bisecting fixing commit since 34816d20f173a90389c8a7e641166d8ea9dce70a building syzkaller on e6b0d3140b98e8456fbd089d584e932e19257d94 testing commit 34816d20f173a90389c8a7e641166d8ea9dce70a with gcc (GCC) 10.2.1 20210217 kernel signature: 509e65a0c333249946868fd4ce178dc7785d6be7afc8f228dc7f56a33427edc5 all runs: crashed: INFO: task hung in sync_inodes_sb testing current HEAD 614124bea77e452aa6df7a8714e8bc820b489922 testing commit 614124bea77e452aa6df7a8714e8bc820b489922 with gcc (GCC) 10.2.1 20210217 kernel signature: 285faba5deb7aabc52e095d14b8216ea64f61578b5d3c04f4f49fca9dd80285b run #0: crashed: BUG: sleeping function called from invalid context in lock_sock_nested run #1: crashed: BUG: sleeping function called from invalid context in lock_sock_nested run #2: crashed: INFO: task hung in sync_inodes_sb run #3: crashed: INFO: task hung in sync_inodes_sb run #4: crashed: INFO: task hung in sync_inodes_sb run #5: crashed: INFO: task hung in sync_inodes_sb run #6: crashed: INFO: task hung in sync_inodes_sb run #7: crashed: INFO: task hung in sync_inodes_sb run #8: crashed: INFO: task hung in sync_inodes_sb run #9: crashed: INFO: task hung in sync_inodes_sb revisions tested: 2, total time: 26m26.315648979s (build: 13m47.691109949s, test: 11m52.736743354s) the crash still happens on HEAD commit msg: Linux 5.13-rc5 crash: INFO: task hung in sync_inodes_sb INFO: task syz-executor.3:8785 blocked for more than 143 seconds. Not tainted 5.13.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:24344 pid: 8785 ppid: 1 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0x8bd/0x23f0 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 wb_wait_for_completion+0x15a/0x200 fs/fs-writeback.c:209 sync_inodes_sb+0x18b/0x8a0 fs/fs-writeback.c:2577 __sync_filesystem fs/sync.c:34 [inline] sync_filesystem fs/sync.c:67 [inline] sync_filesystem+0x10b/0x1f0 fs/sync.c:48 generic_shutdown_super+0x64/0x330 fs/super.c:448 kill_block_super+0x90/0xd0 fs/super.c:1395 deactivate_locked_super+0x7b/0x130 fs/super.c:335 cleanup_mnt+0x324/0x4d0 fs/namespace.c:1136 task_work_run+0xc0/0x160 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:174 [inline] exit_to_user_mode_prepare+0x21c/0x230 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:301 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:57 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x466ce7 RSP: 002b:00007fff00c4f6e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000466ce7 RDX: 00007fff00c4f7b9 RSI: 0000000000000002 RDI: 00007fff00c4f7b0 RBP: 00007fff00c4f7b0 R08: 00000000ffffffff R09: 00007fff00c4f580 R10: 00000000028a28e3 R11: 0000000000000246 R12: 00000000004ae4e4 R13: 00007fff00c50860 R14: 00000000028a2810 R15: 0000000000000002 INFO: task syz-executor.2:8787 blocked for more than 143 seconds. Not tainted 5.13.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:24016 pid: 8787 ppid: 1 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0x8bd/0x23f0 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 wb_wait_for_completion+0x15a/0x200 fs/fs-writeback.c:209 sync_inodes_sb+0x18b/0x8a0 fs/fs-writeback.c:2577 __sync_filesystem fs/sync.c:34 [inline] sync_filesystem fs/sync.c:67 [inline] sync_filesystem+0x10b/0x1f0 fs/sync.c:48 generic_shutdown_super+0x64/0x330 fs/super.c:448 kill_block_super+0x90/0xd0 fs/super.c:1395 deactivate_locked_super+0x7b/0x130 fs/super.c:335 cleanup_mnt+0x324/0x4d0 fs/namespace.c:1136 task_work_run+0xc0/0x160 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:174 [inline] exit_to_user_mode_prepare+0x21c/0x230 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:301 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:57 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x466ce7 RSP: 002b:00007fff7f47b478 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000466ce7 RDX: 00007fff7f47b549 RSI: 0000000000000002 RDI: 00007fff7f47b540 RBP: 00007fff7f47b540 R08: 00000000ffffffff R09: 00007fff7f47b310 R10: 0000000001d5b8e3 R11: 0000000000000246 R12: 00000000004ae4e4 R13: 00007fff7f47c5f0 R14: 0000000001d5b810 R15: 0000000000000002 INFO: task syz-executor.1:8789 blocked for more than 143 seconds. Not tainted 5.13.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:24320 pid: 8789 ppid: 1 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0x8bd/0x23f0 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 wb_wait_for_completion+0x15a/0x200 fs/fs-writeback.c:209 sync_inodes_sb+0x18b/0x8a0 fs/fs-writeback.c:2577 __sync_filesystem fs/sync.c:34 [inline] sync_filesystem fs/sync.c:67 [inline] sync_filesystem+0x10b/0x1f0 fs/sync.c:48 generic_shutdown_super+0x64/0x330 fs/super.c:448 kill_block_super+0x90/0xd0 fs/super.c:1395 deactivate_locked_super+0x7b/0x130 fs/super.c:335 cleanup_mnt+0x324/0x4d0 fs/namespace.c:1136 task_work_run+0xc0/0x160 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:174 [inline] exit_to_user_mode_prepare+0x21c/0x230 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:301 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:57 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x466ce7 RSP: 002b:00007fff8390e9b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000466ce7 RDX: 00007fff8390ea89 RSI: 0000000000000002 RDI: 00007fff8390ea80 RBP: 00007fff8390ea80 R08: 00000000ffffffff R09: 00007fff8390e850 R10: 000000000197e8e3 R11: 0000000000000246 R12: 00000000004ae4e4 R13: 00007fff8390fb30 R14: 000000000197e810 R15: 0000000000000002 INFO: task syz-executor.5:8791 blocked for more than 144 seconds. Not tainted 5.13.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:24304 pid: 8791 ppid: 1 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0x8bd/0x23f0 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 wb_wait_for_completion+0x15a/0x200 fs/fs-writeback.c:209 sync_inodes_sb+0x18b/0x8a0 fs/fs-writeback.c:2577 __sync_filesystem fs/sync.c:34 [inline] sync_filesystem fs/sync.c:67 [inline] sync_filesystem+0x10b/0x1f0 fs/sync.c:48 generic_shutdown_super+0x64/0x330 fs/super.c:448 kill_block_super+0x90/0xd0 fs/super.c:1395 deactivate_locked_super+0x7b/0x130 fs/super.c:335 cleanup_mnt+0x324/0x4d0 fs/namespace.c:1136 task_work_run+0xc0/0x160 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:174 [inline] exit_to_user_mode_prepare+0x21c/0x230 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:301 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:57 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x466ce7 RSP: 002b:00007ffe6c917f08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000466ce7 RDX: 00007ffe6c917fd9 RSI: 0000000000000002 RDI: 00007ffe6c917fd0 RBP: 00007ffe6c917fd0 R08: 00000000ffffffff R09: 00007ffe6c917da0 R10: 0000000001cfd8e3 R11: 0000000000000246 R12: 00000000004ae4e4 R13: 00007ffe6c919080 R14: 0000000001cfd810 R15: 0000000000000002 INFO: task syz-executor.0:8792 blocked for more than 144 seconds. Not tainted 5.13.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:24360 pid: 8792 ppid: 8786 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0x8bd/0x23f0 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 wb_wait_for_completion+0x15a/0x200 fs/fs-writeback.c:209 sync_inodes_sb+0x18b/0x8a0 fs/fs-writeback.c:2577 __sync_filesystem fs/sync.c:34 [inline] sync_filesystem fs/sync.c:67 [inline] sync_filesystem+0x10b/0x1f0 fs/sync.c:48 generic_shutdown_super+0x64/0x330 fs/super.c:448 kill_block_super+0x90/0xd0 fs/super.c:1395 deactivate_locked_super+0x7b/0x130 fs/super.c:335 cleanup_mnt+0x324/0x4d0 fs/namespace.c:1136 task_work_run+0xc0/0x160 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:174 [inline] exit_to_user_mode_prepare+0x21c/0x230 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:301 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:57 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x466ce7 RSP: 002b:00007ffd31bdcdb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000466ce7 RDX: 00007ffd31bdce89 RSI: 0000000000000002 RDI: 00007ffd31bdce80 RBP: 00007ffd31bdce80 R08: 00000000ffffffff R09: 00007ffd31bdcc50 R10: 0000000001db88e3 R11: 0000000000000246 R12: 00000000004ae4e4 R13: 00007ffd31bddf30 R14: 0000000001db8810 R15: 0000000000000002 Showing all locks held in the system: 2 locks held by kworker/u4:1/24: #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:617 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x771/0x13d0 kernel/workqueue.c:2247 #1: ffffc90000defdb0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x79e/0x13d0 kernel/workqueue.c:2251 2 locks held by kworker/u4:2/65: #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:617 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x771/0x13d0 kernel/workqueue.c:2247 #1: ffffc90000eafdb0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x79e/0x13d0 kernel/workqueue.c:2251 2 locks held by kworker/u4:4/831: 1 lock held by khungtaskd/1666: #0: ffffffff8ab90a00 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x28c kernel/locking/lockdep.c:6333 1 lock held by in:imklog/8079: #0: ffff888022d554f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x9c/0xb0 fs/file.c:974 2 locks held by syz-executor.3/8785: #0: ffff8880186f00e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0x5f/0x80 fs/super.c:365 #1: ffff888019452708 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:344 [inline] #1: ffff888019452708 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x171/0x8a0 fs/fs-writeback.c:2575 2 locks held by syz-executor.2/8787: #0: ffff888026eec0e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0x5f/0x80 fs/super.c:365 #1: ffff888143014708 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:344 [inline] #1: ffff888143014708 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x171/0x8a0 fs/fs-writeback.c:2575 2 locks held by syz-executor.1/8789: #0: ffff8880263de0e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0x5f/0x80 fs/super.c:365 #1: ffff888142ffe708 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:344 [inline] #1: ffff888142ffe708 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x171/0x8a0 fs/fs-writeback.c:2575 2 locks held by syz-executor.5/8791: #0: ffff888013cc40e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0x5f/0x80 fs/super.c:365 #1: ffff8880194c6708 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:344 [inline] #1: ffff8880194c6708 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x171/0x8a0 fs/fs-writeback.c:2575 2 locks held by syz-executor.0/8792: #0: ffff888029e7c0e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0x5f/0x80 fs/super.c:365 #1: ffff888142ff8708 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:344 [inline] #1: ffff888142ff8708 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x171/0x8a0 fs/fs-writeback.c:2575 2 locks held by kworker/u4:6/10216: #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:617 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x771/0x13d0 kernel/workqueue.c:2247 #1: ffffc9000b3efdb0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x79e/0x13d0 kernel/workqueue.c:2251 2 locks held by kworker/u4:7/10231: #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:617 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: ffff888140d05938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x771/0x13d0 kernel/workqueue.c:2247 #1: ffffc9000b47fdb0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x79e/0x13d0 kernel/workqueue.c:2251 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1666 Comm: khungtaskd Not tainted 5.13.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x93/0xc2 lib/dump_stack.c:120 nmi_cpu_backtrace.cold+0x2d/0xac lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x11f/0x170 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline] watchdog+0x9cf/0xc00 kernel/hung_task.c:294 kthread+0x36f/0x450 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 10166 Comm: segctord Not tainted 5.13.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rcu_is_watching+0x1/0xc0 kernel/rcu/tree.c:1164 Code: 08 48 89 ef 5d e9 ff d4 0a 07 48 c7 c7 2c 70 b4 8c 48 89 34 24 e8 8f 95 4d 00 48 8b 34 24 eb bb 66 0f 1f 84 00 00 00 00 00 55 <53> 65 ff 05 07 95 aa 7e e8 a2 6f 08 07 48 c7 c3 00 64 03 00 83 f8 RSP: 0018:ffffc9000b24f6c0 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffff8880378d7658 RCX: ffffffff81bbf885 RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff8cb43d90 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8cb43d97 R10: fffffbfff19687b2 R11: ffff8880343f13d0 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 000000000000000b FS: 0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f64da8ce000 CR3: 00000000138b3000 CR4: 0000000000350ee0 Call Trace: rcu_read_lock_held_common kernel/rcu/update.c:108 [inline] rcu_read_lock_sched_held+0x1c/0x70 kernel/rcu/update.c:123 trace_block_touch_buffer include/trace/events/block.h:45 [inline] touch_buffer+0x18c/0x1f0 fs/buffer.c:62 __nilfs_get_page_block fs/nilfs2/page.c:42 [inline] nilfs_grab_buffer+0x1f0/0x4a0 fs/nilfs2/page.c:61 nilfs_mdt_submit_block.constprop.0+0x9a/0x860 fs/nilfs2/mdt.c:121 nilfs_mdt_read_block+0x87/0x2e0 fs/nilfs2/mdt.c:175 nilfs_mdt_get_block+0xd0/0xac0 fs/nilfs2/mdt.c:250 nilfs_sufile_get_header_block fs/nilfs2/sufile.c:85 [inline] nilfs_sufile_update+0x12a/0x310 fs/nilfs2/sufile.c:239 nilfs_sufile_free fs/nilfs2/sufile.h:74 [inline] nilfs_free_incomplete_logs fs/nilfs2/segment.c:1398 [inline] nilfs_segctor_abort_construction+0x943/0xc90 fs/nilfs2/segment.c:1793 nilfs_segctor_do_construct+0x2e80/0x6070 fs/nilfs2/segment.c:2100 nilfs_segctor_construct+0x637/0x940 fs/nilfs2/segment.c:2372 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2480 [inline] nilfs_segctor_thread+0x36d/0xda0 fs/nilfs2/segment.c:2563 kthread+0x36f/0x450 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294