rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
(detected by 1, t=10502 jiffies, g=337761, q=17)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4295260962-4295250459), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10504 jiffies! g337761 f0x2 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:
NMI backtrace for cpu 1
CPU: 1 PID: 29865 Comm: syz-executor.2 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_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_check_gp_kthread_starvation.cold+0x1fb/0x200 kernel/rcu/tree_stall.h:481
print_other_cpu_stall kernel/rcu/tree_stall.h:586 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:729 [inline]
rcu_pending kernel/rcu/tree.c:3878 [inline]
rcu_sched_clock_irq+0x2125/0x2200 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:find_vma+0x12d/0x270 mm/mmap.c:2284
Code: ff 4c 89 e7 e8 64 de fb ff 0f 0b e8 6d c5 c8 ff 49 8d 7c 24 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 2c 01 00 00 49 8b 5c 24 08 48 85 db 0f 84 e4 00 00 00 49 be
RSP: 0018:ffffc900160f7bd8 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 0000000000000100 RCX: ffffc9000e35f000
RDX: 1ffff11004a249a1 RSI: ffffffff81af00c3 RDI: ffff888025124d08
RBP: 0000000000000000 R08: 0000000000000004 R09: ffff888025124dbf
R10: ffffffff81aa2c17 R11: 0000000000000000 R12: ffff888025124d00
R13: 0000000000000000 R14: 000000000000000e R15: dffffc0000000000
vma_lookup include/linux/mm.h:2821 [inline]
do_pages_stat_array mm/migrate.c:1880 [inline]
do_pages_stat+0x358/0x5e0 mm/migrate.c:1948
kernel_move_pages+0xcd4/0x14e0 mm/migrate.c:2035
__do_sys_move_pages mm/migrate.c:2046 [inline]
__se_sys_move_pages mm/migrate.c:2041 [inline]
__x64_sys_move_pages+0xdd/0x1b0 mm/migrate.c:2041
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f7f7d31fae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7f7a895188 EFLAGS: 00000246 ORIG_RAX: 0000000000000117
RAX: ffffffffffffffda RBX: 00007f7f7d432f60 RCX: 00007f7f7d31fae9
RDX: 0000000020000080 RSI: 0000000020000047 RDI: 0000000000000000
RBP: 00007f7f7d379f45 R08: 0000000020000100 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7f7d966b2f R14: 00007f7f7a895300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: ff 4c 89 e7 decl -0x19(%rcx,%rcx,4)
4: e8 64 de fb ff callq 0xfffbde6d
9: 0f 0b ud2
b: e8 6d c5 c8 ff callq 0xffc8c57d
10: 49 8d 7c 24 08 lea 0x8(%r12),%rdi
15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1c: fc ff df
1f: 48 89 fa mov %rdi,%rdx
22: 48 c1 ea 03 shr $0x3,%rdx
26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
* 2a: 0f 85 2c 01 00 00 jne 0x15c <-- trapping instruction
30: 49 8b 5c 24 08 mov 0x8(%r12),%rbx
35: 48 85 db test %rbx,%rbx
38: 0f 84 e4 00 00 00 je 0x122
3e: 49 rex.WB
3f: be .byte 0xbe