INFO: task kcompactd0:30 blocked for more than 143 seconds.
Not tainted 5.16.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kcompactd0 state:D stack:27984 pid: 30 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
io_schedule+0xee/0x170 kernel/sched/core.c:8371
folio_wait_bit_common+0x4f2/0xa60 mm/filemap.c:1371
lock_page include/linux/pagemap.h:796 [inline]
__unmap_and_move mm/migrate.c:980 [inline]
unmap_and_move mm/migrate.c:1204 [inline]
migrate_pages+0xa5a/0x3810 mm/migrate.c:1481
compact_zone+0x1abb/0x3860 mm/compaction.c:2399
kcompactd_do_work+0x2c9/0x730 mm/compaction.c:2839
kcompactd+0x86b/0xf30 mm/compaction.c:2941
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Showing all locks held in the system:
1 lock held by systemd/1:
1 lock held by khungtaskd/27:
#0: ffffffff8bb83b60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by khugepaged/33:
3 locks held by kworker/0:1H/51:
#0: ffff888010c65138 ((wq_completion)events_highpri){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010c65138 ((wq_completion)events_highpri){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010c65138 ((wq_completion)events_highpri){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff888010c65138 ((wq_completion)events_highpri){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
#0: ffff888010c65138 ((wq_completion)events_highpri){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
#0: ffff888010c65138 ((wq_completion)events_highpri){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2269
#1: ffffc900012afdb0 ((work_completion)(&(&krcp->page_cache_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
#2: ffffffff8bca8e68 (pcpu_drain_mutex){+.+.}-{3:3}, at: __drain_all_pages+0x4f/0x6c0 mm/page_alloc.c:3181
1 lock held by kswapd0/97:
1 lock held by kswapd1/98:
2 locks held by systemd-journal/2967:
2 locks held by systemd-udevd/2972:
2 locks held by systemd-timesyn/3055:
#0: ffff88801aeecb58 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline]
#0: ffff88801aeecb58 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x15ad/0x26d0 mm/filemap.c:3096
#1: ffffffff8bca8260 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim mm/page_alloc.c:4585 [inline]
#1: ffffffff8bca8260 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim mm/page_alloc.c:4609 [inline]
#1: ffffffff8bca8260 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath.constprop.0+0xa1e/0x20d0 mm/page_alloc.c:5007
2 locks held by cron/6198:
2 locks held by in:imklog/6214:
1 lock held by syz-fuzzer/6498:
2 locks held by syz-fuzzer/6500:
3 locks held by kworker/1:7/8262:
1 lock held by syz-executor.5/15225:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:295
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2967 Comm: systemd-journal Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:arch_atomic64_add arch/x86/include/asm/atomic64_64.h:46 [inline]
RIP: 0010:arch_atomic_long_add include/linux/atomic/atomic-long.h:53 [inline]
RIP: 0010:atomic_long_add include/linux/atomic/atomic-instrumented.h:1212 [inline]
RIP: 0010:node_page_state_add include/linux/vmstat.h:176 [inline]
RIP: 0010:__mod_node_page_state+0xf3/0x130 mm/vmstat.c:403
Code: 89 ef e8 30 b1 17 00 f0 48 01 5d 00 49 83 fd 28 77 3a 49 81 ee 08 4f 00 00 be 08 00 00 00 49 8d be 00 44 81 8b e8 0d b1 17 00 49 01 9e 00 44 81 8b 31 db eb 8d 0f 0b eb af 89 74 24 04 e8 84
RSP: 0018:ffffc9000280ef68 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000019 RCX: ffffffff81a6be93
RDX: fffffbfff1702883 RSI: 0000000000000008 RDI: ffffffff8b814410
RBP: ffff88813fffef18 R08: 0000000000000001 R09: ffffffff8b814417
R10: fffffbfff1702882 R11: 0000000000000000 R12: 00000000000401c3
R13: 0000000000000002 R14: 0000000000000010 R15: ffffea0002b0e100
FS: 00007fa7be8cc8c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff24ea98303 CR3: 000000007a054000 CR4: 0000000000350ef0
Call Trace:
__mod_lruvec_state+0x42/0x80 mm/memcontrol.c:725
update_lru_size include/linux/mm_inline.h:39 [inline]
lruvec_add_folio include/linux/mm_inline.h:98 [inline]
add_page_to_lru_list include/linux/mm_inline.h:106 [inline]
move_pages_to_lru+0x7ed/0x16b0 mm/vmscan.c:2316
shrink_inactive_list mm/vmscan.c:2397 [inline]
shrink_list mm/vmscan.c:2621 [inline]
shrink_lruvec+0xcb4/0x2660 mm/vmscan.c:2940
shrink_node_memcgs mm/vmscan.c:3129 [inline]
shrink_node+0x858/0x1eb0 mm/vmscan.c:3252
shrink_zones mm/vmscan.c:3485 [inline]
do_try_to_free_pages+0x4e2/0x1640 mm/vmscan.c:3541
try_to_free_pages+0x29f/0x750 mm/vmscan.c:3776
__perform_reclaim mm/page_alloc.c:4588 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:4609 [inline]
__alloc_pages_slowpath.constprop.0+0xac7/0x20d0 mm/page_alloc.c:5007
__alloc_pages+0x412/0x500 mm/page_alloc.c:5382
alloc_pages+0x1a7/0x300 mm/mempolicy.c:2191
folio_alloc+0x1c/0x70 mm/mempolicy.c:2201
filemap_alloc_folio mm/filemap.c:1036 [inline]
__filemap_get_folio+0x5f2/0xd60 mm/filemap.c:1951
pagecache_get_page+0x2c/0x1a0 mm/folio-compat.c:125
filemap_fault+0x15ee/0x26d0 mm/filemap.c:3099
__do_fault+0x10d/0x4d0 mm/memory.c:3849
do_read_fault mm/memory.c:4164 [inline]
do_fault mm/memory.c:4293 [inline]
handle_pte_fault mm/memory.c:4551 [inline]
__handle_mm_fault+0x28e8/0x5120 mm/memory.c:4686
handle_mm_fault+0x1c8/0x790 mm/memory.c:4784
do_user_addr_fault+0x489/0x11c0 arch/x86/mm/fault.c:1397
handle_page_fault arch/x86/mm/fault.c:1485 [inline]
exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1541
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x7fa7bdb952e3
Code: Unable to access opcode bytes at RIP 0x7fa7bdb952b9.
RSP: 002b:00007ffc38ecaa98 EFLAGS: 00010246
RAX: 0000000000000001 RBX: 000055c74c2b91e0 RCX: 00007fa7bdb952e3
RDX: 0000000000000013 RSI: 00007ffc38ecaaa0 RDI: 0000000000000008
RBP: 00007ffc38ecac90 R08: 0000000000000000 R09: 00007ffc38ee2080
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc38ecaaa0
R13: 0000000000000001 R14: ffffffffffffffff R15: 0005d2332e9d7165
----------------
Code disassembly (best guess):
0: 89 ef mov %ebp,%edi
2: e8 30 b1 17 00 callq 0x17b137
7: f0 48 01 5d 00 lock add %rbx,0x0(%rbp)
c: 49 83 fd 28 cmp $0x28,%r13
10: 77 3a ja 0x4c
12: 49 81 ee 08 4f 00 00 sub $0x4f08,%r14
19: be 08 00 00 00 mov $0x8,%esi
1e: 49 8d be 00 44 81 8b lea -0x747ebc00(%r14),%rdi
25: e8 0d b1 17 00 callq 0x17b137
* 2a: f0 49 01 9e 00 44 81 lock add %rbx,-0x747ebc00(%r14) <-- trapping instruction
31: 8b
32: 31 db xor %ebx,%ebx
34: eb 8d jmp 0xffffffc3
36: 0f 0b ud2
38: eb af jmp 0xffffffe9
3a: 89 74 24 04 mov %esi,0x4(%rsp)
3e: e8 .byte 0xe8
3f: 84 .byte 0x84