====================================== | [ 20.719739][ T325] ip_gre: GRE over IPv4 tunneling driver | [ 20.788080][ T324] ------------[ cut here ]------------ | [ 20.788735][ T324] WARNING: CPU: 0 PID: 324 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) | [ 20.789496][ T324] Modules linked in: ip_gre gre vrf veth [ 20.790702][ T324] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.791441][ T324] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) [ 20.791998][ T324] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 All code ======== 0: 00 00 add %al,(%rax) 2: 8b 05 b7 bb 3a 02 mov 0x23abbb7(%rip),%eax # 0x23abbbf 8: 85 c0 test %eax,%eax a: 0f 84 52 fe ff ff je 0xfffffffffffffe62 10: 48 8d bb a0 0c 00 00 lea 0xca0(%rbx),%rdi 17: be ff ff ff ff mov $0xffffffff,%esi 1c: e8 fa 61 7b 00 call 0x7b621b 21: 85 c0 test %eax,%eax 23: 0f 85 39 fe ff ff jne 0xfffffffffffffe62 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: e9 30 fe ff ff jmp 0xfffffffffffffe62 32: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 39: fc ff df 3c: 4c 89 fa mov %r15,%rdx 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: e9 30 fe ff ff jmp 0xfffffffffffffe38 8: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax f: fc ff df 12: 4c 89 fa mov %r15,%rdx 15: 48 rex.W [ 20.793429][ T324] RSP: 0018:ffffc90000617000 EFLAGS: 00010246 [ 20.794036][ T324] RAX: 0000000000000000 RBX: ffff888012e09000 RCX: 0000000000000001 [ 20.794807][ T324] RDX: 0000000000000000 RSI: ffffffff8949b939 RDI: ffffffff88c555e0 [ 20.795570][ T324] RBP: ffffc900006170e8 R08: ffff888012e09218 R09: 0000000000000000 [ 20.796144][ T324] R10: ffffc90000617118 R11: ffffffff89979160 R12: 1ffff920000c2e04 [ 20.796716][ T324] R13: 000000000000ffe7 R14: ffffc90000617118 R15: ffff888012e09218 [ 20.797310][ T324] FS: 00007f7e981e1800(0000) GS:ffff8880aacb7000(0000) knlGS:0000000000000000 [ 20.798347][ T324] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.798860][ T324] CR2: 00007fc78e5cea50 CR3: 000000001498f001 CR4: 0000000000772ef0 [ 20.799667][ T324] PKRU: 55555554 [ 20.799917][ T324] Call Trace: [ 20.800162][ T324] [ 20.800784][ T324] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) [ 20.801365][ T324] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) [ 20.801903][ T324] ? find_held_lock (kernel/locking/lockdep.c:5353) [ 20.802462][ T324] netif_set_mtu (net/core/dev.c:9652) [ 20.802992][ T324] ? __pfx_netif_set_mtu (net/core/dev.c:9647) [ 20.803556][ T324] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) [ 20.803964][ T324] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) [ 20.804934][ T324] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) [ 20.805529][ T324] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre [ 20.806081][ T324] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre [ 20.820600][ T324] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) [ 20.821219][ T324] ? rtnl_create_link (net/core/rtnetlink.c:3642) [ 20.821791][ T324] rtnl_newlink_create (net/core/rtnetlink.c:3828) [ 20.823206][ T324] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) [ 20.823764][ T324] ? __dev_get_by_name (net/core/dev.c:865) [ 20.824342][ T324] ? rtnl_dev_get (net/core/rtnetlink.c:3404) [ 20.825346][ T324] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) [ 20.825925][ T324] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) [ 20.826483][ T324] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) [ 20.827029][ T324] __rtnl_newlink (net/core/rtnetlink.c:3942) [ 20.827594][ T324] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) [ 20.828984][ T324] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) [ 20.829670][ T324] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) [ 20.830241][ T324] ? __lock_release (kernel/locking/lockdep.c:5539) [ 20.830800][ T324] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) [ 20.831384][ T324] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) [ 20.831937][ T324] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) [ 20.832534][ T324] ? __lock_acquire (kernel/locking/lockdep.c:5240) [ 20.833126][ T324] netlink_rcv_skb (net/netlink/af_netlink.c:2551) [ 20.833690][ T324] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) [ 20.834255][ T324] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) [ 20.834830][ T324] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) [ 20.835435][ T324] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 20.835996][ T324] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) [ 20.836579][ T324] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) [ 20.837141][ T324] ? __lock_acquire (kernel/locking/lockdep.c:5240) [ 20.837702][ T324] netlink_sendmsg (net/netlink/af_netlink.c:1896) [ 20.838287][ T324] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) [ 20.838962][ T324] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) [ 20.839300][ T324] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) [ 20.839615][ T324] ? __pfx_____sys_sendmsg (net/socket.c:2560) [ 20.840016][ T324] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) [ 20.840612][ T324] ___sys_sendmsg (net/socket.c:2670) [ 20.840942][ T324] ? kasan_record_aux_stack (mm/kasan/generic.c:548) [ 20.841271][ T324] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) [ 20.841661][ T324] ? __pfx____sys_sendmsg (net/socket.c:2657) [ 20.841994][ T324] ? find_held_lock (kernel/locking/lockdep.c:5353) [ 20.842320][ T324] ? __lock_acquire (kernel/locking/lockdep.c:5240) [ 20.843126][ T324] ? find_held_lock (kernel/locking/lockdep.c:5353) [ 20.843507][ T324] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) [ 20.843826][ T324] ? __lock_release (kernel/locking/lockdep.c:5539) [ 20.844233][ T324] __sys_sendmsg (net/socket.c:2700) [ 20.845603][ T324] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) [ 20.846203][ T324] ? __pfx___sys_sendmsg (net/socket.c:2685) [ 20.846586][ T324] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) [ 20.847262][ T324] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 20.847649][ T324] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 20.848421][ T324] RIP: 0033:0x7f7e983ae1e7 [ 20.848836][ T324] Code: Unable to access opcode bytes at 0x7f7e983ae1bd. Code starting with the faulting instruction =========================================== [ 20.849715][ T324] RSP: 002b:00007ffdc703aad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 20.850285][ T324] RAX: ffffffffffffffda RBX: 00007ffdc703b200 RCX: 00007f7e983ae1e7 [ 20.851132][ T324] RDX: 0000000000000000 RSI: 00007ffdc703ab40 RDI: 0000000000000005 [ 20.851792][ T324] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000078 [ 20.852431][ T324] R10: 00007f7e982abee8 R11: 0000000000000246 R12: 00007ffdc703b220 [ 20.853131][ T324] R13: 00000000686e6e39 R14: 0000000000499600 R15: 00007ffdc703ac24 | [ 28.381031][ T398] ------------[ cut here ]------------ | [ 28.381386][ T398] WARNING: CPU: 0 PID: 398 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) | [ 28.382007][ T398] Modules linked in: act_gact cls_flower sch_ingress 8021q ip_gre gre vrf veth | [ 28.383200][ T398] Tainted: [W]=WARN [ 28.383439][ T398] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.383822][ T398] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) [ 28.384152][ T398] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 All code ======== 0: 00 00 add %al,(%rax) 2: 8b 05 b7 bb 3a 02 mov 0x23abbb7(%rip),%eax # 0x23abbbf 8: 85 c0 test %eax,%eax a: 0f 84 52 fe ff ff je 0xfffffffffffffe62 10: 48 8d bb a0 0c 00 00 lea 0xca0(%rbx),%rdi 17: be ff ff ff ff mov $0xffffffff,%esi 1c: e8 fa 61 7b 00 call 0x7b621b 21: 85 c0 test %eax,%eax 23: 0f 85 39 fe ff ff jne 0xfffffffffffffe62 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: e9 30 fe ff ff jmp 0xfffffffffffffe62 32: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 39: fc ff df 3c: 4c 89 fa mov %r15,%rdx 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: e9 30 fe ff ff jmp 0xfffffffffffffe38 8: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax f: fc ff df 12: 4c 89 fa mov %r15,%rdx 15: 48 rex.W [ 28.385273][ T398] RSP: 0018:ffffc90000607000 EFLAGS: 00010246 [ 28.385677][ T398] RAX: 0000000000000000 RBX: ffff888006144000 RCX: 0000000000000001 [ 28.386159][ T398] RDX: 0000000000000000 RSI: ffffffff8949b939 RDI: ffffffff88c555e0 [ 28.386629][ T398] RBP: ffffc900006070e8 R08: ffff888006144218 R09: 0000000000000000 [ 28.387094][ T398] R10: ffffc90000607118 R11: ffffffff89979160 R12: 1ffff920000c0e04 [ 28.387578][ T398] R13: 000000000000ffe7 R14: ffffc90000607118 R15: ffff888006144218 [ 28.388050][ T398] FS: 00007f2da7448800(0000) GS:ffff8880aacb7000(0000) knlGS:0000000000000000 [ 28.388596][ T398] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.388984][ T398] CR2: 00000000004e7408 CR3: 0000000015bdc003 CR4: 0000000000772ef0 [ 28.389458][ T398] PKRU: 55555554 [ 28.389695][ T398] Call Trace: [ 28.389932][ T398] [ 28.390093][ T398] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) [ 28.390490][ T398] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) [ 28.390800][ T398] ? find_held_lock (kernel/locking/lockdep.c:5353) [ 28.391160][ T398] netif_set_mtu (net/core/dev.c:9652) [ 28.391487][ T398] ? __pfx_netif_set_mtu (net/core/dev.c:9647) [ 28.391828][ T398] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) [ 28.392076][ T398] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) [ 28.392421][ T398] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) [ 28.392757][ T398] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre [ 28.393087][ T398] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre [ 28.393497][ T398] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) [ 28.393824][ T398] ? rtnl_create_link (net/core/rtnetlink.c:3642) [ 28.394166][ T398] rtnl_newlink_create (net/core/rtnetlink.c:3828) [ 28.394487][ T398] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) [ 28.394805][ T398] ? __dev_get_by_name (net/core/dev.c:865) [ 28.395135][ T398] ? rtnl_dev_get (net/core/rtnetlink.c:3404) [ 28.395444][ T398] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) [ 28.395758][ T398] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) [ 28.396064][ T398] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) [ 28.396387][ T398] __rtnl_newlink (net/core/rtnetlink.c:3942) [ 28.396721][ T398] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) [ 28.397047][ T398] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) [ 28.397376][ T398] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) [ 28.397697][ T398] ? __lock_release (kernel/locking/lockdep.c:5539) [ 28.398025][ T398] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) [ 28.398350][ T398] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) [ 28.398666][ T398] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) [ 28.398983][ T398] ? __lock_acquire (kernel/locking/lockdep.c:5240) [ 28.399323][ T398] netlink_rcv_skb (net/netlink/af_netlink.c:2551) [ 28.399644][ T398] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) [ 28.399956][ T398] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) [ 28.400283][ T398] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) [ 28.400588][ T398] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 28.400923][ T398] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) [ 28.401248][ T398] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) [ 28.401563][ T398] ? __lock_acquire (kernel/locking/lockdep.c:5240) [ 28.401938][ T398] netlink_sendmsg (net/netlink/af_netlink.c:1896) [ 28.402268][ T398] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) [ 28.402580][ T398] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) [ 28.402908][ T398] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) [ 28.403226][ T398] ? __pfx_____sys_sendmsg (net/socket.c:2560) [ 28.403529][ T398] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) [ 28.403934][ T398] ___sys_sendmsg (net/socket.c:2670) [ 28.404249][ T398] ? kasan_record_aux_stack (mm/kasan/generic.c:548) [ 28.404554][ T398] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) [ 28.404951][ T398] ? __pfx____sys_sendmsg (net/socket.c:2657) [ 28.405283][ T398] ? find_held_lock (kernel/locking/lockdep.c:5353) [ 28.405594][ T398] ? __lock_acquire (kernel/locking/lockdep.c:5240) [ 28.405925][ T398] ? find_held_lock (kernel/locking/lockdep.c:5353) [ 28.406247][ T398] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) [ 28.406561][ T398] ? __lock_release (kernel/locking/lockdep.c:5539) [ 28.406888][ T398] __sys_sendmsg (net/socket.c:2700) [ 28.407211][ T398] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) [ 28.407602][ T398] ? __pfx___sys_sendmsg (net/socket.c:2685) [ 28.407923][ T398] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) [ 28.408244][ T398] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 28.408562][ T398] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 28.408952][ T398] RIP: 0033:0x7f2da76151e7 [ 28.409286][ T398] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 All code ======== 0: 0e (bad) 1: 00 f7 add %dh,%bh 3: d8 64 89 02 fsubs 0x2(%rcx,%rcx,4) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b9 jmp 0xffffffffffffffc9 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 2e 00 00 00 mov $0x2e,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 89 54 24 1c mov %edx,0x1c(%rsp) 3b: 48 89 74 24 10 mov %rsi,0x10(%rsp) Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 89 54 24 1c mov %edx,0x1c(%rsp) 11: 48 89 74 24 10 mov %rsi,0x10(%rsp) [ 28.410417][ T398] RSP: 002b:00007ffcde61cc98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 28.410903][ T398] RAX: ffffffffffffffda RBX: 00007ffcde61d3c0 RCX: 00007f2da76151e7 [ 28.411374][ T398] RDX: 0000000000000000 RSI: 00007ffcde61cd00 RDI: 0000000000000005 [ 28.411854][ T398] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000078 [ 28.412336][ T398] R10: 00007f2da7512ee8 R11: 0000000000000246 R12: 00007ffcde61d3e0 Finger prints: netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:ip_tunnel_newlink:ipgre_newlink