INFO: task syz-executor.5:14364 blocked for more than 143 seconds.
Not tainted 6.1.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:24792 pid:14364 ppid:13121 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6521
schedule+0xde/0x1b0 kernel/sched/core.c:6597
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2628
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2676
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x170/0xb50 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3753
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:857 [inline]
dump_user_range+0x234/0x700 fs/coredump.c:908
elf_core_dump+0x26e2/0x3520 fs/binfmt_elf.c:2312
do_coredump+0x276d/0x3c70 fs/coredump.c:755
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x86/0x2300 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
exc_page_fault+0xc0/0x170 arch/x86/mm/fault.c:1578
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x0
RSP: 002b:0000000020000208 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f8a369abf80 RCX: 00007f8a3688c0d9
RDX: 0000000020001200 RSI: 0000000020000200 RDI: 00000000810c1000
RBP: 00007f8a368e7ae9 R08: 0000000020001280 R09: 0000000020001280
R10: 0000000020001240 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fff6c703e7f R14: 00007f8a37601300 R15: 0000000000022000
INFO: task syz-executor.3:14386 blocked for more than 143 seconds.
Not tainted 6.1.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24792 pid:14386 ppid:31367 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6521
schedule+0xde/0x1b0 kernel/sched/core.c:6597
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2628
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2676
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x170/0xb50 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3753
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:857 [inline]
dump_user_range+0x234/0x700 fs/coredump.c:908
elf_core_dump+0x26e2/0x3520 fs/binfmt_elf.c:2312
do_coredump+0x276d/0x3c70 fs/coredump.c:755
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x86/0x2300 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
exc_page_fault+0xc0/0x170 arch/x86/mm/fault.c:1578
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x0
RSP: 002b:0000000020000208 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fc1defabf80 RCX: 00007fc1dee8c0d9
RDX: 0000000020001200 RSI: 0000000020000200 RDI: 00000000810c1000
RBP: 00007fc1deee7ae9 R08: 0000000020001280 R09: 0000000020001280
R10: 0000000020001240 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fff2fd5b78f R14: 00007fc1dfbd2300 R15: 0000000000022000
INFO: task syz-executor.3:14593 blocked for more than 144 seconds.
Not tainted 6.1.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24792 pid:14593 ppid:31367 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6521
schedule+0xde/0x1b0 kernel/sched/core.c:6597
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2628
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2676
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x170/0xb50 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3753
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:857 [inline]
dump_user_range+0x234/0x700 fs/coredump.c:908
elf_core_dump+0x26e2/0x3520 fs/binfmt_elf.c:2312
do_coredump+0x276d/0x3c70 fs/coredump.c:755
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x86/0x2300 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
exc_page_fault+0xc0/0x170 arch/x86/mm/fault.c:1578
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x0
RSP: 002b:0000000020000208 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fc1defac050 RCX: 00007fc1dee8c0d9
RDX: 0000000020001200 RSI: 0000000020000200 RDI: 00000000810c1000
RBP: 00007fc1deee7ae9 R08: 0000000020001280 R09: 0000000020001280
R10: 0000000020001240 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fff2fd5b78f R14: 00007fc1dfbb1300 R15: 0000000000022000
INFO: task syz-executor.5:14609 blocked for more than 144 seconds.
Not tainted 6.1.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:24792 pid:14609 ppid:13121 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6521
schedule+0xde/0x1b0 kernel/sched/core.c:6597
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2628
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2676
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x170/0xb50 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3753
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:857 [inline]
dump_user_range+0x234/0x700 fs/coredump.c:908
elf_core_dump+0x26e2/0x3520 fs/binfmt_elf.c:2312
do_coredump+0x276d/0x3c70 fs/coredump.c:755
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x86/0x2300 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
exc_page_fault+0xc0/0x170 arch/x86/mm/fault.c:1578
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x0
RSP: 002b:0000000020000208 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f8a369abf80 RCX: 00007f8a3688c0d9
RDX: 0000000020001200 RSI: 0000000020000200 RDI: 00000000810c1000
RBP: 00007f8a368e7ae9 R08: 0000000020001280 R09: 0000000020001280
R10: 0000000020001240 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fff6c703e7f R14: 00007f8a37601300 R15: 0000000000022000
INFO: task syz-executor.5:14639 blocked for more than 145 seconds.
Not tainted 6.1.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:24792 pid:14639 ppid:13121 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6521
schedule+0xde/0x1b0 kernel/sched/core.c:6597
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2628
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2676
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x170/0xb50 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3753
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:857 [inline]
dump_user_range+0x234/0x700 fs/coredump.c:908
elf_core_dump+0x26e2/0x3520 fs/binfmt_elf.c:2312
do_coredump+0x276d/0x3c70 fs/coredump.c:755
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x86/0x2300 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
exc_page_fault+0xc0/0x170 arch/x86/mm/fault.c:1578
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x0
RSP: 002b:0000000020000208 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f8a369abf80 RCX: 00007f8a3688c0d9
RDX: 0000000020001200 RSI: 0000000020000200 RDI: 00000000810c1000
RBP: 00007f8a368e7ae9 R08: 0000000020001280 R09: 0000000020001280
R10: 0000000020001240 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fff6c703e7f R14: 00007f8a37601300 R15: 0000000000022000
INFO: task syz-executor.3:14668 blocked for more than 147 seconds.
Not tainted 6.1.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24792 pid:14668 ppid:31367 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6521
schedule+0xde/0x1b0 kernel/sched/core.c:6597
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2628
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2676
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x170/0xb50 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3753
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:857 [inline]
dump_user_range+0x234/0x700 fs/coredump.c:908
elf_core_dump+0x26e2/0x3520 fs/binfmt_elf.c:2312
do_coredump+0x276d/0x3c70 fs/coredump.c:755
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x86/0x2300 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
exc_page_fault+0xc0/0x170 arch/x86/mm/fault.c:1578
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x0
RSP: 002b:0000000020000208 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fc1defabf80 RCX: 00007fc1dee8c0d9
RDX: 0000000020001200 RSI: 0000000020000200 RDI: 00000000810c1000
RBP: 00007fc1deee7ae9 R08: 0000000020001280 R09: 0000000020001280
R10: 0000000020001240 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fff2fd5b78f R14: 00007fc1dfbd2300 R15: 0000000000022000
INFO: task syz-executor.5:14706 blocked for more than 148 seconds.
Not tainted 6.1.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:24520 pid:14706 ppid:13121 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6521
schedule+0xde/0x1b0 kernel/sched/core.c:6597
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2628
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2676
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x170/0xb50 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3753
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:857 [inline]
dump_user_range+0x234/0x700 fs/coredump.c:908
elf_core_dump+0x26e2/0x3520 fs/binfmt_elf.c:2312
do_coredump+0x276d/0x3c70 fs/coredump.c:755
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x86/0x2300 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
exc_page_fault+0xc0/0x170 arch/x86/mm/fault.c:1578
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x0
RSP: 002b:0000000020000208 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f8a369abf80 RCX: 00007f8a3688c0d9
RDX: 0000000020001200 RSI: 0000000020000200 RDI: 00000000810c1000
RBP: 00007f8a368e7ae9 R08: 0000000020001280 R09: 0000000020001280
R10: 0000000020001240 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fff6c703e7f R14: 00007f8a37601300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c58f070 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c58ed70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8c58fbc0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x264 kernel/locking/lockdep.c:6494
3 locks held by kworker/u4:3/52:
#0: ffff888144aff938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888144aff938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888144aff938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888144aff938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888144aff938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888144aff938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc90000bd7da8 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
2 locks held by getty/3314:
#0: ffff888027ea5098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
3 locks held by syz-executor.3/31367:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: do_unlinkat+0x183/0x660 fs/namei.c:4299
#1: ffff888035397258 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline]
#1: ffff888035397258 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_unlinkat+0x270/0x660 fs/namei.c:4303
#2: ffff888084f12218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#2: ffff888084f12218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: vfs_unlink+0xd9/0x930 fs/namei.c:4241
5 locks held by kworker/u4:9/379:
3 locks held by syz-executor.5/14364:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888085ad4030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888085ad4030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff88814b8d80e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2673
3 locks held by syz-executor.3/14386:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c2e1810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c2e1810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff88814b8d80e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2673
3 locks held by syz-executor.3/14593:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888085e95440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888085e95440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff88814b8d80e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2673
3 locks held by syz-executor.5/14609:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880362fca38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880362fca38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff88814b8d80e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2673
3 locks held by syz-executor.5/14639:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888087135440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888087135440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff88814b8d80e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2673
3 locks held by syz-executor.3/14668:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c3eb628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c3eb628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff88814b8d80e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2673
3 locks held by syz-executor.5/14706:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888040900e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888040900e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff88814b8d80e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2673
3 locks held by syz-executor.0/16199:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: do_unlinkat+0x183/0x660 fs/namei.c:4299
#1: ffff888084f13628 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline]
#1: ffff888084f13628 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_unlinkat+0x270/0x660 fs/namei.c:4303
#2: ffff888036268400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#2: ffff888036268400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: vfs_unlink+0xd9/0x930 fs/namei.c:4241
1 lock held by syz-executor.1/16765:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.1/16888:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.3/17114:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.1/17118:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.2/17119:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.3/17147:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.2/17233:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.3/17236:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.1/17246:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.1/17305:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.5/17339:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.3/17347:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.1/17481:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.5/17509:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.3/17513:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.2/17563:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.5/17564:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.2/17583:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.5/17638:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.0/17647:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.0/17668:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.0/17689:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.2/17690:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.0/17703:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.2/17717:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.0/17739:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.2/17763:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.2/17779:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.0/17806:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.2/17820:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
1 lock held by syz-executor.3/17823:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
3 locks held by syz-executor.4/18196:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: do_unlinkat+0x183/0x660 fs/namei.c:4299
#1: ffff888035392218 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline]
#1: ffff888035392218 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_unlinkat+0x270/0x660 fs/namei.c:4303
#2: ffff88804e503628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#2: ffff88804e503628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: vfs_unlink+0xd9/0x930 fs/namei.c:4241
1 lock held by syz-executor.2/18291:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
2 locks held by syz-executor.3/18293:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88802b8b1810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88802b8b1810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/18295:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888087ed8400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888087ed8400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/18296:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880410da218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880410da218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/18299:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888087edf258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888087edf258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.4/18304:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c2e7258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c2e7258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/18307:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c3eca38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c3eca38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/18317:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c3ea218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c3ea218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
1 lock held by syz-executor.0/18319:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
2 locks held by syz-executor.3/18320:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c3ede48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c3ede48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/18331:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888034205e48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888034205e48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.3/18337:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888084ce6850 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888084ce6850 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/18342:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888084ce4030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888084ce4030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/18343:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888084ce4a38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888084ce4a38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.4/18357:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888040905e48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888040905e48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/18358:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880353ce850 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880353ce850 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/18361:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888085ad0400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888085ad0400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/18373:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888085ad7258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888085ad7258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/18385:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c099810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c099810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.4/18389:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c2a0400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c2a0400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/18394:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888071bff258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888071bff258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/18402:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888071bfe850 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888071bfe850 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/18420:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888085f3de48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888085f3de48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/18459:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c2e0e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c2e0e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.3/18464:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888085f3d440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888085f3d440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/18468:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c670e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c670e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
1 lock held by syz-executor.2/18474:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
2 locks held by syz-executor.4/18475:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888085f3ca38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888085f3ca38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/18490:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88805887d440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88805887d440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/18494:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880413b7258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880413b7258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/18502:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88805887ac20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88805887ac20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.4/18505:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88805887a218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88805887a218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/18583:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880342d4a38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880342d4a38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/18584:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880342d1810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880342d1810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/18600:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880295e6850 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880295e6850 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/18652:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c10a218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c10a218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/18653:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c10de48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c10de48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/18657:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880412e4030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880412e4030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.4/18780:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888071bfca38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888071bfca38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/18783:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c2a5e48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c2a5e48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/18786:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c2a2c20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c2a2c20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/18790:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888087132218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888087132218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.4/18793:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888087132c20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888087132c20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/18892:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88802b8b3628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88802b8b3628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/18894:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88802b8b0e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88802b8b0e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.4/18895:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88802b8b2218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88802b8b2218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.4/18903:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880413b4a38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880413b4a38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/19039:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888071bf9810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888071bf9810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/19058:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888087d2b628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888087d2b628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/19059:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888087d2c030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888087d2c030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/19069:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888087d2ac20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888087d2ac20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.3/19090:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c3e8400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c3e8400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.3/19095:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888087edc030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888087edc030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/19271:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888034204030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888034204030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.4/19273:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888034200e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888034200e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/19281:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880870ea218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880870ea218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/19289:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888084cdac20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888084cdac20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.4/19290:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888040901810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888040901810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.3/19296:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888040902c20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888040902c20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/19305:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880295e2218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880295e2218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/19308:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880297de850 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880297de850 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/19310:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880295e3628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880295e3628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.3/19315:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c6f9810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c6f9810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/19321:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880880db628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880880db628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.2/19327:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880880dca38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880880dca38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.4/19328:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880880da218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880880da218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/19334:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888085f38e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888085f38e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
1 lock held by syz-executor.1/19336:
#0: ffff88814b8dab98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
2 locks held by syz-executor.2/19335:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c09b628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c09b628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.4/19342:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88802b6ef258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88802b6ef258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.2/19344:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88802b5bac20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88802b5bac20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/19347:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88802b6eb628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88802b6eb628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/19350:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880361b8e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880361b8e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.2/19360:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880342d2218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880342d2218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.3/19361:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88805887c030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88805887c030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/19364:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880342d0400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880342d0400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/19365:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88804e5f1810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88804e5f1810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.4/19372:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c10d440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c10d440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/19374:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880342d5e48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880342d5e48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.2/19378:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880410db628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880410db628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.3/19381:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880410dde48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880410dde48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/19391:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88804099ac20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88804099ac20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/19394:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88802b8b7258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88802b8b7258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.4/19396:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880362fa218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880362fa218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.2/19399:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880362fde48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880362fde48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/19401:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888035392c20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888035392c20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.3/19403:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880362ff258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880362ff258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/19414:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88804e502218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88804e502218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.2/19419:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888084f10e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888084f10e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.3/19423:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888084f12218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888084f12218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/19427:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88804e504030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88804e504030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.4/19428:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88804e503628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88804e503628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/19433:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c2a2218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c2a2218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.2/19441:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88804e506850 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88804e506850 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.0/19447:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888036268400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888036268400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/19448:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803c760e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803c760e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/19450:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888036268e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888036268e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.2/19452:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803626a218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803626a218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/19459:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888087f4e850 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888087f4e850 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/19461:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888087ccb628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888087ccb628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.2/19462:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880413b2218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880413b2218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.5/19468:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888058ae4a38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888058ae4a38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.1/19470:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888085ad1810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888085ad1810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
2 locks held by syz-executor.2/19471:
#0: ffff88814b8d8460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888034203628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888034203628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x333/0x3c0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc75/0xfc0 kernel/hung_task.c:377
kthread+0x2e8/0x3a0 kernel/kthread.c:376