INFO: task syz-executor.0:8255 blocked for more than 143 seconds.
Not tainted 6.2.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:24448 pid:8255 ppid:5108 flags:0x00004004
Call Trace:
__schedule+0x13ca/0x43c0
schedule+0xc3/0x190
rwsem_down_write_slowpath+0xfb5/0x1490
ext4_buffered_write_iter+0xaf/0x3a0
ext4_file_write_iter+0x1d6/0x18f0
do_iter_write+0x6bc/0xc20
iter_file_splice_write+0x7d6/0xf80
direct_splice_actor+0xe7/0x1c0
splice_direct_to_actor+0x4c4/0xbd0
do_splice_direct+0x282/0x3e0
do_sendfile+0x5c9/0xf50
__se_sys_sendfile64+0x153/0x1b0
do_syscall_64+0x41/0xc0
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3c7368c0c9
RSP: 002b:00007f3c7439a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f3c737ac050 RCX: 00007f3c7368c0c9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000007
RBP: 00007f3c736e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000001ffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd0dbf7abf R14: 00007f3c7439a300 R15: 0000000000022000
INFO: task syz-executor.0:8263 blocked for more than 145 seconds.
Not tainted 6.2.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:25048 pid:8263 ppid:5108 flags:0x00004004
Call Trace:
__schedule+0x13ca/0x43c0
schedule+0xc3/0x190
rwsem_down_write_slowpath+0xfb5/0x1490
ext4_buffered_write_iter+0xaf/0x3a0
ext4_file_write_iter+0x1d6/0x18f0
vfs_write+0x7dd/0xc50
ksys_write+0x17c/0x2a0
do_syscall_64+0x41/0xc0
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3c7368c0c9
RSP: 002b:00007f3c74379168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f3c737ac120 RCX: 00007f3c7368c0c9
RDX: 0000000000010002 RSI: 0000000020000000 RDI: 0000000000000009
RBP: 00007f3c736e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd0dbf7abf R14: 00007f3c74379300 R15: 0000000000022000
INFO: task syz-executor.0:8266 blocked for more than 146 seconds.
Not tainted 6.2.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:24864 pid:8266 ppid:5108 flags:0x00004004
Call Trace:
__schedule+0x13ca/0x43c0
schedule+0xc3/0x190
io_schedule+0x8c/0x100
bit_wait_io+0x12/0xc0
__wait_on_bit_lock+0xbd/0x1a0
out_of_line_wait_on_bit_lock+0x1d6/0x260
__sync_dirty_buffer+0x120/0x380
__ext4_handle_dirty_metadata+0x2a6/0x820
ext4_convert_inline_data_nolock+0x8ea/0xab0
ext4_convert_inline_data+0x4c9/0x610
ext4_fallocate+0x14e/0x2300
vfs_fallocate+0x54b/0x6b0
__x64_sys_fallocate+0xbd/0x100
do_syscall_64+0x41/0xc0
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3c7368c0c9
RSP: 002b:00007f3c74358168 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f3c737ac1f0 RCX: 00007f3c7368c0c9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009
RBP: 00007f3c736e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000010000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd0dbf7abf R14: 00007f3c74358300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cf26e10 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xce0
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cf27610 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xce0
1 lock held by khungtaskd/28:
#0: ffffffff8cf26c40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/u4:2/40:
2 locks held by getty/4760:
#0: ffff88802c132098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1630
2 locks held by syz-executor.0/8255:
#0: ffff888030c2a460 (sb_writers#4){.+.+}-{0:0}, at: do_sendfile+0x5a6/0xf50
#1: ffff88803155d440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xaf/0x3a0
3 locks held by syz-executor.0/8263:
#0: ffff888077c719e8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x254/0x2f0
#1: ffff888030c2a460 (sb_writers#4){.+.+}-{0:0}, at: vfs_write+0x27f/0xc50
#2: ffff88803155d440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xaf/0x3a0
3 locks held by syz-executor.0/8266:
#0: ffff888030c2a460 (sb_writers#4){.+.+}-{0:0}, at: vfs_fallocate+0x4be/0x6b0
#1: ffff88803155d440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_fallocate+0x146/0x2300
#2: ffff88803155d108 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x3a5/0x610
2 locks held by syz-executor.5/9655:
#0: ffff8880b983b1d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140
#1: ffff8880b9828748 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x635/0x9d0
1 lock held by syz-executor.0/9659:
1 lock held by syz-executor.4/9674:
2 locks held by syz-executor.2/9680:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
dump_stack_lvl+0x1b5/0x2a0
nmi_cpu_backtrace+0x47b/0x500
nmi_trigger_cpumask_backtrace+0x1d3/0x430
watchdog+0xf70/0xfb0
kthread+0x270/0x300
ret_from_fork+0x1f/0x30
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted 6.2.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Workqueue: phy8 ieee80211_iface_work
RIP: 0010:lock_is_held_type+0x5e/0x180
Code: 05 17 97 6c 75 85 c0 0f 85 e1 00 00 00 65 4c 8b 2d c7 b6 6d 75 41 83 bd 34 0a 00 00 00 0f 85 cb 00 00 00 41 89 f6 49 89 ff 9c <8f> 04 24 4c 8b 24 24 fa 48 c7 c7 e0 93 ea 8a e8 4e 18 00 00 65 ff
RSP: 0018:ffffc90000107630 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 1ffff92000020ed0 RCX: 0000000080000002
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8cf26bc0
RBP: 00000000ffffffff R08: dffffc0000000000 R09: fffffbfff1cadb16
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000020eec
R13: ffff88813fe4ba80 R14: 00000000ffffffff R15: ffffffff8cf26bc0
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fec7f7821b8 CR3: 000000000cc8e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_lock_sched_held+0x8b/0x110
lock_acquire+0x127/0x600
_raw_spin_lock_irqsave+0xb7/0x100
debug_object_assert_init+0x6e/0x240
__mod_timer+0xaf/0xf10
ieee80211_ibss_work+0x492/0x1490
process_one_work+0x96c/0x13e0
worker_thread+0xa63/0x1210
kthread+0x270/0x300
ret_from_fork+0x1f/0x30