INFO: task syz-executor.4:23808 blocked for more than 143 seconds.
Not tainted 6.2.0-rc8-syzkaller-00098-gec35307e18ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:23000 pid:23808 ppid:6060 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xbdd/0x54f0 kernel/sched/core.c:6606
schedule+0xde/0x1b0 kernel/sched/core.c:6682
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:192
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2639
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2687
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:3029
ext4_da_write_begin+0x170/0xb50 fs/ext4/inode.c:3056
generic_perform_write+0x256/0x570 mm/filemap.c:3772
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bf/0x1710 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:888 [inline]
dump_user_range+0x234/0x700 fs/coredump.c:915
elf_core_dump+0x2718/0x3590 fs/binfmt_elf.c:2137
do_coredump+0x2764/0x3c50 fs/coredump.c:762
get_signal+0x1bfa/0x2440 kernel/signal.c:2845
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
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: 0033:0x8de
RSP: 002b:0000000020000268 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f3175fabf80 RCX: 00007f3175e8c0f9
RDX: 0000000020000280 RSI: 0000000020000260 RDI: 0000000000002000
RBP: 00007f3175ee7ae9 R08: 0000000020000300 R09: 0000000020000300
R10: 00000000200002c0 R11: 0000000000000206 R12: 0000000000000000
R13: 00007ffcf54a294f R14: 00007f3176b32300 R15: 0000000000022000
INFO: task syz-executor.5:25099 blocked for more than 143 seconds.
Not tainted 6.2.0-rc8-syzkaller-00098-gec35307e18ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:23344 pid:25099 ppid:21169 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xbdd/0x54f0 kernel/sched/core.c:6606
schedule+0xde/0x1b0 kernel/sched/core.c:6682
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:192
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2639
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2687
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:3029
ext4_da_write_begin+0x170/0xb50 fs/ext4/inode.c:3056
generic_perform_write+0x256/0x570 mm/filemap.c:3772
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bf/0x1710 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:888 [inline]
dump_user_range+0x234/0x700 fs/coredump.c:915
elf_core_dump+0x2718/0x3590 fs/binfmt_elf.c:2137
do_coredump+0x2764/0x3c50 fs/coredump.c:762
get_signal+0x1bfa/0x2440 kernel/signal.c:2845
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
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: 0033:0x8de
RSP: 002b:0000000020000268 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fc1747abf80 RCX: 00007fc17468c0f9
RDX: 0000000020000280 RSI: 0000000020000260 RDI: 0000000000002000
RBP: 00007fc1746e7ae9 R08: 0000000020000300 R09: 0000000020000300
R10: 00000000200002c0 R11: 0000000000000206 R12: 0000000000000000
R13: 00007ffdc417775f R14: 00007fc17546d300 R15: 0000000000022000
INFO: task syz-executor.4:25109 blocked for more than 145 seconds.
Not tainted 6.2.0-rc8-syzkaller-00098-gec35307e18ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:22832 pid:25109 ppid:6060 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xbdd/0x54f0 kernel/sched/core.c:6606
schedule+0xde/0x1b0 kernel/sched/core.c:6682
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:192
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2639
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2687
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:3029
ext4_da_write_begin+0x170/0xb50 fs/ext4/inode.c:3056
generic_perform_write+0x256/0x570 mm/filemap.c:3772
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bf/0x1710 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:888 [inline]
dump_user_range+0x234/0x700 fs/coredump.c:915
elf_core_dump+0x2718/0x3590 fs/binfmt_elf.c:2137
do_coredump+0x2764/0x3c50 fs/coredump.c:762
get_signal+0x1bfa/0x2440 kernel/signal.c:2845
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
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: 0033:0x8de
RSP: 002b:0000000020000268 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f3175fabf80 RCX: 00007f3175e8c0f9
RDX: 0000000020000280 RSI: 0000000020000260 RDI: 0000000000002000
RBP: 00007f3175ee7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000200002c0 R11: 0000000000000206 R12: 0000000000000000
R13: 00007ffcf54a294f R14: 00007f3176b32300 R15: 0000000000022000
INFO: task syz-executor.5:25148 blocked for more than 146 seconds.
Not tainted 6.2.0-rc8-syzkaller-00098-gec35307e18ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:23600 pid:25148 ppid:21169 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xbdd/0x54f0 kernel/sched/core.c:6606
schedule+0xde/0x1b0 kernel/sched/core.c:6682
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:192
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2639
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2687
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:3029
ext4_da_write_begin+0x170/0xb50 fs/ext4/inode.c:3056
generic_perform_write+0x256/0x570 mm/filemap.c:3772
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bf/0x1710 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:888 [inline]
dump_user_range+0x234/0x700 fs/coredump.c:915
elf_core_dump+0x2718/0x3590 fs/binfmt_elf.c:2137
do_coredump+0x2764/0x3c50 fs/coredump.c:762
get_signal+0x1bfa/0x2440 kernel/signal.c:2845
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
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: 0033:0x8de
RSP: 002b:0000000020000268 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fc1747ac050 RCX: 00007fc17468c0f9
RDX: 0000000020000280 RSI: 0000000020000260 RDI: 0000000000002000
RBP: 00007fc1746e7ae9 R08: 0000000020000300 R09: 0000000020000300
R10: 00000000200002c0 R11: 0000000000000206 R12: 0000000000000000
R13: 00007ffdc417775f R14: 00007fc17544c300 R15: 0000000000022000
INFO: task syz-executor.4:25160 blocked for more than 148 seconds.
Not tainted 6.2.0-rc8-syzkaller-00098-gec35307e18ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:23680 pid:25160 ppid:6060 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xbdd/0x54f0 kernel/sched/core.c:6606
schedule+0xde/0x1b0 kernel/sched/core.c:6682
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:192
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2639
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2687
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:3029
ext4_da_write_begin+0x170/0xb50 fs/ext4/inode.c:3056
generic_perform_write+0x256/0x570 mm/filemap.c:3772
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bf/0x1710 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:888 [inline]
dump_user_range+0x234/0x700 fs/coredump.c:915
elf_core_dump+0x2718/0x3590 fs/binfmt_elf.c:2137
do_coredump+0x2764/0x3c50 fs/coredump.c:762
get_signal+0x1bfa/0x2440 kernel/signal.c:2845
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
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: 0033:0x8de
RSP: 002b:0000000020000268 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f3175fabf80 RCX: 00007f3175e8c0f9
RDX: 0000000020000280 RSI: 0000000020000260 RDI: 0000000000002000
RBP: 00007f3175ee7ae9 R08: 0000000020000300 R09: 0000000020000300
R10: 00000000200002c0 R11: 0000000000000206 R12: 0000000000000000
R13: 00007ffcf54a294f R14: 00007f3176b32300 R15: 0000000000022000
INFO: task syz-executor.5:25194 blocked for more than 149 seconds.
Not tainted 6.2.0-rc8-syzkaller-00098-gec35307e18ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:23992 pid:25194 ppid:21169 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xbdd/0x54f0 kernel/sched/core.c:6606
schedule+0xde/0x1b0 kernel/sched/core.c:6682
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:192
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2639
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2687
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:3029
ext4_da_write_begin+0x170/0xb50 fs/ext4/inode.c:3056
generic_perform_write+0x256/0x570 mm/filemap.c:3772
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bf/0x1710 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:888 [inline]
dump_user_range+0x234/0x700 fs/coredump.c:915
elf_core_dump+0x2718/0x3590 fs/binfmt_elf.c:2137
do_coredump+0x2764/0x3c50 fs/coredump.c:762
get_signal+0x1bfa/0x2440 kernel/signal.c:2845
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
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: 0033:0x8de
RSP: 002b:0000000020000268 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fc1747abf80 RCX: 00007fc17468c0f9
RDX: 0000000020000280 RSI: 0000000020000260 RDI: 0000000000002000
RBP: 00007fc1746e7ae9 R08: 0000000020000300 R09: 0000000020000300
R10: 00000000200002c0 R11: 0000000000000206 R12: 0000000000000000
R13: 00007ffdc417775f R14: 00007fc17546d300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c791750 (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: ffffffff8c791450 (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: ffffffff8c7922a0 (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: ffff888017266938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888017266938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888017266938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888017266938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888017266938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888017266938 ((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: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
2 locks held by kworker/1:2/896:
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc900049afda8 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
2 locks held by getty/4743:
#0: ffff88802c12b098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
3 locks held by kworker/1:23/14691:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc90005107da8 (free_ipc_work){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffffffff8c79cf78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
#2: ffffffff8c79cf78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x5df/0x780 kernel/rcu/tree_exp.h:946
3 locks held by syz-executor.4/23808:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888030f90e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888030f90e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff88814b2000e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2684
3 locks held by syz-executor.5/25099:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888082ae4030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888082ae4030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff88814b2000e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2684
3 locks held by syz-executor.4/25109:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff88804720b628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88804720b628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff88814b2000e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2684
3 locks held by syz-executor.5/25148:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff8880312eac20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880312eac20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff88814b2000e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2684
3 locks held by syz-executor.4/25160:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff88803236de48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803236de48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff88814b2000e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2684
3 locks held by syz-executor.5/25194:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888081ba4a38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888081ba4a38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff88814b2000e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2684
1 lock held by syz-executor.1/27063:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.2/27086:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.5/27108:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.1/27260:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.1/27315:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.2/27350:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.2/27380:
1 lock held by syz-executor.1/27563:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.1/27596:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.5/28353:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.5/28681:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.0/28682:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
2 locks held by syz-executor.2/28684:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
#1: ffff88814b204990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfb4/0x14a0 fs/jbd2/transaction.c:461
1 lock held by syz-executor.1/28710:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.2/28711:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.0/28716:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.1/28743:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.5/28746:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.0/28959:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.5/28961:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.2/28962:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.1/28964:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.3/28966:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.4/28969:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.0/28984:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.2/28993:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
2 locks held by syz-executor.1/28994:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888082beca38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888082beca38 (&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.3/28998:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.0/29122:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
2 locks held by syz-executor.4/29135:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888082ae3628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888082ae3628 (&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.1/29136:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888030ec5e48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888030ec5e48 (&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.3/29143:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888082ae2c20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888082ae2c20 (&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.2/29147:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
2 locks held by syz-executor.0/29180:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888076938e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888076938e08 (&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.4/29191:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff88804e6a4a38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88804e6a4a38 (&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.1/29216:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.2/29219:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
2 locks held by syz-executor.3/29227:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888087527258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888087527258 (&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.4/29238:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.0/29242:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.5/29251:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
2 locks held by syz-executor.2/29293:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff88804bbe8400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88804bbe8400 (&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.1/29306:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.4/29308:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.0/29320:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
2 locks held by syz-executor.3/29330:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888030f96850 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888030f96850 (&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.2/29357:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff88805a73f258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88805a73f258 (&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.1/29361:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.5/29372:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
2 locks held by syz-executor.4/29374:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff88803133de48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803133de48 (&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.3/29386:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.2/29400:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
2 locks held by syz-executor.5/29405:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888047208400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888047208400 (&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.3/29430:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.1/29440:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.5/29497:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
2 locks held by syz-executor.3/29660:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff88805a73a218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88805a73a218 (&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.0/29663:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.4/29665:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.1/29669:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.2/29671:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
1 lock held by syz-executor.5/29685:
#0: ffff88814b202b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2581
2 locks held by syz-executor.0/30066:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff88805db78400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88805db78400 (&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.5/30072:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff8880470b8400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880470b8400 (&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.4/30235:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888087522218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888087522218 (&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.0/30241:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888087521810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888087521810 (&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.3/30244:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888087520e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888087520e08 (&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.5/30282:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff88805a4cd440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88805a4cd440 (&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.4/30289:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888082ae5440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888082ae5440 (&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.3/30293:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888082ae0e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888082ae0e08 (&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.0/30307:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888052775e48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888052775e48 (&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.1/30314:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888052772218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888052772218 (&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.4/30320:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff88804e6a2218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88804e6a2218 (&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.5/30336:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff888047209810 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888047209810 (&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.3/30342:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff8880470a5e48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880470a5e48 (&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.0/30350:
#0: ffff88814b200460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bfa/0x2440 kernel/signal.c:2845
#1: ffff88804720a218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88804720a218 (&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 6.2.0-rc8-syzkaller-00098-gec35307e18ba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 27139 Comm: kworker/u4:0 Not tainted 6.2.0-rc8-syzkaller-00098-gec35307e18ba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Workqueue: phy47 ieee80211_iface_work
RIP: 0010:write_comp_data+0x15/0x90 kernel/kcov.c:230
Code: ac 03 00 48 8b 80 60 15 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 65 8b 05 91 a7 82 7e 49 89 f1 89 c6 49 89 d2 81 e6 00 01 00 00 <49> 89 f8 65 48 8b 14 25 00 ac 03 00 a9 00 01 ff 00 74 0e 85 f6 74
RSP: 0018:ffffc900040ff540 EFLAGS: 00000246
RAX: 0000000080000000 RBX: 000000000000002b RCX: ffffffff8954c69c
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffffff8b7d08a0 R08: 0000000000000001 R09: 00000000000000ff
R10: 0000000000000001 R11: 0000000000094001 R12: 0000000000000001
R13: 0000000000000001 R14: 000000000000002b R15: 0000000000000008
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1730b35ab0 CR3: 00000000268b9000 CR4: 0000000000350ee0
Call Trace:
__sanitizer_cov_trace_switch+0x54/0x90 kernel/kcov.c:340
_ieee802_11_parse_elems_full+0x2ec/0x3130 net/mac80211/util.c:1085
ieee802_11_parse_elems_full+0x77b/0x1330 net/mac80211/util.c:1638
ieee802_11_parse_elems_crc.constprop.0+0x99/0xd0 net/mac80211/ieee80211_i.h:2260
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2267 [inline]
ieee80211_bss_info_update+0x410/0xaf0 net/mac80211/scan.c:212