INFO: task syz-executor:6351 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:6351 ppid:6346 flags:0x00000000 Call trace: __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5257 [inline] __schedule+0xdb4/0x1aa4 kernel/sched/core.c:6584 schedule+0xc4/0x170 kernel/sched/core.c:6660 io_schedule+0x84/0x154 kernel/sched/core.c:8848 bit_wait_io+0x1c/0xe8 kernel/sched/wait_bit.c:209 __wait_on_bit kernel/sched/wait_bit.c:49 [inline] out_of_line_wait_on_bit+0x168/0x208 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x504/0xe4c fs/jbd2/transaction.c:1115 jbd2_journal_get_write_access+0x11c/0x14c fs/jbd2/transaction.c:1250 __ext4_journal_get_write_access+0x1f8/0x5f8 fs/ext4/ext4_jbd2.c:235 __ext4_new_inode+0xfa4/0x3560 fs/ext4/ialloc.c:1101 ext4_mkdir+0x308/0xa28 fs/ext4/namei.c:3068 vfs_mkdir+0x314/0x4d8 fs/namei.c:4161 do_mkdirat+0x1b8/0x3ec fs/namei.c:4186 __do_sys_mkdirat fs/namei.c:4201 [inline] __se_sys_mkdirat fs/namei.c:4199 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4199 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x12c arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589 INFO: task syz.1.599:6425 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.599 state:D stack:0 pid:6425 ppid:4332 flags:0x00000001 Call trace: __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5257 [inline] __schedule+0xdb4/0x1aa4 kernel/sched/core.c:6584 schedule+0xc4/0x170 kernel/sched/core.c:6660 blk_mq_freeze_queue_wait+0xe8/0x170 block/blk-mq.c:181 nvme_wait_freeze drivers/nvme/host/core.c:5410 [inline] nvme_passthru_start drivers/nvme/host/core.c:1152 [inline] nvme_execute_passthru_rq+0x394/0x578 drivers/nvme/host/core.c:1204 nvme_submit_user_cmd+0x258/0x400 drivers/nvme/host/ioctl.c:179 nvme_user_cmd64+0x34c/0x560 drivers/nvme/host/ioctl.c:353 nvme_dev_ioctl+0xb0/0x3a0 drivers/nvme/host/ioctl.c:909 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x12c arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589 INFO: task syz.4.621:6537 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.4.621 state:D stack:0 pid:6537 ppid:4331 flags:0x00000001 Call trace: __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5257 [inline] __schedule+0xdb4/0x1aa4 kernel/sched/core.c:6584 schedule+0xc4/0x170 kernel/sched/core.c:6660 io_schedule+0x84/0x154 kernel/sched/core.c:8848 bit_wait_io+0x1c/0xe8 kernel/sched/wait_bit.c:209 __wait_on_bit kernel/sched/wait_bit.c:49 [inline] out_of_line_wait_on_bit+0x168/0x208 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x504/0xe4c fs/jbd2/transaction.c:1115 jbd2_journal_get_write_access+0x11c/0x14c fs/jbd2/transaction.c:1250 __ext4_journal_get_write_access+0x1f8/0x5f8 fs/ext4/ext4_jbd2.c:235 ext4_reserve_inode_write+0x1e4/0x264 fs/ext4/inode.c:5978 __ext4_mark_inode_dirty+0x190/0x7e8 fs/ext4/inode.c:6162 ext4_dirty_inode+0xd4/0x110 fs/ext4/inode.c:6199 __mark_inode_dirty+0x2e8/0x11cc fs/fs-writeback.c:2515 generic_update_time fs/inode.c:1944 [inline] inode_update_time fs/inode.c:1957 [inline] __file_update_time+0x1f8/0x220 fs/inode.c:2145 file_update_time+0x270/0x2ec fs/inode.c:2176 ext4_page_mkwrite+0x180/0x10b0 fs/ext4/inode.c:6317 do_page_mkwrite+0x140/0x35c mm/memory.c:3009 do_shared_fault mm/memory.c:4694 [inline] do_fault mm/memory.c:4762 [inline] handle_pte_fault mm/memory.c:5029 [inline] __handle_mm_fault mm/memory.c:5171 [inline] handle_mm_fault+0x1404/0x3018 mm/memory.c:5292 __do_page_fault arch/arm64/mm/fault.c:506 [inline] do_page_fault+0x310/0xa5c arch/arm64/mm/fault.c:590 do_translation_fault+0x94/0xc8 arch/arm64/mm/fault.c:674 do_mem_abort+0x70/0x198 arch/arm64/mm/fault.c:811 el0_da+0x74/0x14c arch/arm64/kernel/entry-common.c:515 el0t_64_sync_handler+0x90/0xf0 arch/arm64/kernel/entry-common.c:658 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589 INFO: task syz.5.630:6574 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.5.630 state:D stack:0 pid:6574 ppid:5113 flags:0x00000001 Call trace: __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5257 [inline] __schedule+0xdb4/0x1aa4 kernel/sched/core.c:6584 schedule+0xc4/0x170 kernel/sched/core.c:6660 io_schedule+0x84/0x154 kernel/sched/core.c:8848 bit_wait_io+0x1c/0xe8 kernel/sched/wait_bit.c:209 __wait_on_bit kernel/sched/wait_bit.c:49 [inline] out_of_line_wait_on_bit+0x168/0x208 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x504/0xe4c fs/jbd2/transaction.c:1115 jbd2_journal_get_write_access+0x11c/0x14c fs/jbd2/transaction.c:1250 __ext4_journal_get_write_access+0x1f8/0x5f8 fs/ext4/ext4_jbd2.c:235 ext4_reserve_inode_write+0x1e4/0x264 fs/ext4/inode.c:5978 __ext4_mark_inode_dirty+0x190/0x7e8 fs/ext4/inode.c:6162 ext4_dirty_inode+0xd4/0x110 fs/ext4/inode.c:6199 __mark_inode_dirty+0x2e8/0x11cc fs/fs-writeback.c:2515 generic_update_time fs/inode.c:1944 [inline] inode_update_time fs/inode.c:1957 [inline] __file_update_time+0x1f8/0x220 fs/inode.c:2145 file_update_time+0x270/0x2ec fs/inode.c:2176 ext4_page_mkwrite+0x180/0x10b0 fs/ext4/inode.c:6317 do_page_mkwrite+0x140/0x35c mm/memory.c:3009 do_shared_fault mm/memory.c:4694 [inline] do_fault mm/memory.c:4762 [inline] handle_pte_fault mm/memory.c:5029 [inline] __handle_mm_fault mm/memory.c:5171 [inline] handle_mm_fault+0x1404/0x3018 mm/memory.c:5292 __do_page_fault arch/arm64/mm/fault.c:506 [inline] do_page_fault+0x310/0xa5c arch/arm64/mm/fault.c:590 do_translation_fault+0x94/0xc8 arch/arm64/mm/fault.c:674 do_mem_abort+0x70/0x198 arch/arm64/mm/fault.c:811 el0_da+0x74/0x14c arch/arm64/kernel/entry-common.c:515 el0t_64_sync_handler+0x90/0xf0 arch/arm64/kernel/entry-common.c:658 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589 INFO: task syz.3.631:6576 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.631 state:D stack:0 pid:6576 ppid:4344 flags:0x00000001 Call trace: __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5257 [inline] __schedule+0xdb4/0x1aa4 kernel/sched/core.c:6584 schedule+0xc4/0x170 kernel/sched/core.c:6660 io_schedule+0x84/0x154 kernel/sched/core.c:8848 bit_wait_io+0x1c/0xe8 kernel/sched/wait_bit.c:209 __wait_on_bit kernel/sched/wait_bit.c:49 [inline] out_of_line_wait_on_bit+0x168/0x208 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x504/0xe4c fs/jbd2/transaction.c:1115 jbd2_journal_get_write_access+0x11c/0x14c fs/jbd2/transaction.c:1250 __ext4_journal_get_write_access+0x1f8/0x5f8 fs/ext4/ext4_jbd2.c:235 ext4_reserve_inode_write+0x1e4/0x264 fs/ext4/inode.c:5978 __ext4_mark_inode_dirty+0x190/0x7e8 fs/ext4/inode.c:6162 ext4_dirty_inode+0xd4/0x110 fs/ext4/inode.c:6199 __mark_inode_dirty+0x2e8/0x11cc fs/fs-writeback.c:2515 generic_update_time fs/inode.c:1944 [inline] inode_update_time fs/inode.c:1957 [inline] __file_update_time+0x1f8/0x220 fs/inode.c:2145 file_update_time+0x270/0x2ec fs/inode.c:2176 ext4_page_mkwrite+0x180/0x10b0 fs/ext4/inode.c:6317 do_page_mkwrite+0x140/0x35c mm/memory.c:3009 do_shared_fault mm/memory.c:4694 [inline] do_fault mm/memory.c:4762 [inline] handle_pte_fault mm/memory.c:5029 [inline] __handle_mm_fault mm/memory.c:5171 [inline] handle_mm_fault+0x1404/0x3018 mm/memory.c:5292 __do_page_fault arch/arm64/mm/fault.c:506 [inline] do_page_fault+0x310/0xa5c arch/arm64/mm/fault.c:590 do_translation_fault+0x94/0xc8 arch/arm64/mm/fault.c:674 do_mem_abort+0x70/0x198 arch/arm64/mm/fault.c:811 el0_da+0x74/0x14c arch/arm64/kernel/entry-common.c:515 el0t_64_sync_handler+0x90/0xf0 arch/arm64/kernel/entry-common.c:658 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589 INFO: task dhcpcd:6577 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:0 pid:6577 ppid:3997 flags:0x00000008 Call trace: __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5257 [inline] __schedule+0xdb4/0x1aa4 kernel/sched/core.c:6584 schedule+0xc4/0x170 kernel/sched/core.c:6660 io_schedule+0x84/0x154 kernel/sched/core.c:8848 bit_wait_io+0x1c/0xe8 kernel/sched/wait_bit.c:209 __wait_on_bit kernel/sched/wait_bit.c:49 [inline] out_of_line_wait_on_bit+0x168/0x208 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x504/0xe4c fs/jbd2/transaction.c:1115 jbd2_journal_get_write_access+0x11c/0x14c fs/jbd2/transaction.c:1250 __ext4_journal_get_write_access+0x1f8/0x5f8 fs/ext4/ext4_jbd2.c:235 ext4_reserve_inode_write+0x1e4/0x264 fs/ext4/inode.c:5978 __ext4_mark_inode_dirty+0x190/0x7e8 fs/ext4/inode.c:6162 ext4_dirty_inode+0xd4/0x110 fs/ext4/inode.c:6199 __mark_inode_dirty+0x2e8/0x11cc fs/fs-writeback.c:2515 generic_update_time fs/inode.c:1944 [inline] inode_update_time fs/inode.c:1957 [inline] touch_atime+0x410/0x7dc fs/inode.c:2029 file_accessed include/linux/fs.h:2606 [inline] filemap_read+0x1ec4/0x20dc mm/filemap.c:2836 generic_file_read_iter+0xf8/0x5ac mm/filemap.c:2941 ext4_file_read_iter+0x360/0x4cc fs/ext4/file.c:-1 __kernel_read+0x24c/0x5c0 fs/read_write.c:428 kernel_read+0xd4/0x1c8 fs/read_write.c:446 prepare_binprm fs/exec.c:1707 [inline] search_binary_handler fs/exec.c:1761 [inline] exec_binprm fs/exec.c:1818 [inline] bprm_execve+0x894/0x1588 fs/exec.c:1887 do_execveat_common+0x668/0x7fc fs/exec.c:1992 do_execve fs/exec.c:2066 [inline] __do_sys_execve fs/exec.c:2142 [inline] __se_sys_execve fs/exec.c:2137 [inline] __arm64_sys_execve+0x98/0xb0 fs/exec.c:2137 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x12c arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffff8000165b7ed0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xc64 kernel/rcu/tasks.h:543 1 lock held by rcu_tasks_trace/13: #0: ffff8000165b8710 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xc64 kernel/rcu/tasks.h:543 1 lock held by khungtaskd/28: #0: ffff8000165b7580 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349 4 locks held by kworker/u4:5/1645: #0: ffff0000c0c44138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1 #1: ffff8000265c7c40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267 #2: ffff0000d917c0e0 (&type->s_umount_key#30){++++}-{3:3}, at: trylock_super+0x24/0xf4 fs/super.c:415 #3: ffff0000d917ec18 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages_down_read fs/ext4/ext4.h:1785 [inline] #3: ffff0000d917ec18 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages+0x1b0/0x29f0 fs/ext4/inode.c:2719 1 lock held by klogd/3931: 2 locks held by getty/4088: #0: ffff0000d72bf098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80001fe862f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2e8/0xffc drivers/tty/n_tty.c:2198 3 locks held by syz-executor/4319: #0: ffff0000d5006d48 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #0: ffff0000d5006d48 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5320 [inline] #0: ffff0000d5006d48 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x38/0x2e0 mm/memory.c:5382 #1: ffff0000d917c558 (sb_pagefaults){++++}-{0:0}, at: __sb_start_write include/linux/fs.h:1897 [inline] #1: ffff0000d917c558 (sb_pagefaults){++++}-{0:0}, at: sb_start_pagefault include/linux/fs.h:2001 [inline] #1: ffff0000d917c558 (sb_pagefaults){++++}-{0:0}, at: ext4_page_mkwrite+0x168/0x10b0 fs/ext4/inode.c:6316 #2: ffff0000d91ba990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfec/0x125c fs/jbd2/transaction.c:461 3 locks held by syz-executor/6351: #0: ffff0000d917c460 (sb_writers#3){++++}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:402 #1: ffff0000f6f6c030 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:799 [inline] #1: ffff0000f6f6c030 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: filename_create+0x1b0/0x3a8 fs/namei.c:3931 #2: ffff0000d91ba990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfec/0x125c fs/jbd2/transaction.c:461 3 locks held by syz.1.599/6425: #0: ffff0000d0088440 (&ctrl->scan_lock){+.+.}-{3:3}, at: nvme_passthru_start drivers/nvme/host/core.c:1147 [inline] #0: ffff0000d0088440 (&ctrl->scan_lock){+.+.}-{3:3}, at: nvme_execute_passthru_rq+0x268/0x578 drivers/nvme/host/core.c:1204 #1: ffff0000d0033510 (&subsys->lock){+.+.}-{3:3}, at: nvme_passthru_start drivers/nvme/host/core.c:1148 [inline] #1: ffff0000d0033510 (&subsys->lock){+.+.}-{3:3}, at: nvme_execute_passthru_rq+0x290/0x578 drivers/nvme/host/core.c:1204 #2: ffff0000d0088528 (&ctrl->namespaces_rwsem){++++}-{3:3}, at: nvme_wait_freeze drivers/nvme/host/core.c:5408 [inline] #2: ffff0000d0088528 (&ctrl->namespaces_rwsem){++++}-{3:3}, at: nvme_passthru_start drivers/nvme/host/core.c:1152 [inline] #2: ffff0000d0088528 (&ctrl->namespaces_rwsem){++++}-{3:3}, at: nvme_execute_passthru_rq+0x34c/0x578 drivers/nvme/host/core.c:1204 3 locks held by syz.4.621/6537: #0: ffff0000dc766748 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #0: ffff0000dc766748 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5320 [inline] #0: ffff0000dc766748 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x38/0x2e0 mm/memory.c:5382 #1: ffff0000d917c558 (sb_pagefaults){++++}-{0:0}, at: __sb_start_write include/linux/fs.h:1897 [inline] #1: ffff0000d917c558 (sb_pagefaults){++++}-{0:0}, at: sb_start_pagefault include/linux/fs.h:2001 [inline] #1: ffff0000d917c558 (sb_pagefaults){++++}-{0:0}, at: ext4_page_mkwrite+0x168/0x10b0 fs/ext4/inode.c:6316 #2: ffff0000d91ba990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfec/0x125c fs/jbd2/transaction.c:461 3 locks held by syz.5.630/6574: #0: ffff0000df819948 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #0: ffff0000df819948 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5320 [inline] #0: ffff0000df819948 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x38/0x2e0 mm/memory.c:5382 #1: ffff0000d917c558 (sb_pagefaults){++++}-{0:0}, at: __sb_start_write include/linux/fs.h:1897 [inline] #1: ffff0000d917c558 (sb_pagefaults){++++}-{0:0}, at: sb_start_pagefault include/linux/fs.h:2001 [inline] #1: ffff0000d917c558 (sb_pagefaults){++++}-{0:0}, at: ext4_page_mkwrite+0x168/0x10b0 fs/ext4/inode.c:6316 #2: ffff0000d91ba990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfec/0x125c fs/jbd2/transaction.c:461 3 locks held by syz.3.631/6576: #0: ffff0000c3a98d48 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #0: ffff0000c3a98d48 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5320 [inline] #0: ffff0000c3a98d48 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x38/0x2e0 mm/memory.c:5382 #1: ffff0000d917c558 (sb_pagefaults){++++}-{0:0}, at: __sb_start_write include/linux/fs.h:1897 [inline] #1: ffff0000d917c558 (sb_pagefaults){++++}-{0:0}, at: sb_start_pagefault include/linux/fs.h:2001 [inline] #1: ffff0000d917c558 (sb_pagefaults){++++}-{0:0}, at: ext4_page_mkwrite+0x168/0x10b0 fs/ext4/inode.c:6316 #2: ffff0000d91ba990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfec/0x125c fs/jbd2/transaction.c:461 3 locks held by dhcpcd/6577: #0: ffff0000d9a5a050 (&sig->cred_guard_mutex){+.+.}-{3:3}, at: prepare_bprm_creds fs/exec.c:1513 [inline] #0: ffff0000d9a5a050 (&sig->cred_guard_mutex){+.+.}-{3:3}, at: bprm_execve+0xb8/0x1588 fs/exec.c:1855 #1: ffff0000d917c460 (sb_writers#3){++++}-{0:0}, at: file_accessed include/linux/fs.h:2606 [inline] #1: ffff0000d917c460 (sb_writers#3){++++}-{0:0}, at: filemap_read+0x1ec4/0x20dc mm/filemap.c:2836 #2: ffff0000d91ba990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfec/0x125c fs/jbd2/transaction.c:461 =============================================