DreamDreams Posted December 6, 2016 Posted December 6, 2016 I was sort of disappointed with my RPi 2 VPN performance, which is about 2.5MiB/s while normal traffic can easily exceeds 5.5MiB/s. So I setup same VPN config on OPi One and run the test. The speed is impressive which is well above 5 MiB/s but it could only last about 10s before the box reboots itself. I can see one cpu core is occupied 100% by softirqd ( about 80% on RPi 2). My kernel version is 3.4.112 and StrongSwan version is 5.3.3. Don't have further information yet. When I get a chance to hook up serial console, I may collect more info.
DreamDreams Posted December 6, 2016 Author Posted December 6, 2016 Kernel log from serial console: [ 9240.894559] swapper/3: page allocation failure: order:10, mode:0x20 [ 9240.896677] swapper/2: page allocation failure: order:9, mode:0x20 [ 9240.896688] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9240.896698] cache: size-2097152, object size: 2097152, order: 9 [ 9240.896714] node 0: slabs: 36/36, objs: 36/36, free: 0 [ 9240.897241] swapper/2: page allocation failure: order:9, mode:0x20 [ 9240.897253] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9240.897262] cache: size-2097152, object size: 2097152, order: 9 [ 9240.897274] node 0: slabs: 36/36, objs: 36/36, free: 0 [ 9240.897400] swapper/2: page allocation failure: order:9, mode:0x20 [ 9240.897410] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9240.897419] cache: size-2097152, object size: 2097152, order: 9 [ 9240.897429] node 0: slabs: 36/36, objs: 36/36, free: 0 [ 9240.900264] swapper/2: page allocation failure: order:9, mode:0x20 [ 9240.900274] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9240.900283] cache: size-2097152, object size: 2097152, order: 9 [ 9240.900295] node 0: slabs: 36/36, objs: 36/36, free: 0 [ 9240.901423] swapper/2: page allocation failure: order:9, mode:0x20 [ 9240.901433] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9240.901442] cache: size-2097152, object size: 2097152, order: 9 [ 9240.901453] node 0: slabs: 36/36, objs: 36/36, free: 0 [ 9240.901770] swapper/2: page allocation failure: order:9, mode:0x20 [ 9240.901780] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9240.901789] cache: size-2097152, object size: 2097152, order: 9 [ 9240.901799] node 0: slabs: 36/36, objs: 36/36, free: 0 [ 9240.902073] swapper/2: page allocation failure: order:9, mode:0x20 [ 9240.902083] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9240.902092] cache: size-2097152, object size: 2097152, order: 9 [ 9240.902103] node 0: slabs: 36/36, objs: 36/36, free: 0 [ 9240.905836] swapper/2: page allocation failure: order:9, mode:0x20 [ 9240.905846] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9240.905855] cache: size-2097152, object size: 2097152, order: 9 [ 9240.905867] node 0: slabs: 36/36, objs: 36/36, free: 0 [ 9240.911896] swapper/2: page allocation failure: order:9, mode:0x20 [ 9240.911907] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9240.911916] cache: size-2097152, object size: 2097152, order: 9 [ 9240.911928] node 0: slabs: 36/36, objs: 36/36, free: 0 [ 9240.912015] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9240.912024] cache: size-2097152, object size: 2097152, order: 9 [ 9240.912035] node 0: slabs: 36/36, objs: 36/36, free: 0 [ 9246.175988] warn_alloc_failed: 344 callbacks suppressed [ 9246.185939] swapper/3: page allocation failure: order:10, mode:0x20 [ 9246.185939] kmem_getpages: 344 callbacks suppressed [ 9246.185939] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9246.185939] cache: size-4194304, object size: 4194304, order: 10 [ 9246.185939] node 0: slabs: 25/26, objs: 25/26, free: 1 [ 9246.324452] swapper/2: page allocation failure: order:10, mode:0x20 [ 9246.337061] swapper/3: page allocation failure: order:10, mode:0x20 [ 9246.337072] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9246.337081] cache: size-4194304, object size: 4194304, order: 10 [ 9246.337095] node 0: slabs: 26/26, objs: 26/26, free: 0 [ 9246.396937] swapper/0: page allocation failure: order:9, mode:0x20 [ 9246.396949] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9246.396959] cache: size-2097152, object size: 2097152, order: 9 [ 9246.396974] node 0: slabs: 31/31, objs: 31/31, free: 0 [ 9246.334408] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9246.334408] cache: size-4194304, object size: 4194304, order: 10 [ 9246.334408] node 0: slabs: 23/26, objs: 23/26, free: 3 [ 9246.505363] ksoftirqd/2: page allocation failure: order:9, mode:0x20 [ 9246.510339] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9246.510339] cache: size-2097152, object size: 2097152, order: 9 [ 9246.540656] swapper/3: page allocation failure: order:9, mode:0x20 [ 9246.540666] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9246.540675] cache: size-2097152, object size: 2097152, order: 9 [ 9246.540689] node 0: slabs: 32/32, objs: 32/32, free: 0 [ 9246.554050] swapper/1: page allocation failure: order:9, mode:0x20 [ 9246.554061] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9246.554071] cache: size-2097152, object size: 2097152, order: 9 [ 9246.554083] node 0: slabs: 32/32, objs: 32/32, free: 0 [ 9246.510339] node 0: slabs: 32/33, objs: 32/33, free: 1 [ 9246.842800] swapper/3: page allocation failure: order:9, mode:0x20 [ 9246.852754] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9246.852754] cache: size-2097152, object size: 2097152, order: 9 [ 9246.852754] node 0: slabs: 31/34, objs: 31/34, free: 3 [ 9246.940070] swapper/1: page allocation failure: order:10, mode:0x20 [ 9246.944507] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9246.944507] cache: size-4194304, object size: 4194304, order: 10 [ 9246.944507] node 0: slabs: 26/26, objs: 26/26, free: 0 [ 9247.000889] ksoftirqd/1: page allocation failure: order:10, mode:0x20 [ 9247.010035] SLAB: Unable to allocate memory on node 0 (gfp=0x20) [ 9247.010035] cache: size-4194304, object size: 4194304, order: 10 [ 9247.010035] node 0: slabs: 26/26, objs: 26/26, free: 0 [ 9247.080344] Unable to handle kernel NULL pointer dereference at virtual address 00000004 [ 9247.090304] pgd = c0004000 [ 9247.090304] [00000004] *pgd=00000000 [ 9247.090304] sunxi oops: enable sdcard JTAG interface [ 9247.090304] sunxi oops: cpu frequency: 1008 MHz [ 9247.090304] sunxi oops: ddr frequency: 624 MHz [ 9247.090304] sunxi oops: gpu frequency: 105 MHz [ 9247.090304] sunxi oops: cpu temperature: 56 [ 9247.090304] Internal error: Oops: 817 [#1] PREEMPT SMP ARM [ 9247.090304] Modules linked in: xfrm6_mode_tunnel macvlan iptable_nat ipt_MASQUERADE nf_nat_ftp nf_nat nf_conntrack_ipv6 nf_conntrack_ipv4 xt_time xt_tcpudp xt_state xt_quota xt_pkttype xt_physdev xt_owner xt_multipor] [ 9247.090304] CPU: 0 Not tainted (3.4.112-sun8i #14) [ 9247.090304] PC is at skb_dequeue+0x5c/0x74 [ 9247.090304] LR is at _raw_spin_lock_irqsave+0x18/0x1c [ 9247.090304] pc : [<c0568164>] lr : [<c069147c>] psr: a0000193 [ 9247.090304] sp : c09b1da8 ip : 00000000 fp : c09b1dc4 [ 9247.090304] r10: 00000040 r9 : 000000c8 r8 : d75ddc60 [ 9247.090304] r7 : 000000c6 r6 : d5958538 r5 : d595852c r4 : d2a76b00 [ 9247.090304] r3 : d595852c r2 : 00000000 r1 : 60000113 r0 : 60000113 [ 9247.090304] Flags: NzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel [ 9247.090304] Control: 10c5387d Table: 54f2406a DAC: 00000015 [ 9247.090304] [ 9247.090304] PC: 0xc05680e4: [ 9247.090304] 80e4 e28320b4 e1921f9f e2811001 e1820f91 e3300000 1afffffa e5933000 eafffff5 [ 9247.090304] 8104 e89da800 e1a0c00d e92dd8f0 e24cb004 e52de004 e8bd4000 e280600c e1a05000 [ 9247.090304] 8124 e1a00006 eb04a4cd e5954000 e1550004 03a04000 e1a01000 0a00000a e3540000 [ 9247.090304] 8144 0a000008 e5953008 e3a0c000 e2433001 e5853008 e894000c e584c004 e584c000 [ 9247.090304] 8164 e5823004 e5832000 e1a00006 eb04a2f7 e1a00004 e89da8f0 e1a0c00d e92dd8f0 [ 9247.090304] 8184 e24cb004 e52de004 e8bd4000 e280600c e1a05000 e1a00006 eb04a4b0 e5954004 [ 9247.090304] 81a4 e1550004 03a04000 e1a01000 0a00000a e3540000 0a000008 e5953008 e3a0c000 [ 9247.090304] 81c4 e2433001 e5853008 e894000c e584c004 e584c000 e5823004 e5832000 e1a00006 [ 9247.090304] [ 9247.090304] LR: 0xc06913fc: [ 9247.090304] 13fc e3330000 01853f92 e3530000 0a000012 e121f000 e5943004 e2433001 e5843004 [ 9247.090304] 141c e5943000 e3130002 0a000000 ebfffbd7 e5953004 e3530000 03a03001 05853004 [ 9247.090304] 143c e5953000 e3530000 0affffe5 e5953004 e3530000 0affffe2 eafffff8 f57ff05f [ 9247.090304] 145c e5853004 e89da830 e1a0c00d e92dd800 e24cb004 e52de004 e8bd4000 ebffffcf [ 9247.090304] 147c e89da800 e1a0c00d e92dd800 e24cb004 e52de004 e8bd4000 ebfffff2 e89da800 [ 9247.090304] 149c e1a0c00d e92dd800 e24cb004 e52de004 e8bd4000 ebffffeb e89da800 e1a0c00d [ 9247.090304] 14bc e92dd830 e24cb004 e52de004 e8bd4000 ebffffba e1a04000 ebe67a71 e121f004 [ 9247.090304] 14dc e89da830 e1a0c00d e92dd800 e24cb004 e52de004 e8bd4000 ebffffef e89da800 [ 9247.090304] [ 9247.090304] SP: 0xc09b1d28: [ 9247.090304] 1d28 00000000 20000113 c09b1d4c c09b1d40 c06913b8 c0573984 c0568164 a0000193 [ 9247.090304] 1d48 ffffffff c09b1d94 c09b1dc4 c09b1d60 c000dad8 c0008370 60000113 60000113 [ 9247.090304] 1d68 00000000 d595852c d2a76b00 d595852c d5958538 000000c6 d75ddc60 000000c8 [ 9247.090304] 1d88 00000040 c09b1dc4 00000000 c09b1da8 c069147c c0568164 a0000193 ffffffff [ 9247.090304] 1da8 d5958000 c09ff2a0 c0ad5d54 000000c6 c09b1df4 c09b1dc8 c0463740 c0568114 [ 9247.090304] 1dc8 c0576a74 c0575d6c d5958548 d5958548 d2919b40 d75ddc80 00000001 390873e1 [ 9247.090304] 1de8 c09b1e34 c09b1df8 c0465b38 c04636bc 00000000 c09b1e08 c042148c 51800040 [ 9247.090304] 1e08 43b9e851 d5958548 c0ff1e00 00000001 c09b0000 0000012c 00000040 c0a257c3 [ 9247.090304] [ 9247.090304] FP: 0xc09b1d44: [ 9247.090304] 1d44 a0000193 ffffffff c09b1d94 c09b1dc4 c09b1d60 c000dad8 c0008370 60000113 [ 9247.090304] 1d64 60000113 00000000 d595852c d2a76b00 d595852c d5958538 000000c6 d75ddc60 [ 9247.090304] 1d84 000000c8 00000040 c09b1dc4 00000000 c09b1da8 c069147c c0568164 a0000193 [ 9247.090304] 1da4 ffffffff d5958000 c09ff2a0 c0ad5d54 000000c6 c09b1df4 c09b1dc8 c0463740 [ 9247.090304] 1dc4 c0568114 c0576a74 c0575d6c d5958548 d5958548 d2919b40 d75ddc80 00000001 [ 9247.090304] 1de4 390873e1 c09b1e34 c09b1df8 c0465b38 c04636bc 00000000 c09b1e08 c042148c [ 9247.090304] 1e04 51800040 43b9e851 d5958548 c0ff1e00 00000001 c09b0000 0000012c 00000040 [ 9247.090304] 1e24 c0a257c3 c09b1e74 c09b1e38 c0576bc8 c04659a8 c09b1e84 c09b20c0 c0ff1e08 [ 9247.090304] [ 9247.090304] R3: 0xd59584ac: [ 9247.090304] 84ac 00000000 00000000 00000000 00000000 00000000 d5b8f800 00000000 00000000 [ 9247.090304] 84cc 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 9247.090304] 84ec 00000000 00000000 00000000 00000000 00000000 d75dc000 d49a7c00 0000002f [ 9247.090304] 850c 00000030 575dc000 000007ff d75dd000 d5b8f400 000000c6 000000c8 575dd000 [ 9247.090304] 852c d2919b40 d1244d80 0000007e 00000001 00000000 d5958000 c09ff2f8 c0ff1e08 [ 9247.090304] 854c c0ff1e08 00000001 00000040 c046599c 00000000 d5958000 d5958094 d5958094 [ 9247.090304] 856c 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 9247.090304] 858c 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 9247.090304] [ 9247.090304] R4: 0xd2a76a80: [ 9247.090304] 6a80 00000000 00000000 00000000 00000000 00000040 00000000 0000000e 00000000 [ 9247.090304] 6aa0 00000000 00080004 00000000 d53a7b08 00000000 00000000 00000002 a6bb2759 [ 9247.090304] 6ac0 00000000 00000000 00000008 00000000 00000000 c3c0004e c3c0004e c3c00040 [ 9247.090304] 6ae0 c3c0008e c3ffff40 c3c00000 c3c0004e 000010c0 00000001 00000000 00000000 [ 9247.090304] 6b00 00000000 d29e9740 00000000 00000000 00000000 00000000 00000000 00000000 [ 9247.090304] 6b20 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 9247.090304] 6b40 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 9247.090304] 6b60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 9247.090304] [ 9247.090304] R5: 0xd59584ac: [ 9247.090304] 84ac 00000000 00000000 00000000 00000000 00000000 d5b8f800 00000000 00000000 [ 9247.090304] 84cc 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 9247.090304] 84ec 00000000 00000000 00000000 00000000 00000000 d75dc000 d49a7c00 0000002f [ 9247.090304] 850c 00000030 575dc000 000007ff d75dd000 d5b8f400 000000c6 000000c8 575dd000 [ 9247.090304] 852c d2919b40 d1244d80 0000007e 00000001 00000000 d5958000 c09ff2f8 c0ff1e08 [ 9247.090304] 854c c0ff1e08 00000001 00000040 c046599c 00000000 d5958000 d5958094 d5958094 [ 9247.090304] 856c 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 9247.090304] 858c 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 9247.090304] [ 9247.090304] R6: 0xd59584b8: [ 9247.090304] 84b8 00000000 00000000 d5b8f800 00000000 00000000 00000000 00000000 00000000 [ 9247.090304] 84d8 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 9247.090304] 84f8 00000000 00000000 d75dc000 d49a7c00 0000002f 00000030 575dc000 000007ff [ 9247.090304] 8518 d75dd000 d5b8f400 000000c6 000000c8 575dd000 d2919b40 d1244d80 0000007e [ 9247.090304] 8538 00000001 00000000 d5958000 c09ff2f8 c0ff1e08 c0ff1e08 00000001 00000040 [ 9247.090304] 8558 c046599c 00000000 d5958000 d5958094 d5958094 00000000 00000000 00000000 [ 9247.090304] 8578 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 9247.090304] 8598 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 9247.090304] [ 9247.090304] R8: 0xd75ddbe0: [ 9247.090304] dbe0 05de0381 010007ff 5523a040 575ddbf0 05de0381 010007ff 55090040 575ddc00 [ 9247.090304] dc00 00800381 010007ff 42000040 575ddc10 05de0381 010007ff 4c000040 575ddc20 [ 9247.090304] dc20 05de0381 010007ff 50f70040 575ddc30 05de0381 010007ff 48400040 575ddc40 [ 9247.090304] dc40 05de0381 010007ff 523e0040 575ddc50 05de0381 010007ff 44800040 575ddc60 [ 9247.090304] dc60 05de0381 010007ff 51c80040 575ddc70 05de0381 010007ff 51800040 575ddc80 [ 9247.090304] dc80 05de0381 010007ff 53e60040 575ddc90 05de0381 010007ff 50d34040 575ddca0 [ 9247.090304] dca0 00460320 010007ff 514e0040 575ddcb0 00460320 010007ff 52afa040 575ddcc0 [ 9247.090304] dcc0 05de0381 010007ff 50eba040 575ddcd0 05de0381 010007ff 49700040 575ddce0 [ 9247.090304] Process swapper/0 (pid: 0, stack limit = 0xc09b02f8) [ 9247.090304] Stack: (0xc09b1da8 to 0xc09b2000) [ 9247.090304] 1da0: d5958000 c09ff2a0 c0ad5d54 000000c6 c09b1df4 c09b1dc8 [ 9247.090304] 1dc0: c0463740 c0568114 c0576a74 c0575d6c d5958548 d5958548 d2919b40 d75ddc80 [ 9247.090304] 1de0: 00000001 390873e1 c09b1e34 c09b1df8 c0465b38 c04636bc 00000000 c09b1e08 [ 9247.090304] 1e00: c042148c 51800040 43b9e851 d5958548 c0ff1e00 00000001 c09b0000 0000012c [ 9247.090304] 1e20: 00000040 c0a257c3 c09b1e74 c09b1e38 c0576bc8 c04659a8 c09b1e84 c09b20c0 [ 9247.090304] 1e40: c0ff1e08 000da6f6 00000000 c09b0000 c09b208c 00000003 00000001 c0a4b2c0 [ 9247.090304] 1e60: 00000102 0000000a c09b1ebc c09b1e78 c00309e0 c0576af4 c09b1ea4 c09b1e88 [ 9247.090304] 1e80: c00a3174 c09b20c0 00000000 000da6f5 c09b7780 c09b0000 c09d3520 c09b0000 [ 9247.090304] 1ea0: 00000072 00000000 c098b824 00000000 c09b1ed4 c09b1ec0 c0030f88 c0030908 [ 9247.090304] 1ec0: c09ae230 c09d3520 c09b1efc c09b1ed8 c000ef58 c0030f3c c09d1ca0 c09b1f20 [ 9247.090304] 1ee0: f1c82000 c09b1f54 c0fecc00 c098b824 c09b1f1c c09b1f00 c000853c c000eed4 [ 9247.090304] 1f00: c000f2dc 60000013 ffffffff c09b1f54 c09b1f74 c09b1f20 c000db40 c00084fc [ 9247.090304] 1f20: c0fefb38 c09d224c 0000000f 00000000 c09b0000 c0a4ca48 00000001 ffffffff [ 9247.090304] 1f40: c0fecc00 c098b824 00000000 c09b1f74 c09b1f78 c09b1f68 c000f2d8 c000f2dc [ 9247.090304] 1f60: 60000013 ffffffff c09b1f8c c09b1f78 c000f694 c000f2b4 c09b1f94 c0a4ca48 [ 9247.090304] 1f80: c09b1fb4 c09b1f90 c067f558 c000f5f8 c00ad2a8 00000001 00000000 c09d3300 [ 9247.090304] 1fa0: 00000000 c09d1c40 c09b1ff4 c09b1fb8 c095c8a8 c067f4c8 ffffffff ffffffff [ 9247.090304] 1fc0: c095c33c 00000000 00000000 c098b824 10c5387d c09d1c9c c098b820 c09d7d44 [ 9247.090304] 1fe0: 4000406a 410fc075 00000000 c09b1ff8 40008044 c095c5c0 00000000 00000000 [ 9247.090304] [<c0568164>] (skb_dequeue+0x5c/0x74) from [<c0463740>] (geth_rx_refill+0x90/0x180) [ 9247.090304] [<c0463740>] (geth_rx_refill+0x90/0x180) from [<c0465b38>] (geth_poll+0x19c/0x1cc) [ 9247.090304] [<c0465b38>] (geth_poll+0x19c/0x1cc) from [<c0576bc8>] (net_rx_action+0xe0/0x1e0) [ 9247.090304] [<c0576bc8>] (net_rx_action+0xe0/0x1e0) from [<c00309e0>] (__do_softirq+0xe4/0x240) [ 9247.090304] [<c00309e0>] (__do_softirq+0xe4/0x240) from [<c0030f88>] (irq_exit+0x58/0xa4) [ 9247.090304] [<c0030f88>] (irq_exit+0x58/0xa4) from [<c000ef58>] (handle_IRQ+0x90/0xbc) [ 9247.090304] [<c000ef58>] (handle_IRQ+0x90/0xbc) from [<c000853c>] (gic_handle_irq+0x4c/0x6c) [ 9247.090304] [<c000853c>] (gic_handle_irq+0x4c/0x6c) from [<c000db40>] (__irq_svc+0x40/0x74) [ 9247.090304] Exception stack(0xc09b1f20 to 0xc09b1f68) [ 9247.090304] 1f20: c0fefb38 c09d224c 0000000f 00000000 c09b0000 c0a4ca48 00000001 ffffffff [ 9247.090304] 1f40: c0fecc00 c098b824 00000000 c09b1f74 c09b1f78 c09b1f68 c000f2d8 c000f2dc [ 9247.090304] 1f60: 60000013 ffffffff [ 9247.090304] [<c000db40>] (__irq_svc+0x40/0x74) from [<c000f2dc>] (default_idle+0x34/0x3c) [ 9247.090304] [<c000f2dc>] (default_idle+0x34/0x3c) from [<c000f694>] (cpu_idle+0xa8/0xf4) [ 9247.090304] [<c000f694>] (cpu_idle+0xa8/0xf4) from [<c067f558>] (rest_init+0x9c/0xb8) [ 9247.090304] [<c067f558>] (rest_init+0x9c/0xb8) from [<c095c8a8>] (start_kernel+0x2f4/0x354) [ 9247.090304] Code: e5853008 e894000c e584c004 e584c000 (e5823004) [ 9249.547111] ---[ end trace bc903b5b8c9d2fd4 ]--- [ 9249.560238] Kernel panic - not syncing: Fatal exception in interrupt [ 9249.575393] CPU3: stopping [ 9249.585388] [<c0016a20>] (unwind_backtrace+0x0/0xe8) from [<c0687a10>] (dump_stack+0x20/0x24) [ 9249.585388] [<c0687a10>] (dump_stack+0x20/0x24) from [<c0014170>] (handle_IPI+0x114/0x298) [ 9249.585388] [<c0014170>] (handle_IPI+0x114/0x298) from [<c0008554>] (gic_handle_irq+0x64/0x6c) [ 9249.585388] [<c0008554>] (gic_handle_irq+0x64/0x6c) from [<c000db40>] (__irq_svc+0x40/0x74) [ 9249.585388] Exception stack(0xd58fff68 to 0xd58fffb0) [ 9249.585388] ff60: c1007b38 c09d224c 0000000f 00000000 d58fe000 00000003 [ 9249.585388] ff80: d58fe000 c0a2a2a4 4000406a 410fc075 00000000 d58fffbc d58fffc0 d58fffb0 [ 9249.585388] ffa0: c000f2d8 c000f2dc 60000013 ffffffff [ 9249.585388] [<c000db40>] (__irq_svc+0x40/0x74) from [<c000f2dc>] (default_idle+0x34/0x3c) [ 9249.585388] [<c000f2dc>] (default_idle+0x34/0x3c) from [<c000f694>] (cpu_idle+0xa8/0xf4) [ 9249.585388] [<c000f694>] (cpu_idle+0xa8/0xf4) from [<c068491c>] (secondary_start_kernel+0x108/0x12c) [ 9249.585388] [<c068491c>] (secondary_start_kernel+0x108/0x12c) from [<40683f34>] (0x40683f34) [ 9249.585389] CPU2: stopping [ 9249.585389] [<c0016a20>] (unwind_backtrace+0x0/0xe8) from [<c0687a10>] (dump_stack+0x20/0x24) [ 9249.585389] [<c0687a10>] (dump_stack+0x20/0x24) from [<c0014170>] (handle_IPI+0x114/0x298) [ 9249.585389] [<c0014170>] (handle_IPI+0x114/0x298) from [<c0008554>] (gic_handle_irq+0x64/0x6c) [ 9249.585389] [<c0008554>] (gic_handle_irq+0x64/0x6c) from [<c000db40>] (__irq_svc+0x40/0x74) [ 9249.585389] Exception stack(0xd58f1f68 to 0xd58f1fb0) [ 9249.585389] 1f60: c0fffb38 c09d224c 0000000f 00000000 d58f0000 00000002 [ 9249.585389] 1f80: d58f0000 c0a2a2a4 4000406a 410fc075 00000000 d58f1fbc d58f1fc0 d58f1fb0 [ 9249.585389] 1fa0: c000f2d8 c000f2dc 60000013 ffffffff [ 9249.585389] [<c000db40>] (__irq_svc+0x40/0x74) from [<c000f2dc>] (default_idle+0x34/0x3c) [ 9249.585389] [<c000f2dc>] (default_idle+0x34/0x3c) from [<c000f694>] (cpu_idle+0xa8/0xf4) [ 9249.585389] [<c000f694>] (cpu_idle+0xa8/0xf4) from [<c068491c>] (secondary_start_kernel+0x108/0x12c) [ 9249.585389] [<c068491c>] (secondary_start_kernel+0x108/0x12c) from [<40683f34>] (0x40683f34) [ 9249.585389] CPU1: stopping [ 9249.585389] [<c0016a20>] (unwind_backtrace+0x0/0xe8) from [<c0687a10>] (dump_stack+0x20/0x24) [ 9249.585389] [<c0687a10>] (dump_stack+0x20/0x24) from [<c0014170>] (handle_IPI+0x114/0x298) [ 9249.585389] [<c0014170>] (handle_IPI+0x114/0x298) from [<c0008554>] (gic_handle_irq+0x64/0x6c) [ 9249.585389] [<c0008554>] (gic_handle_irq+0x64/0x6c) from [<c000db40>] (__irq_svc+0x40/0x74) [ 9249.585389] Exception stack(0xd58c1f68 to 0xd58c1fb0) [ 9249.585389] 1f60: c0ff7b38 c09d224c 0000000f 00000000 d58c0000 00000001 [ 9249.585389] 1f80: d58c0000 c0a2a2a4 4000406a 410fc075 00000000 d58c1fbc d58c1fc0 d58c1fb0 [ 9249.585389] 1fa0: c000f2d8 c000f2dc 60000013 ffffffff [ 9249.585389] [<c000db40>] (__irq_svc+0x40/0x74) from [<c000f2dc>] (default_idle+0x34/0x3c) [ 9249.585389] [<c000f2dc>] (default_idle+0x34/0x3c) from [<c000f694>] (cpu_idle+0xa8/0xf4) [ 9249.585389] [<c000f694>] (cpu_idle+0xa8/0xf4) from [<c068491c>] (secondary_start_kernel+0x108/0x12c) [ 9249.585389] [<c068491c>] (secondary_start_kernel+0x108/0x12c) from [<40683f34>] (0x40683f34) [ 9249.570216] [hotplug]: cpu(0) try to kill cpu(1) [ 9249.570216] [hotplug]: try to kill cpu:1 failed! [ 9249.570216] [hotplug]: cpu(0) try to kill cpu(2) [ 9249.570216] [hotplug]: try to kill cpu:2 failed! [ 9249.570216] [hotplug]: cpu(0) try to kill cpu(3) [ 9249.570216] [hotplug]: try to kill cpu:3 failed! [ 9249.570216] Rebooting in 3 seconds.. [ 9249.570216] Restarting Linux version 3.4.112-sun8i (root@xenial) (gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.1) ) #14 SMP PREEMPT Wed Sep 14 20:29:31 CEST 2016 [ 9249.570216]
Dan25 Posted December 7, 2016 Posted December 7, 2016 Reflash your microSD card and get a better power supply, maybe consider going with OpenVPN so you can get better throughput too.
DreamDreams Posted December 7, 2016 Author Posted December 7, 2016 Tried 4.9 kernel, doesn't have this problem. VPN speed can be stable at about 5.2 MiB/s, one cpu core 100%. Line speed is 50 Mbit/s, without VPN, cpu load is close to 0 and can achieve line speed. I use axel with 40 thread to download a 3GB file for test.
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