INFO: task kcompactd0:1153 blocked for more than 143 seconds.
Not tainted 5.7.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kcompactd0 D28464 1153 2 0x80004000
Call Trace:
context_switch kernel/sched/core.c:3430 [inline]
__schedule+0x8f3/0x1fc0 kernel/sched/core.c:4156
schedule+0xd0/0x2a0 kernel/sched/core.c:4231
io_schedule+0x17/0x60 kernel/sched/core.c:5874
wait_on_page_bit_common mm/filemap.c:1150 [inline]
__lock_page+0x3e7/0x9c0 mm/filemap.c:1358
lock_page include/linux/pagemap.h:521 [inline]
__unmap_and_move mm/migrate.c:1046 [inline]
unmap_and_move mm/migrate.c:1207 [inline]
migrate_pages+0x19f0/0x2810 mm/migrate.c:1455
compact_zone+0x1b25/0x3780 mm/compaction.c:2207
kcompactd_do_work+0x2d5/0xac0 mm/compaction.c:2564
kcompactd+0x226/0x860 mm/compaction.c:2657
kthread+0x388/0x470 kernel/kthread.c:268
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351
Showing all locks held in the system:
1 lock held by systemd/1:
1 lock held by kthreadd/2:
4 locks held by kworker/0:1/12:
#0: ffff888093bc5138 ((wq_completion)wg-kex-wg0#24){+.+.}-{0:0}, at: __write_once_size include/linux/compiler.h:279 [inline]
#0: ffff888093bc5138 ((wq_completion)wg-kex-wg0#24){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888093bc5138 ((wq_completion)wg-kex-wg0#24){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
#0: ffff888093bc5138 ((wq_completion)wg-kex-wg0#24){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
#0: ffff888093bc5138 ((wq_completion)wg-kex-wg0#24){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline]
#0: ffff888093bc5138 ((wq_completion)wg-kex-wg0#24){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:642 [inline]
#0: ffff888093bc5138 ((wq_completion)wg-kex-wg0#24){+.+.}-{0:0}, at: process_one_work+0x844/0x16a0 kernel/workqueue.c:2239
#1: ffffc90000d2fdc0 ((work_completion)(&({ do { const void *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ({ unsigned long __ptr; __asm__ ("" : "=r"(__ptr) : "0"((typeof(*((worker))) *)((worker)))); (typeof((typeof(*((worker))) *)((worker)))) (__ptr + (((__per_cpu_offset[(cpu)])))); }); })->work)){+.+.}-{0:0}, at: process_one_work+0x878/0x16a0 kernel/workqueue.c:2243
#2: ffff88801e981048 (&wg->static_identity.lock){++++}-{3:3}, at: wg_noise_handshake_consume_initiation+0xaa/0x6a0 drivers/net/wireguard/noise.c:568
#3: ffff8880344c8690 (&handshake->lock){++++}-{3:3}, at: wg_noise_handshake_consume_initiation+0x3a6/0x6a0 drivers/net/wireguard/noise.c:602
4 locks held by kworker/u4:2/25:
#0: ffff8880a3591138 ((wq_completion)wg-kex-wg1#17){+.+.}-{0:0}, at: __write_once_size include/linux/compiler.h:279 [inline]
#0: ffff8880a3591138 ((wq_completion)wg-kex-wg1#17){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8880a3591138 ((wq_completion)wg-kex-wg1#17){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
#0: ffff8880a3591138 ((wq_completion)wg-kex-wg1#17){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
#0: ffff8880a3591138 ((wq_completion)wg-kex-wg1#17){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline]
#0: ffff8880a3591138 ((wq_completion)wg-kex-wg1#17){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:642 [inline]
#0: ffff8880a3591138 ((wq_completion)wg-kex-wg1#17){+.+.}-{0:0}, at: process_one_work+0x844/0x16a0 kernel/workqueue.c:2239
#1: ffffc90000e17dc0 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: process_one_work+0x878/0x16a0 kernel/workqueue.c:2243
#2: ffff888031f55048 (&wg->static_identity.lock){++++}-{3:3}, at: wg_noise_handshake_create_initiation+0xa9/0x620 drivers/net/wireguard/noise.c:499
#3: ffff88818ad76690 (&handshake->lock){++++}-{3:3}, at: wg_noise_handshake_create_initiation+0xbd/0x620 drivers/net/wireguard/noise.c:500
1 lock held by khungtaskd/1149:
#0: ffffffff899bdd80 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:5779
1 lock held by kswapd1/1669:
1 lock held by systemd-journal/3889:
1 lock held by systemd-timesyn/4411:
1 lock held by cron/6455:
1 lock held by rsyslogd/6474:
1 lock held by in:imklog/6489:
1 lock held by syz-fuzzer/6788:
1 lock held by syz-fuzzer/6790:
4 locks held by kworker/0:2/26949:
4 locks held by kworker/1:3/23063:
4 locks held by kworker/0:4/24771:
#0: ffff88808ec64138 ((wq_completion)wg-kex-wg0#18){+.+.}-{0:0}, at: __write_once_size include/linux/compiler.h:279 [inline]
#0: ffff88808ec64138 ((wq_completion)wg-kex-wg0#18){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88808ec64138 ((wq_completion)wg-kex-wg0#18){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
#0: ffff88808ec64138 ((wq_completion)wg-kex-wg0#18){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
#0: ffff88808ec64138 ((wq_completion)wg-kex-wg0#18){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline]
#0: ffff88808ec64138 ((wq_completion)wg-kex-wg0#18){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:642 [inline]
#0: ffff88808ec64138 ((wq_completion)wg-kex-wg0#18){+.+.}-{0:0}, at: process_one_work+0x844/0x16a0 kernel/workqueue.c:2239
#1: ffffc900041a7dc0 ((work_completion)(&({ do { const void *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ({ unsigned long __ptr; __asm__ ("" : "=r"(__ptr) : "0"((typeof(*((worker))) *)((worker)))); (typeof((typeof(*((worker))) *)((worker)))) (__ptr + (((__per_cpu_offset[(cpu)])))); }); })->work)){+.+.}-{0:0}, at: process_one_work+0x878/0x16a0 kernel/workqueue.c:2243
#2: ffff888214ff1048 (&wg->static_identity.lock){++++}-{3:3}, at: wg_noise_handshake_consume_initiation+0xaa/0x6a0 drivers/net/wireguard/noise.c:568
#3: ffff8882019fc690 (&handshake->lock){++++}-{3:3}, at: wg_noise_handshake_consume_initiation+0x3a6/0x6a0 drivers/net/wireguard/noise.c:602
4 locks held by kworker/u4:5/26915:
#0: ffff88808b043138 ((wq_completion)wg-kex-wg0#23){+.+.}-{0:0}, at: __write_once_size include/linux/compiler.h:279 [inline]
#0: ffff88808b043138 ((wq_completion)wg-kex-wg0#23){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88808b043138 ((wq_completion)wg-kex-wg0#23){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
#0: ffff88808b043138 ((wq_completion)wg-kex-wg0#23){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
#0: ffff88808b043138 ((wq_completion)wg-kex-wg0#23){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline]
#0: ffff88808b043138 ((wq_completion)wg-kex-wg0#23){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:642 [inline]
#0: ffff88808b043138 ((wq_completion)wg-kex-wg0#23){+.+.}-{0:0}, at: process_one_work+0x844/0x16a0 kernel/workqueue.c:2239
#1: ffffc900063d7dc0 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: process_one_work+0x878/0x16a0 kernel/workqueue.c:2243
#2: ffff88801e981048 (&wg->static_identity.lock){++++}-{3:3}, at: wg_noise_handshake_create_initiation+0xa9/0x620 drivers/net/wireguard/noise.c:499
#3: ffff8880344c8690 (&handshake->lock){++++}-{3:3}, at: wg_noise_handshake_create_initiation+0xbd/0x620 drivers/net/wireguard/noise.c:500
4 locks held by kworker/1:5/27316:
4 locks held by kworker/0:5/28262:
4 locks held by kworker/u4:0/28263:
#0: ffff8880917a2138 ((wq_completion)wg-kex-wg0#17){+.+.}-{0:0}, at: __write_once_size include/linux/compiler.h:279 [inline]
#0: ffff8880917a2138 ((wq_completion)wg-kex-wg0#17){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8880917a2138 ((wq_completion)wg-kex-wg0#17){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
#0: ffff8880917a2138 ((wq_completion)wg-kex-wg0#17){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
#0: ffff8880917a2138 ((wq_completion)wg-kex-wg0#17){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline]
#0: ffff8880917a2138 ((wq_completion)wg-kex-wg0#17){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:642 [inline]
#0: ffff8880917a2138 ((wq_completion)wg-kex-wg0#17){+.+.}-{0:0}, at: process_one_work+0x844/0x16a0 kernel/workqueue.c:2239
#1: ffffc90001f3fdc0 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: process_one_work+0x878/0x16a0 kernel/workqueue.c:2243
#2: ffff888214ff1048 (&wg->static_identity.lock){++++}-{3:3}, at: wg_noise_handshake_create_initiation+0xa9/0x620 drivers/net/wireguard/noise.c:499
#3: ffff8882019fc690 (&handshake->lock){++++}-{3:3}, at: wg_noise_handshake_create_initiation+0xbd/0x620 drivers/net/wireguard/noise.c:500
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 1149 Comm: khungtaskd Not tainted 5.7.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x188/0x20d lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x70/0xb1 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1e6/0x221 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline]
watchdog+0xa8c/0x1010 kernel/hung_task.c:289
kthread+0x388/0x470 kernel/kthread.c:268
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 28210 Comm: syz-executor.4 Not tainted 5.7.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:26 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x9/0x60 kernel/kcov.c:197
Code: cc 65 48 8b 04 25 00 1f 02 00 48 8b 80 f8 13 00 00 c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 65 48 8b 04 25 00 1f 02 00 <65> 8b 15 f8 4f 8e 7e f7 c2 00 01 ff 00 48 8b 34 24 74 0f 80 e6 01
RSP: 0018:ffffc90001db6e20 EFLAGS: 00000002
RAX: ffff888019fca480 RBX: ffffea00064c8748 RCX: ffffffff819a2979
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000001
RBP: dffffc0000000000 R08: ffff888019fca480 R09: fffff94000c990e9
R10: ffffea00064c8747 R11: fffff94000c990e8 R12: 0000000000000001
R13: ffffea00064c8708 R14: ffff88821b77d020 R15: 0000000000000000
FS: 0000000002a30940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005588b5a0bbbd CR3: 00000000385b5000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__list_add include/linux/list.h:70 [inline]
list_add include/linux/list.h:86 [inline]
list_move include/linux/list.h:216 [inline]
isolate_lru_pages+0x9a7/0x10f0 mm/vmscan.c:1699
shrink_inactive_list+0x2a0/0xca0 mm/vmscan.c:1946
shrink_list mm/vmscan.c:2170 [inline]
shrink_lruvec+0x5fa/0x1170 mm/vmscan.c:2464
shrink_node_memcgs mm/vmscan.c:2653 [inline]
shrink_node+0x4d4/0x1c00 mm/vmscan.c:2767
shrink_zones mm/vmscan.c:2970 [inline]
do_try_to_free_pages+0x38d/0x1380 mm/vmscan.c:3023
try_to_free_pages+0x29b/0x8d0 mm/vmscan.c:3262
__perform_reclaim mm/page_alloc.c:4223 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:4244 [inline]
__alloc_pages_slowpath.constprop.0+0x903/0x2640 mm/page_alloc.c:4650
__alloc_pages_nodemask+0x5d9/0x810 mm/page_alloc.c:4863
alloc_pages_current+0xff/0x200 mm/mempolicy.c:2292
alloc_pages include/linux/gfp.h:545 [inline]
__page_cache_alloc+0x298/0x480 mm/filemap.c:956
page_cache_readahead_unbounded+0x32d/0x820 mm/readahead.c:222
__do_page_cache_readahead+0xc2/0xf0 mm/readahead.c:273
ra_submit mm/internal.h:64 [inline]
do_sync_mmap_readahead mm/filemap.c:2405 [inline]
filemap_fault+0x1f3f/0x2ed0 mm/filemap.c:2491
__do_fault+0x10d/0x520 mm/memory.c:3454
do_shared_fault mm/memory.c:3901 [inline]
do_fault mm/memory.c:3979 [inline]
handle_pte_fault mm/memory.c:4215 [inline]
__handle_mm_fault mm/memory.c:4347 [inline]
handle_mm_fault+0x2cc6/0x3c10 mm/memory.c:4384
do_user_addr_fault arch/x86/mm/fault.c:1301 [inline]
do_page_fault+0x56a/0x13d4 arch/x86/mm/fault.c:1390
page_fault+0x39/0x40 arch/x86/entry/entry_64.S:1203
RIP: 0033:0x400604
Code: Bad RIP value.
RSP: 002b:00007ffe3d5c8920 EFLAGS: 00010206
RAX: 000000000000000c RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000020cab000 RDI: 000000000000000c
RBP: 00000000007901c8 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffe3d5c8a40 R11: 0000000000000246 R12: 00000000007901d0
R13: 000000000035401a R14: fffffffffffffffe R15: 000000000078bf0c