====================================== | [ 265.576376][ T1642] 8021q: 802.1Q VLAN Support v1.8 | [ 288.934169][ C2] ------------[ cut here ]------------ | [ 288.934611][ C2] kernel BUG at net/core/skbuff.c:3505! | [ 288.934801][ C2] invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 288.935219][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 288.935530][ C2] RIP: 0010:__skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) [ 288.935696][ C2] Code: 44 89 14 24 ff d0 0f 1f 00 4c 8b 44 24 08 44 8b 14 24 41 89 c1 eb a5 89 e8 e9 2d fe ff ff 41 ff d5 0f 1f 00 e9 1f fa ff ff 90 <0f> 0b 48 8b 7c 24 10 89 54 24 48 48 89 44 24 40 e8 17 a6 91 fe 8b All code ======== 0: 44 89 14 24 mov %r10d,(%rsp) 4: ff d0 call *%rax 6: 0f 1f 00 nopl (%rax) 9: 4c 8b 44 24 08 mov 0x8(%rsp),%r8 e: 44 8b 14 24 mov (%rsp),%r10d 12: 41 89 c1 mov %eax,%r9d 15: eb a5 jmp 0xffffffffffffffbc 17: 89 e8 mov %ebp,%eax 19: e9 2d fe ff ff jmp 0xfffffffffffffe4b 1e: 41 ff d5 call *%r13 21: 0f 1f 00 nopl (%rax) 24: e9 1f fa ff ff jmp 0xfffffffffffffa48 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 48 8b 7c 24 10 mov 0x10(%rsp),%rdi 31: 89 54 24 48 mov %edx,0x48(%rsp) 35: 48 89 44 24 40 mov %rax,0x40(%rsp) 3a: e8 17 a6 91 fe call 0xfffffffffe91a656 3f: 8b .byte 0x8b Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 48 8b 7c 24 10 mov 0x10(%rsp),%rdi 7: 89 54 24 48 mov %edx,0x48(%rsp) b: 48 89 44 24 40 mov %rax,0x40(%rsp) 10: e8 17 a6 91 fe call 0xfffffffffe91a62c 15: 8b .byte 0x8b [ 288.936210][ C2] RSP: 0018:ffffc900001f7740 EFLAGS: 00010202 [ 288.936398][ C2] RAX: 000000000000e831 RBX: 0000000000000008 RCX: 1ffff110012df259 [ 288.936621][ C2] RDX: 0000000000000070 RSI: dffffc0000000000 RDI: ffff8880096f92c8 [ 288.936832][ C2] RBP: 000000000000e831 R08: 0000000000000008 R09: ffffed10004475e9 [ 288.937034][ C2] R10: ffff88800372f5c8 R11: ffff8880096f9000 R12: 0000000000000008 [ 288.937238][ C2] R13: 0000000000000000 R14: ffffc900001f7800 R15: ffff88800372f5c8 [ 288.937445][ C2] FS: 0000000000000000(0000) GS:ffff888036100000(0000) knlGS:0000000000000000 [ 288.937706][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 288.937881][ C2] CR2: 00000000004210d0 CR3: 0000000007d7a003 CR4: 0000000000770ef0 [ 288.938093][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 288.938300][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 288.938509][ C2] PKRU: 55555554 [ 288.938618][ C2] Call Trace: [ 288.938721][ C2] [ 288.938794][ C2] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447) [ 288.938906][ C2] ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154) [ 288.939013][ C2] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) [ 288.939151][ C2] ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175) [ 288.939293][ C2] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) [ 288.939428][ C2] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) [ 288.939571][ C2] ? handle_invalid_op (arch/x86/kernel/traps.c:213) [ 288.939708][ C2] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) [ 288.939895][ C2] ? exc_invalid_op (arch/x86/kernel/traps.c:265) [ 288.940031][ C2] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 288.940176][ C2] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) [ 288.940323][ C2] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 288.940468][ C2] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 288.940612][ C2] __skb_checksum_complete (net/core/skbuff.c:3643) [ 288.940757][ C2] ? __pfx___skb_checksum_complete (net/core/skbuff.c:3637) [ 288.940933][ C2] ? __pfx_csum_partial_ext (./include/net/checksum.h:120) [ 288.941079][ C2] ? __pfx_csum_block_add_ext (./include/net/checksum.h:103) [ 288.941269][ C2] ? ipv6_raw_deliver (net/ipv6/raw.c:142) [ 288.941453][ C2] icmpv6_rcv (./include/linux/skbuff.h:4567 net/ipv6/icmp.c:921) [ 288.941604][ C2] ip6_protocol_deliver_rcu (net/ipv6/ip6_input.c:438 (discriminator 5)) [ 288.941742][ C2] ip6_input_finish (./include/linux/rcupdate.h:779 net/ipv6/ip6_input.c:484) [ 288.941880][ C2] ip6_input (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv6/ip6_input.c:492) [ 288.941980][ C2] ? __pfx_ip6_input (net/ipv6/ip6_input.c:491) [ 288.942121][ C2] ? ip6_rcv_core (./include/net/sock.h:2827 net/ipv6/ip6_input.c:290) [ 288.942273][ C2] ipv6_rcv (./include/net/dst.h:460 net/ipv6/ip6_input.c:79 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv6/ip6_input.c:310) [ 288.942372][ C2] ? __pfx_ipv6_rcv (net/ipv6/ip6_input.c:304) [ 288.942509][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 288.942654][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051) [ 288.942790][ C2] ? __pfx_ipv6_rcv (net/ipv6/ip6_input.c:304) [ 288.942922][ C2] __netif_receive_skb_one_core (net/core/dev.c:5603) [ 288.943093][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5603) [ 288.943263][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 288.943403][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 288.943563][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051) [ 288.943749][ C2] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:6053) [ 288.943912][ C2] __napi_poll.constprop.0 (net/core/dev.c:6703) [ 288.944051][ C2] net_rx_action (net/core/dev.c:6772 net/core/dev.c:6886) [ 288.944184][ C2] ? __pfx_net_rx_action (net/core/dev.c:6850) [ 288.944319][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) [ 288.944576][ C2] ? __pfx_try_to_wake_up (kernel/sched/core.c:4223) [ 288.944723][ C2] ? trace_rcu_grace_period (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:505 ./include/linux/cpumask.h:1120 ./include/trace/events/rcu.h:69) [ 288.944866][ C2] __do_softirq (kernel/softirq.c:553) [ 288.945013][ C2] ? __pfx_run_ksoftirqd (kernel/softirq.c:914) [ 288.945158][ C2] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) [ 288.945413][ C2] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) [ 288.945549][ C2] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) [ 288.945697][ C2] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) [ 288.945830][ C2] kthread (kernel/kthread.c:388) [ 288.945939][ C2] ? __pfx_kthread (kernel/kthread.c:341) [ 288.946165][ C2] ret_from_fork (arch/x86/kernel/process.c:147) [ 288.946300][ C2] ? __pfx_kthread (kernel/kthread.c:341) Finger prints: __skb_checksum:__skb_checksum_complete:icmpv6_rcv:ip6_protocol_deliver_rcu