INFO: task syz-executor.1:21510 blocked for more than 143 seconds.
Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:19920 pid:21510 tgid:21510 ppid:14106 flags:0x00104006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x1781/0x49d0 kernel/sched/core.c:6736
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6828
io_schedule+0x8d/0x110 kernel/sched/core.c:9034
folio_wait_bit_common+0x882/0x12b0 mm/filemap.c:1283
folio_wait_writeback+0xe7/0x1e0 mm/page-writeback.c:3061
shrink_folio_list+0x53d4/0x89e0 mm/vmscan.c:1153
shrink_inactive_list mm/vmscan.c:1914 [inline]
shrink_list mm/vmscan.c:2155 [inline]
shrink_lruvec+0x16e3/0x2d40 mm/vmscan.c:5681
shrink_node_memcgs mm/vmscan.c:5867 [inline]
shrink_node+0x11a8/0x2960 mm/vmscan.c:5902
shrink_zones mm/vmscan.c:6144 [inline]
do_try_to_free_pages+0x67f/0x19d0 mm/vmscan.c:6206
try_to_free_mem_cgroup_pages+0x456/0xa70 mm/vmscan.c:6521
try_charge_memcg+0x6da/0x18a0 mm/memcontrol.c:2782
try_charge mm/memcontrol.c:2930 [inline]
charge_memcg+0xa2/0x160 mm/memcontrol.c:7276
__mem_cgroup_charge+0x27/0x80 mm/memcontrol.c:7291
mem_cgroup_charge include/linux/memcontrol.h:690 [inline]
__filemap_add_folio+0x3e6/0x1a60 mm/filemap.c:864
filemap_add_folio+0x11e/0x570 mm/filemap.c:947
page_cache_ra_unbounded+0x211/0x7c0 mm/readahead.c:250
do_sync_mmap_readahead+0x444/0x850
filemap_fault+0x7c6/0x1680 mm/filemap.c:3245
__do_fault+0x135/0x460 mm/memory.c:4396
do_read_fault mm/memory.c:4758 [inline]
do_fault mm/memory.c:4888 [inline]
do_pte_missing mm/memory.c:3745 [inline]
handle_pte_fault mm/memory.c:5164 [inline]
__handle_mm_fault+0x49e6/0x72d0 mm/memory.c:5305
handle_mm_fault+0x27f/0x770 mm/memory.c:5470
do_user_addr_fault arch/x86/mm/fault.c:1362 [inline]
handle_page_fault arch/x86/mm/fault.c:1505 [inline]
exc_page_fault+0x446/0x890 arch/x86/mm/fault.c:1563
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f276be2c365
RSP: 002b:00007ffefb862020 EFLAGS: 00010202
RAX: 0000000020000020 RBX: 0000000004000001 RCX: 0000000000000000
RDX: 412b2bfccc5ae645 RSI: 0000000000000000 RDI: 000055558d887360
RBP: 0000000004000001 R08: 0000000000000000 R09: 0000000000000004
R10: 00007ffefb862190 R11: 0000000000000246 R12: 00007f276ba00598
R13: fffffffffffffffe R14: 00007f276ba00000 R15: 00007f276ba005a0
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4809:
#0: ffff88802f3d10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f0e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
5 locks held by kworker/u8:11/11947:
1 lock held by syz-executor.2/20711:
1 lock held by syz-executor.1/21510:
#0: ffff88801d0814c0 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:848 [inline]
#0: ffff88801d0814c0 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xf2/0x7c0 mm/readahead.c:225
1 lock held by syz-executor.1/21667:
1 lock held by syz-executor.4/23266:
1 lock held by syz-executor.1/24503:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xfb0/0xff0 kernel/hung_task.c:379
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 50 Comm: kworker/u8:3 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:lock_acquire+0x1d4/0x530 kernel/locking/lockdep.c:5754
Code: b2 f0 90 7e 45 31 c9 41 f7 c7 00 02 00 00 41 0f 94 c1 48 8b 7c 24 20 44 89 f6 8b 54 24 1c 48 8b 4c 24 30 4c 8b 44 24 38 6a 00 <6a> 00 6a 00 ff 75 10 ff 74 24 48 e8 ac 04 00 00 48 83 c4 28 48 c7
RSP: 0018:ffffc90000ba78b8 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffc90000ba7920 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88806b8c9790
RBP: ffffc90000ba7a08 R08: 0000000000000001 R09: 0000000000000001
R10: dffffc0000000000 R11: fffffbfff1f0c1be R12: 1ffff92000174f20
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000046
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b912c9cc70 CR3: 000000001ecc0000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
skb_dequeue+0x2d/0x150 net/core/skbuff.c:3835
ieee80211_iface_work+0x27f/0xf10 net/mac80211/iface.c:1653
cfg80211_wiphy_work+0x221/0x260 net/wireless/core.c:437
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0xa00/0x1770 kernel/workqueue.c:3335
worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243