INFO: task kcompactd0:32 blocked for more than 143 seconds.
Not tainted 6.2.0-rc2-next-20230105-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kcompactd0 state:D stack:26712 pid:32 ppid:2 flags:0x00004000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5247 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6563
schedule+0xde/0x1b0 kernel/sched/core.c:6639
io_schedule+0xbe/0x130 kernel/sched/core.c:8819
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+0x66/0x70 fs/buffer.c:69
lock_buffer include/linux/buffer_head.h:400 [inline]
buffer_migrate_lock_buffers mm/migrate.c:702 [inline]
__buffer_migrate_folio+0x6bb/0x830 mm/migrate.c:748
move_to_new_folio+0x17a/0x6e0 mm/migrate.c:975
migrate_folio_move mm/migrate.c:1272 [inline]
migrate_pages_batch+0xb74/0x3580 mm/migrate.c:1770
migrate_pages+0x1d79/0x2530 mm/migrate.c:1927
compact_zone+0x1c74/0x3a60 mm/compaction.c:2413
proactive_compact_node+0x103/0x1c0 mm/compaction.c:2665
kcompactd+0x7d5/0xe00 mm/compaction.c:2975
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
</TASK>
INFO: task kworker/u4:0:20641 blocked for more than 144 seconds.
Not tainted 6.2.0-rc2-next-20230105-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:0 state:D stack:23440 pid:20641 ppid:2 flags:0x00004000
Workqueue: loop4 loop_workfn
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5247 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6563
schedule+0xde/0x1b0 kernel/sched/core.c:6639
io_schedule+0xbe/0x130 kernel/sched/core.c:8819
folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1297
__folio_lock mm/filemap.c:1660 [inline]
folio_lock include/linux/pagemap.h:938 [inline]
folio_lock include/linux/pagemap.h:934 [inline]
__filemap_get_folio+0xbab/0xdc0 mm/filemap.c:1932
shmem_get_folio_gfp+0x441/0x1a30 mm/shmem.c:1878
shmem_get_folio mm/shmem.c:2068 [inline]
shmem_write_begin+0x14a/0x380 mm/shmem.c:2560
generic_perform_write+0x256/0x570 mm/filemap.c:3772
__generic_file_write_iter+0x2ae/0x500 mm/filemap.c:3900
generic_file_write_iter+0xe3/0x350 mm/filemap.c:3932
call_write_iter include/linux/fs.h:2189 [inline]
do_iter_readv_writev+0x20b/0x3b0 fs/read_write.c:735
do_iter_write+0x182/0x700 fs/read_write.c:861
vfs_iter_write+0x74/0xa0 fs/read_write.c:902
lo_write_bvec drivers/block/loop.c:249 [inline]
lo_write_simple drivers/block/loop.c:271 [inline]
do_req_filebacked drivers/block/loop.c:495 [inline]
loop_handle_cmd drivers/block/loop.c:1873 [inline]
loop_process_work+0xdac/0x20e0 drivers/block/loop.c:1908
process_one_work+0x9bf/0x1750 kernel/workqueue.c:2293
worker_thread+0x669/0x1090 kernel/workqueue.c:2440
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
</TASK>
INFO: task udevd:2410 blocked for more than 145 seconds.
Not tainted 6.2.0-rc2-next-20230105-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:24872 pid:2410 ppid:4437 flags:0x00004002
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5247 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6563
schedule+0xde/0x1b0 kernel/sched/core.c:6639
io_schedule+0xbe/0x130 kernel/sched/core.c:8819
folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1297
folio_lock include/linux/pagemap.h:938 [inline]
shmem_undo_range+0x10b7/0x1340 mm/shmem.c:1015
shmem_truncate_range mm/shmem.c:1042 [inline]
shmem_evict_inode+0x32f/0xb60 mm/shmem.c:1157
evict+0x2ed/0x6b0 fs/inode.c:664
iput_final fs/inode.c:1747 [inline]
iput fs/inode.c:1773 [inline]
iput+0x52b/0x8e0 fs/inode.c:1759
dentry_unlink_inode+0x2b1/0x460 fs/dcache.c:401
__dentry_kill+0x3c0/0x640 fs/dcache.c:607
dentry_kill fs/dcache.c:733 [inline]
dput+0x865/0xe10 fs/dcache.c:913
__fput+0x3cc/0xa90 fs/file_table.c:328
task_work_run+0x16f/0x270 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296
do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f923a925fc3
RSP: 002b:00007fff69de1228 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007f923aca86a8 RCX: 00007f923a925fc3
RDX: 000000000000001c RSI: 00007fff69de0a28 RDI: 0000000000000008
RBP: 00005614f8995be0 R08: 0000000000000007 R09: 00005614f89b2380
R10: 00007f923a9b4fc0 R11: 0000000000000246 R12: 0000000000000002
R13: 00005614f89a57a0 R14: 0000000000000008 R15: 00005614f898b910
</TASK>
INFO: task syz-executor.4:7766 blocked for more than 145 seconds.
Not tainted 6.2.0-rc2-next-20230105-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:26064 pid:7766 ppid:5130 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5247 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6563
schedule+0xde/0x1b0 kernel/sched/core.c:6639
io_schedule+0xbe/0x130 kernel/sched/core.c:8819
bit_wait_io+0x16/0xe0 kernel/sched/wait_bit.c:209
__wait_on_bit+0x64/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xd9/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:101 [inline]
__wait_on_buffer fs/buffer.c:122 [inline]
wait_on_buffer include/linux/buffer_head.h:388 [inline]
__sync_dirty_buffer+0x299/0x380 fs/buffer.c:2746
nilfs_sync_super fs/nilfs2/super.c:214 [inline]
nilfs_commit_super+0x73d/0x970 fs/nilfs2/super.c:297
nilfs_setup_super.isra.0+0x29d/0x3c0 fs/nilfs2/super.c:832
nilfs_fill_super fs/nilfs2/super.c:1086 [inline]
nilfs_mount+0xe3f/0xfc0 fs/nilfs2/super.c:1315
legacy_get_tree+0x109/0x220 fs/fs_context.c:610
vfs_get_tree+0x8d/0x2f0 fs/super.c:1489
do_new_mount fs/namespace.c:3145 [inline]
path_mount+0x132a/0x1e20 fs/namespace.c:3475
do_mount fs/namespace.c:3488 [inline]
__do_sys_mount fs/namespace.c:3697 [inline]
__se_sys_mount fs/namespace.c:3674 [inline]
__x64_sys_mount+0x283/0x300 fs/namespace.c:3674
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: 0033:0x7f5fbaa8d5fa
RSP: 002b:00007f5fbb7cbf88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000da6 RCX: 00007f5fbaa8d5fa
RDX: 0000000020000dc0 RSI: 0000000020000100 RDI: 00007f5fbb7cbfe0
RBP: 00007f5fbb7cc020 R08: 00007f5fbb7cc020 R09: 0000000000010018
R10: 0000000000010018 R11: 0000000000000202 R12: 0000000020000dc0
R13: 0000000020000100 R14: 00007f5fbb7cbfe0 R15: 0000000020000e40
</TASK>
INFO: task syz-executor.3:7773 blocked for more than 147 seconds.
Not tainted 6.2.0-rc2-next-20230105-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:28200 pid:7773 ppid:5129 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5247 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6563
schedule+0xde/0x1b0 kernel/sched/core.c:6639
io_schedule+0xbe/0x130 kernel/sched/core.c:8819
migration_entry_wait_on_locked+0x7c9/0xc50 mm/filemap.c:1424
__migration_entry_wait+0x179/0x1a0 mm/migrate.c:317
do_swap_page+0x27c0/0x3720 mm/memory.c:3719
handle_pte_fault mm/memory.c:4946 [inline]
__handle_mm_fault+0x15f4/0x3c90 mm/memory.c:5084
handle_mm_fault+0x1b6/0x850 mm/memory.c:5230
do_user_addr_fault+0x475/0x1210 arch/x86/mm/fault.c:1428
handle_page_fault arch/x86/mm/fault.c:1519 [inline]
exc_page_fault+0x98/0x170 arch/x86/mm/fault.c:1575
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0010:fault_in_readable+0x179/0x290 mm/gup.c:1834
Code: db c7 ff 49 39 dd 0f 84 06 01 00 00 45 31 f6 eb 11 e8 3b db c7 ff 48 81 c3 00 10 00 00 4c 39 eb 74 1d e8 2a db c7 ff 45 89 f7 <8a> 03 31 ff 44 89 fe 88 44 24 28 e8 c7 d7 c7 ff 45 85 ff 74 d2 e8
RSP: 0018:ffffc9000b387b10 EFLAGS: 00050246
RAX: 0000000000040000 RBX: 00007f828280f000 RCX: ffffc9000b01c000
RDX: 0000000000040000 RSI: ffffffff81b9d456 RDI: 0000000000000007
RBP: 00007f828280f000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000001000
R13: 00007f8282810000 R14: 0000000000000000 R15: 0000000000000000
fault_in_iov_iter_readable+0x252/0x2c0 lib/iov_iter.c:356
generic_perform_write+0x1ae/0x570 mm/filemap.c:3762
__generic_file_write_iter+0x2ae/0x500 mm/filemap.c:3900
generic_file_write_iter+0xe3/0x350 mm/filemap.c:3932
call_write_iter include/linux/fs.h:2189 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x9ed/0xe10 fs/read_write.c:584
ksys_write+0x12b/0x250 fs/read_write.c:637
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: 0033:0x7f828c03de4f
RSP: 002b:00007f828ce20f10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f828c03de4f
RDX: 0000000001000000 RSI: 00007f82827ff000 RDI: 0000000000000003
RBP: 00007f82827ff000 R08: 0000000000000000 R09: 00000000000050e7
R10: 0000000001000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007f828ce20fdc R14: 00007f828ce20fe0 R15: 000000002000a2c2
</TASK>
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c792230 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xcd0 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c791f30 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xcd0 kernel/rcu/tasks.h:510
1 lock held by khungtaskd/28:
#0: ffffffff8c792d80 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x2d4 kernel/locking/lockdep.c:6494
2 locks held by getty/4754:
#0: ffff88814b571098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
4 locks held by kworker/u4:0/20641:
#0: ffff88801c748138 ((wq_completion)loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88801c748138 ((wq_completion)loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88801c748138 ((wq_completion)loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff88801c748138 ((wq_completion)loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff88801c748138 ((wq_completion)loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff88801c748138 ((wq_completion)loop4){+.+.}-{0:0}, at: process_one_work+0x86d/0x1750 kernel/workqueue.c:2264
#1: ffffc90015b1fda8 ((work_completion)(&worker->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1750 kernel/workqueue.c:2268
#2: ffff8880125f6460 (sb_writers#5){.+.+}-{0:0}, at: process_one_work+0x9bf/0x1750 kernel/workqueue.c:2293
#3: ffff888079291560 (&sb->s_type->i_mutex_key#12){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#3: ffff888079291560 (&sb->s_type->i_mutex_key#12){+.+.}-{3:3}, at: generic_file_write_iter+0x92/0x350 mm/filemap.c:3929
4 locks held by kworker/0:9/11461:
#0: ffff8880b983c218 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2f/0x120 kernel/sched/core.c:539
#1: ffff88807de5f5b0 (&mm->cid_lock){....}-{2:2}, at: mm_cid_get kernel/sched/sched.h:3299 [inline]
#1: ffff88807de5f5b0 (&mm->cid_lock){....}-{2:2}, at: switch_mm_cid kernel/sched/sched.h:3321 [inline]
#1: ffff88807de5f5b0 (&mm->cid_lock){....}-{2:2}, at: prepare_task_switch kernel/sched/core.c:5057 [inline]
#1: ffff88807de5f5b0 (&mm->cid_lock){....}-{2:2}, at: context_switch kernel/sched/core.c:5198 [inline]
#1: ffff88807de5f5b0 (&mm->cid_lock){....}-{2:2}, at: __schedule+0x2b2e/0x5a70 kernel/sched/core.c:6563
#2: ffff8880b9829698 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x5a/0x1f0 kernel/time/timer.c:999
#3: ffffffff91de2d38 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x132/0x3e0 lib/debugobjects.c:665
2 locks held by syz-executor.4/7766:
#0: ffff888038bb80e0 (&type->s_umount_key#59/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 fs/super.c:228
#1: ffff888089996090 (&nilfs->ns_sem){++++}-{3:3}, at: nilfs_fill_super fs/nilfs2/super.c:1085 [inline]
#1: ffff888089996090 (&nilfs->ns_sem){++++}-{3:3}, at: nilfs_mount+0xe32/0xfc0 fs/nilfs2/super.c:1315
3 locks held by syz-executor.3/7773:
#0: ffff8880125f6460 (sb_writers#5){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:637
#1: ffff88802a9b1560 (&sb->s_type->i_mutex_key#12){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88802a9b1560 (&sb->s_type->i_mutex_key#12){+.+.}-{3:3}, at: generic_file_write_iter+0x92/0x350 mm/filemap.c:3929
#2: ffff88807efd6d98 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
#2: ffff88807efd6d98 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0x276/0x1210 arch/x86/mm/fault.c:1369
1 lock held by syz-executor.3/9919:
2 locks held by syz-executor.5/9939:
#0: ffff8880b993c218 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2f/0x120 kernel/sched/core.c:539
#1: ffff88807de5e3b0 (&mm->cid_lock#2){....}-{2:2}, at: mm_cid_get kernel/sched/sched.h:3299 [inline]
#1: ffff88807de5e3b0 (&mm->cid_lock#2){....}-{2:2}, at: switch_mm_cid kernel/sched/sched.h:3321 [inline]
#1: ffff88807de5e3b0 (&mm->cid_lock#2){....}-{2:2}, at: prepare_task_switch kernel/sched/core.c:5057 [inline]
#1: ffff88807de5e3b0 (&mm->cid_lock#2){....}-{2:2}, at: context_switch kernel/sched/core.c:5198 [inline]
#1: ffff88807de5e3b0 (&mm->cid_lock#2){....}-{2:2}, at: __schedule+0x2b2e/0x5a70 kernel/sched/core.c:6563
2 locks held by syz-executor.2/9978:
2 locks held by syz-executor.0/9974:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc2-next-20230105-syzkaller #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:113
nmi_trigger_cpumask_backtrace+0x32f/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+0xcae/0x1050 kernel/hung_task.c:377
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
</TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 32319 Comm: kworker/u4:5 Not tainted 6.2.0-rc2-next-20230105-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: phy12 ieee80211_iface_work
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x8/0x20 kernel/kcov.c:304
Code: 00 00 f3 0f 1e fa 48 8b 0c 24 0f b7 d6 0f b7 f7 bf 03 00 00 00 e9 b8 fe ff ff 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 8b 0c 24 <89> f2 89 fe bf 05 00 00 00 e9 9a fe ff ff 66 2e 0f 1f 84 00 00 00
RSP: 0000:ffffc900161079c0 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff888029a95f5c RCX: ffffffff8950e2a4
RDX: ffff8880267a0000 RSI: 0000000000000000 RDI: 000000000000001f
RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000003
R13: 0000000000000003 R14: 000000000000000c R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f33d4f64000 CR3: 000000000c48e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
ieee80211_sta_get_rates+0x3e4/0x730 net/mac80211/util.c:2349
ieee80211_update_sta_info net/mac80211/ibss.c:1003 [inline]
ieee80211_rx_bss_info net/mac80211/ibss.c:1118 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline]
ieee80211_ibss_rx_queued_mgmt+0x108d/0x3030 net/mac80211/ibss.c:1638
ieee80211_iface_process_skb net/mac80211/iface.c:1581 [inline]
ieee80211_iface_work+0xa4d/0xd70 net/mac80211/iface.c:1635
process_one_work+0x9bf/0x1750 kernel/workqueue.c:2293
worker_thread+0x669/0x1090 kernel/workqueue.c:2440
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
</TASK>