rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-...!: (10499 ticks this GP) idle=5c7/1/0x4000000000000000 softirq=227238/227238 fqs=12
(t=10500 jiffies g=398649 q=1026)
rcu: rcu_preempt kthread starved for 10468 jiffies! g398649 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:28696 pid: 14 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
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1955
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2128
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 31884 Comm: kworker/1:5 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events prog_array_map_clear_deferred
RIP: 0010:kasan_check_range+0x17/0x180 mm/kasan/generic.c:188
Code: 0f 1f 00 48 89 f2 be f8 00 00 00 e9 a3 32 3a 02 0f 1f 00 48 85 f6 0f 84 70 01 00 00 49 89 f9 41 54 44 0f b6 c2 49 01 f1 55 53 <0f> 82 18 01 00 00 48 b8 ff ff ff ff ff 7f ff ff 48 39 c7 0f 86 05
RSP: 0018:ffffc90004807890 EFLAGS: 00000092
RAX: 000000000000002d RBX: 0000000000000b7e RCX: ffffffff815c50df
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fd38b68
RBP: ffff8880151d44d2 R08: 0000000000000000 R09: ffffffff8fd38b70
R10: fffffbfff1fa716d R11: 0000000000000000 R12: ffff8880151d44b0
R13: ffff8880151d3a00 R14: 0000000000000000 R15: 3457806d58a07194
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f411ef079e0 CR3: 000000000b68e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:71 [inline]
test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
hlock_class kernel/locking/lockdep.c:199 [inline]
lookup_chain_cache_add kernel/locking/lockdep.c:3701 [inline]
validate_chain kernel/locking/lockdep.c:3757 [inline]
__lock_acquire+0x162f/0x54a0 kernel/locking/lockdep.c:5015
lock_acquire kernel/locking/lockdep.c:5625 [inline]
lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
__mutex_lock_common kernel/locking/mutex.c:607 [inline]
__mutex_lock+0x12f/0x12f0 kernel/locking/mutex.c:740
fd_array_map_delete_elem+0x120/0x2e0 kernel/bpf/arraymap.c:821
bpf_fd_array_map_clear kernel/bpf/arraymap.c:871 [inline]
prog_array_map_clear_deferred+0x10b/0x1b0 kernel/bpf/arraymap.c:1050
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2297
worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
NMI backtrace for cpu 0
CPU: 0 PID: 23294 Comm: kworker/0:38 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events prog_array_map_clear_deferred
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_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
rcu_pending kernel/rcu/tree.c:3878 [inline]
rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2597
update_process_times+0x16d/0x200 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:check_region_inline mm/kasan/generic.c:170 [inline]
RIP: 0010:kasan_check_range+0x12c/0x180 mm/kasan/generic.c:189
Code: 00 74 ef 49 8d 04 2c 48 85 d2 75 0b 48 89 da 48 29 c2 e9 55 ff ff ff 49 39 d2 75 17 49 0f be 02 41 83 e1 07 49 39 c1 7d 0a 5b 01 00 00 00 5d 41 5c c3 44 89 c2 e8 73 f0 ff ff 5b 83 f0 01 5d
RSP: 0018:ffffc90004da7b28 EFLAGS: 00000246
RAX: fffff520009b4f71 RBX: 1ffff920009b4f6c RCX: ffffffff89392567
RDX: fffff520009b4f71 RSI: 0000000000000008 RDI: ffffc90004da7b80
RBP: fffff520009b4f70 R08: 0000000000000001 R09: ffffc90004da7b87
R10: fffff520009b4f70 R11: 0000000000000000 R12: 0000000000000003
R13: fffffbfff2050d38 R14: ffff88801990d460 R15: dffffc0000000000
instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
atomic_long_try_cmpxchg_release include/linux/atomic/atomic-instrumented.h:1676 [inline]
__mutex_unlock_slowpath+0x157/0x5e0 kernel/locking/mutex.c:917
fd_array_map_delete_elem+0x1b0/0x2e0 kernel/bpf/arraymap.c:824
bpf_fd_array_map_clear kernel/bpf/arraymap.c:871 [inline]
prog_array_map_clear_deferred+0x10b/0x1b0 kernel/bpf/arraymap.c:1050
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2297
worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: 0f 1f 00 nopl (%rax)
3: 48 89 f2 mov %rsi,%rdx
6: be f8 00 00 00 mov $0xf8,%esi
b: e9 a3 32 3a 02 jmpq 0x23a32b3
10: 0f 1f 00 nopl (%rax)
13: 48 85 f6 test %rsi,%rsi
16: 0f 84 70 01 00 00 je 0x18c
1c: 49 89 f9 mov %rdi,%r9
1f: 41 54 push %r12
21: 44 0f b6 c2 movzbl %dl,%r8d
25: 49 01 f1 add %rsi,%r9
28: 55 push %rbp
29: 53 push %rbx
* 2a: 0f 82 18 01 00 00 jb 0x148 <-- trapping instruction
30: 48 b8 ff ff ff ff ff movabs $0xffff7fffffffffff,%rax
37: 7f ff ff
3a: 48 39 c7 cmp %rax,%rdi
3d: 0f .byte 0xf
3e: 86 .byte 0x86
3f: 05 .byte 0x5