INFO: task kcompactd0:29 blocked for more than 143 seconds.
Not tainted 5.16.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kcompactd0 state:D stack:25528 pid: 29 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
io_schedule+0x83/0x100 kernel/sched/core.c:8371
folio_wait_bit_common+0x8aa/0xe00 mm/filemap.c:1371
lock_page include/linux/pagemap.h:780 [inline]
__unmap_and_move+0x9d9/0xda0 mm/migrate.c:980
unmap_and_move+0x321/0xd70 mm/migrate.c:1204
migrate_pages+0x562/0x16f0 mm/migrate.c:1481
compact_zone+0x2d23/0x3d10 mm/compaction.c:2399
kcompactd_do_work mm/compaction.c:2839 [inline]
kcompactd+0x937/0x2920 mm/compaction.c:2941
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
Showing all locks held in the system:
1 lock held by khungtaskd/26:
#0: ffffffff8cb1dd40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by kswapd1/99:
1 lock held by systemd-journal/2961:
2 locks held by in:imklog/6213:
3 locks held by kworker/u4:8/6327:
1 lock held by syz-fuzzer/6520:
3 locks held by kworker/0:9/9140:
3 locks held by kworker/1:17/10864:
2 locks held by syz-executor.3/13254:
#0: ffff888145e7c448 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline]
#0: ffff888145e7c448 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x1b8/0x9f0 mm/readahead.c:194
#1: ffffffff8cbe1e88 (pcpu_drain_mutex){+.+.}-{3:3}, at: __drain_all_pages+0x58/0x690 mm/page_alloc.c:3181
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 26 Comm: khungtaskd Not tainted 5.16.0-rc2-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+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x16a/0x280 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+0xc82/0xcd0 kernel/hung_task.c:295
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2470 Comm: kworker/u4:6 Not tainted 5.16.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy8 ieee80211_iface_work
RIP: 0010:__kasan_check_write+0x2/0x10 mm/kasan/shadow.c:37
Code: fe 31 c0 e8 b8 6e 99 ff eb d3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc 89 f6 48 8b 0c 24 31 d2 e9 63 ee ff ff 0f 1f 00 89 f6 <48> 8b 0c 24 ba 01 00 00 00 e9 50 ee ff ff 55 41 56 53 48 89 d3 41
RSP: 0018:ffffc9000b24f838 EFLAGS: 00000286
RAX: 0000000000000004 RBX: 0000000000000000 RCX: ffffffff90bb1903
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88802131ccd8
RBP: ffffc9000b24f910 R08: dffffc0000000000 R09: ffffed100426399c
R10: ffffed100426399c R11: 0000000000000000 R12: ffff88802131ccd8
R13: ffff8880231f8000 R14: ffff8880231f8000 R15: 1ffff92001649f14
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004840e0 CR3: 000000007245d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
atomic_long_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1667 [inline]
__mutex_trylock_common+0x1d6/0x300 kernel/locking/mutex.c:126
__mutex_trylock kernel/locking/mutex.c:149 [inline]
__mutex_lock_common+0x1e3/0x2590 kernel/locking/mutex.c:609
__mutex_lock kernel/locking/mutex.c:740 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:792
sdata_lock net/mac80211/ieee80211_i.h:1013 [inline]
ieee80211_ibss_work+0xa0/0x14f0 net/mac80211/ibss.c:1681
process_one_work+0x853/0x1140 kernel/workqueue.c:2298
worker_thread+0xac1/0x1320 kernel/workqueue.c:2445
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 31 c0 xor %eax,%eax
2: e8 b8 6e 99 ff callq 0xff996ebf
7: eb d3 jmp 0xffffffdc
9: cc int3
a: cc int3
b: cc int3
c: cc int3
d: cc int3
e: cc int3
f: cc int3
10: cc int3
11: cc int3
12: cc int3
13: cc int3
14: cc int3
15: cc int3
16: cc int3
17: 89 f6 mov %esi,%esi
19: 48 8b 0c 24 mov (%rsp),%rcx
1d: 31 d2 xor %edx,%edx
1f: e9 63 ee ff ff jmpq 0xffffee87
24: 0f 1f 00 nopl (%rax)
27: 89 f6 mov %esi,%esi
* 29: 48 8b 0c 24 mov (%rsp),%rcx <-- trapping instruction
2d: ba 01 00 00 00 mov $0x1,%edx
32: e9 50 ee ff ff jmpq 0xffffee87
37: 55 push %rbp
38: 41 56 push %r14
3a: 53 push %rbx
3b: 48 89 d3 mov %rdx,%rbx
3e: 41 rex.B