INFO: task syz-executor.5:8813 blocked for more than 143 seconds.
Not tainted 6.2.0-rc3-syzkaller-00009-g5a41237ad1d4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:20568 pid:8813 ppid:5109 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x995/0xe20 kernel/sched/core.c:6555
schedule+0xcb/0x190 kernel/sched/core.c:6631
__wait_on_freeing_inode fs/inode.c:2196 [inline]
find_inode_fast+0x35a/0x4c0 fs/inode.c:950
iget_locked+0xb1/0x830 fs/inode.c:1273
__ext4_iget+0x22e/0x3ed0 fs/ext4/inode.c:4861
ext4_xattr_inode_iget+0x68/0x4e0 fs/ext4/xattr.c:389
ext4_xattr_inode_get+0x153/0x8d0 fs/ext4/xattr.c:490
ext4_xattr_move_to_block fs/ext4/xattr.c:2568 [inline]
ext4_xattr_make_inode_space fs/ext4/xattr.c:2669 [inline]
ext4_expand_extra_isize_ea+0xf93/0x1cd0 fs/ext4/xattr.c:2761
__ext4_expand_extra_isize+0x30b/0x410 fs/ext4/inode.c:5957
ext4_try_to_expand_extra_isize fs/ext4/inode.c:6000 [inline]
__ext4_mark_inode_dirty+0x51a/0x670 fs/ext4/inode.c:6078
ext4_evict_inode+0xb7c/0x10b0 fs/ext4/inode.c:279
evict+0x2a4/0x620 fs/inode.c:664
ext4_orphan_cleanup+0xb60/0x1340 fs/ext4/orphan.c:474
__ext4_fill_super fs/ext4/super.c:5516 [inline]
ext4_fill_super+0x81cd/0x8700 fs/ext4/super.c:5644
get_tree_bdev+0x400/0x620 fs/super.c:1282
vfs_get_tree+0x88/0x270 fs/super.c:1489
do_new_mount+0x289/0xad0 fs/namespace.c:3145
do_mount fs/namespace.c:3488 [inline]
__do_sys_mount fs/namespace.c:3697 [inline]
__se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3674
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: 0033:0x7f7f73e8d5fa
RSP: 002b:00007f7f74b11f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 000000000000042f RCX: 00007f7f73e8d5fa
RDX: 0000000020000440 RSI: 00000000200000c0 RDI: 00007f7f74b11fe0
RBP: 00007f7f74b12020 R08: 00007f7f74b12020 R09: 0000000000800000
R10: 0000000000800000 R11: 0000000000000202 R12: 0000000020000440
R13: 00000000200000c0 R14: 00007f7f74b11fe0 R15: 0000000020000100
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d326f50 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d327750 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8d326d80 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
5 locks held by kworker/u4:3/51:
2 locks held by getty/4749:
#0: ffff88802831e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 drivers/tty/n_tty.c:2177
2 locks held by kworker/u4:8/6376:
2 locks held by kworker/0:7/8634:
#0: ffff888012872538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc900167d7d00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
3 locks held by kworker/0:16/8638:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc90016817d00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
#2: ffffffff8d32c3f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
#2: ffffffff8d32c3f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x384/0x860 kernel/rcu/tree_exp.h:946
3 locks held by syz-executor.5/8813:
#0: ffff8880309f40e0 (&type->s_umount_key#28/1){+.+.}-{3:3}, at: alloc_super+0x212/0x920 fs/super.c:228
#1: ffff8880309f4650 (sb_internal){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1814 [inline]
#1: ffff8880309f4650 (sb_internal){.+.+}-{0:0}, at: sb_start_intwrite include/linux/fs.h:1936 [inline]
#1: ffff8880309f4650 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x4cd/0x10b0 fs/ext4/inode.c:240
#2: ffff888032a8e518 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_trylock_xattr fs/ext4/xattr.h:162 [inline]
#2: ffff888032a8e518 (&ei->xattr_sem){++++}-{3:3}, at: ext4_try_to_expand_extra_isize fs/ext4/inode.c:5997 [inline]
#2: ffff888032a8e518 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x479/0x670 fs/ext4/inode.c:6078
2 locks held by syz-executor.5/8930:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc3-syzkaller-00009-g5a41237ad1d4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1b1/0x290 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+0xcd5/0xd20 kernel/hung_task.c:377
kthread+0x266/0x300 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: 6376 Comm: kworker/u4:8 Not tainted 6.2.0-rc3-syzkaller-00009-g5a41237ad1d4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: phy4 ieee80211_iface_work
RIP: 0010:lookup_chain_cache kernel/locking/lockdep.c:3725 [inline]
RIP: 0010:lookup_chain_cache_add kernel/locking/lockdep.c:3744 [inline]
RIP: 0010:validate_chain+0x220/0x6ae0 kernel/locking/lockdep.c:3799
Code: f8 48 85 c0 48 0f 44 d8 48 85 db 74 47 4c 8d 7b 18 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 f3 b0 75 00 49 8b 07 <4c> 39 f0 74 1c 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74
RSP: 0018:ffffc900166768a0 EFLAGS: 00000046
RAX: c62ddc6ab47e4170 RBX: ffffffff90988e40 RCX: ffffffff816bd357
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff907e21e8
RBP: ffffc90016677938 R08: dffffc0000000000 R09: fffffbfff20fc43e
R10: fffffbfff20fc43e R11: 1ffffffff20fc43d R12: dffffc0000000000
R13: fffff52002cced30 R14: 2edd0aa3562eec02 R15: ffffffff90988e58
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe29d3821b8 CR3: 000000007c24d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__lock_acquire+0x1292/0x1f60 kernel/locking/lockdep.c:5055
lock_acquire+0x182/0x3c0 kernel/locking/lockdep.c:5668
local_lock_acquire+0x1d/0x70 include/linux/local_lock_internal.h:29
kcov_remote_start+0x8a/0x5e0 kernel/kcov.c:852
kcov_remote_start_common include/linux/kcov.h:48 [inline]
ieee80211_iface_work+0x21b/0xcf0 net/mac80211/iface.c:1630
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:308