INFO: task syz-executor.0:26136 blocked for more than 143 seconds.
Not tainted 6.6.0-rc6-syzkaller-00043-gdd72f9c7e512 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:23536 pid:26136 ppid:18149 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
wb_wait_for_completion+0x1ae/0x270 fs/fs-writeback.c:192
__writeback_inodes_sb_nr+0x1d8/0x270 fs/fs-writeback.c:2655
try_to_writeback_inodes_sb+0x97/0xc0 fs/fs-writeback.c:2703
ext4_nonda_switch+0x1a9/0x1f0 fs/ext4/inode.c:2836
ext4_da_write_begin+0x16e/0x8c0 fs/ext4/inode.c:2863
generic_perform_write+0x278/0x600 mm/filemap.c:3969
ext4_buffered_write_iter+0x11f/0x3c0 fs/ext4/file.c:299
ext4_file_write_iter+0x7f7/0x1860 fs/ext4/file.c:717
__kernel_write_iter+0x261/0x7e0 fs/read_write.c:517
dump_emit_page fs/coredump.c:888 [inline]
dump_user_range+0x299/0x790 fs/coredump.c:915
elf_core_dump+0x2700/0x3900 fs/binfmt_elf.c:2142
do_coredump+0x2c96/0x3fc0 fs/coredump.c:764
get_signal+0x2434/0x2790 kernel/signal.c:2878
arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7f866287caf1
RSP: 002b:0000000020000060 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f866299bf80 RCX: 00007f866287cae9
RDX: 0000000020000080 RSI: 0000000020000060 RDI: 0000000000000200
RBP: 00007f86628c847a R08: 0000000020000100 R09: 0000000020000100
R10: 00000000200000c0 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007f866299bf80 R15: 00007ffe75571078
INFO: task syz-executor.2:26145 blocked for more than 143 seconds.
Not tainted 6.6.0-rc6-syzkaller-00043-gdd72f9c7e512 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:23248 pid:26145 ppid:24953 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
wb_wait_for_completion+0x1ae/0x270 fs/fs-writeback.c:192
__writeback_inodes_sb_nr+0x1d8/0x270 fs/fs-writeback.c:2655
try_to_writeback_inodes_sb+0x97/0xc0 fs/fs-writeback.c:2703
ext4_nonda_switch+0x1a9/0x1f0 fs/ext4/inode.c:2836
ext4_da_write_begin+0x16e/0x8c0 fs/ext4/inode.c:2863
generic_perform_write+0x278/0x600 mm/filemap.c:3969
ext4_buffered_write_iter+0x11f/0x3c0 fs/ext4/file.c:299
ext4_file_write_iter+0x7f7/0x1860 fs/ext4/file.c:717
__kernel_write_iter+0x261/0x7e0 fs/read_write.c:517
dump_emit_page fs/coredump.c:888 [inline]
dump_user_range+0x299/0x790 fs/coredump.c:915
elf_core_dump+0x2700/0x3900 fs/binfmt_elf.c:2142
do_coredump+0x2c96/0x3fc0 fs/coredump.c:764
get_signal+0x2434/0x2790 kernel/signal.c:2878
arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7f656a67caf1
RSP: 002b:0000000020000310 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f656a79bf80 RCX: 00007f656a67cae9
RDX: 0000000020000340 RSI: 0000000020000310 RDI: 0000000000100000
RBP: 00007f656a6c847a R08: 00000000200003c0 R09: 00000000200003c0
R10: 0000000020000380 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007f656a79bf80 R15: 00007ffccc1bc4f8
INFO: task syz-executor.5:26365 blocked for more than 144 seconds.
Not tainted 6.6.0-rc6-syzkaller-00043-gdd72f9c7e512 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:22752 pid:26365 ppid:24944 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
wb_wait_for_completion+0x1ae/0x270 fs/fs-writeback.c:192
__writeback_inodes_sb_nr+0x1d8/0x270 fs/fs-writeback.c:2655
try_to_writeback_inodes_sb+0x97/0xc0 fs/fs-writeback.c:2703
ext4_nonda_switch+0x1a9/0x1f0 fs/ext4/inode.c:2836
ext4_da_write_begin+0x16e/0x8c0 fs/ext4/inode.c:2863
generic_perform_write+0x278/0x600 mm/filemap.c:3969
ext4_buffered_write_iter+0x11f/0x3c0 fs/ext4/file.c:299
ext4_file_write_iter+0x7f7/0x1860 fs/ext4/file.c:717
__kernel_write_iter+0x261/0x7e0 fs/read_write.c:517
dump_emit_page fs/coredump.c:888 [inline]
dump_user_range+0x299/0x790 fs/coredump.c:915
elf_core_dump+0x2700/0x3900 fs/binfmt_elf.c:2142
do_coredump+0x2c96/0x3fc0 fs/coredump.c:764
get_signal+0x2434/0x2790 kernel/signal.c:2878
arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7fcb08c7caf1
RSP: 002b:0000000020000310 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fcb08d9bf80 RCX: 00007fcb08c7cae9
RDX: 0000000020000340 RSI: 0000000020000310 RDI: 0000000000100000
RBP: 00007fcb08cc847a R08: 00000000200003c0 R09: 00000000200003c0
R10: 0000000020000380 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007fcb08d9bf80 R15: 00007ffc4484a028
INFO: task syz-executor.2:26431 blocked for more than 144 seconds.
Not tainted 6.6.0-rc6-syzkaller-00043-gdd72f9c7e512 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:23376 pid:26431 ppid:24953 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
wb_wait_for_completion+0x1ae/0x270 fs/fs-writeback.c:192
__writeback_inodes_sb_nr+0x1d8/0x270 fs/fs-writeback.c:2655
try_to_writeback_inodes_sb+0x97/0xc0 fs/fs-writeback.c:2703
ext4_nonda_switch+0x1a9/0x1f0 fs/ext4/inode.c:2836
ext4_da_write_begin+0x16e/0x8c0 fs/ext4/inode.c:2863
generic_perform_write+0x278/0x600 mm/filemap.c:3969
ext4_buffered_write_iter+0x11f/0x3c0 fs/ext4/file.c:299
ext4_file_write_iter+0x7f7/0x1860 fs/ext4/file.c:717
__kernel_write_iter+0x261/0x7e0 fs/read_write.c:517
dump_emit_page fs/coredump.c:888 [inline]
dump_user_range+0x299/0x790 fs/coredump.c:915
elf_core_dump+0x2700/0x3900 fs/binfmt_elf.c:2142
do_coredump+0x2c96/0x3fc0 fs/coredump.c:764
get_signal+0x2434/0x2790 kernel/signal.c:2878
arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7f656a67caf1
RSP: 002b:0000000020000310 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f656a79bf80 RCX: 00007f656a67cae9
RDX: 0000000020000340 RSI: 0000000020000310 RDI: 0000000000100000
RBP: 00007f656a6c847a R08: 00000000200003c0 R09: 00000000200003c0
R10: 0000000020000380 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007f656a79bf80 R15: 00007ffccc1bc4f8
INFO: task syz-executor.0:26433 blocked for more than 146 seconds.
Not tainted 6.6.0-rc6-syzkaller-00043-gdd72f9c7e512 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:23056 pid:26433 ppid:18149 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
wb_wait_for_completion+0x1ae/0x270 fs/fs-writeback.c:192
__writeback_inodes_sb_nr+0x1d8/0x270 fs/fs-writeback.c:2655
try_to_writeback_inodes_sb+0x97/0xc0 fs/fs-writeback.c:2703
ext4_nonda_switch+0x1a9/0x1f0 fs/ext4/inode.c:2836
ext4_da_write_begin+0x16e/0x8c0 fs/ext4/inode.c:2863
generic_perform_write+0x278/0x600 mm/filemap.c:3969
ext4_buffered_write_iter+0x11f/0x3c0 fs/ext4/file.c:299
ext4_file_write_iter+0x7f7/0x1860 fs/ext4/file.c:717
__kernel_write_iter+0x261/0x7e0 fs/read_write.c:517
dump_emit_page fs/coredump.c:888 [inline]
dump_user_range+0x299/0x790 fs/coredump.c:915
elf_core_dump+0x2700/0x3900 fs/binfmt_elf.c:2142
do_coredump+0x2c96/0x3fc0 fs/coredump.c:764
get_signal+0x2434/0x2790 kernel/signal.c:2878
arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7f866287caf1
RSP: 002b:0000000020000310 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f866299bf80 RCX: 00007f866287cae9
RDX: 0000000020000340 RSI: 0000000020000310 RDI: 0000000000100000
RBP: 00007f86628c847a R08: 00000000200003c0 R09: 00000000200003c0
R10: 0000000020000380 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007f866299bf80 R15: 00007ffe75571078
INFO: task syz-executor.1:26494 blocked for more than 147 seconds.
Not tainted 6.6.0-rc6-syzkaller-00043-gdd72f9c7e512 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:22784 pid:26494 ppid:26000 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
wb_wait_for_completion+0x1ae/0x270 fs/fs-writeback.c:192
__writeback_inodes_sb_nr+0x1d8/0x270 fs/fs-writeback.c:2655
try_to_writeback_inodes_sb+0x97/0xc0 fs/fs-writeback.c:2703
ext4_nonda_switch+0x1a9/0x1f0 fs/ext4/inode.c:2836
ext4_da_write_begin+0x16e/0x8c0 fs/ext4/inode.c:2863
generic_perform_write+0x278/0x600 mm/filemap.c:3969
ext4_buffered_write_iter+0x11f/0x3c0 fs/ext4/file.c:299
ext4_file_write_iter+0x7f7/0x1860 fs/ext4/file.c:717
__kernel_write_iter+0x261/0x7e0 fs/read_write.c:517
dump_emit_page fs/coredump.c:888 [inline]
dump_user_range+0x299/0x790 fs/coredump.c:915
elf_core_dump+0x2700/0x3900 fs/binfmt_elf.c:2142
do_coredump+0x2c96/0x3fc0 fs/coredump.c:764
get_signal+0x2434/0x2790 kernel/signal.c:2878
arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7f5ceb67caf1
RSP: 002b:0000000020000310 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f5ceb79bf80 RCX: 00007f5ceb67cae9
RDX: 0000000020000340 RSI: 0000000020000310 RDI: 0000000000100000
RBP: 00007f5ceb6c847a R08: 00000000200003c0 R09: 00000000200003c0
R10: 0000000020000380 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007f5ceb79bf80 R15: 00007ffe2a12d718
Showing all locks held in the system:
1 lock held by ksoftirqd/0/16:
#0: ffff8880b983c718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:558
1 lock held by khungtaskd/29:
#0: ffffffff8cbab2e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:303 [inline]
#0: ffffffff8cbab2e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:749 [inline]
#0: ffffffff8cbab2e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6613
4 locks held by kworker/u4:3/48:
#0: ffff88814b386938 ((wq_completion)ext4-rsv-conversion){+.+.}-{0:0}, at: process_one_work+0x787/0x15c0 kernel/workqueue.c:2605
#1: ffffc90000b8fd80 ((work_completion)(&ei->i_rsv_conversion_work)){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 kernel/workqueue.c:2606
#2: ffff88802615e988 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x10d6/0x15e0 fs/jbd2/transaction.c:463
#3: ffff88803c713488 (&ei->i_data_sem){++++}-{3:3}, at: ext4_map_blocks+0x5a7/0x1770 fs/ext4/inode.c:614
3 locks held by klogd/4480:
#0: ffff8880b983c718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:558
#1: ffff8880b983c718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:558
#2: ffff88807e9c4580 (&p->pi_lock){-.-.}-{2:2}, at: class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:518 [inline]
#2: ffff88807e9c4580 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0xb0/0x15b0 kernel/sched/core.c:4230
2 locks held by getty/4788:
#0: ffff88802660f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc5/0x1480 drivers/tty/n_tty.c:2206
3 locks held by kworker/u4:1/22499:
#0: ffff888018243138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x787/0x15c0 kernel/workqueue.c:2605
#1: ffffc9000a397d80 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 kernel/workqueue.c:2606
#2: ffff88802615cbd8 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1b4/0x690 mm/page-writeback.c:2553
3 locks held by syz-executor.0/26136:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff88803e7e4000 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88803e7e4000 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.2/26145:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888054954000 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888054954000 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.5/26365:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888086b3d400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888086b3d400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.2/26431:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff88803e654a00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88803e654a00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.0/26433:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888056800400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888056800400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.1/26494:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff88804fd0a200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88804fd0a200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.1/26539:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff88808659f200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88808659f200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.2/26557:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff88803c715400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88803c715400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.0/26586:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff88804029d400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88804029d400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.0/26619:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888042dcf200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888042dcf200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.2/26625:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff88804b791800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88804b791800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.1/26633:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888086531800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888086531800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.1/26699:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888086fab600 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888086fab600 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.2/26732:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff88804fd09800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88804fd09800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.1/26756:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888040267200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888040267200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.1/26759:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888075714000 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888075714000 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.2/26771:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff8880393b4000 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff8880393b4000 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.2/26777:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888035a7e800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888035a7e800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by kworker/u4:2/26782:
#0: ffff8880b993c718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:558
#1: ffff8880b9928888 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x2d9/0x900 kernel/sched/psi.c:999
#2: ffffffff8ca50230 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_enable+0x12/0x20 kernel/jump_label.c:217
3 locks held by syz-executor.0/26845:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888040266800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888040266800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.2/26857:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff8880845dde00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff8880845dde00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.2/26861:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff88804ffe7200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88804ffe7200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.0/26898:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888035b3a200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888035b3a200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.1/26900:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888086b3b600 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888086b3b600 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.2/26925:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888056805400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888056805400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.1/26950:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888047d30400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888047d30400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.1/26955:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff88803e653600 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88803e653600 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.0/26961:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888035b3e800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888035b3e800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.0/26977:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff88803e7e0400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88803e7e0400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.1/26988:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff8880569fca00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff8880569fca00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.2/26991:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888042dc8e00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888042dc8e00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.1/27003:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888035a7d400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888035a7d400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.1/27004:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff8880400de800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff8880400de800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.0/27014:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff88804ffe2c00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88804ffe2c00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615e3f0 (&journal->j_checkpoint_mutex){+.+.}-{3:3}, at: __jbd2_log_wait_for_space+0x21b/0x480 fs/jbd2/checkpoint.c:59
3 locks held by syz-executor.2/27017:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888040260e00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888040260e00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.0/27056:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888047c64a00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888047c64a00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.1/27068:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888047c61800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888047c61800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
3 locks held by syz-executor.2/27077:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888041b1a200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888041b1a200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615a0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2700
1 lock held by syz-executor.4/28447:
#0: ffff88802615cbd8 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1b4/0x690 mm/page-writeback.c:2553
1 lock held by syz-executor.4/28462:
#0: ffff88802615cbd8 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1b4/0x690 mm/page-writeback.c:2553
2 locks held by syz-executor.4/28478:
#0: ffff88802615a600 (sb_internal){.+.+}-{0:0}, at: evict+0x2ed/0x6b0 fs/inode.c:664
#1: ffff88802615e3f0 (&journal->j_checkpoint_mutex){+.+.}-{3:3}, at: __jbd2_log_wait_for_space+0x21b/0x480 fs/jbd2/checkpoint.c:59
1 lock held by syz-executor.4/28648:
#0: ffff88802615cbd8 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1b4/0x690 mm/page-writeback.c:2553
2 locks held by syz-executor.0/28652:
#0: ffff88802615cbd8 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1b4/0x690 mm/page-writeback.c:2553
#1: ffff88802615e3f0 (&journal->j_checkpoint_mutex){+.+.}-{3:3}, at: __jbd2_log_wait_for_space+0x21b/0x480 fs/jbd2/checkpoint.c:59
1 lock held by syz-executor.1/28709:
#0: ffff88802615cbd8 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1b4/0x690 mm/page-writeback.c:2553
2 locks held by syz-executor.3/28737:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888039215e00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888039215e00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
1 lock held by syz-executor.5/28744:
#0: ffff88802615cbd8 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1b4/0x690 mm/page-writeback.c:2553
3 locks held by syz-executor.4/28746:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff88804ffe1800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88804ffe1800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615e3f0 (&journal->j_checkpoint_mutex){+.+.}-{3:3}, at: __jbd2_log_wait_for_space+0x21b/0x480 fs/jbd2/checkpoint.c:59
3 locks held by syz-executor.4/28782:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888047c64000 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888047c64000 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615e3f0 (&journal->j_checkpoint_mutex){+.+.}-{3:3}, at: __jbd2_log_wait_for_space+0x21b/0x480 fs/jbd2/checkpoint.c:59
2 locks held by syz-executor.3/28788:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888047c65e00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888047c65e00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
2 locks held by syz-executor.5/28795:
#0: ffff88802615a600 (sb_internal){.+.+}-{0:0}, at: evict+0x2ed/0x6b0 fs/inode.c:664
#1: ffff88802615e3f0 (&journal->j_checkpoint_mutex){+.+.}-{3:3}, at: __jbd2_log_wait_for_space+0x21b/0x480 fs/jbd2/checkpoint.c:59
1 lock held by syz-executor.5/28807:
#0: ffff88802615cbd8 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1b4/0x690 mm/page-writeback.c:2553
2 locks held by syz-executor.0/28845:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888075713600 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888075713600 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
3 locks held by syz-executor.4/28848:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888042dcde00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888042dcde00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615e3f0 (&journal->j_checkpoint_mutex){+.+.}-{3:3}, at: __jbd2_log_wait_for_space+0x21b/0x480 fs/jbd2/checkpoint.c:59
3 locks held by syz-executor.4/28861:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888075717200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888075717200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615e3f0 (&journal->j_checkpoint_mutex){+.+.}-{3:3}, at: __jbd2_log_wait_for_space+0x21b/0x480 fs/jbd2/checkpoint.c:59
1 lock held by syz-executor.1/28960:
#0: ffff88802615cbd8 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1b4/0x690 mm/page-writeback.c:2553
2 locks held by syz-executor.3/28970:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888035a7ca00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888035a7ca00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
2 locks held by syz-executor.3/28974:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff88804029b600 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88804029b600 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
1 lock held by syz-executor.0/28977:
#0: ffff88802615cbd8 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1b4/0x690 mm/page-writeback.c:2553
3 locks held by syz-executor.4/28979:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff888035a7b600 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888035a7b600 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615e3f0 (&journal->j_checkpoint_mutex){+.+.}-{3:3}, at: __jbd2_log_wait_for_space+0x21b/0x480 fs/jbd2/checkpoint.c:59
3 locks held by syz-executor.4/28983:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff88804b797200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88804b797200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
#2: ffff88802615e3f0 (&journal->j_checkpoint_mutex){+.+.}-{3:3}, at: __jbd2_log_wait_for_space+0x21b/0x480 fs/jbd2/checkpoint.c:59
2 locks held by syz-executor.3/28985:
#0: ffff88802615a410 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x2434/0x2790 kernel/signal.c:2878
#1: ffff88804029c000 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88804029c000 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x3c0 fs/ext4/file.c:294
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.6.0-rc6-syzkaller-00043-gdd72f9c7e512 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x299/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xf87/0x1210 kernel/hung_task.c:379
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1073 Comm: kworker/u4:7 Not tainted 6.6.0-rc6-syzkaller-00043-gdd72f9c7e512 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
RIP: 0010:lock_acquire+0x74/0x510 kernel/locking/lockdep.c:5721
Code: 24 18 d3 37 4c 8c 48 c7 44 24 20 d0 94 68 81 c7 00 f1 f1 f1 f1 c7 40 04 f1 f1 00 00 c7 40 08 00 00 00 f3 c7 40 0c f3 f3 f3 f3 <65> 48 8b 04 25 28 00 00 00 48 89 84 24 a8 00 00 00 31 c0 0f 1f 44
RSP: 0018:ffffc900045ffa98 EFLAGS: 00000286
RAX: fffff520008bff55 RBX: 1ffff920008bff55 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8cbab2e0
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000400 R11: 000000003eebce57 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff8cbab2e0 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcb08d77978 CR3: 000000000c976000 CR4: 0000000000350ef0
Call Trace:
rcu_lock_acquire include/linux/rcupdate.h:303 [inline]
rcu_read_lock include/linux/rcupdate.h:749 [inline]
batadv_iv_ogm_slide_own_bcast_window net/batman-adv/bat_iv_ogm.c:754 [inline]
batadv_iv_ogm_schedule_buff+0x5ac/0x14f0 net/batman-adv/bat_iv_ogm.c:825
batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:868 [inline]
batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:861 [inline]
batadv_iv_send_outstanding_bat_ogm_packet+0x31e/0x8c0 net/batman-adv/bat_iv_ogm.c:1712
process_one_work+0x884/0x15c0 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304