INFO: task kworker/u4:3:46 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00061-g337a0a0b63f1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:3    state:D stack:21304 pid:46    ppid:2      flags:0x00004000
Workqueue: writeback wb_workfn (flush-7:5)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 io_schedule+0x83/0x100 kernel/sched/core.c:8723
 folio_wait_bit_common+0x83a/0x12a0 mm/filemap.c:1296
 write_cache_pages+0x47a/0x1340 mm/page-writeback.c:2327
 generic_writepages+0xe4/0x150 mm/page-writeback.c:2451
 do_writepages+0x3c3/0x680 mm/page-writeback.c:2469
 __writeback_single_inode+0xd1/0x670 fs/fs-writeback.c:1587
 writeback_sb_inodes+0xb3b/0x18f0 fs/fs-writeback.c:1870
 __writeback_inodes_wb+0x125/0x420 fs/fs-writeback.c:1941
 wb_writeback+0x440/0x7b0 fs/fs-writeback.c:2046
 wb_check_start_all fs/fs-writeback.c:2168 [inline]
 wb_do_writeback fs/fs-writeback.c:2194 [inline]
 wb_workfn+0x827/0xef0 fs/fs-writeback.c:2227
 process_one_work+0x877/0xdb0 kernel/workqueue.c:2289
 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
INFO: task syz-executor.3:4576 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00061-g337a0a0b63f1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:26968 pid:4576  ppid:3633   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 io_schedule+0x83/0x100 kernel/sched/core.c:8723
 bit_wait_io+0xe/0xc0 kernel/sched/wait_bit.c:209
 __wait_on_bit_lock+0xbb/0x1a0 kernel/sched/wait_bit.c:90
 out_of_line_wait_on_bit_lock+0x1c3/0x240 kernel/sched/wait_bit.c:117
 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline]
 __lock_buffer fs/buffer.c:69 [inline]
 lock_buffer include/linux/buffer_head.h:397 [inline]
 __block_write_full_page+0x61e/0x1710 fs/buffer.c:1770
 __writepage+0x60/0x120 mm/page-writeback.c:2425
 write_cache_pages+0x7cd/0x1340 mm/page-writeback.c:2360
 generic_writepages+0xe4/0x150 mm/page-writeback.c:2451
 do_writepages+0x3c3/0x680 mm/page-writeback.c:2469
 filemap_fdatawrite_wbc+0x11e/0x170 mm/filemap.c:388
 __filemap_fdatawrite_range mm/filemap.c:421 [inline]
 __filemap_fdatawrite mm/filemap.c:427 [inline]
 filemap_fdatawrite+0x146/0x1d0 mm/filemap.c:432
 sync_bdevs+0x242/0x320 block/bdev.c:1064
 ksys_sync+0xdc/0x1c0 fs/sync.c:105
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f127108b5f9
RSP: 002b:00007f127210d168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f12711ac050 RCX: 00007f127108b5f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f12710e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff32a96b0f R14: 00007f127210d300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.3:4580 blocked for more than 144 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00061-g337a0a0b63f1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:27640 pid:4580  ppid:3633   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6638
 __mutex_lock_common+0xe4f/0x26e0 kernel/locking/mutex.c:679
 __mutex_lock kernel/locking/mutex.c:747 [inline]
 mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
 sync_bdevs+0x1b0/0x320 block/bdev.c:1052
 ksys_sync+0xdc/0x1c0 fs/sync.c:105
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f127108b5f9
RSP: 002b:00007f12707ff168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f12711ac120 RCX: 00007f127108b5f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f12710e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff32a96b0f R14: 00007f12707ff300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.3:4584 blocked for more than 144 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00061-g337a0a0b63f1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:28408 pid:4584  ppid:3633   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6638
 __mutex_lock_common+0xe4f/0x26e0 kernel/locking/mutex.c:679
 __mutex_lock kernel/locking/mutex.c:747 [inline]
 mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
 sync_bdevs+0x1b0/0x320 block/bdev.c:1052
 ksys_sync+0xdc/0x1c0 fs/sync.c:105
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f127108b5f9
RSP: 002b:00007f12707de168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f12711ac1f0 RCX: 00007f127108b5f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f12710e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff32a96b0f R14: 00007f12707de300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.5:4563 blocked for more than 144 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00061-g337a0a0b63f1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:25208 pid:4563  ppid:3630   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 io_schedule+0x83/0x100 kernel/sched/core.c:8723
 bit_wait_io+0xe/0xc0 kernel/sched/wait_bit.c:209
 __wait_on_bit_lock+0xbb/0x1a0 kernel/sched/wait_bit.c:90
 out_of_line_wait_on_bit_lock+0x1c3/0x240 kernel/sched/wait_bit.c:117
 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline]
 __lock_buffer fs/buffer.c:69 [inline]
 lock_buffer include/linux/buffer_head.h:397 [inline]
 __sync_dirty_buffer+0x107/0x330 fs/buffer.c:2732
 __ext4_handle_dirty_metadata+0x29a/0x810 fs/ext4/ext4_jbd2.c:381
 ext4_handle_dirty_dirblock+0x363/0x6b0 fs/ext4/namei.c:438
 ext4_finish_convert_inline_dir+0x58a/0x700 fs/ext4/inline.c:1182
 ext4_convert_inline_data_nolock+0x63c/0x820 fs/ext4/inline.c:1259
 ext4_try_add_inline_entry+0x683/0x990 fs/ext4/inline.c:1332
 ext4_add_entry+0x5a4/0xeb0 fs/ext4/namei.c:2377
 ext4_mkdir+0x557/0xcf0 fs/ext4/namei.c:2999
 vfs_mkdir+0x3b3/0x590 fs/namei.c:4035
 ovl_do_mkdir fs/overlayfs/overlayfs.h:186 [inline]
 ovl_mkdir_real+0xcf/0x2c0 fs/overlayfs/dir.c:146
 ovl_create_real+0x308/0x4f0 fs/overlayfs/dir.c:193
 ovl_create_upper fs/overlayfs/dir.c:335 [inline]
 ovl_create_or_link+0x8ea/0x1670 fs/overlayfs/dir.c:613
 ovl_create_object+0x23e/0x370 fs/overlayfs/dir.c:649
 vfs_mkdir+0x3b3/0x590 fs/namei.c:4035
 do_mkdirat+0x279/0x550 fs/namei.c:4060
 __do_sys_mkdirat fs/namei.c:4075 [inline]
 __se_sys_mkdirat fs/namei.c:4073 [inline]
 __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4073
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fdd8948b5f9
RSP: 002b:00007fdd8a6ba168 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fdd895abf80 RCX: 00007fdd8948b5f9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 00007fdd894e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffa2352bcf R14: 00007fdd8a6ba300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.5:4606 blocked for more than 145 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00061-g337a0a0b63f1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:29112 pid:4606  ppid:3630   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 rwsem_down_read_slowpath+0x5f9/0x930 kernel/locking/rwsem.c:1095
 __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260
 inode_lock_shared include/linux/fs.h:766 [inline]
 lookup_slow+0x45/0x70 fs/namei.c:1701
 walk_component fs/namei.c:1993 [inline]
 link_path_walk+0xa06/0xf00 fs/namei.c:2320
 path_parentat fs/namei.c:2521 [inline]
 filename_parentat+0x274/0x6c0 fs/namei.c:2544
 do_renameat2+0x2f1/0x1370 fs/namei.c:4847
 __do_sys_rename fs/namei.c:4975 [inline]
 __se_sys_rename fs/namei.c:4973 [inline]
 __x64_sys_rename+0x82/0x90 fs/namei.c:4973
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fdd8948b5f9
RSP: 002b:00007fdd8a657168 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007fdd895ac1f0 RCX: 00007fdd8948b5f9
RDX: 0000000000000000 RSI: 0000000020000300 RDI: 00000000200001c0
RBP: 00007fdd894e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffa2352bcf R14: 00007fdd8a657300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.2:4589 blocked for more than 145 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00061-g337a0a0b63f1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:26616 pid:4589  ppid:3629   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 wb_wait_for_completion+0x155/0x280 fs/fs-writeback.c:191
 sync_inodes_sb+0x283/0xaa0 fs/fs-writeback.c:2706
 iterate_supers+0x137/0x1f0 fs/super.c:723
 ksys_sync+0xb7/0x1c0 fs/sync.c:102
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0640a8b5f9
RSP: 002b:00007f0641c13168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f0640babf80 RCX: 00007f0640a8b5f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f0640ae67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd92c7e79f R14: 00007f0641c13300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.4:4611 blocked for more than 145 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00061-g337a0a0b63f1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:29432 pid:4611  ppid:3631   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
 __down_write_common kernel/locking/rwsem.c:1305 [inline]
 __down_write kernel/locking/rwsem.c:1314 [inline]
 down_write+0x231/0x270 kernel/locking/rwsem.c:1563
 bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
 sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
 iterate_supers+0x137/0x1f0 fs/super.c:723
 ksys_sync+0xb7/0x1c0 fs/sync.c:102
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f633e88b5f9
RSP: 002b:00007f633f986168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f633e9ac050 RCX: 00007f633e88b5f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f633e8e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe2e99858f R14: 00007f633f986300 R15: 0000000000022000
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc2-syzkaller-00061-g337a0a0b63f1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
 nmi_cpu_backtrace+0x46f/0x4f0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1ba/0x420 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+0xcf5/0xd40 kernel/hung_task.c:377
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted 6.1.0-rc2-syzkaller-00061-g337a0a0b63f1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:121 [inline]
RIP: 0010:rcu_is_watching+0xc/0xb0 kernel/rcu/tree.c:719
Code: c7 c7 80 8d b2 8c 4c 89 e6 e8 c0 25 f9 02 e9 48 ff ff ff e8 a6 fe c2 08 66 0f 1f 44 00 00 41 57 41 56 53 65 ff 05 8c bb 91 7e <e8> 1f 15 c3 08 89 c3 83 f8 08 73 75 49 bf 00 00 00 00 00 fc ff df
RSP: 0018:ffffc900000e7a20 EFLAGS: 00000282
RAX: 1f957c693ba84a00 RBX: 0000000000000000 RCX: ffffffff8167869e
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e0daf68
RBP: ffffc900000e7b80 R08: dffffc0000000000 R09: fffffbfff1c1b5ee
R10: fffffbfff1c1b5ee R11: 1ffffffff1c1b5ed R12: ffff888075567000
R13: dffffc0000000000 R14: ffff888089a3c000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c012d7fda8 CR3: 000000000c88e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rcu_read_lock include/linux/rcupdate.h:739 [inline]
 batadv_iv_ogm_slide_own_bcast_window net/batman-adv/bat_iv_ogm.c:755 [inline]
 batadv_iv_ogm_schedule_buff net/batman-adv/bat_iv_ogm.c:826 [inline]
 batadv_iv_ogm_schedule+0x427/0x1020 net/batman-adv/bat_iv_ogm.c:869
 batadv_iv_send_outstanding_bat_ogm_packet+0x741/0x850 net/batman-adv/bat_iv_ogm.c:1713
 process_one_work+0x877/0xdb0 kernel/workqueue.c:2289
 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>