INFO: task syz-executor.3:5095 blocked for more than 143 seconds.
Not tainted 6.2.0-syzkaller-02172-g9e58df973d22 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:20920 pid:5095 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0x17c0/0x4970 kernel/sched/core.c:6617
schedule+0xc3/0x180 kernel/sched/core.c:6693
io_schedule+0x8c/0x100 kernel/sched/core.c:8879
folio_wait_bit_common+0x86c/0x12b0 mm/filemap.c:1297
__filemap_get_folio+0x418/0xe10 mm/filemap.c:1932
truncate_inode_pages_range+0x554/0x11d0 mm/truncate.c:377
ntfs_evict_big_inode+0x30/0x480 fs/ntfs/inode.c:2251
evict+0x2a4/0x620 fs/inode.c:665
dispose_list fs/inode.c:698 [inline]
evict_inodes+0x5f8/0x690 fs/inode.c:748
generic_shutdown_super+0x98/0x340 fs/super.c:479
kill_block_super+0x7e/0xe0 fs/super.c:1398
deactivate_locked_super+0xa4/0x110 fs/super.c:331
cleanup_mnt+0x490/0x520 fs/namespace.c:1177
task_work_run+0x24a/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x64/0x2e0 kernel/entry/common.c:296
do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2b5ae8d567
RSP: 002b:00007fff94a39428 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f2b5ae8d567
RDX: 00007fff94a394fb RSI: 000000000000000a RDI: 00007fff94a394f0
RBP: 00007fff94a394f0 R08: 00000000ffffffff R09: 00007fff94a392c0
R10: 000055555558a8b3 R11: 0000000000000246 R12: 00007f2b5aee6b24
R13: 00007fff94a3a5b0 R14: 000055555558a810 R15: 00007fff94a3a5f0
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cf274b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xce0 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cf27cb0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xce0 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8cf272e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/4736:
#0: ffff88802be6b098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.3/5095:
#0: ffff888017f8c0e0 (&type->s_umount_key#53){+.+.}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:361
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-syzkaller-02172-g9e58df973d22 #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+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e5/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b4/0x3f0 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+0xf70/0xfb0 kernel/hung_task.c:377
kthread+0x270/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5434 Comm: kworker/u4:8 Not tainted 6.2.0-syzkaller-02172-g9e58df973d22 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:__rcu_read_lock+0x44/0xb0 kernel/rcu/tree_plugin.h:402
Code: 8e 7e 49 81 c7 3c 04 00 00 4c 89 fb 48 c1 eb 03 42 0f b6 04 33 84 c0 75 2f 41 8b 2f ff c5 42 0f b6 04 33 84 c0 75 38 41 89 2f <42> 0f b6 04 33 84 c0 75 43 41 8b 07 3d 00 00 00 40 7d 07 5b 41 5e
RSP: 0018:ffffc900057efbd0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff1100fdf0b7f RCX: ffff88807ef857c0
RDX: 0000000000000000 RSI: ffffffff8aea8a40 RDI: ffffffff8b384b80
RBP: 0000000000000001 R08: dffffc0000000000 R09: fffffbfff1ca5dae
R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000007c
R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff88807ef85bfc
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b2b5c16680 CR3: 000000002272d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_lock include/linux/rcupdate.h:762 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0xc5/0x580 net/batman-adv/network-coding.c:719
process_one_work+0x8fa/0x1370 kernel/workqueue.c:2289
worker_thread+0xa63/0x1210 kernel/workqueue.c:2436
kthread+0x270/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308