dirty_inode+0x9d/0xd0 [btrfs]
 file_update_time+0xfd/0x150
 btrfs_page_mkwrite+0xfe/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7f368db8882c
Code: Bad RIP value.
RSP: 002b:00007ffc31920bc8 EFLAGS: 00010206
RAX: 00007f35c24faffe RBX: 0000558b013aac80 RCX: 0000558b00cabe60
RDX: 0000000000000045 RSI: 0000558b013aa8e2 RDI: 00007f35c24faffe
RBP: 00007f35c02ad6cb R08: 000000000000000e R09: 00007f35c4588290
R10: 0000000000000018 R11: 00007f35c458831e R12: 0000558af57ddfb0
R13: 0000558b0e818970 R14: 0000558af4bd54c0 R15: 0000000063c166cb
ld.gold         D    0 2642208 2642207 0x00000080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_delalloc_reserve_metadata+0x13b/0x3d0 [btrfs]
 btrfs_delalloc_reserve_space+0x33/0x70 [btrfs]
 ? preempt_count_add+0x49/0xa0
 btrfs_page_mkwrite+0x86/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? apic_timer_interrupt+0xa/0x20
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7f5b4ef8582f
Code: Bad RIP value.
RSP: 002b:00007fffe29fcf18 EFLAGS: 00010206
RAX: 00007f5a896eafee RBX: 000056165b4f1120 RCX: 000056165acfdf60
RDX: 0000000000000043 RSI: 000056165b4f0d07 RDI: 00007f5a896eafee
RBP: 00007f5a88d6df1c R08: 000000000000000a R09: 00007f5a8d86a020
R10: 0000000000000018 R11: 00007f5a8d86a0ea R12: 00005616582e5060
R13: 0000561677551fa0 R14: 0000561655cb04c0 R15: 00000000600fcf1c
ld.gold         D    0 2642311 2642310 0x00000080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_delalloc_reserve_metadata+0x13b/0x3d0 [btrfs]
 btrfs_delalloc_reserve_space+0x33/0x70 [btrfs]
 ? preempt_count_add+0x49/0xa0
 btrfs_page_mkwrite+0x86/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? call_function_single_interrupt+0xa/0x20
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7fbbb8c7e833
Code: Bad RIP value.
RSP: 002b:00007ffc72cf1cd8 EFLAGS: 00010206
RAX: 00007fbad56b1fd9 RBX: 0000558a9f755ad0 RCX: 0000558a9ee9d610
RDX: 000000000000007a RSI: 0000558a9f75584f RDI: 00007fbad56b1fd9
RBP: 00007fbad01bdbb6 R08: 0000000000000008 R09: 00007fbad0d1e3b0
R10: 0000000000000018 R11: 00007fbad0d1e478 R12: 0000558a7c1539c0
R13: 0000558aab55d250 R14: 0000558a7a2b54c0 R15: 0000000070f77bb6
ld.gold         D    0 2642401 2642400 0x00004080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_block_rsv_add+0x1f/0x50 [btrfs]
 start_transaction+0x2c2/0x490 [btrfs]
 btrfs_dirty_inode+0x9d/0xd0 [btrfs]
 file_update_time+0xfd/0x150
 btrfs_page_mkwrite+0xfe/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 ? _raw_spin_lock+0x1e/0x30
 __handle_mm_fault+0xc24/0x15d0
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7f09391e1837
Code: Bad RIP value.
RSP: 002b:00007ffcd2fd1d58 EFLAGS: 00010202
RAX: 00007f0857802fc2 RBX: 000055bf2ac77580 RCX: 000055bf2a235310
RDX: 0000000000000041 RSI: 000055bf2ac772ca RDI: 00007f0857802fc2
RBP: 00007f0856a604be R08: 000000000000000b R09: 00007f085791da50
R10: 0000000000000018 R11: 00007f085791dadb R12: 000055bf25b5fe60
R13: 000055bf38062fa0 R14: 000055bf23b6e4c0 R15: 000000006deed4be
ld.gold         D    0 2642583 2642582 0x00000080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_delalloc_reserve_metadata+0x13b/0x3d0 [btrfs]
 btrfs_delalloc_reserve_space+0x33/0x70 [btrfs]
 ? preempt_count_add+0x49/0xa0
 btrfs_page_mkwrite+0x86/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? apic_timer_interrupt+0xa/0x20
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7f02b4dc882c
Code: Bad RIP value.
RSP: 002b:00007ffef5f1e4f8 EFLAGS: 00010202
RAX: 00007f01d4765ff6 RBX: 0000558be0543f10 RCX: 0000558bdf82dde0
RDX: 000000000000004d RSI: 0000558be0543ad7 RDI: 00007f01d4765ff6
RBP: 00007f01d23fd21e R08: 000000000000000f R09: 00007f01d2e7f4e0
R10: 0000000000000018 R11: 00007f01d2e7f56f R12: 0000558bd2da5480
R13: 0000558bf0e8a5a0 R14: 0000558bd1a524c0 R15: 000000006e02921e
ld.gold         D    0 2642587 2642586 0x00000080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_delalloc_reserve_metadata+0x13b/0x3d0 [btrfs]
 btrfs_delalloc_reserve_space+0x33/0x70 [btrfs]
 ? preempt_count_add+0x49/0xa0
 btrfs_page_mkwrite+0x86/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? call_function_single_interrupt+0xa/0x20
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x55a9f5c772a6
Code: Bad RIP value.
RSP: 002b:00007fffcd1effb0 EFLAGS: 00010206
RAX: 000000000002c22d RBX: 000018ad0000000a RCX: 000055a9f6d028e0
RDX: 00000000ffffffff RSI: 0000000000000000 RDI: 0000000000000374
RBP: 0000000000000000 R08: 000055aa018f55c0 R09: 0000000000007807
R10: 0000000000034647 R11: 000055aa018f5600 R12: 00007f8f19814b10
R13: 00007fffcd1f02a0 R14: 000055a9f6447910 R15: 00007f8ec570dfff
ld.gold         D    0 2642624 2642623 0x00000080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_delalloc_reserve_metadata+0x13b/0x3d0 [btrfs]
 btrfs_delalloc_reserve_space+0x33/0x70 [btrfs]
 ? preempt_count_add+0x49/0xa0
 btrfs_page_mkwrite+0x86/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? __switch_to_asm+0x34/0x70
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7f78ebdca833
Code: Bad RIP value.
RSP: 002b:00007ffd01496728 EFLAGS: 00010206
RAX: 00007f78978b0fd3 RBX: 0000559cf8fc2160 RCX: 0000559cf8af1c50
RDX: 0000000000000064 RSI: 0000559cf8fc1cc4 RDI: 00007f78978b0fd3
RBP: 00007f789685d4a4 R08: 0000000000000009 R09: 00007f7896ec63f0
R10: 0000000000000018 R11: 00007f7896ec6479 R12: 0000559cf2ad4bd0
R13: 0000559cfa03b270 R14: 0000559cf20484c0 R15: 000000002901d4a4
ld.gold         D    0 2642746 2642745 0x00000080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_delalloc_reserve_metadata+0x13b/0x3d0 [btrfs]
 btrfs_delalloc_reserve_space+0x33/0x70 [btrfs]
 ? preempt_count_add+0x49/0xa0
 btrfs_page_mkwrite+0x86/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? __switch_to_asm+0x34/0x70
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7f757c028833
Code: Bad RIP value.
RSP: 002b:00007fffd5457918 EFLAGS: 00010206
RAX: 00007f74d738ffd4 RBX: 0000557487c5a7e0 RCX: 0000557487c1e2b0
RDX: 0000000000000051 RSI: 0000557487c5a465 RDI: 00007f74d738ffd4
RBP: 00007f74d5c5c6bc R08: 000000000000000d R09: 00007f74d6803f80
R10: 0000000000000018 R11: 00007f74d680404d R12: 000055747c9606f0
R13: 000055748c1866e0 R14: 000055747b7af4c0 R15: 0000000050d3d6bc
ld.gold         D    0 2642917 2642916 0x00004080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_block_rsv_add+0x1f/0x50 [btrfs]
 start_transaction+0x2c2/0x490 [btrfs]
 btrfs_dirty_inode+0x9d/0xd0 [btrfs]
 file_update_time+0xfd/0x150
 btrfs_page_mkwrite+0xfe/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? retint_kernel+0x1b/0x1b
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7fad106ad82c
Code: Bad RIP value.
RSP: 002b:00007ffe0a65f088 EFLAGS: 00010202
RAX: 00007facbd200ff4 RBX: 000055560e153800 RCX: 000055560dffc150
RDX: 0000000000000053 RSI: 000055560e153446 RDI: 00007facbd200ff4
RBP: 00007facbbd74bd0 R08: 0000000000000008 R09: 00007facbca38260
R10: 0000000000000018 R11: 00007facbca382e8 R12: 0000555605dd3a10
R13: 00005556130e0370 R14: 0000555604f884c0 R15: 00000000289c9bd0
ld.gold         D    0 2642932 2642931 0x00004080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_block_rsv_add+0x1f/0x50 [btrfs]
 start_transaction+0x2c2/0x490 [btrfs]
 btrfs_dirty_inode+0x9d/0xd0 [btrfs]
 file_update_time+0xfd/0x150
 btrfs_page_mkwrite+0xfe/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 ? __switch_to_asm+0x40/0x70
 __handle_mm_fault+0xc24/0x15d0
 ? __switch_to_asm+0x34/0x70
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x56514936c077
Code: Bad RIP value.
RSP: 002b:00007fff92c30720 EFLAGS: 00010206
RAX: 0000000000248355 RBX: 0000000200000001 RCX: 00005651495646d0
RDX: 00000000000028a5 RSI: 000056514d1036c0 RDI: 000056514d103bb0
RBP: 0000000000000000 R08: 00007f5e84b30f88 R09: 0000000000000000
R10: 0000000000141228 R11: 00007f5e8b9ef020 R12: 00007f5e84b30f88
R13: 00007fff92c30a10 R14: 000056514b0ea530 R15: 00007f5e7de0bffe
ld.gold         D    0 2642986 2642985 0x00004080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_block_rsv_add+0x1f/0x50 [btrfs]
 start_transaction+0x2c2/0x490 [btrfs]
 btrfs_dirty_inode+0x9d/0xd0 [btrfs]
 file_update_time+0xfd/0x150
 btrfs_page_mkwrite+0xfe/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 ? balance_dirty_pages_ratelimited+0x102/0x4c0
 __handle_mm_fault+0xc24/0x15d0
 ? call_function_single_interrupt+0xa/0x20
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7fb31f31d845
Code: Bad RIP value.
RSP: 002b:00007ffcc65fcdb8 EFLAGS: 00010202
RAX: 00007fb2eb8ecfb0 RBX: 000055829c2c1560 RCX: 000055829bc9e970
RDX: 0000000000000071 RSI: 000055829c2c1181 RDI: 00007fb2eb8ecfb0
RBP: 00007fb2ea8427c6 R08: 000000000000000e R09: 00007fb2eb237c60
R10: 0000000000000018 R11: 00007fb2eb237cee R12: 00005582945b6b80
R13: 0000558294bce4e0 R14: 00005582932844c0 R15: 0000000018d897c6
ld.gold         D    0 2643047 2643046 0x00000080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_delalloc_reserve_metadata+0x13b/0x3d0 [btrfs]
 btrfs_delalloc_reserve_space+0x33/0x70 [btrfs]
 ? preempt_count_add+0x49/0xa0
 btrfs_page_mkwrite+0x86/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? call_function_single_interrupt+0xa/0x20
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7f0949ff683b
Code: Bad RIP value.
RSP: 002b:00007ffde7650038 EFLAGS: 00010202
RAX: 00007f093a7c2fb6 RBX: 000055fd96f3f9e0 RCX: 000055fd970e0390
RDX: 0000000000000055 RSI: 000055fd96f3f660 RDI: 00007f093a7c2fb6
RBP: 00007f093a571ccb R08: 0000000000000006 R09: 00007f093a9d7200
R10: 0000000000000030 R11: 00007f093a9d7286 R12: 000055fd96c0c960
R13: 000055fd99abefc0 R14: 000055fd964094c0 R15: 000000000686fccb
ld.gold         D    0 2643073 2643072 0x00004080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_block_rsv_add+0x1f/0x50 [btrfs]
 start_transaction+0x2c2/0x490 [btrfs]
 btrfs_dirty_inode+0x9d/0xd0 [btrfs]
 file_update_time+0xfd/0x150
 btrfs_page_mkwrite+0xfe/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? call_function_single_interrupt+0xa/0x20
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7f4ae48c56a6
Code: Bad RIP value.
RSP: 002b:00007fff9fe4f068 EFLAGS: 00010246
RAX: 00007f4a52e5afe8 RBX: 00000000000571b8 RCX: 00000000000571b8
RDX: 0000000000000020 RSI: 000055bcf120d9b0 RDI: 00007f4a52e5afe8
RBP: 00007f4a52e03e28 R08: 0000000001808e28 R09: fffffffffffffff8
R10: 0000000000000028 R11: 00007f4a526f7cc8 R12: 000055bcf120d970
R13: 00007f4a52e5afe8 R14: 0000000000000020 R15: 0000000000000028
ld.gold         D    0 2643109 2643108 0x00000080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_delalloc_reserve_metadata+0x13b/0x3d0 [btrfs]
 btrfs_delalloc_reserve_space+0x33/0x70 [btrfs]
 ? preempt_count_add+0x49/0xa0
 btrfs_page_mkwrite+0x86/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 ? balance_dirty_pages_ratelimited+0x102/0x4c0
 __handle_mm_fault+0xc24/0x15d0
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50
RIP: 0033:0x7f378ef0e97e
Code: Bad RIP value.
RSP: 002b:00007ffd98efea08 EFLAGS: 00010283
RAX: 00007f3762f72fe8 RBX: 000055e849637c20 RCX: 000055e84963782b
RDX: 0000000000000038 RSI: 000055e849637803 RDI: 00007f3762f72fe8
RBP: 00007f376185e708 R08: 000000000000000e R09: 00007f3762f73010
R10: 0000000000000018 R11: 00007f3762f7305e R12: 000055e842669d10
R13: 000055e8480209d0 R14: 000055e8405944c0 R15: 0000000015763708
ld.gold         D    0 2643155 2643154 0x00004080
Call Trace:
 ? __schedule+0x27f/0x6d0
 schedule+0x43/0xd0
 wait_reserve_ticket+0x95/0x150 [btrfs]
 ? wait_woken+0x70/0x70
 btrfs_reserve_metadata_bytes+0x782/0x920 [btrfs]
 btrfs_block_rsv_add+0x1f/0x50 [btrfs]
 start_transaction+0x2c2/0x490 [btrfs]
 btrfs_dirty_inode+0x9d/0xd0 [btrfs]
 file_update_time+0xfd/0x150
 btrfs_page_mkwrite+0xfe/0x4e0 [btrfs]
 ? lock_page_memcg+0x11/0x90
 do_page_mkwrite+0x31/0x90
 do_wp_page+0x2c6/0x660
 __handle_mm_fault+0xc24/0x15d0
 ? call_function_single_interrupt+0xa/0x20
 handle_mm_fault+0xce/0x1f0
 __do_page_fault+0x216/0x4f0
 do_page_fault+0x31/0x130
 page_fault+0x3e/0x50