[ovs-discuss] Linux Kernel crashes when insmod openvswitch.ko

a***** albertxie_0304 at 163.com
Wed Mar 18 07:42:01 UTC 2020


Hi all,


insmod openvswitch.ko ( version: 2.7.8,  2.8.7,  2.9.5) , kernel crash ( Unable to handle kernel NULL pointer dereference at virtual address 00000124 )


root at Albert:/# uname -a
Linux Albert 3.14.77 #1 SMP PREEMPT Wed Mar 18 15:01:16 CST 2020 armv7l GNU/Linux


2.9.5:


[42875.527001] openvswitch: Open vSwitch switching datapath 2.9.5
[42875.532199] openvswitch: LISP tunneling driver
[42875.536316] openvswitch: GRE over IPv4 tunneling driver
[42875.541460] openvswitch: Geneve tunneling driver
[42875.546151] openvswitch: VxLAN tunneling driver
[42875.550568] openvswitch: STT tunneling driver
[42875.554954] netlink: Failed to set connlabel length
[42875.560051] Unable to handle kernel NULL pointer dereference at virtual address 00000124
[42875.567961] pgd = c88c4000
[42875.570844] [00000124] *pgd=8c768831, *pte=00000000, *ppte=00000000
[42875.576779] Internal error: Oops: 17 [#1] PREEMPT SMP ARM
[42875.582153] Modules linked in: openvswitch(+) smart_antenna(P) ath_pktlog(P) qca_ol umac mtdoops ath_spectral(P) ath_dfs(P) qdf asf(P) pppoe iptable_nat xt_time xt_tcpudp xt_tcpmss xt_string xt_statistic xt_state xt_recent xt_quota xt_pkttype xt_physdev xt_owner xt_n]
[42875.735630] CPU: 2 PID: 17595 Comm: insmod Tainted: P             3.14.77 #1
[42875.742660] task: ccce3f00 ti: cae8a000 task.ti: cae8a000
[42875.748101] PC is at ovs_netdev_detach_dev+0x2c/0x70 [openvswitch]
[42875.754228] LR is at ovs_netdev_detach_dev+0xc/0x70 [openvswitch]
[42875.760283] pc : [<bf53fc48>]    lr : [<bf53fc28>]    psr: 20000013
[42875.760283] sp : cae8bda0  ip : bf536f04  fp : bf558a18
[42875.771736] r10: c07e43c8  r9 : c0831084  r8 : 00000000
[42875.776945] r7 : c083096c  r6 : c0830900  r5 : 00000006  r4 : ca3a3a80
[42875.783455] r3 : 00000000  r2 : cae8bdc4  r1 : 00000006  r0 : 00000001
[42875.789969] Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
[42875.797088] Control: 10c5387d  Table: 888c406a  DAC: 00000015
[42875.802810] 
[42875.802810] SP: 0xcae8bd20:
[42875.807063] bd20  00000000 00000000 00000001 00000002 00000000 c88d4080 00000001 00000002
[42875.815220] bd40  c0830900 bf53fc48 20000013 ffffffff cae8bd8c c0209518 00000001 00000006
[42875.823382] bd60  cae8bdc4 00000000 ca3a3a80 00000006 c0830900 c083096c 00000000 c0831084
[42875.831541] bd80  c07e43c8 bf558a18 bf536f04 cae8bda0 bf53fc28 bf53fc48 20000013 ffffffff
[42875.839700] bda0  00008000 cca18000 00000006 bf536f3c cae8bdc4 cca18000 bf558268 c055308c
[42875.847861] bdc0  bf558268 cca18000 cca18000 c05544f8 00000001 ffffffef 00000000 00000000
[42875.856020] bde0  bf55182c bf55182c cae8a008 bf0ae09c cae8bf54 cbc26800 bf0ae000 cbc26b98
[42875.864179] be00  00000000 c0212f38 00000000 bf558a54 c88155c0 cae8a000 00000000 00000001
[42875.872342] 
[42875.872342] R2: 0xcae8bd44:
[42875.876593] bd44  bf53fc48 20000013 ffffffff cae8bd8c c0209518 00000001 00000006 cae8bdc4
[42875.884753] bd64  00000000 ca3a3a80 00000006 c0830900 c083096c 00000000 c0831084 c07e43c8
[42875.892913] bd84  bf558a18 bf536f04 cae8bda0 bf53fc28 bf53fc48 20000013 ffffffff 00008000
[42875.901071] bda4  cca18000 00000006 bf536f3c cae8bdc4 cca18000 bf558268 c055308c bf558268
[42875.909231] bdc4  cca18000 cca18000 c05544f8 00000001 ffffffef 00000000 00000000 bf55182c
[42875.917392] bde4  bf55182c cae8a008 bf0ae09c cae8bf54 cbc26800 bf0ae000 cbc26b98 00000000
[42875.925551] be04  c0212f38 00000000 bf558a54 c88155c0 cae8a000 00000000 00000001 00000001
[42875.933710] be24  8040003f c086170c cfef0ca4 00000000 80000000 cfdba000 00000000 c8a10400
[42875.941873] 
[42875.941873] R4: 0xca3a3a00:
[42875.946124] 3a00  cc878300 00000000 00000000 ca3a3a0c ca3a3a0c ffffffff ccb24780 00000027
[42875.954284] 3a20  00000001 ccc51690 ccc51690 ccaa1300 ca3a3930 ccb24814 00000000 0000001f
[42875.962444] 3a40  10000019 00000000 00000004 00000000 00000000 00000000 00000000 c07f5474
[42875.970603] 3a60  c07f54b4 c07f5d20 00000000 c024c818 00000000 00000000 00000000 00000000
[42875.978762] 3a80  00000000 00000000 ccb05f80 ffffeff7 00000002 00000000 cf02e838 00000000
[42875.986922] 3aa0  ca54e008 c075e24c ef831fe8 61e761e7 00000000 00000000 00000000 00000000
[42875.995083] 3ac0  00000000 00000000 00000000 00000000 00000000 00000000 cca18000 00000000
[42876.003242] 3ae0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[42876.011404] 
[42876.011404] R6: 0xc0830880:
[42876.015656] 0880  c0546418 00000000 00000000 00000000 00000001 00000000 c0830898 c0830898
[42876.023816] 08a0  00000000 00000000 c0832098 c08321e4 c0546114 c054610c 00000000 00000000
[42876.031974] 08c0  00000000 bfbbc5a8 c0832090 00000080 c083586c c07f888c c05513c0 c05513b8
[42876.040135] 08e0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[42876.048294] 0900  00000002 0000008d 00030003 c0831084 c0831084 00000000 00000000 cae8bdc0
[42876.056453] 0920  cae8bdc0 c07f54b4 f0000d24 cf123200 cf123280 c0612e5c c07f880c 00000000
[42876.064614] 0940  00000001 00000002 00000000 c07f880c c0835888 c0830934 00000000 00000000
[42876.072774] 0960  cf073e6c cf00f000 cf159c00 cf01b830 ccdfd030 cf159400 cf159800 00000014
[42876.080936] 
[42876.080936] R7: 0xc08308ec:
[42876.085186] 08ec  00000000 00000000 00000000 00000000 00000000 00000002 0000008d 00030003
[42876.093347] 090c  c0831084 c0831084 00000000 00000000 cae8bdc0 cae8bdc0 c07f54b4 f0000d24
[42876.101507] 092c  cf123200 cf123280 c0612e5c c07f880c 00000000 00000001 00000002 00000000
[42876.109665] 094c  c07f880c c0835888 c0830934 00000000 00000000 cf073e6c cf00f000 cf159c00
[42876.117825] 096c  cf01b830 ccdfd030 cf159400 cf159800 00000014 00000011 00000000 cf1c1c84
[42876.125985] 098c  cf556904 cf01b800 cf1c4700 00000080 c07de000 c07df750 c07df790 c07df8b8
[42876.134144] 09ac  c07dfa3c c07dfa5c c07dfa7c cf01e000 cf556700 ef82fe00 ef82fe20 ef82fe40
[42876.142305] 09cc  ef82fbe8 cf01f800 00000001 00000000 c08309dc c08309dc 00000000 00000000
[42876.150467] 
[42876.150467] R9: 0xc0831004:
[42876.154719] 1004  00000000 00000000 00000000 cd200e98 cc859560 ef83184c 00000000 00001770
[42876.162877] 1024  00400000 00300000 00000000 00000000 00000000 00000000 00000000 00000000
[42876.171037] 1044  00000000 c0831048 c0831048 00000000 fdd8fdd8 ca361700 00000000 00000003
[42876.179198] 1064  00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000000f
[42876.187357] 1084  c083090c c083090c c083108c c083108c ffffffe0 c0831098 c0831098 c0551954
[42876.195515] 10a4  00000001 00000000 c08310ac c08310ac 00000000 00000000 c0817704 c07f888c
[42876.203679] 10c4  bf558118 00000000 00000000 00000001 00000000 c08310d8 c08310d8 00000000
[42876.211836] 10e4  00000000 c0750837 c0830998 00000004 000001a4 00000000 c0235a70 00000000
[42876.219999] 
[42876.219999] R10: 0xc07e4348:
[42876.224336] 4348  c41ad32f 0ec67274 cfcdd6f2 051177a9 5b749545 91a8341e 6e7e1c4c a4a2bd17
[42876.232495] 4368  fac75ffb 301bfea0 f1105a26 3bccfb7d 65a91991 af75b8ca 9b044835 51d8e96e
[42876.240654] 4388  0fbd0b82 c561aad9 046a0e5f ceb6af04 90d34de8 5a0fecb3 a5d9c4e1 6f0565ba
[42876.248814] 43a8  31608756 fbbc260d 3ab7828b f06b23d0 ae0ec13c 64d26067 00000100 00000001
[42876.256975] 43c8  bd943663 00000009 003fb0d7 c0209e24 c0209e5c 90f00000 c0225cb0 c0225c74
[42876.265134] 43e8  00000012 ffffffff 00010000 00000000 0000000f 0000000f 0000000f 0000000f
[42876.273294] 4408  00000000 00000000 cf073600 cf0736c0 cf073780 cf074100 cf073840 cf073900
[42876.281455] 4428  cf0739c0 00000001 00000000 00000001 00000001 00000000 00000028 00989680
[42876.289619] Process insmod (pid: 17595, stack limit = 0xcae8a238)
[42876.295695] Stack: (0xcae8bda0 to 0xcae8c000)
[42876.300044] bda0: 00008000 cca18000 00000006 bf536f3c cae8bdc4 cca18000 bf558268 c055308c
[42876.308205] bdc0: bf558268 cca18000 cca18000 c05544f8 00000001 ffffffef 00000000 00000000
[42876.316362] bde0: bf55182c bf55182c cae8a008 bf0ae09c cae8bf54 cbc26800 bf0ae000 cbc26b98
[42876.324522] be00: 00000000 c0212f38 00000000 bf558a54 c88155c0 cae8a000 00000000 00000001
[42876.332681] be20: 00000001 8040003f c086170c cfef0ca4 00000000 80000000 cfdba000 00000000
[42876.340843] be40: c8a10400 0000005a 8040003f c88155c0 00000038 d22a5000 c07f717c bd943663
[42876.349001] be60: cae8bf54 cae8bf54 cbc26800 bf558a0c cbc26b98 bf558a54 00000000 00000030
[42876.357162] be80: bf558a18 c0280cf8 bf558a18 00007fff c027e200 d4597dc7 b58f6ce4 c027e374
[42876.365322] bea0: 00000000 cae8a008 bf558b4c 000002ae 00000000 d22ce8c8 cae8bed4 01300018
[42876.373480] bec0: 27d6c288 0c91af18 bf551528 00000006 bf551558 00000034 00000000 00000000
[42876.381637] bee0: 6e72656b 00006c65 00000000 00000000 00000000 00000000 00000000 00000000
[42876.389796] bf00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bd943663
[42876.397959] bf20: 45215428 01300018 0003728c 01300058 00000080 c0208e04 cae8a000 00000000
[42876.406120] bf40: be99bc74 c0281314 00000000 00000000 be99bc74 d22a5000 0003728c d22ce198
[42876.414280] bf60: d22cdfb3 d22d13f8 0002cdcc 0002e2dc bf558448 00000021 00000000 00005db0
[42876.422436] bf80: 0000002e 0000002f 00000026 00000000 00000019 00000020 be99bf5d 00001f0e
[42876.430597] bfa0: 00000000 c0208c80 be99bf5d 00001f0e 01300058 0003728c 01300018 01300018
[42876.438757] bfc0: be99bf5d 00001f0e 00000000 00000080 00000000 00000000 b6f29f74 be99bc74
[42876.446919] bfe0: be99bc00 be99bbf0 0000a268 b6e927c0 a0000010 01300058 00000000 00000000
[42876.455242] [<bf53fc48>] (ovs_netdev_detach_dev [openvswitch]) from [<bf536f3c>] (dp_device_event+0x38/0xa0 [openvswitch])
[42876.466133] [<bf536f3c>] (dp_device_event [openvswitch]) from [<c055308c>] (call_netdevice_notifier+0x18/0x20)
[42876.476091] [<c055308c>] (call_netdevice_notifier) from [<c05544f8>] (unregister_netdevice_notifier+0x90/0xb8)
[42876.486090] [<c05544f8>] (unregister_netdevice_notifier) from [<bf0ae09c>] (init_module+0x9c/0x148 [openvswitch])
[42876.496315] Code: e59f0048 eb349920 eb3a3843 e5943000 (e5932124) 
[42876.503781] ---[ end trace 94264f4c27fef0a8 ]---
[42876.515241] Kernel panic - not syncing: Fatal exception
[42876.519461] CPU3: stopping
[42876.522145] CPU: 3 PID: 17596 Comm: uci Tainted: P      D      3.14.77 #1
[42876.528936] [<c021e3a8>] (unwind_backtrace) from [<c021b2a8>] (show_stack+0x10/0x14)
[42876.536647] [<c021b2a8>] (show_stack) from [<c03cddd4>] (dump_stack+0x80/0xa0)
[42876.543850] [<c03cddd4>] (dump_stack) from [<c021d650>] (handle_IPI+0xb8/0x140)
[42876.551138] [<c021d650>] (handle_IPI) from [<c02084fc>] (gic_handle_irq+0x58/0x60)
[42876.558692] [<c02084fc>] (gic_handle_irq) from [<c0209580>] (__irq_svc+0x40/0x70)
[42876.566149] Exception stack(0xc8a07e28 to 0xc8a07e70)
[42876.571190] 7e20:                   cc87b0b0 b6fc8000 8969a75f 00100073 0008969a b6fc8000
[42876.579349] 7e40: 00000000 cc87b0b0 b6fc9000 b6fc9000 cf0d0724 cc85ef04 00000000 c8a07e70
[42876.587505] 7e60: c02aa0e8 c02a9f4c 60000013 ffffffff
[42876.592547] [<c0209580>] (__irq_svc) from [<c02a9f4c>] (vm_normal_page+0x5c/0xc0)
[42876.600014] [<c02a9f4c>] (vm_normal_page) from [<c02aa0e8>] (unmap_single_vma+0x138/0x538)
[42876.608257] [<c02aa0e8>] (unmap_single_vma) from [<c02aae90>] (unmap_vmas+0x44/0x54)
[42876.615984] [<c02aae90>] (unmap_vmas) from [<c02ae3c4>] (unmap_region+0xb4/0x180)
[42876.623449] [<c02ae3c4>] (unmap_region) from [<c02afaf4>] (do_munmap+0x210/0x2a8)
[42876.630913] [<c02afaf4>] (do_munmap) from [<c02afbc8>] (vm_munmap+0x3c/0x50)
[42876.637945] [<c02afbc8>] (vm_munmap) from [<c0208c80>] (ret_fast_syscall+0x0/0x38)
[42876.645490] CPU0: stopping
[42876.648185] CPU: 0 PID: 1634 Comm: logread Tainted: P      D      3.14.77 #1
[42876.655224] [<c021e3a8>] (unwind_backtrace) from [<c021b2a8>] (show_stack+0x10/0x14)
[42876.662944] [<c021b2a8>] (show_stack) from [<c03cddd4>] (dump_stack+0x80/0xa0)
[42876.670152] [<c03cddd4>] (dump_stack) from [<c021d650>] (handle_IPI+0xb8/0x140)
[42876.677440] [<c021d650>] (handle_IPI) from [<c02084fc>] (gic_handle_irq+0x58/0x60)
[42876.684991] [<c02084fc>] (gic_handle_irq) from [<c020973c>] (__irq_usr+0x3c/0x60)
[42876.692448] Exception stack(0xcca37fb0 to 0xcca37ff8)
[42876.697486] 7fa0:                                     002e7740 00000001 00000000 00000000
[42876.705651] 7fc0: 00000000 000000a8 002e62a8 ffffffff 000000ac 00000001 00000000 00000000
[42876.713808] 7fe0: 00000000 bed21878 b6cd1870 b6d0236c 60000010 ffffffff
[42876.720402] CPU1: stopping
[42876.723097] CPU: 1 PID: 0 Comm: swapper/1 Tainted: P      D      3.14.77 #1
[42876.730050] [<c021e3a8>] (unwind_backtrace) from [<c021b2a8>] (show_stack+0x10/0x14)
[42876.737771] [<c021b2a8>] (show_stack) from [<c03cddd4>] (dump_stack+0x80/0xa0)
[42876.744977] [<c03cddd4>] (dump_stack) from [<c021d650>] (handle_IPI+0xb8/0x140)
[42876.752266] [<c021d650>] (handle_IPI) from [<c02084fc>] (gic_handle_irq+0x58/0x60)
[42876.759817] [<c02084fc>] (gic_handle_irq) from [<c0209580>] (__irq_svc+0x40/0x70)
[42876.767274] Exception stack(0xcf0b3fa0 to 0xcf0b3fe8)
[42876.772317] 3fa0: ffffffed 00000000 0f5b9000 00000000 cf0b2000 cf0b2030 10c0387d c08362c8
[42876.780479] 3fc0: 8020406a 410fc075 00000000 00000000 c07f6c60 cf0b3fe8 c0218a20 c0218a24
[42876.788628] 3fe0: 60000013 ffffffff
[42876.792114] [<c0209580>] (__irq_svc) from [<c0218a24>] (arch_cpu_idle+0x30/0x50)
[42876.799496] [<c0218a24>] (arch_cpu_idle) from [<c0267318>] (cpu_startup_entry+0xa4/0x108)
[42876.807701] [<c0267318>] (cpu_startup_entry) from [<802085a4>] (0x802085a4)






2.7.9:


[  295.716023] openvswitch: Open vSwitch switching datapath 2.7.9
[  295.721672] openvswitch: LISP tunneling driver
[  295.725273] openvswitch: GRE over IPv4 tunneling driver
[  295.730591] openvswitch: Geneve tunneling driver
[  295.735102] openvswitch: VxLAN tunneling driver
[  295.739675] openvswitch: STT tunneling driver
[  295.743928] netlink: Failed to set connlabel length
[  295.748935] Unable to handle kernel NULL pointer dereference at virtual address 00000124
[  295.756860] pgd = cbbfc000
[  295.759643] [00000124] *pgd=8cb76831, *pte=00000000, *ppte=00000000
[  295.765800] Internal error: Oops: 17 [#1] PREEMPT SMP ARM
[  295.771173] Modules linked in: openvswitch(+) smart_antenna(P) ath_pktlog(P) qca_ol umac mtdoops ath_spectral(P) ath_dfs(P) qdf asf(P) pppoe iptable_nat xt_time xt_tcpudp xt_tcpmss xt_string xt_statistic xt_state xt_recent xt_quota xt_pkttype xt_physdev xt_owner xt_n]
[  295.923178] CPU: 2 PID: 5591 Comm: insmod Tainted: P             3.14.77 #1
[  295.930119] task: cccab600 ti: c889c000 task.ti: c889c000
[  295.935558] PC is at ovs_netdev_detach_dev+0x2c/0x70 [openvswitch]
[  295.941688] LR is at ovs_netdev_detach_dev+0xc/0x70 [openvswitch]
[  295.947741] pc : [<bf347d10>]    lr : [<bf347cf0>]    psr: 20000013
[  295.947741] sp : c889dda0  ip : bf3404e8  fp : bf35fbfc
[  295.959196] r10: c07e43c8  r9 : c0831084  r8 : 00000000
[  295.964404] r7 : c083096c  r6 : c0830900  r5 : 00000006  r4 : ccac6f00
[  295.970915] r3 : 00000000  r2 : c889ddc4  r1 : 00000006  r0 : 00000001
[  295.977427] Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
[  295.984543] Control: 10c5387d  Table: 8bbfc06a  DAC: 00000015
[  295.990271] 
[  295.990271] SP: 0xc889dd20:
[  295.994523] dd20  00000000 00000000 c083b3c6 00000027 00000000 60000013 00000000 00000000
[  296.002681] dd40  00000000 bf347d10 20000013 ffffffff c889dd8c c0209518 00000001 00000006
[  296.010843] dd60  c889ddc4 00000000 ccac6f00 00000006 c0830900 c083096c 00000000 c0831084
[  296.019000] dd80  c07e43c8 bf35fbfc bf3404e8 c889dda0 bf347cf0 bf347d10 20000013 ffffffff
[  296.027161] dda0  00008000 cb3d6000 00000006 bf340520 c889ddc4 cb3d6000 bf35f468 c055308c
[  296.035320] ddc0  bf35f468 cb3d6000 cb3d6000 c05544f8 00000001 ffffffef 00000000 00000000
[  296.043479] dde0  bf359178 bf359178 c889c008 bf0ae0c0 c889df54 cb242c00 bf0ae000 cb242f98
[  296.051639] de00  00000000 c0212f38 00000000 bf35fc38 cc880ec0 c889c000 00000000 00000001
[  296.059803] 
[  296.059803] R2: 0xc889dd44:
[  296.064052] dd44  bf347d10 20000013 ffffffff c889dd8c c0209518 00000001 00000006 c889ddc4
[  296.072213] dd64  00000000 ccac6f00 00000006 c0830900 c083096c 00000000 c0831084 c07e43c8
[  296.080373] dd84  bf35fbfc bf3404e8 c889dda0 bf347cf0 bf347d10 20000013 ffffffff 00008000
[  296.088531] dda4  cb3d6000 00000006 bf340520 c889ddc4 cb3d6000 bf35f468 c055308c bf35f468
[  296.096692] ddc4  cb3d6000 cb3d6000 c05544f8 00000001 ffffffef 00000000 00000000 bf359178
[  296.104852] dde4  bf359178 c889c008 bf0ae0c0 c889df54 cb242c00 bf0ae000 cb242f98 00000000
[  296.113010] de04  c0212f38 00000000 bf35fc38 cc880ec0 c889c000 00000000 00000001 00000001
[  296.121170] de24  8040003f c086170c cff4b28c 00000000 80000000 cfdba000 00000000 ccc3a700
[  296.129333] 
[  296.129333] R4: 0xccac6e80:
[  296.133585] 6e80  ccac6700 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  296.141743] 6ea0  00000000 00000000 00000000 00000000 ffffffff 0000001f ffffffff 0000001f
[  296.149904] 6ec0  ffffffff 0000001f 00000000 00000000 00000000 00000000 00000000 c07f5474
[  296.158063] 6ee0  c07f54b4 c07f5d20 cc857ae8 c024c818 00000000 00000000 00000000 00000000
[  296.166222] 6f00  00000000 00000000 ca469440 ffffeff5 00000002 00000000 cf02e838 00000000
[  296.174381] 6f20  cc1ea008 c075e24c ef831d20 00810081 00000000 00000000 00000000 00000000
[  296.182541] 6f40  00000000 00000000 00000000 00000000 00000000 00000000 cb3d6000 00000000
[  296.190701] 6f60  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  296.198865] 
[  296.198865] R6: 0xc0830880:
[  296.203116] 0880  c0546418 00000000 00000000 00000000 00000001 00000000 c0830898 c0830898
[  296.211275] 08a0  00000000 00000000 c0832098 c08321e4 c0546114 c054610c 00000000 00000000
[  296.219435] 08c0  00000000 bfbaa5a8 c0832090 00000080 c083586c c07f888c c05513c0 c05513b8
[  296.227593] 08e0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  296.235753] 0900  00000002 0000008f 00030003 c0831084 c0831084 00000000 00000000 c889ddc0
[  296.243913] 0920  c889ddc0 c07f54b4 f0000d24 cf123200 cf123280 c0612e5c c07f880c 00000000
[  296.252073] 0940  00000001 00000002 00000000 c07f880c c0835888 c0830934 00000000 00000000
[  296.260232] 0960  cf073e6c cf00f000 cf159c00 cf01b830 ca59c830 cf159400 cf159800 00000012
[  296.268395] 
[  296.268395] R7: 0xc08308ec:
[  296.272645] 08ec  00000000 00000000 00000000 00000000 00000000 00000002 0000008f 00030003
[  296.280805] 090c  c0831084 c0831084 00000000 00000000 c889ddc0 c889ddc0 c07f54b4 f0000d24
[  296.288965] 092c  cf123200 cf123280 c0612e5c c07f880c 00000000 00000001 00000002 00000000
[  296.297124] 094c  c07f880c c0835888 c0830934 00000000 00000000 cf073e6c cf00f000 cf159c00
[  296.305284] 096c  cf01b830 ca59c830 cf159400 cf159800 00000012 0000000f 00000000 cf1c1c84
[  296.313445] 098c  cf556904 cf01b800 cf1c4700 00000080 c07de000 c07df750 c07df790 c07df8b8
[  296.321605] 09ac  c07dfa3c c07dfa5c c07dfa7c cf01e000 cf556700 ef82fe00 ef82fe20 ef82fe40
[  296.329763] 09cc  ef82fbe8 cf01f800 00000001 00000000 c08309dc c08309dc 00000000 00000000
[  296.337927] 
[  296.337927] R9: 0xc0831004:
[  296.342178] 1004  00000000 00000000 00000000 cc856218 cc2fcd60 ef831584 00000000 00001770
[  296.350338] 1024  00400000 00300000 00000000 00000000 00000000 00000000 00000000 00000000
[  296.358496] 1044  00000000 c0831048 c0831048 00000000 01490149 cf0a8e00 00000000 00000004
[  296.366656] 1064  00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000000d
[  296.374815] 1084  c083090c c083090c c083108c c083108c ffffffe0 c0831098 c0831098 c0551954
[  296.382976] 10a4  00000001 00000000 c08310ac c08310ac 00000000 00000000 c0817704 c07f888c
[  296.391135] 10c4  bf35f318 00000000 00000000 00000001 00000000 c08310d8 c08310d8 00000000
[  296.399295] 10e4  00000000 c0750837 c0830998 00000004 000001a4 00000000 c0235a70 00000000
[  296.407458] 
[  296.407458] R10: 0xc07e4348:
[  296.411795] 4348  c41ad32f 0ec67274 cfcdd6f2 051177a9 5b749545 91a8341e 6e7e1c4c a4a2bd17
[  296.419956] 4368  fac75ffb 301bfea0 f1105a26 3bccfb7d 65a91991 af75b8ca 9b044835 51d8e96e
[  296.428114] 4388  0fbd0b82 c561aad9 046a0e5f ceb6af04 90d34de8 5a0fecb3 a5d9c4e1 6f0565ba
[  296.436273] 43a8  31608756 fbbc260d 3ab7828b f06b23d0 ae0ec13c 64d26067 00000100 00000001
[  296.444435] 43c8  bd943663 00000009 003fb0d7 c0209e24 c0209e5c 90f00000 c0225cb0 c0225c74
[  296.452594] 43e8  00000012 ffffffff 00010000 00000000 0000000f 0000000f 0000000f 0000000f
[  296.460754] 4408  00000000 00000000 cf073600 cf0736c0 cf073780 cf074100 cf073840 cf073900
[  296.468913] 4428  cf0739c0 00000001 00000000 00000001 00000001 00000000 00000028 00989680
[  296.477079] Process insmod (pid: 5591, stack limit = 0xc889c238)
[  296.483068] Stack: (0xc889dda0 to 0xc889e000)
[  296.487417] dda0: 00008000 cb3d6000 00000006 bf340520 c889ddc4 cb3d6000 bf35f468 c055308c
[  296.495574] ddc0: bf35f468 cb3d6000 cb3d6000 c05544f8 00000001 ffffffef 00000000 00000000
[  296.503739] dde0: bf359178 bf359178 c889c008 bf0ae0c0 c889df54 cb242c00 bf0ae000 cb242f98
[  296.511894] de00: 00000000 c0212f38 00000000 bf35fc38 cc880ec0 c889c000 00000000 00000001
[  296.520053] de20: 00000001 8040003f c086170c cff4b28c 00000000 80000000 cfdba000 00000000
[  296.528214] de40: ccc3a700 0000005a 8040003f cc880ec0 00000034 d1cbd000 c07f717c bd943663
[  296.536374] de60: c889df54 c889df54 cb242c00 bf35fbf0 cb242f98 bf35fc38 00000000 00000030
[  296.544535] de80: bf35fbfc c0280cf8 bf35fbfc 00007fff c027e200 757fc4f3 2a145392 c027e374
[  296.552694] dea0: 00000000 c889c008 bf35fd30 00000299 00000000 d1ce3a88 c889ded4 0056d018
[  296.560852] dec0: 3005afb3 07d29034 bf358e94 00000006 bf358ec4 00000032 00000000 00000000
[  296.569012] dee0: 6e72656b 00006c65 00000000 00000000 00000000 00000000 00000000 00000000
[  296.577170] df00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bd943663
[  296.585332] df20: e17f0e24 0056d018 00033bc4 0056d058 00000080 c0208e04 c889c000 00000000
[  296.593490] df40: bedabc74 c0281314 00000000 00000000 bedabc74 d1cbd000 00033bc4 d1ce3358
[  296.601651] df60: d1ce3173 d1ce6468 00029f8c 0002b3cc bf35f648 00000021 00000000 00005ae4
[  296.609809] df80: 0000002e 0000002f 00000026 00000000 00000019 00000020 bedabf5d 00001f0e
[  296.617969] dfa0: 00000000 c0208c80 bedabf5d 00001f0e 0056d058 00033bc4 0056d018 0056d018
[  296.626129] dfc0: bedabf5d 00001f0e 00000000 00000080 00000000 00000000 b6fe9f74 bedabc74
[  296.634288] dfe0: bedabc00 bedabbf0 0000a268 b6f527c0 a0000010 0056d058 00000000 00000000
[  296.642610] [<bf347d10>] (ovs_netdev_detach_dev [openvswitch]) from [<bf340520>] (dp_device_event+0x38/0xa0 [openvswitch])
[  296.653510] [<bf340520>] (dp_device_event [openvswitch]) from [<c055308c>] (call_netdevice_notifier+0x18/0x20)
[  296.663461] [<c055308c>] (call_netdevice_notifier) from [<c05544f8>] (unregister_netdevice_notifier+0x90/0xb8)
[  296.673466] [<c05544f8>] (unregister_netdevice_notifier) from [<bf0ae0c0>] (init_module+0xc0/0x144 [openvswitch])
[  296.683759] [<bf0ae0c0>] (init_module [openvswitch]) from [<c0212f38>] (do_one_initcall+0xc4/0x180)
[  296.692718] [<c0212f38>] (do_one_initcall) from [<c0280cf8>] (load_module+0x1668/0x1c00)
[  296.700786] [<c0280cf8>] (load_module) from [<c0281314>] (SyS_init_module+0x84/0x94)
[  296.708513] [<c0281314>] (SyS_init_module) from [<c0208c80>] (ret_fast_syscall+0x0/0x38)
[  296.716582] Code: e59f0048 eb3c78ee eb421811 e5943000 (e5932124) 
[  296.727162] ---[ end trace 06aff6044f078b0f ]---
[  296.739981] Kernel panic - not syncing: Fatal exception
[  296.744185] CPU1: stopping
[  296.746878] CPU: 1 PID: 1582 Comm: logread Tainted: P      D      3.14.77 #1
[  296.753928] [<c021e3a8>] (unwind_backtrace) from [<c021b2a8>] (show_stack+0x10/0x14)
[  296.761640] [<c021b2a8>] (show_stack) from [<c03cddd4>] (dump_stack+0x80/0xa0)
[  296.768843] [<c03cddd4>] (dump_stack) from [<c021d650>] (handle_IPI+0xb8/0x140)
[  296.776133] [<c021d650>] (handle_IPI) from [<c02084fc>] (gic_handle_irq+0x58/0x60)
[  296.783685] [<c02084fc>] (gic_handle_irq) from [<c0209580>] (__irq_svc+0x40/0x70)
[  296.791141] Exception stack(0xca449db0 to 0xca449df8)
[  296.796180] 9da0:                                     c07de340 0f5b9000 0001b648 0001b648
[  296.804343] 9dc0: cc9c5190 ce894198 cc9ddb80 ce858b28 c0208e04 cac7af00 ca449eac cb639000
[  296.812498] 9de0: a0000013 ca449df8 00000054 c02d81c0 a0000013 ffffffff
[  296.819100] [<c0209580>] (__irq_svc) from [<c02d81c0>] (legitimize_mnt+0x58/0xac)
[  296.826568] [<c02d81c0>] (legitimize_mnt) from [<c02c62f8>] (unlazy_walk+0x40/0x154)
[  296.834294] [<c02c62f8>] (unlazy_walk) from [<c02c9818>] (do_last+0x748/0xb04)
[  296.841498] [<c02c9818>] (do_last) from [<c02c9de4>] (path_openat+0x210/0x5a8)
[  296.848705] [<c02c9de4>] (path_openat) from [<c02cb330>] (do_filp_open+0x2c/0x78)
[  296.856170] [<c02cb330>] (do_filp_open) from [<c02bddec>] (do_sys_open+0x11c/0x1bc)
[  296.863806] [<c02bddec>] (do_sys_open) from [<c0208c80>] (ret_fast_syscall+0x0/0x38)
[  296.871524] CPU2: stopping
[  296.874219] CPU: 2 PID: 0 Comm: swapper/2 Tainted: P      D      3.14.77 #1
[  296.881172] [<c021e3a8>] (unwind_backtrace) from [<c021b2a8>] (show_stack+0x10/0x14)
[  296.888893] [<c021b2a8>] (show_stack) from [<c03cddd4>] (dump_stack+0x80/0xa0)
[  296.896099] [<c03cddd4>] (dump_stack) from [<c021d650>] (handle_IPI+0xb8/0x140)
[  296.903387] [<c021d650>] (handle_IPI) from [<c02084fc>] (gic_handle_irq+0x58/0x60)
[  296.910939] [<c02084fc>] (gic_handle_irq) from [<c0209580>] (__irq_svc+0x40/0x70)
[  296.918395] Exception stack(0xcf0b5fa0 to 0xcf0b5fe8)
[  296.923440] 5fa0: ffffffed 00000000 0f5c1000 00000000 cf0b4000 cf0b4030 10c0387d c08362c8
[  296.931599] 5fc0: 8020406a 410fc075 00000000 00000000 c07f6c60 cf0b5fe8 c0218a20 c0218a24
[  296.939750] 5fe0: 60000013 ffffffff
[  296.943233] [<c0209580>] (__irq_svc) from [<c0218a24>] (arch_cpu_idle+0x30/0x50)
[  296.950618] [<c0218a24>] (arch_cpu_idle) from [<c0267318>] (cpu_startup_entry+0xa4/0x108)
[  296.958820] [<c0267318>] (cpu_startup_entry) from [<802085a4>] (0x802085a4)
[  296.965709] CPU3: stopping
[  296.968403] CPU: 3 PID: 0 Comm: swapper/3 Tainted: P      D      3.14.77 #1
[  296.975358] [<c021e3a8>] (unwind_backtrace) from [<c021b2a8>] (show_stack+0x10/0x14)
[  296.983078] [<c021b2a8>] (show_stack) from [<c03cddd4>] (dump_stack+0x80/0xa0)
[  296.990281] [<c03cddd4>] (dump_stack) from [<c021d650>] (handle_IPI+0xb8/0x140)
[  296.997572] [<c021d650>] (handle_IPI) from [<c02084fc>] (gic_handle_irq+0x58/0x60)
[  297.005122] [<c02084fc>] (gic_handle_irq) from [<c0209580>] (__irq_svc+0x40/0x70)
[  297.012579] Exception stack(0xcf0b7fa0 to 0xcf0b7fe8)
[  297.017622] 7fa0: ffffffed 00000000 0f5c9000 00000000 cf0b6000 cf0b6030 10c0387d c08362c8
[  297.025782] 7fc0: 8020406a 410fc075 00000000 00000000 c07f6c60 cf0b7fe8 c0218a20 c0218a24
[  297.033934] 7fe0: 60000013 ffffffff
[  297.037418] [<c0209580>] (__irq_svc) from [<c0218a24>] (arch_cpu_idle+0x30/0x50)
[  297.044800] [<c0218a24>] (arch_cpu_idle) from [<c0267318>] (cpu_startup_entry+0xa4/0x108)
[  297.052972] [<c0267318>] (cpu_startup_entry) from [<802085a4>] (0x802085a4)






Any feedback is very much appreciated :)
Thanks,
Albert
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