Il Tuesday 05 June 2007 01:03:00 Matteo Croce ha scritto: > This is another weird behaviour: small packets does arrive, big ones are > corrupt: > > [~/src/openwrt]$ ping libero.it -s 502 > PING libero.it (195.210.91.83) 502(530) bytes of data. > 510 bytes from vs-fe.iol.it (195.210.91.83): icmp_seq=1 ttl=117 time=389 ms > 510 bytes from vs-fe.iol.it (195.210.91.83): icmp_seq=2 ttl=117 time=74.3 ms > 510 bytes from vs-fe.iol.it (195.210.91.83): icmp_seq=3 ttl=117 time=54.6 ms > 510 bytes from vs-fe.iol.it (195.210.91.83): icmp_seq=4 ttl=117 time=47.5 ms > > --- libero.it ping statistics --- > 4 packets transmitted, 4 received, 0% packet loss, time 2999ms > rtt min/avg/max/mdev = 47.561/141.382/389.028/143.315 ms > [~/src/openwrt]$ ping libero.it -s 503 > PING libero.it (195.210.91.83) 503(531) bytes of data. > 511 bytes from vs-fe.iol.it (195.210.91.83): icmp_seq=1 ttl=117 time=52.4 ms > wrong data byte #502 should be 0xf6 but was 0xfa > #16 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 > 27 28 29 2a 2b 2c 2d 2e 2f > #48 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 > 47 48 49 4a 4b 4c 4d 4e 4f > #80 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 64 65 66 > 67 68 69 6a 6b 6c 6d 6e 6f > #112 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 84 85 86 > 87 88 89 8a 8b 8c 8d 8e 8f > #144 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 a4 a5 a6 > a7 a8 a9 aa ab ac ad ae af > #176 b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 c4 c5 c6 > c7 c8 c9 ca cb cc cd ce cf > #208 d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df e0 e1 e2 e3 e4 e5 e6 > e7 e8 e9 ea eb ec ed ee ef > #240 f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd fe ff 0 1 2 3 4 5 6 7 8 9 a > b c d e f > #272 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 > 27 28 29 2a 2b 2c 2d 2e 2f > #304 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 > 47 48 49 4a 4b 4c 4d 4e 4f > #336 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 64 65 66 > 67 68 69 6a 6b 6c 6d 6e 6f > #368 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 84 85 86 > 87 88 89 8a 8b 8c 8d 8e 8f > #400 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 a4 a5 a6 > a7 a8 a9 aa ab ac ad ae af > #432 b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 c4 c5 c6 > c7 c8 c9 ca cb cc cd ce cf > #464 d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df e0 e1 e2 e3 e4 e5 e6 > e7 e8 e9 ea eb ec ed ee ef > #496 f0 f1 f2 f3 f4 f5 fa > 511 bytes from vs-fe.iol.it (195.210.91.83): icmp_seq=2 ttl=117 time=48.5 ms > wrong data byte #502 should be 0xf6 but was 0xfa > #16 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 > 27 28 29 2a 2b 2c 2d 2e 2f > #48 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 > 47 48 49 4a 4b 4c 4d 4e 4f > #80 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 64 65 66 > 67 68 69 6a 6b 6c 6d 6e 6f > #112 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 84 85 86 > 87 88 89 8a 8b 8c 8d 8e 8f > #144 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 a4 a5 a6 > a7 a8 a9 aa ab ac ad ae af > #176 b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 c4 c5 c6 > c7 c8 c9 ca cb cc cd ce cf > #208 d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df e0 e1 e2 e3 e4 e5 e6 > e7 e8 e9 ea eb ec ed ee ef > #240 f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd fe ff 0 1 2 3 4 5 6 7 8 9 a > b c d e f > #272 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 > 27 28 29 2a 2b 2c 2d 2e 2f > #304 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 > 47 48 49 4a 4b 4c 4d 4e 4f > #336 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 64 65 66 > 67 68 69 6a 6b 6c 6d 6e 6f > #368 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 84 85 86 > 87 88 89 8a 8b 8c 8d 8e 8f > #400 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 a4 a5 a6 > a7 a8 a9 aa ab ac ad ae af > #432 b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 c4 c5 c6 > c7 c8 c9 ca cb cc cd ce cf > #464 d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df e0 e1 e2 e3 e4 e5 e6 > e7 e8 e9 ea eb ec ed ee ef > #496 f0 f1 f2 f3 f4 f5 fa > 511 bytes from vs-fe.iol.it (195.210.91.83): icmp_seq=3 ttl=117 time=81.2 ms > wrong data byte #502 should be 0xf6 but was 0xfa > #16 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 > 27 28 29 2a 2b 2c 2d 2e 2f > #48 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 > 47 48 49 4a 4b 4c 4d 4e 4f > #80 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 64 65 66 > 67 68 69 6a 6b 6c 6d 6e 6f > #112 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 84 85 86 > 87 88 89 8a 8b 8c 8d 8e 8f > #144 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 a4 a5 a6 > a7 a8 a9 aa ab ac ad ae af > #176 b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 c4 c5 c6 > c7 c8 c9 ca cb cc cd ce cf > #208 d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df e0 e1 e2 e3 e4 e5 e6 > e7 e8 e9 ea eb ec ed ee ef > #240 f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd fe ff 0 1 2 3 4 5 6 7 8 9 a > b c d e f > #272 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 > 27 28 29 2a 2b 2c 2d 2e 2f > #304 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 > 47 48 49 4a 4b 4c 4d 4e 4f > #336 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 64 65 66 > 67 68 69 6a 6b 6c 6d 6e 6f > #368 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 84 85 86 > 87 88 89 8a 8b 8c 8d 8e 8f > #400 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 a4 a5 a6 > a7 a8 a9 aa ab ac ad ae af > #432 b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 c4 c5 c6 > c7 c8 c9 ca cb cc cd ce cf > #464 d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df e0 e1 e2 e3 e4 e5 e6 > e7 e8 e9 ea eb ec ed ee ef > #496 f0 f1 f2 f3 f4 f5 fa > > --- libero.it ping statistics --- > 3 packets transmitted, 3 received, 0% packet loss, time 2008ms > rtt min/avg/max/mdev = 48.570/60.747/81.264/14.594 ms > > then after a while the card goes crazy and i have to poweroff: > > [~/src/openwrt/target/linux/ar7-2.6/files]$ iwconfig > lo no wireless extensions. > > Warning: Driver for device eth0 has been compiled with version 22 > of Wireless Extension, while this program supports up to version 20. > Some things may be broken... > > eth0 IEEE 802.11-DS ESSID:"" > Mode:Managed Frequency:2.412 GHz Access Point: E8:5C:D1:10:00:81 > Bit Rate:-1.59224e+06 kb/s Tx-Power=20 dBm Sensitivity=0/65535 > Retry limit:16 RTS thr:off Fragment thr:off > Power Management:off > Link Quality=0/100 Signal level=-106 dBm Noise level=-16 dBm > Rx invalid nwid:1072759808 Rx invalid crypt:-1 Rx invalid frag:0 > Tx excessive retries:-1 Invalid misc:-2145016118 Missed > beacon:-32512 > > wifi0 IEEE 802.11-DS ESSID:"" > Mode:Managed Frequency:2.412 GHz Access Point: A0:3A:99:EB:1D:2B > Bit Rate:-1.59224e+06 kb/s Tx-Power=20 dBm Sensitivity=0/65535 > Retry limit:16 RTS thr:off Fragment thr:off > Power Management:off > Link Quality=175/100 Signal level=-106 dBm Noise level=-16 dBm > Rx invalid nwid:1072759808 Rx invalid crypt:-1 Rx invalid frag:0 > Tx excessive retries:-1 Invalid misc:-2145016118 Missed > beacon:-32512 > > eth1 no wireless extensions. > > [~/src/openwrt/target/linux/ar7-2.6/files]$ iwconfig eth0 > Warning: Driver for device eth0 has been compiled with version 22 > of Wireless Extension, while this program supports up to version 20. > Some things may be broken... > > eth0 IEEE 802.11-DS ESSID:"" > Mode:Managed Frequency:2.412 GHz Access Point: E8:1C:F1:06:00:81 > Bit Rate:0 kb/s Tx-Power=20 dBm Sensitivity=0/65535 > Retry limit:16 RTS thr:off Fragment thr:off > Power Management:off > Link Quality=239/100 Signal level=-10 dBm Noise level=-57 dBm > Rx invalid nwid:-2144973184 Rx invalid crypt:-1 Rx invalid frag:0 > Tx excessive retries:-1 Invalid misc:-2145016118 Missed > beacon:-32512 > > [~/src/openwrt/target/linux/ar7-2.6/files]$ iwconfig eth0 > Warning: Driver for device eth0 has been compiled with version 22 > of Wireless Extension, while this program supports up to version 20. > Some things may be broken... > > eth0 IEEE 802.11-DS ESSID:"" > Mode:Managed Frequency:2.412 GHz Access Point: E8:DC:8D:06:00:81 > Bit Rate:0 kb/s Tx-Power=20 dBm Sensitivity=0/65535 > Retry limit:16 RTS thr:off Fragment thr:off > Power Management:off > Link Quality=0/100 Signal level=-10 dBm Noise level=-6 dBm > Rx invalid nwid:972605568 Rx invalid crypt:-1 Rx invalid frag:0 > Tx excessive retries:-1 Invalid misc:-2145016118 Missed > beacon:-32512 > > [~/src/openwrt/target/linux/ar7-2.6/files]$ iwconfig eth0 > Warning: Driver for device eth0 has been compiled with version 22 > of Wireless Extension, while this program supports up to version 20. > Some things may be broken... > > eth0 IEEE 802.11-DS ESSID:"" > Mode:Managed Frequency:2.412 GHz Access Point: E8:1C:F1:06:00:81 > Bit Rate:0 kb/s Tx-Power=20 dBm Sensitivity=0/65535 > Retry limit:16 RTS thr:off Fragment thr:off > Power Management:off > Link Quality=0/100 Signal level=-106 dBm Noise level=-6 dBm > Rx invalid nwid:1072761536 Rx invalid crypt:-1 Rx invalid frag:0 > Tx excessive retries:-1 Invalid misc:-2145016118 Missed > beacon:-32512 > I don't know if it's related, but is this normal? $ sudo ping macbook-luca -s 1472 -i .001 PING macbook-luca (192.168.1.4) 1472(1500) bytes of data. 1480 bytes from macbook-luca.openwrt (192.168.1.4): icmp_seq=1 ttl=64 time=11.6 ms .. 1480 bytes from macbook-luca.openwrt (192.168.1.4): icmp_seq=229 ttl=64 time=13.7 ms wrong data byte #1094 should be 0x46 but was 0x44 #16 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f #48 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f #80 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f #112 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 84 85 86 87 88 89 8a 8b 8c 8d 8e 8f #144 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af #176 b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 c4 c5 c6 c7 c8 c9 ca cb cc cd ce cf #208 d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df e0 e1 e2 e3 e4 e5 e6 e7 e8 e9 ea eb ec ed ee ef #240 f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd fe ff 0 1 2 3 4 5 6 7 8 9 a b c d e f #272 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f #304 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f #336 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f #368 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 84 85 86 87 88 89 8a 8b 8c 8d 8e 8f #400 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af #432 b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 c4 c5 c6 c7 c8 c9 ca cb cc cd ce cf #464 d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df e0 e1 e2 e3 e4 e5 e6 e7 e8 e9 ea eb ec ed ee ef #496 f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd fe ff 0 1 2 3 4 5 6 7 8 9 a b c d e f #528 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f #560 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f #592 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f #624 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 84 85 86 87 88 89 8a 8b 8c 8d 8e 8f #656 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af #688 b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 c4 c5 c6 c7 c8 c9 ca cb cc cd ce cf #720 d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df e0 e1 e2 e3 e4 e5 e6 e7 e8 e9 ea eb ec ed ee ef #752 f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd fe ff 0 1 2 3 4 5 6 7 8 9 a b c d e f #784 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f #816 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f #848 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f #880 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 84 85 86 87 88 89 8a 8b 8c 8d 8e 8f #912 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af #944 b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 c4 c5 c6 c7 c8 c9 ca cb cc cd ce cf #976 d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df e0 e1 e2 e3 e4 e5 e6 e7 e8 e9 ea eb ec ed ee ef #1008 f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd fe ff 0 1 2 3 4 5 6 7 8 9 a b c d e f #1040 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f #1072 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 44 45 46 47 48 49 4a 4b 4c 4d #1104 4e 4f 50 51 52 53 54 55 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 64 65 64 65 66 67 68 69 #1136 6a 6b 6c 6d 6e 6f 70 71 72 73 74 75 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 84 85 84 85 #1168 86 87 88 89 8a 8b 8c 8d 8e 8f 90 91 92 93 94 95 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 #1200 a4 a5 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 #1232 c2 c3 c4 c5 c6 c7 c8 c9 ca cb cc cd ce cf d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df e0 e1 #1264 e2 e3 e4 e5 e6 e7 e8 e9 ea eb ec ed ee ef f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd fe ff 0 1 #1296 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 #1328 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 #1360 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 #1392 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 #1424 82 83 84 85 86 87 88 89 8a 8b 8c 8d 8e 8f 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 #1456 a2 a3 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af b0 b1 1480 bytes from macbook-luca.openwrt (192.168.1.4): icmp_seq=231 ttl=64 time=6.32 ms 1480 bytes from macbook-luca.openwrt (192.168.1.4): icmp_seq=232 ttl=64 time=7.14 ms 1480 bytes from macbook-luca.openwrt (192.168.1.4): icmp_seq=233 ttl=64 time=7.07 ms 1480 bytes from macbook-luca.openwrt (192.168.1.4): icmp_seq=234 ttl=64 time=6.75 ms 1480 bytes from macbook-luca.openwrt (192.168.1.4): icmp_seq=235 ttl=64 time=7.70 ms 1480 bytes from macbook-luca.openwrt (192.168.1.4): icmp_seq=236 ttl=64 time=6.22 ms ... 1480 bytes from router.openwrt (192.168.1.1): icmp_seq=69 ttl=64 time=5.86 ms wrong data byte #580 should be 0x44 but was 0x42 #16 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f #48 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f #80 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f #112 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 84 85 86 87 88 89 8a 8b 8c 8d 8e 8f #144 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af #176 b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 c4 c5 c6 c7 c8 c9 ca cb cc cd ce cf #208 d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df e0 e1 e2 e3 e4 e5 e6 e7 e8 e9 ea eb ec ed ee ef #240 f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd fe ff 0 1 2 3 4 5 6 7 8 9 a b c d e f #272 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f #304 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f #336 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f #368 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 84 85 86 87 88 89 8a 8b 8c 8d 8e 8f #400 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af #432 b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 c4 c5 c6 c7 c8 c9 ca cb cc cd ce cf #464 d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df e0 e1 e2 e3 e4 e5 e6 e7 e8 e9 ea eb ec ed ee ef #496 f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd fe ff 0 1 2 3 4 5 6 7 8 9 a b c d e f #528 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f #560 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 42 43 44 45 46 47 48 49 4a 4b 4c 4d #592 4e 4f 50 51 52 53 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 62 63 64 65 66 67 68 69 #624 6a 6b 6c 6d 6e 6f 70 71 72 73 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 82 83 84 85 #656 86 87 88 89 8a 8b 8c 8d 8e 8f 90 91 92 93 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 #688 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 #720 c4 c5 c6 c7 c8 c9 ca cb cc cd ce cf d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df e0 e1 e2 e3 #752 e4 e5 e6 e7 e8 e9 ea eb ec ed ee ef f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd fe ff 0 1 2 3 #784 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 #816 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 #848 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 #880 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 #912 84 85 86 87 88 89 8a 8b 8c 8d 8e 8f 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 #944 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 #976 c4 c5 c6 c7 c8 c9 ca cb cc cd ce cf d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df e0 e1 e2 e3 #1008 e4 e5 e6 e7 e8 e9 ea eb ec ed ee ef f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd fe ff 0 1 2 3 #1040 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 #1072 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 #1104 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 #1136 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 #1168 84 85 86 87 88 89 8a 8b 8c 8d 8e 8f 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 #1200 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 #1232 c4 c5 c6 c7 c8 c9 ca cb cc cd ce cf d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df e0 e1 e2 e3 #1264 e4 e5 e6 e7 e8 e9 ea eb ec ed ee ef f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd fe ff 0 1 2 3 #1296 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 #1328 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 #1360 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 #1392 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83 #1424 84 85 86 87 88 89 8a 8b 8c 8d 8e 8f 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 #1456 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af b0 b1 b2 b3 1480 bytes from router.openwrt (192.168.1.1): icmp_seq=70 ttl=64 time=5.36 ms ... 1480 bytes from router.openwrt (192.168.1.1): icmp_seq=46 ttl=64 time=6.16 ms wrong data byte #76 should be 0x4c but was 0x4a #16 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f #48 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 47 48 49 4a 4b 4a 4b 4c 4d #80 4e 4f 50 51 52 53 54 55 56 57 58 59 5a 5b 5a 5b 5c 5d 5e 5f 60 61 62 63 64 65 66 67 68 69 6a 6b $ dmesg |fgrep airo airo(): Probing for PCI adapters airo(): cmd:111 status:7f11 rsp0:2 rsp1:0 rsp2:0 airo(): Doing fast bap_reads airo(): WPA is supported. airo(eth0): MAC enabled 00:0d:29:4f:0c:be airo(): Finished probing for PCI adapters airo(eth0): Bad size 8192 it seems that some memcpy or copy loop copies data with an index decremented by 2. Pinging the router: $ sudo ping router -s 128 -i .001 136 bytes from router.openwrt (192.168.1.1): icmp_seq=203 ttl=64 time=2.44 ms wrong data byte #26 should be 0x1a but was 0x18 #16 10 11 12 13 14 15 16 17 18 19 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 28 29 2a 2b #48 2c 2d 2e 2f 30 31 32 33 34 35 36 37 38 39 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 47 48 49 #80 4a 4b 4c 4d 4e 4f 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 64 65 66 67 68 69 #112 6a 6b 6c 6d 6e 6f 70 71 72 73 74 75 76 77 78 79 This happens pinging different hosts, so that's not an issue with the host macbook-luca, (it has an atheros, great card) or "ida", intel 3945ABG (good card): $sudo ping ida -s 128 -i .001 136 bytes from ida.openwrt (192.168.1.10): icmp_seq=69 ttl=128 time=3.59 ms wrong data byte #82 should be 0x52 but was 0x50 #16 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f #48 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f #80 50 51 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d #112 6e 6f 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d $ uname -a Linux raver 2.6.24 #10 SMP PREEMPT Wed Mar 5 13:20:59 CET 2008 x86_64 GNU/Linux Cheers, Matteo -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
