rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-....: (1 GPs behind) idle=406/1/0x4000000000000000 softirq=148301/148302 fqs=5220
(t=10502 jiffies g=265453 q=40442)
NMI backtrace for cpu 1
CPU: 1 PID: 15189 Comm: syz-executor.2 Not tainted 5.10.0-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:77 [inline]
dump_stack+0x107/0x163 lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x1e3/0x21e kernel/rcu/tree_stall.h:318
print_cpu_stall kernel/rcu/tree_stall.h:551 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:625 [inline]
rcu_pending kernel/rcu/tree.c:3694 [inline]
rcu_sched_clock_irq.cold+0x4db/0xded kernel/rcu/tree.c:2567
update_process_times+0x77/0xd0 kernel/time/timer.c:1709
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:176
tick_sched_timer+0x1d1/0x2a0 kernel/time/tick-sched.c:1328
__run_hrtimer kernel/time/hrtimer.c:1519 [inline]
__hrtimer_run_queues+0x1ce/0xea0 kernel/time/hrtimer.c:1583
hrtimer_interrupt+0x334/0x940 kernel/time/hrtimer.c:1645
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
__sysvec_apic_timer_interrupt+0x146/0x540 arch/x86/kernel/apic/apic.c:1097
run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:91 [inline]
sysvec_apic_timer_interrupt+0x48/0x100 arch/x86/kernel/apic/apic.c:1091
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:199
Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 ee 57 6e f8 48 89 ef e8 56 18 6f f8 e8 f1 01 8e f8 fb bf 01 00 00 00 96 6b 63 f8 65 8b 05 0f 16 1a 77 85 c0 74 02 5d c3 e8 ab 6b 18
RSP: 0018:ffffc90000d90e18 EFLAGS: 00000202
RAX: 0000000000f5aa34 RBX: ffffffff870dd700 RCX: ffffffff8155a797
RDX: 0000000000000000 RSI: 0000000000000103 RDI: 0000000000000001
RBP: ffff8880b9f246c0 R08: 0000000000000001 R09: ffffffff8ebaf677
R10: fffffbfff1d75ece R11: 0000000000000000 R12: ffffc90000d90eb0
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8880b9f246c0
expire_timers kernel/time/timer.c:1454 [inline]
__run_timers.part.0+0x66c/0xa50 kernel/time/timer.c:1747
__run_timers kernel/time/timer.c:1728 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1760
__do_softirq+0x2a0/0x9f6 kernel/softirq.c:298
asm_call_irq_on_stack+0xf/0x20
__run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77
invoke_softirq kernel/softirq.c:393 [inline]
__irq_exit_rcu kernel/softirq.c:423 [inline]
irq_exit_rcu+0x132/0x200 kernel/softirq.c:435
sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1091
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:199
Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 ee 57 6e f8 48 89 ef e8 56 18 6f f8 e8 f1 01 8e f8 fb bf 01 00 00 00 96 6b 63 f8 65 8b 05 0f 16 1a 77 85 c0 74 02 5d c3 e8 ab 6b 18
RSP: 0018:ffffc90001dbf248 EFLAGS: 00000202
RAX: 0000000000000d89 RBX: ffff888021418000 RCX: ffffffff8155a797
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001
RBP: ffff8880b9f34d00 R08: 0000000000000001 R09: ffffffff8ebaf677
R10: fffffbfff1d75ece R11: 0000000000000000 R12: ffff8880b9f34d00
R13: ffff888064630000 R14: 0000000000000000 R15: 0000000000000001
finish_lock_switch kernel/sched/core.c:3513 [inline]
finish_task_switch+0x150/0x7a0 kernel/sched/core.c:3613
context_switch kernel/sched/core.c:3777 [inline]
__schedule+0x89b/0x2130 kernel/sched/core.c:4523
preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:4784
irqentry_exit_cond_resched kernel/entry/common.c:357 [inline]
irqentry_exit_cond_resched kernel/entry/common.c:349 [inline]
irqentry_exit+0x7a/0xa0 kernel/entry/common.c:387
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:85 [inline]
RIP: 0010:lock_acquire kernel/locking/lockdep.c:5439 [inline]
RIP: 0010:lock_acquire+0x2cd/0x8c0 kernel/locking/lockdep.c:5401
Code: 48 c7 c7 40 5e 4b 89 48 83 c4 20 e8 7d 48 8f 07 b8 ff ff ff ff 65 0f c1 05 f0 c4 ab 7e 83 f8 01 0f 85 09 04 00 00 ff 34 24 9d 37 fe ff ff 65 ff 05 57 b4 ab 7e 48 8b 05 d0 b1 82 0b e8 0b 3d
RSP: 0018:ffffc90001dbf458 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 1ffff920003b7e8d RCX: ffffffff8155e6e0
RDX: 1ffff11004283121 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8ebaf677
R10: fffffbfff1d75ece R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff8b43e4e0 R14: 0000000000000000 R15: 0000000000000000
__fs_reclaim_acquire mm/page_alloc.c:4291 [inline]
fs_reclaim_acquire+0xc1/0xf0 mm/page_alloc.c:4302
prepare_alloc_pages mm/page_alloc.c:4889 [inline]
__alloc_pages_nodemask+0x169/0x730 mm/page_alloc.c:4936
alloc_pages_current+0x191/0x2a0 mm/mempolicy.c:2271
alloc_pages include/linux/gfp.h:547 [inline]
__pte_alloc_one include/asm-generic/pgalloc.h:63 [inline]
pte_alloc_one+0x16/0x190 arch/x86/mm/pgtable.c:33
do_huge_pmd_anonymous_page+0xae7/0x2050 mm/huge_memory.c:715
create_huge_pmd mm/memory.c:4256 [inline]
__handle_mm_fault mm/memory.c:4480 [inline]
handle_mm_fault+0x335a/0x55d0 mm/memory.c:4607
do_user_addr_fault+0x55b/0xb40 arch/x86/mm/fault.c:1372
handle_page_fault arch/x86/mm/fault.c:1429 [inline]
exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1485
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:583
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x40 arch/x86/lib/copy_user_64.S:206
Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 1f 00 c3 0f 1f 80 00 00 00 00 0f 1f 00 83 fa 40 0f 82 70 ff ff ff 89 d1 a4 31 c0 0f 1f 00 c3 66 2e 0f 1f 84 00 00 00 00 00 89 d1 83 f8
RSP: 0018:ffffc90001dbf9d0 EFLAGS: 00010206
RAX: 0000000000000001 RBX: 0000000000008000 RCX: 0000000000008000
RDX: 0000000000008000 RSI: 0000000020f6f000 RDI: ffff88809dad8000
RBP: ffff88809dad8000 R08: 0000000000000001 R09: ffff88809dadffff
R10: ffffed1013b5bfff R11: 0000000000000000 R12: 0000000020f6f000
R13: 0000000020f77000 R14: 0000000000000000 R15: 0000000000000000
copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
raw_copy_from_user arch/x86/include/asm/uaccess_64.h:52 [inline]
copyin.part.0+0xe4/0x110 lib/iov_iter.c:159
copyin lib/iov_iter.c:795 [inline]
_copy_from_iter_full+0x22f/0x920 lib/iov_iter.c:795
copy_from_iter_full include/linux/uio.h:155 [inline]
skb_do_copy_data_nocache+0x145/0x2c0 include/net/sock.h:2036
skb_copy_to_page_nocache include/net/sock.h:2062 [inline]
tcp_sendmsg_locked+0x12ea/0x2d20 net/ipv4/tcp.c:1347
tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1444
inet6_sendmsg+0x99/0xe0 net/ipv6/af_inet6.c:638
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:671
__sys_sendto+0x21c/0x320 net/socket.c:1992
__do_sys_sendto net/socket.c:2004 [inline]
__se_sys_sendto net/socket.c:2000 [inline]
__x64_sys_sendto+0xdd/0x1b0 net/socket.c:2000
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45deb9
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f78a2792c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 000000000002e940 RCX: 000000000045deb9
RDX: fffffffffffffea7 RSI: 0000000020f6f000 RDI: 0000000000000008
RBP: 000000000118bf78 R08: 0000000020b63fe4 R09: 000000000000001c
R10: 0000000020000004 R11: 0000000000000246 R12: 000000000118bf2c
R13: 000000000169fb7f R14: 00007f78a27939c0 R15: 000000000118bf2c