rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10939/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=42613, q=566 ncpus=2)
task:syz.1.2068 state:R running task stack:19920 pid:10939 tgid:10937 ppid:8731 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6675
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6854
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6878
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
zap_pte_range mm/memory.c:1700 [inline]
zap_pmd_range mm/memory.c:1748 [inline]
zap_pud_range mm/memory.c:1777 [inline]
zap_p4d_range mm/memory.c:1798 [inline]
unmap_page_range+0x36b1/0x40e0 mm/memory.c:1819
unmap_vmas+0x3cc/0x5f0 mm/memory.c:1909
exit_mmap+0x275/0xc40 mm/mmap.c:1864
__mmput+0x115/0x390 kernel/fork.c:1346
exit_mm+0x220/0x310 kernel/exit.c:571
do_exit+0x9b2/0x28e0 kernel/exit.c:926
do_group_exit+0x207/0x2c0 kernel/exit.c:1088
get_signal+0x16a3/0x1740 kernel/signal.c:2917
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9cc5d7dff9
RSP: 002b:00007f9cc6c550e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f9cc5f35f88 RCX: 00007f9cc5d7dff9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f9cc5f35f8c
RBP: 00007f9cc5f35f80 R08: 7fffffffffffffff R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f9cc5f35f8c
R13: 0000000000000000 R14: 00007ffdbb7fec30 R15: 00007ffdbb7fed18
rcu: rcu_preempt kthread starved for 506 jiffies! g42613 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:25888 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6767
schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.12.0-rc1-next-20240930-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:245 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x8/0x90 kernel/kcov.c:314
Code: 44 0a 20 c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 <65> 48 8b 14 25 c0 d7 03 00 65 8b 05 50 fd 6e 7e 25 00 01 ff 00 74
RSP: 0018:ffffc90000007218 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffffff9a419afc RCX: 0000000000000018
RDX: 0000000000010100 RSI: 0000000000000018 RDI: 0000000000000040
RBP: ffffc90000007340 R08: ffffffff81872c32 R09: 1ffffffff2859d01
R10: dffffc0000000000 R11: fffffbfff2859d02 R12: 001b1b02b36f1fc2
R13: dffffc0000000000 R14: 0000000000000018 R15: 1ffffffff22ef623
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3218426924 CR3: 000000006640c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
update_vdso_data kernel/time/vsyscall.c:61 [inline]
update_vsyscall+0xa72/0x10a0 kernel/time/vsyscall.c:120
timekeeping_update+0x296/0x450 kernel/time/timekeeping.c:764
timekeeping_advance+0x784/0xa90 kernel/time/timekeeping.c:2344
update_wall_time+0x10/0x30 kernel/time/timekeeping.c:2360
tick_sched_do_timer kernel/time/tick-sched.c:232 [inline]
tick_nohz_handler+0xa6/0x500 kernel/time/tick-sched.c:290
__run_hrtimer kernel/time/hrtimer.c:1691 [inline]
__hrtimer_run_queues+0x551/0xd50 kernel/time/hrtimer.c:1755
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1817
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1026 [inline]
__sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1043
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline]
sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1037
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:ip6_mc_input+0x294/0xc30 net/ipv6/ip6_input.c:503
Code: 00 00 00 00 00 fc ff df 43 80 3c 27 00 74 08 4c 89 f7 e8 cf 7f 97 f7 49 8b 1e 48 83 e3 fe 48 89 d8 48 c1 e8 03 42 80 3c 20 00 <74> 08 48 89 df e8 b2 7f 97 f7 41 bf 18 01 00 00 4c 03 3b e8 14 93
RSP: 0018:ffffc900000077a0 EFLAGS: 00000246
RAX: 1ffff11005d2bef0 RBX: ffff88802e95f780 RCX: ffff88801d2c8000
RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000007870 R08: ffffffff8a6739ed R09: 1ffffffff203a295
R10: dffffc0000000000 R11: ffffffff8a6737b0 R12: dffffc0000000000
R13: ffff888154c518c0 R14: ffff888154c51918 R15: 1ffff1102a98a323
NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314
__netif_receive_skb_one_core net/core/dev.c:5662 [inline]
__netif_receive_skb+0x1ea/0x650 net/core/dev.c:5775
process_backlog+0x662/0x15b0 net/core/dev.c:6107
__napi_poll+0xcb/0x490 net/core/dev.c:6771
napi_poll net/core/dev.c:6840 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:6962
handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
do_softirq+0x11b/0x1e0 kernel/softirq.c:455
__local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382
spin_unlock_bh include/linux/spinlock.h:396 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline]
nsim_dev_trap_report_work+0x75d/0xaa0 drivers/net/netdevsim/dev.c:850
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
net_ratelimit: 13614 callbacks suppressed
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:f2:2c:53:a7:a5:a7, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:f2:2c:53:a7:a5:a7, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:f2:2c:53:a7:a5:a7, vlan:0)