INFO: task syz-executor372:3630 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc8-syzkaller-00152-g3ecc37918c80 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor372 state:D stack:26320 pid:3630  ppid:3629   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6521
 schedule+0xde/0x1b0 kernel/sched/core.c:6597
 io_schedule+0xbe/0x130 kernel/sched/core.c:8741
 bit_wait_io+0x16/0xe0 kernel/sched/wait_bit.c:209
 __wait_on_bit_lock+0x11f/0x1a0 kernel/sched/wait_bit.c:90
 out_of_line_wait_on_bit_lock+0xd9/0x110 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+0x30e/0x380 fs/buffer.c:2732
 __ext4_handle_dirty_metadata+0x2b7/0x6f0 fs/ext4/ext4_jbd2.c:381
 ext4_convert_inline_data_nolock+0x6e6/0xf10 fs/ext4/inline.c:1256
 ext4_convert_inline_data+0x517/0x5f0 fs/ext4/inline.c:2067
 ext4_fallocate+0x19a/0x4220 fs/ext4/extents.c:4702
 vfs_fallocate+0x48b/0xe00 fs/open.c:323
 ksys_fallocate fs/open.c:346 [inline]
 __do_sys_fallocate fs/open.c:354 [inline]
 __se_sys_fallocate fs/open.c:352 [inline]
 __x64_sys_fallocate+0xd3/0x140 fs/open.c:352
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb7f06bd529
RSP: 002b:00007ffd4b1f2598 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb7f06bd529
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000003
R10: 0000000000000005 R11: 0000000000000246 R12: 00007ffd4b1f25d0
R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff8c58f070 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
 #0: ffffffff8c58ed70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
 #0: ffffffff8c58fbc0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x264 kernel/locking/lockdep.c:6494
2 locks held by getty/3306:
 #0: ffff888027999098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
 #1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
3 locks held by syz-executor372/3630:
 #0: ffff888024d12460 (sb_writers#4){.+.+}-{0:0}, at: ksys_fallocate fs/open.c:346 [inline]
 #0: ffff888024d12460 (sb_writers#4){.+.+}-{0:0}, at: __do_sys_fallocate fs/open.c:354 [inline]
 #0: ffff888024d12460 (sb_writers#4){.+.+}-{0:0}, at: __se_sys_fallocate fs/open.c:352 [inline]
 #0: ffff888024d12460 (sb_writers#4){.+.+}-{0:0}, at: __x64_sys_fallocate+0xd3/0x140 fs/open.c:352
 #1: ffff8880738eca38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
 #1: ffff8880738eca38 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_fallocate+0x192/0x4220 fs/ext4/extents.c:4701
 #2: ffff8880738ec700 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
 #2: ffff8880738ec700 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x34f/0x5f0 fs/ext4/inline.c:2065

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc8-syzkaller-00152-g3ecc37918c80 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 <TASK>
 __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:306
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.1.0-rc8-syzkaller-00152-g3ecc37918c80 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:pm_qos_read_value+0x26/0x40 kernel/power/qos.c:55
Code: 00 00 00 00 66 0f 1f 00 53 48 89 fb e8 e3 94 1c 00 48 8d 7b 10 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 <84> c0 74 04 3c 03 7e 05 8b 43 10 5b c3 e8 c8 6e 69 00 eb f4 66 0f
RSP: 0018:ffffc90000177cd8 EFLAGS: 00000012
RAX: 0000000000000000 RBX: ffff88801770f800 RCX: 0000000000000000
RDX: 1ffff11002ee1f02 RSI: ffffffff8163891d RDI: ffff88801770f810
RBP: ffff88801770f800 R08: 0000000000000007 R09: fffffffffffff000
R10: ffff88801770f800 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000001 R14: ffffffff8e51a750 R15: ffff88801927e800
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055cd26e94680 CR3: 000000000c28e000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 dev_pm_qos_raw_resume_latency include/linux/pm_qos.h:209 [inline]
 cpuidle_governor_latency_req+0x6b/0xb0 drivers/cpuidle/governor.c:112
 menu_select+0x113/0x1910 drivers/cpuidle/governors/menu.c:269
 cpuidle_idle_call kernel/sched/idle.c:229 [inline]
 do_idle+0x37f/0x590 kernel/sched/idle.c:303
 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:400
 start_secondary+0x256/0x300 arch/x86/kernel/smpboot.c:262
 secondary_startup_64_no_verify+0xce/0xdb
 </TASK>