====================================== | [ 42.338234][ T49] br1: port 4(veth2) entered forwarding state | [ 45.991122][ C1] ------------[ cut here ]------------ | [ 45.991504][ C1] kernel BUG at net/core/skbuff.c:3505! | [ 45.991771][ C1] invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 45.992410][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 45.992882][ C1] RIP: 0010:__skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) [ 45.993106][ C1] 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 [ 45.993849][ C1] RSP: 0018:ffffc9000019f740 EFLAGS: 00010202 [ 45.994110][ C1] RAX: 000000000000cd6b RBX: 0000000000000008 RCX: 1ffff11000ff7259 [ 45.994425][ C1] RDX: 00000000000000ce RSI: dffffc0000000000 RDI: ffff888007fb92c8 [ 45.994744][ C1] RBP: 000000000000cd6b R08: 0000000000000008 R09: ffffed1000734989 [ 45.995047][ C1] R10: ffff888008e38288 R11: ffff888007fb9000 R12: 0000000000000008 [ 45.995358][ C1] R13: 0000000000000000 R14: ffffc9000019f800 R15: ffff888008e38288 [ 45.995683][ C1] FS: 0000000000000000(0000) GS:ffff888036080000(0000) knlGS:0000000000000000 [ 45.996084][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.996371][ C1] CR2: 00007f59db777270 CR3: 000000002831e004 CR4: 0000000000770ef0 [ 45.996728][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.997063][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.997389][ C1] PKRU: 55555554 [ 45.997556][ C1] Call Trace: [ 45.997725][ C1] [ 45.997849][ C1] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447) [ 45.998011][ C1] ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154) [ 45.998167][ C1] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) [ 45.998385][ C1] ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175) [ 45.998585][ C1] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) [ 45.998788][ C1] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) [ 45.998998][ C1] ? handle_invalid_op (arch/x86/kernel/traps.c:213) [ 45.999202][ C1] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) [ 45.999410][ C1] ? exc_invalid_op (arch/x86/kernel/traps.c:265) [ 45.999639][ C1] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 45.999874][ C1] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) [ 46.000084][ C1] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 46.000303][ C1] ? 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) [ 46.000513][ C1] __skb_checksum_complete (net/core/skbuff.c:3643) [ 46.000734][ C1] ? __pfx___skb_checksum_complete (net/core/skbuff.c:3637) [ 46.001009][ C1] ? __pfx_csum_partial_ext (./include/net/checksum.h:120) [ 46.001237][ C1] ? __pfx_csum_block_add_ext (./include/net/checksum.h:103) [ 46.001470][ C1] ? ipv6_raw_deliver (net/ipv6/raw.c:142) [ 46.001689][ C1] icmpv6_rcv (./include/linux/skbuff.h:4567 net/ipv6/icmp.c:921) [ 46.001911][ C1] ip6_protocol_deliver_rcu (net/ipv6/ip6_input.c:438 (discriminator 5)) [ 46.002144][ C1] ip6_input_finish (./include/linux/rcupdate.h:779 net/ipv6/ip6_input.c:484) [ 46.002357][ C1] ip6_input (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv6/ip6_input.c:492) [ 46.002520][ C1] ? __pfx_ip6_input (net/ipv6/ip6_input.c:491) [ 46.002733][ C1] ? ip6_rcv_core (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:783 net/ipv6/ip6_input.c:287) [ 46.002959][ C1] ? ip6_rcv_core (./include/net/sock.h:2827 net/ipv6/ip6_input.c:290) [ 46.003180][ C1] 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) [ 46.003354][ C1] ? __pfx_ipv6_rcv (net/ipv6/ip6_input.c:304) [ 46.003576][ C1] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 46.003799][ C1] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051) [ 46.004028][ C1] ? __pfx_ipv6_rcv (net/ipv6/ip6_input.c:304) [ 46.004242][ C1] __netif_receive_skb_one_core (net/core/dev.c:5603) [ 46.004518][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5603) [ 46.004789][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 46.005016][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 46.005226][ C1] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051) [ 46.005452][ C1] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:6053) [ 46.005674][ C1] ? __lock_release (kernel/locking/lockdep.c:5430) [ 46.005902][ C1] __napi_poll.constprop.0 (net/core/dev.c:6703) [ 46.006120][ C1] net_rx_action (net/core/dev.c:6772 net/core/dev.c:6886) [ 46.006345][ C1] ? __pfx_net_rx_action (net/core/dev.c:6850) [ 46.006554][ C1] ? __pfx___schedule (kernel/sched/core.c:6608) [ 46.006793][ C1] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 46.007152][ C1] __do_softirq (kernel/softirq.c:553) [ 46.007381][ C1] ? __pfx_run_ksoftirqd (kernel/softirq.c:914) [ 46.007608][ C1] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) [ 46.007828][ C1] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) [ 46.008191][ C1] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) [ 46.008407][ C1] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) [ 46.008616][ C1] kthread (kernel/kthread.c:388) [ 46.008793][ C1] ? __pfx_kthread (kernel/kthread.c:341) [ 46.009021][ C1] ret_from_fork (arch/x86/kernel/process.c:147) [ 46.009235][ C1] ? __pfx_kthread (kernel/kthread.c:341) Finger prints: __skb_checksum:__skb_checksum_complete:icmpv6_rcv:ip6_protocol_deliver_rcu