rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: (detected by 1, t=10502 jiffies, g=43917, q=23 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10497 (4295027453-4295016956), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10497 jiffies! g43917 f0x2 RCU_GP_CLEANUP(7) ->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:26488 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
preempt_schedule_common+0x83/0xc0 kernel/sched/core.c:6838
preempt_schedule+0xdd/0xf0 kernel/sched/core.c:6862
preempt_schedule_thunk+0x1a/0x20 arch/x86/entry/thunk_64.S:34
__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
_raw_spin_unlock_irq+0x40/0x50 kernel/locking/spinlock.c:202
rcu_gp_cleanup+0x203/0xd70 kernel/rcu/tree.c:1691
rcu_gp_kthread+0xb5/0x3b0 kernel/rcu/tree.c:1812
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 12027 Comm: syz-executor.3 Not tainted 6.4.0-rc5-syzkaller-00017-ga27648c74210 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
RIP: 0010:kvm_wait+0x1c0/0x200 arch/x86/kernel/kvm.c:1060
Code: 03 42 0f b6 04 28 84 c0 75 46 45 0f b6 34 24 e8 56 fe 55 00 44 3a 74 24 1c 75 14 66 90 0f 00 2d f6 df ab 09 f3 0f 1e fa fb f4 c0 fe ff ff fb e9 ba fe ff ff 44 89 e1 80 e1 07 38 c1 0f 8c 4c
RSP: 0018:ffffc90000007860 EFLAGS: 00000246
RAX: b777a4d8a7e6cd00 RBX: 1ffff92000000f10 RCX: ffffffff816b847a
RDX: dffffc0000000000 RSI: ffffffff8aea8e20 RDI: ffffffff8b384480
RBP: ffffc90000007930 R08: dffffc0000000000 R09: fffffbfff2065265
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807e9318f0
R13: dffffc0000000000 R14: 0000000000000003 R15: ffffc900000078a0
FS: 00007f93c6022700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002006d030 CR3: 000000002aefe000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
pv_wait arch/x86/include/asm/paravirt.h:598 [inline]
pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
__pv_queued_spin_lock_slowpath+0x6ff/0xc50 kernel/locking/qspinlock.c:511
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:586 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
do_raw_spin_lock+0x297/0x3a0 kernel/locking/spinlock_debug.c:115
spin_lock include/linux/spinlock.h:350 [inline]
fq_pie_timer+0x8b/0x270 net/sched/sch_fq_pie.c:377
call_timer_fn+0x178/0x580 kernel/time/timer.c:1700
expire_timers kernel/time/timer.c:1751 [inline]
__run_timers+0x64f/0x860 kernel/time/timer.c:2022
run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2035
__do_softirq+0x2ab/0x908 kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x159/0x240 kernel/softirq.c:650
irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 de 03 2a f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 f3 ad a5 f6 65 8b 05 54 67 4a 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc900053af560 EFLAGS: 00000206
RAX: b777a4d8a7e6cd00 RBX: 1ffff92000a75eb0 RCX: ffffffff816b847a
RDX: dffffc0000000000 RSI: ffffffff8aea8e20 RDI: 0000000000000001
RBP: ffffc900053af5f0 R08: dffffc0000000000 R09: fffffbfff2065261
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff92000a75eac R14: ffffc900053af580 R15: 0000000000000246
spin_unlock_irqrestore include/linux/spinlock.h:405 [inline]
__skb_try_recv_datagram+0x1cb/0x6a0 net/core/datagram.c:265
__unix_dgram_recvmsg+0x3c5/0x1260 net/unix/af_unix.c:2452
sock_recvmsg_nosec+0x86/0xd0 net/socket.c:1019
____sys_recvmsg+0x475/0x570 net/socket.c:2720
___sys_recvmsg net/socket.c:2764 [inline]
do_recvmmsg+0x471/0xad0 net/socket.c:2858
__sys_recvmmsg net/socket.c:2937 [inline]
__do_sys_recvmmsg net/socket.c:2960 [inline]
__se_sys_recvmmsg net/socket.c:2953 [inline]
__x64_sys_recvmmsg+0x199/0x240 net/socket.c:2953
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f93c528c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f93c6022168 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f93c53ac050 RCX: 00007f93c528c169
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000005
RBP: 00007f93c52e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc76aef3df R14: 00007f93c6022300 R15: 0000000000022000
watchdog: BUG: soft lockup - CPU#0 stuck for 226s! [syz-executor.3:12027]
Modules linked in:
irq event stamp: 116911
hardirqs last enabled at (116910): [] kvm_wait+0x1aa/0x200
hardirqs last disabled at (116911): [] sysvec_apic_timer_interrupt+0xe/0xb0 arch/x86/kernel/apic/apic.c:1106
softirqs last enabled at (20434): [] invoke_softirq kernel/softirq.c:445 [inline]
softirqs last enabled at (20434): [] __irq_exit_rcu+0x159/0x240 kernel/softirq.c:650
softirqs last disabled at (21691): [] invoke_softirq kernel/softirq.c:445 [inline]
softirqs last disabled at (21691): [] __irq_exit_rcu+0x159/0x240 kernel/softirq.c:650
CPU: 0 PID: 12027 Comm: syz-executor.3 Not tainted 6.4.0-rc5-syzkaller-00017-ga27648c74210 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
RIP: 0010:kvm_wait+0x1c0/0x200 arch/x86/kernel/kvm.c:1060
Code: 03 42 0f b6 04 28 84 c0 75 46 45 0f b6 34 24 e8 56 fe 55 00 44 3a 74 24 1c 75 14 66 90 0f 00 2d f6 df ab 09 f3 0f 1e fa fb f4 c0 fe ff ff fb e9 ba fe ff ff 44 89 e1 80 e1 07 38 c1 0f 8c 4c
RSP: 0018:ffffc90000007860 EFLAGS: 00000246
RAX: b777a4d8a7e6cd00 RBX: 1ffff92000000f10 RCX: ffffffff816b847a
RDX: dffffc0000000000 RSI: ffffffff8aea8e20 RDI: ffffffff8b384480
RBP: ffffc90000007930 R08: dffffc0000000000 R09: fffffbfff2065265
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807e9318f0
R13: dffffc0000000000 R14: 0000000000000003 R15: ffffc900000078a0
FS: 00007f93c6022700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002006d030 CR3: 000000002aefe000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
pv_wait arch/x86/include/asm/paravirt.h:598 [inline]
pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
__pv_queued_spin_lock_slowpath+0x6ff/0xc50 kernel/locking/qspinlock.c:511
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:586 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
do_raw_spin_lock+0x297/0x3a0 kernel/locking/spinlock_debug.c:115
spin_lock include/linux/spinlock.h:350 [inline]
fq_pie_timer+0x8b/0x270 net/sched/sch_fq_pie.c:377
call_timer_fn+0x178/0x580 kernel/time/timer.c:1700
expire_timers kernel/time/timer.c:1751 [inline]
__run_timers+0x64f/0x860 kernel/time/timer.c:2022
run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2035
__do_softirq+0x2ab/0x908 kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x159/0x240 kernel/softirq.c:650
irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 de 03 2a f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 f3 ad a5 f6 65 8b 05 54 67 4a 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc900053af560 EFLAGS: 00000206
RAX: b777a4d8a7e6cd00 RBX: 1ffff92000a75eb0 RCX: ffffffff816b847a
RDX: dffffc0000000000 RSI: ffffffff8aea8e20 RDI: 0000000000000001
RBP: ffffc900053af5f0 R08: dffffc0000000000 R09: fffffbfff2065261
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff92000a75eac R14: ffffc900053af580 R15: 0000000000000246
spin_unlock_irqrestore include/linux/spinlock.h:405 [inline]
__skb_try_recv_datagram+0x1cb/0x6a0 net/core/datagram.c:265
__unix_dgram_recvmsg+0x3c5/0x1260 net/unix/af_unix.c:2452
sock_recvmsg_nosec+0x86/0xd0 net/socket.c:1019
____sys_recvmsg+0x475/0x570 net/socket.c:2720
___sys_recvmsg net/socket.c:2764 [inline]
do_recvmmsg+0x471/0xad0 net/socket.c:2858
__sys_recvmmsg net/socket.c:2937 [inline]
__do_sys_recvmmsg net/socket.c:2960 [inline]
__se_sys_recvmmsg net/socket.c:2953 [inline]
__x64_sys_recvmmsg+0x199/0x240 net/socket.c:2953
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f93c528c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f93c6022168 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f93c53ac050 RCX: 00007f93c528c169
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000005
RBP: 00007f93c52e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc76aef3df R14: 00007f93c6022300 R15: 0000000000022000
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 12029 Comm: syz-executor.3 Not tainted 6.4.0-rc5-syzkaller-00017-ga27648c74210 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:__list_del include/linux/list.h:114 [inline]
RIP: 0010:__list_del_entry include/linux/list.h:137 [inline]
RIP: 0010:list_move_tail include/linux/list.h:229 [inline]
RIP: 0010:fq_pie_qdisc_dequeue+0x373/0xa40 net/sched/sch_fq_pie.c:248
Code: 3c 18 00 74 08 4c 89 e7 e8 9a 3d 12 f9 4d 8b 34 24 49 8d 5e 08 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 <74> 08 48 89 df e8 13 3e 12 f9 48 89 2b 48 89 e8 48 c1 e8 03 48 b9
RSP: 0018:ffffc900001e0328 EFLAGS: 00000246
RAX: 1ffff1100fd2635d RBX: ffff88807e931ae8 RCX: dffffc0000000000
RDX: 0000000000000302 RSI: 0000000000000000 RDI: ffff88803e7c5d18
RBP: ffff88807e931ae0 R08: ffffffff88d11468 R09: ffffffff88ba5b0e
R10: 0000000000000002 R11: ffff88802d598000 R12: ffff88803e7c5d10
R13: ffff88807e931800 R14: ffff88807e931ae0 R15: ffff88807e931af0
FS: 00007f93c6001700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f14f130e844 CR3: 000000002aefe000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
dequeue_skb net/sched/sch_generic.c:292 [inline]
qdisc_restart net/sched/sch_generic.c:397 [inline]
__qdisc_run+0x26e/0x20a0 net/sched/sch_generic.c:415
__dev_xmit_skb net/core/dev.c:3868 [inline]
__dev_queue_xmit+0x1397/0x38b0 net/core/dev.c:4210
neigh_output include/net/neighbour.h:544 [inline]
ip6_finish_output2+0xf80/0x1560 net/ipv6/ip6_output.c:134
__ip6_finish_output net/ipv6/ip6_output.c:195 [inline]
ip6_finish_output+0x6b0/0xa80 net/ipv6/ip6_output.c:206
dst_output include/net/dst.h:458 [inline]
NF_HOOK include/linux/netfilter.h:303 [inline]
ndisc_send_skb+0xb08/0x1390 net/ipv6/ndisc.c:508
addrconf_rs_timer+0x35b/0x620 net/ipv6/addrconf.c:3936
call_timer_fn+0x178/0x580 kernel/time/timer.c:1700
expire_timers kernel/time/timer.c:1751 [inline]
__run_timers+0x64f/0x860 kernel/time/timer.c:2022
run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2035
__do_softirq+0x2ab/0x908 kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x159/0x240 kernel/softirq.c:650
irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:console_flush_all+0x8a7/0xd70
Code: cd f9 ff ff e8 6a b3 1c 00 0f 0b e9 87 fa ff ff e8 5e b3 1c 00 e8 39 a3 40 09 4d 85 f6 74 c6 e8 4f b3 1c 00 fb 4c 8b 74 24 68 <48> 8b 44 24 70 42 0f b6 04 20 84 c0 0f 85 16 02 00 00 48 8b 44 24
RSP: 0018:ffffc90008846700 EFLAGS: 00000287
RAX: ffffffff816ecbe1 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000c8df000 RSI: 000000000002d32a RDI: 000000000002d32b
RBP: ffffc900088468b0 R08: ffffffff816ecb8e R09: fffffbfff206524d
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: ffffffff8d655538 R15: ffffffff8d6554e0
console_unlock+0xff/0x270 kernel/printk/printk.c:3007
vprintk_emit+0xd5/0x1f0 kernel/printk/printk.c:2307
_printk+0xd5/0x120 kernel/printk/printk.c:2328
addrconf_notify+0xb49/0xfe0 net/ipv6/addrconf.c:3636
notifier_call_chain+0x18c/0x3a0 kernel/notifier.c:93
call_netdevice_notifiers_info net/core/dev.c:1935 [inline]
netdev_state_change+0x1a7/0x250 net/core/dev.c:1317
do_setlink+0x3484/0x4130 net/core/rtnetlink.c:3102
rtnl_group_changelink net/core/rtnetlink.c:3402 [inline]
__rtnl_newlink net/core/rtnetlink.c:3658 [inline]
rtnl_newlink+0x10b9/0x2010 net/core/rtnetlink.c:3695
rtnetlink_rcv_msg+0x825/0xf40 net/core/rtnetlink.c:6417
netlink_rcv_skb+0x1df/0x430 net/netlink/af_netlink.c:2546
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x7c3/0x990 net/netlink/af_netlink.c:1365
netlink_sendmsg+0xa2a/0xd60 net/netlink/af_netlink.c:1913
sock_sendmsg_nosec net/socket.c:724 [inline]
sock_sendmsg net/socket.c:747 [inline]
____sys_sendmsg+0x58f/0x890 net/socket.c:2503
___sys_sendmsg net/socket.c:2557 [inline]
__sys_sendmsg+0x2ad/0x390 net/socket.c:2586
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f93c528c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f93c6001168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f93c53ac120 RCX: 00007f93c528c169
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000007
RBP: 00007f93c52e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc76aef3df R14: 00007f93c6001300 R15: 0000000000022000