INFO: task kcompactd0:30 blocked for more than 143 seconds.
Not tainted 5.15.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kcompactd0 state:D stack:28576 pid: 30 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4969 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6250
schedule+0xd2/0x260 kernel/sched/core.c:6323
io_schedule+0xee/0x170 kernel/sched/core.c:8368
folio_wait_bit_common+0x4f2/0xa60 mm/filemap.c:1371
lock_page include/linux/pagemap.h:780 [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:
#0: ffff888016470f88 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline]
#0: ffff888016470f88 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0xc7e/0x26d0 mm/filemap.c:3081
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:
2 locks held by kswapd0/97:
1 lock held by kswapd1/98:
1 lock held by systemd-journal/2967:
1 lock held by systemd-udevd/2969:
1 lock held by systemd-timesyn/3057:
1 lock held by cron/6203:
2 locks held by in:imklog/6216:
1 lock held by syz-fuzzer/6497:
#0: ffff88807e3bd550 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline]
#0: ffff88807e3bd550 (mapping.invalidate_lock){++++}-{3:3}, at: page_cache_ra_unbounded+0x1b3/0x940 mm/readahead.c:194
1 lock held by syz-executor.4/12383:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 45 Comm: kworker/u4:2 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy14 ieee80211_iface_work
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200
Code: 48 89 ef 5d e9 a1 19 46 00 5d be 03 00 00 00 e9 a6 0d 63 02 66 0f 1f 44 00 00 48 8b be b0 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 <65> 8b 05 09 89 8a 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc9000115f050 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 000000000000000a RCX: ffff888011fc1d00
RDX: 0000000000000000 RSI: ffff888011fc1d00 RDI: 0000000000000003
RBP: 0000000000000000 R08: 000000000000001b R09: 000000000000000a
R10: ffffffff840db72a R11: 000000000000000a R12: 000000000000001b
R13: 0000000000000000 R14: ffffc9000115f384 R15: ffffc9000115f379
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001244010 CR3: 000000006ed79000 CR4: 0000000000350ee0
Call Trace:
number+0x9d1/0xae0 lib/vsprintf.c:503
vsnprintf+0xf09/0x14f0 lib/vsprintf.c:2871
snprintf+0xbb/0xf0 lib/vsprintf.c:2938
print_caller kernel/printk/printk.c:1270 [inline]
info_print_prefix+0x11c/0x340 kernel/printk/printk.c:1289
record_print_text+0x14d/0x3e0 kernel/printk/printk.c:1336
console_unlock+0x2d8/0xb70 kernel/printk/printk.c:2692
vprintk_emit+0x198/0x4f0 kernel/printk/printk.c:2245
vprintk+0x80/0x90 kernel/printk/printk_safe.c:50
_printk+0xba/0xed kernel/printk/printk.c:2266
slab_out_of_memory.cold+0xe9/0xf2 mm/slub.c:2819
___slab_alloc+0xce1/0xfe0 mm/slub.c:3026
__slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3109
slab_alloc_node mm/slub.c:3200 [inline]
slab_alloc mm/slub.c:3242 [inline]
kmem_cache_alloc_trace+0x289/0x2c0 mm/slub.c:3259
kmalloc include/linux/slab.h:590 [inline]
kzalloc include/linux/slab.h:724 [inline]
ieee802_11_parse_elems_crc+0xd5/0x1050 net/mac80211/util.c:1471
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2208 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1605 [inline]
ieee80211_ibss_rx_queued_mgmt+0xd0e/0x3130 net/mac80211/ibss.c:1639
ieee80211_iface_process_skb net/mac80211/iface.c:1466 [inline]
ieee80211_iface_work+0xa65/0xd00 net/mac80211/iface.c:1520
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: 48 89 ef mov %rbp,%rdi
3: 5d pop %rbp
4: e9 a1 19 46 00 jmpq 0x4619aa
9: 5d pop %rbp
a: be 03 00 00 00 mov $0x3,%esi
f: e9 a6 0d 63 02 jmpq 0x2630dba
14: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
1a: 48 8b be b0 01 00 00 mov 0x1b0(%rsi),%rdi
21: e8 b4 ff ff ff callq 0xffffffda
26: 31 c0 xor %eax,%eax
28: c3 retq
29: 90 nop
* 2a: 65 8b 05 09 89 8a 7e mov %gs:0x7e8a8909(%rip),%eax # 0x7e8a893a <-- trapping instruction
31: 89 c1 mov %eax,%ecx
33: 48 8b 34 24 mov (%rsp),%rsi
37: 81 e1 00 01 00 00 and $0x100,%ecx
3d: 65 gs
3e: 48 rex.W
3f: 8b .byte 0x8b