Warning: Permanently added '[localhost]:14447' (ED25519) to the list of known hosts. 1970/01/01 00:23:50 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:24:34 parsed 1 programs syzkaller login: [ 1502.983542][ T3201] cgroup: Unknown subsys name 'net' [ 1503.676077][ T3201] cgroup: Unknown subsys name 'cpuset' [ 1503.782618][ T3201] cgroup: Unknown subsys name 'rlimit' [ 1563.015394][ T3201] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 1593.916531][ T3214] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 1669.727998][ T3496] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 1669.838165][ T3496] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 1677.866074][ T3496] hsr_slave_0: entered promiscuous mode [ 1677.903295][ T3496] hsr_slave_1: entered promiscuous mode [ 1680.926697][ T3496] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 1680.996999][ T3496] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 1681.044543][ T3496] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 1681.094311][ T3496] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 1686.377686][ T3496] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1711.380824][ T3496] veth0_vlan: entered promiscuous mode [ 1711.693190][ T3496] veth1_vlan: entered promiscuous mode [ 1712.834180][ T3496] veth0_macvtap: entered promiscuous mode [ 1713.031642][ T3496] veth1_macvtap: entered promiscuous mode [ 2019.140649][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 2019.142429][ C0] rcu: 0-...!: (1 GPs behind) idle=74ac/1/0x4000000000000000 softirq=21048/21049 fqs=2 [ 2019.145730][ C0] rcu: (t=30500 jiffies g=46949 q=5 ncpus=2) [ 2019.146600][ C0] rcu: rcu_preempt kthread timer wakeup didn't happen for 30495 jiffies! g46949 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 [ 2019.147642][ C0] rcu: Possible timer handling issue on cpu=1 timer-softirq=20630 [ 2019.148626][ C0] rcu: rcu_preempt kthread starved for 30496 jiffies! g46949 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 2019.149602][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 2019.150351][ C0] rcu: RCU grace-period kthread stack dump: [ 2019.151133][ C0] task:rcu_preempt state:I stack:0 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00000000 [ 2019.152822][ C0] Call Trace: [ 2019.153518][ C0] [] __schedule+0xe4c/0x3d70 [ 2019.155248][ C0] [] schedule+0xc4/0x324 [ 2019.156130][ C0] [] schedule_timeout+0x13e/0x28a [ 2019.156939][ C0] [] rcu_gp_fqs_loop+0x776/0xa80 [ 2019.157813][ C0] [] rcu_gp_kthread+0x22c/0x2a2 [ 2019.158660][ C0] [] kthread+0x37e/0x7b6 [ 2019.159545][ C0] [] ret_from_fork+0xe/0x18 [ 2019.160511][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 2019.161501][ C0] Sending NMI from CPU 0 to CPUs 1: [ 2019.163513][ C1] NMI backtrace for cpu 1 [ 2019.164758][ C1] CPU: 1 UID: 0 PID: 3496 Comm: syz-executor Not tainted 6.14.0-rc1-syzkaller-g245aece3750d #0 [ 2019.165346][ C1] Hardware name: riscv-virtio,qemu (DT) [ 2019.165731][ C1] epc : __kmalloc_cache_noprof+0x68/0x3f8 [ 2019.166247][ C1] ra : __kmalloc_cache_noprof+0x60/0x3f8 [ 2019.166704][ C1] epc : ffffffff809cc0bc ra : ffffffff809cc0b4 sp : ffff8f80000173b0 [ 2019.167045][ C1] gp : ffffffff89c1d3c0 tp : ffffaf8034890000 t0 : ffff8f8000017520 [ 2019.167379][ C1] t1 : fffff5ef036f48bb t2 : 000000000000001b s0 : ffff8f8000017460 [ 2019.167762][ C1] s1 : ffffaf8011401780 a0 : 0000000000000000 a1 : 0000000000000020 [ 2019.168070][ C1] a2 : 0000000000000001 a3 : 0000000000000000 a4 : 0000000000ff0100 [ 2019.168382][ C1] a5 : 0000000000000000 a6 : ffffffff809cc09e a7 : ffffaf801b7a45db [ 2019.168706][ C1] s2 : 0000000000002920 s3 : 0000000000002920 s4 : 0000000000000020 [ 2019.169013][ C1] s5 : ffffffff89c3ab00 s6 : ffffffff8193885a s7 : ffffffff87d90288 [ 2019.169357][ C1] s8 : 0000000000000000 s9 : 1ffff5f003a9bea2 s10: 1ffff5f003a9beab [ 2019.169713][ C1] s11: 1ffff1f000002ee0 t3 : ffffaf8034890b30 t4 : fffff5ef036f48bb [ 2019.170027][ C1] t5 : fffff5ef036f48bc t6 : 0000000000000002 [ 2019.170296][ C1] status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001 [ 2019.170722][ C1] [] __kmalloc_cache_noprof+0x68/0x3f8 [ 2019.171304][ C1] [] ref_tracker_alloc+0x18e/0x544 [ 2019.171828][ C1] [] dst_init+0xca/0x506 [ 2019.172311][ C1] [] dst_alloc+0xae/0x174 [ 2019.172797][ C1] [] icmp6_dst_alloc+0x6e/0x4c8 [ 2019.173251][ C1] [] ndisc_send_skb+0x13a4/0x1c30 [ 2019.173829][ C1] [] ndisc_send_rs+0x112/0x5c6 [ 2019.174389][ C1] [] addrconf_rs_timer+0x3da/0x80c [ 2019.174939][ C1] [] call_timer_fn+0x202/0xab8 [ 2019.175363][ C1] [] __run_timers+0x944/0xcf4 [ 2019.175824][ C1] [] run_timer_base+0x136/0x1b6 [ 2019.176228][ C1] [] run_timer_softirq+0x1c/0x52 [ 2019.176630][ C1] [] handle_softirqs+0x4b2/0x132e [ 2019.177038][ C1] [] __irq_exit_rcu+0x18c/0x550 [ 2019.177458][ C1] [] irq_exit_rcu+0x10/0xf8 [ 2019.177870][ C1] [] handle_riscv_irq+0x40/0x4c [ 2019.178445][ C1] [] call_on_irq_stack+0x32/0x40 [ 2019.180374][ C0] CPU: 0 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.14.0-rc1-syzkaller-g245aece3750d #0 [ 2019.180737][ C0] Hardware name: riscv-virtio,qemu (DT) [ 2019.181052][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 2019.181484][ C0] epc : __kmalloc_cache_noprof+0x68/0x3f8 [ 2019.181726][ C0] ra : __kmalloc_cache_noprof+0x60/0x3f8 [ 2019.181933][ C0] epc : ffffffff809cc0bc ra : ffffffff809cc0b4 sp : ffff8f80000c7180 [ 2019.182088][ C0] gp : ffffffff89c1d3c0 tp : ffffaf8012ac3480 t0 : 41f606a8f74adf85 [ 2019.182237][ C0] t1 : ffffaf8012ac4050 t2 : 0000000000000005 s0 : ffff8f80000c7230 [ 2019.182382][ C0] s1 : ffffaf8011401280 a0 : 0000000000000000 a1 : 0000000000000060 [ 2019.182523][ C0] a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000000 [ 2019.182663][ C0] a5 : 0000000000000000 a6 : ffffffff809cc09e a7 : ffffffff88cd689f [ 2019.182819][ C0] s2 : 0000000000000920 s3 : 0000000000000920 s4 : 0000000000000050 [ 2019.182962][ C0] s5 : ffffffff89c3ab00 s6 : ffffffff8357fe80 s7 : 0000000000000000 [ 2019.183109][ C0] s8 : fffffffef13a4928 s9 : 0000000000000000 s10: 0000000000000000 [ 2019.183250][ C0] s11: ffffaf8036384c00 t3 : ffffaf8012ac3fb0 t4 : 1ffff5f0025587f5 [ 2019.183399][ C0] t5 : 1ffff5f00255880e t6 : 0000000000000007 [ 2019.183549][ C0] status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000005 [ 2019.183713][ C0] [] __kmalloc_cache_noprof+0x68/0x3f8 [ 2019.183960][ C0] [] nsim_fib_event_nb+0x1c8/0xe68 [ 2019.184230][ C0] [] notifier_call_chain+0xa8/0x5f2 [ 2019.184477][ C0] [] atomic_notifier_call_chain+0x80/0x1f0 [ 2019.184743][ C0] [] call_fib_notifiers+0x3c/0x82 [ 2019.185035][ C0] [] call_fib6_notifiers+0x48/0x62 [ 2019.185368][ C0] [] fib6_add+0x21a2/0x4706 [ 2019.185637][ C0] [] ip6_ins_rt+0xbc/0x116 [ 2019.185877][ C0] [] __ipv6_ifa_notify+0x904/0xb2e [ 2019.186149][ C0] [] addrconf_dad_completed+0x14c/0xe38 [ 2019.186448][ C0] [] addrconf_dad_work+0x7d6/0x13ec [ 2019.186759][ C0] [] process_one_work+0x96a/0x1f3a [ 2019.187096][ C0] [] worker_thread+0x5be/0xdc6 [ 2019.187428][ C0] [] kthread+0x37e/0x7b6 [ 2019.187756][ C0] [] ret_from_fork+0xe/0x18 VM DIAGNOSIS: 09:58:36 Registers: info registers vcpu 0 CPU#0 V = 0 pc ffffffff81db2ab8 mhartid 0000000000000000 mstatus 0000000a000001a0 hstatus 0000000200000000 vsstatus 0000000a00000000 mip 0000000000000000 mie 000000000000022a mideleg 0000000000001666 hideleg 0000000000000444 medeleg 0000000000f0b509 hedeleg 000000000000b109 mtvec 00000000800004f0 stvec ffffffff86268630 vstvec 0000000000000000 mepc ffffffff809cc0bc sepc ffffffff809cc0bc vsepc 0000000000000000 mcause 8000000000000003 scause 8000000000000005 vscause 0000000000000000 mtval 0000000000000000 stval 0000000000000000 htval 0000000000000000 mtval2 0000000000000000 mscratch 000000008004a000 sscratch 0000000000000000 satp 90183000000b4747 x0/zero 0000000000000000 x1/ra ffffffff81db2a8e x2/sp ffff8f8000007030 x3/gp ffffffff89c1d3c0 x4/tp ffffaf8012ac3480 x5/t0 db2205c046e589c7 x6/t1 fffff1ef00000df0 x7/t2 0000000000000236 x8/s0 ffff8f8000007070 x9/s1 ffffffff90fb9d80 x10/a0 ffffffff90fb9dc8 x11/a1 000000000000001f x12/a2 0000000000000000 x13/a3 ffffffff81db2a8e x14/a4 1ffffffff21f73b9 x15/a5 ffff8f800006d000 x16/a6 0000000000ff0100 x17/a7 0000000000000003 x18/s2 0000000000000066 x19/s3 0000000000000000 x20/s4 0000000000000000 x21/s5 0000000000000000 x22/s6 ffffffff81db2a20 x23/s7 0000000000000000 x24/s8 ffffffff90dda30d x25/s9 0000000000000010 x26/s10 fffffffef21f73bb x27/s11 dfffffff00000000 x28/t3 0000000000000000 x29/t4 fffff1ef00000df0 x30/t5 fffff1ef00000df1 x31/t6 000000000002471c fcsr 0000000000000000 f0/ft0 0000000000000000 f1/ft1 0000000000000000 f2/ft2 0000000000000000 f3/ft3 0000000000000000 f4/ft4 0000000000000000 f5/ft5 0000000000000000 f6/ft6 0000000000000000 f7/ft7 0000000000000000 f8/fs0 0000000000000000 f9/fs1 0000000000000000 f10/fa0 0000000000000000 f11/fa1 0000000000000000 f12/fa2 0000000000000000 f13/fa3 0000000000000000 f14/fa4 0000000000000000 f15/fa5 0000000000000000 f16/fa6 0000000000000000 f17/fa7 0000000000000000 f18/fs2 0000000000000000 f19/fs3 0000000000000000 f20/fs4 0000000000000000 f21/fs5 0000000000000000 f22/fs6 0000000000000000 f23/fs7 0000000000000000 f24/fs8 0000000000000000 f25/fs9 0000000000000000 f26/fs10 0000000000000000 f27/fs11 0000000000000000 f28/ft8 0000000000000000 f29/ft9 0000000000000000 f30/ft10 0000000000000000 f31/ft11 0000000000000000 info registers vcpu 1 CPU#1 V = 0 pc ffffffff809cc0bc mhartid 0000000000000001 mstatus 0000000a000000a2 hstatus 0000000200000000 vsstatus 0000000a00000000 mip 0000000000000000 mie 000000000000022a mideleg 0000000000001666 hideleg 0000000000000444 medeleg 0000000000f0b509 hedeleg 000000000000b109 mtvec 00000000800004f0 stvec ffffffff86268630 vstvec 0000000000000000 mepc ffffffff80088636 sepc ffffffff809cc0bc vsepc 0000000000000000 mcause 0000000000000009 scause 8000000000000005 vscause 0000000000000000 mtval 0000000000000000 stval 0000000000000000 htval 0000000000000000 mtval2 0000000000000000 mscratch 0000000080048000 sscratch 0000000000000000 satp 90183000000b4747 x0/zero 0000000000000000 x1/ra ffffffff809cc0b4 x2/sp ffff8f80000173b0 x3/gp ffffffff89c1d3c0 x4/tp ffffaf8034890000 x5/t0 ffff8f8000017520 x6/t1 fffff5ef036f48bb x7/t2 000000000000001b x8/s0 ffff8f8000017460 x9/s1 ffffaf8011401780 x10/a0 0000000000000000 x11/a1 0000000000000020 x12/a2 0000000000000001 x13/a3 0000000000000000 x14/a4 0000000000ff0100 x15/a5 0000000000000000 x16/a6 ffffffff809cc09e x17/a7 ffffaf801b7a45db x18/s2 0000000000002920 x19/s3 0000000000002920 x20/s4 0000000000000020 x21/s5 ffffffff89c3ab00 x22/s6 ffffffff8193885a x23/s7 ffffffff87d90288 x24/s8 0000000000000000 x25/s9 1ffff5f003a9bea2 x26/s10 1ffff5f003a9beab x27/s11 1ffff1f000002ee0 x28/t3 ffffaf8034890b30 x29/t4 fffff5ef036f48bb x30/t5 fffff5ef036f48bc x31/t6 0000000000000002 fcsr 0000000000000000 f0/ft0 0000000000000000 f1/ft1 0000000000000000 f2/ft2 0000000000000000 f3/ft3 0000000000000000 f4/ft4 0000000000000000 f5/ft5 0000000000000000 f6/ft6 0000000000000000 f7/ft7 0000000000000000 f8/fs0 0000000000000000 f9/fs1 0000000000000000 f10/fa0 0000000000000000 f11/fa1 0000000000000000 f12/fa2 0000000000000000 f13/fa3 0000000000000000 f14/fa4 0000000000000000 f15/fa5 0000000000000000 f16/fa6 0000000000000000 f17/fa7 0000000000000000 f18/fs2 0000000000000000 f19/fs3 0000000000000000 f20/fs4 0000000000000000 f21/fs5 0000000000000000 f22/fs6 0000000000000000 f23/fs7 0000000000000000 f24/fs8 0000000000000000 f25/fs9 0000000000000000 f26/fs10 0000000000000000 f27/fs11 0000000000000000 f28/ft8 0000000000000000 f29/ft9 0000000000000000 f30/ft10 0000000000000000 f31/ft11 0000000000000000