INFO: task kcompactd0:30 blocked for more than 143 seconds.
Not tainted 6.2.0-rc1-syzkaller-00084-gc8451c141e07 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kcompactd0 state:D stack:27344 pid:30 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6555
schedule+0xde/0x1b0 kernel/sched/core.c:6631
io_schedule+0xbe/0x130 kernel/sched/core.c:8811
folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1297
folio_lock include/linux/pagemap.h:938 [inline]
__unmap_and_move mm/migrate.c:1040 [inline]
unmap_and_move mm/migrate.c:1194 [inline]
migrate_pages+0x2039/0x3e10 mm/migrate.c:1477
compact_zone+0x1c74/0x39f0 mm/compaction.c:2413
proactive_compact_node+0x103/0x1c0 mm/compaction.c:2665
kcompactd+0x7d5/0xdf0 mm/compaction.c:2975
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c790f30 (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: ffffffff8c790c30 (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/27:
#0: ffffffff8c791a80 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x264 kernel/locking/lockdep.c:6494
2 locks held by getty/4739:
#0: ffff88814b138098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
3 locks held by kworker/u4:10/7229:
#0: ffff8880b983b598 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2f/0x120 kernel/sched/core.c:537
#1: ffff8880b98287c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x2de/0x930 kernel/sched/psi.c:976
#2: ffff88802ab50d40 (&wdev->mtx){+.+.}-{3:3}, at: sdata_lock net/mac80211/ieee80211_i.h:1114 [inline]
#2: ffff88802ab50d40 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x94/0xe80 net/mac80211/ibss.c:1680
2 locks held by kworker/u4:2/27320:
#0: ffff8880b993b598 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2f/0x120 kernel/sched/core.c:537
#1: ffff8880b99287c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x2de/0x930 kernel/sched/psi.c:976
1 lock held by syz-executor.5/25543:
1 lock held by syz-executor.5/26007:
1 lock held by syz-executor.5/26200:
1 lock held by syz-executor.5/26316:
1 lock held by syz-executor.5/26445:
1 lock held by syz-executor.5/26565:
1 lock held by syz-executor.5/26646:
1 lock held by syz-executor.5/26719:
1 lock held by syz-executor.5/26788:
1 lock held by syz-executor.5/27753:
1 lock held by syz-executor.5/28152:
1 lock held by syz-executor.5/28245:
1 lock held by syz-executor.5/28381:
1 lock held by syz-executor.5/30395:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.2.0-rc1-syzkaller-00084-gc8451c141e07 #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+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:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 26200 Comm: syz-executor.5 Not tainted 6.2.0-rc1-syzkaller-00084-gc8451c141e07 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:__lock_release kernel/locking/lockdep.c:5354 [inline]
RIP: 0010:lock_release+0x295/0x810 kernel/locking/lockdep.c:5688
Code: ae 04 00 00 48 8d 7b 22 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 <84> d2 0f 85 c3 04 00 00 66 f7 43 22 f0 ff 74 36 48 8d 7b 20 48 b8
RSP: 0018:ffffc9001498eb40 EFLAGS: 00000006
RAX: 0000000000000003 RBX: ffff888026a4a7c8 RCX: ffffc9001498eb90
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888026a4a7ea
RBP: 1ffff92002931d6a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8c791a80
R13: 0000000000000003 R14: ffff888026a4a770 R15: ffff888026a49d40
FS: 00007f344e333700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000557d444ec0c0 CR3: 00000000a142a000 CR4: 0000000000350ef0
Call Trace:
rcu_lock_release include/linux/rcupdate.h:330 [inline]
rcu_read_unlock include/linux/rcupdate.h:797 [inline]
folio_evictable+0x141/0x230 mm/internal.h:140
move_folios_to_lru+0x235/0x10c0 mm/vmscan.c:2413
shrink_inactive_list mm/vmscan.c:2529 [inline]
shrink_list mm/vmscan.c:2767 [inline]
shrink_lruvec+0xd27/0x27a0 mm/vmscan.c:5951
shrink_node_memcgs mm/vmscan.c:6138 [inline]
shrink_node+0x8f2/0x1f40 mm/vmscan.c:6169
shrink_zones mm/vmscan.c:6407 [inline]
do_try_to_free_pages+0x3b4/0x17a0 mm/vmscan.c:6469
try_to_free_mem_cgroup_pages+0x3ae/0xa80 mm/vmscan.c:6786
try_charge_memcg+0x467/0x12f0 mm/memcontrol.c:2687
try_charge mm/memcontrol.c:2830 [inline]
charge_memcg+0x90/0x3b0 mm/memcontrol.c:6947
__mem_cgroup_charge+0x2b/0x90 mm/memcontrol.c:6968
mem_cgroup_charge include/linux/memcontrol.h:671 [inline]
__filemap_add_folio+0x615/0xf80 mm/filemap.c:853
filemap_add_folio+0xaf/0x1e0 mm/filemap.c:935
page_cache_ra_unbounded+0x1d2/0x5e0 mm/readahead.c:251
do_page_cache_ra mm/readahead.c:300 [inline]
page_cache_ra_order+0x6ec/0xa00 mm/readahead.c:560
do_sync_mmap_readahead mm/filemap.c:3062 [inline]
filemap_fault+0x152d/0x23f0 mm/filemap.c:3154
__do_fault+0x107/0x600 mm/memory.c:4163
do_shared_fault mm/memory.c:4569 [inline]
do_fault mm/memory.c:4647 [inline]
handle_pte_fault mm/memory.c:4931 [inline]
__handle_mm_fault+0x236e/0x3c90 mm/memory.c:5073
handle_mm_fault+0x1b6/0x850 mm/memory.c:5219
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:copy_user_generic_string+0x30/0x50 arch/x86/lib/copy_user_64.S:133
Code: cb 83 fa 08 72 27 89 f9 83 e1 07 74 15 83 e9 08 f7 d9 29 ca 8a 06 88 07 48 ff c6 48 ff c7 ff c9 75 f2 89 d1 c1 e9 03 83 e2 07 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 8d 0c ca 89 ca eb 2c 66 66
RSP: 0018:ffffc9001498fc80 EFLAGS: 00050246
RAX: 0000000000000001 RBX: 0000000000000090 RCX: 0000000000000012
RDX: 0000000000000000 RSI: ffffc9001498fce0 RDI: 0000000020000080
RBP: 0000000020000080 R08: 0000000000000000 R09: ffffc9001498fd6f
R10: fffff52002931fad R11: 0000000000000000 R12: 00007fffffffef70
R13: ffffc9001498fce0 R14: 0000000000000000 R15: 0000000000000000
copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
raw_copy_to_user arch/x86/include/asm/uaccess_64.h:58 [inline]
_copy_to_user lib/usercopy.c:34 [inline]
_copy_to_user+0x127/0x150 lib/usercopy.c:27
copy_to_user include/linux/uaccess.h:169 [inline]
cp_new_stat+0x47b/0x5b0 fs/stat.c:406
__do_sys_newfstat+0xf0/0x100 fs/stat.c:453
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: 0033:0x7f344d68c0a9
Code: Unable to access opcode bytes at 0x7f344d68c07f.
RSP: 002b:00007f344e333168 EFLAGS: 00000246 ORIG_RAX: 0000000000000005
RAX: ffffffffffffffda RBX: 00007f344d7ac050 RCX: 00007f344d68c0a9
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000004
RBP: 00007f344d6e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffde1757df R14: 00007f344e333300 R15: 0000000000022000