[Trac #1102] mesh routing/forwarding seizes after a few hours
Zarro Boogs per Child
bugtracker at laptop.org
Sun Mar 18 03:52:55 EDT 2007
#1102: mesh routing/forwarding seizes after a few hours
----------------------+-----------------------------------------------------
Reporter: mbletsas | Owner: blizzard
Type: defect | Status: new
Priority: normal | Milestone: Untriaged
Component: distro | Keywords:
----------------------+-----------------------------------------------------
I have noticed this behavior on a couple of nodes in my 17-node testbed
with firmware-version: 5.220.9.p254
After a few (8+) hours, forwarding seems to become inoperable.
mshy16 can't ping any other node in the testbed. Reseting the fwt table
doesn't bring it back.
Its radio seems to be in the correct mode:
{{{
msh0 MRVL-USB8388 ESSID:"olpc-mesh-1.24.34" Nickname:""
Mode:Ad-Hoc Frequency:2.462 GHz Cell: 02:2E:5E:D5:B6:A1
Bit Rate:11 Mb/s Tx-Power=18 dBm
Retry limit:8 RTS thr=2347 B Fragment thr=2346 B
Encryption key:off
Power Management:off
Link Quality=100/100 Signal level=-2 dBm Noise level=-2 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:9938538
Tx excessive retries:89216 Invalid misc:223773 Missed
beacon:0
}}}
fwt_list shows (although I am probably not querying correctly with the
current driver):
[root at mshy16 ~]# ./fwt_list.sh msh0
da ra metr dir ssn dsn hop
ttl expiration sle snr
01:00:17:c4:02:2f 00:00:17:c4:02:30 10496 7 38680849 0 0
12 2874673154 15 3342347
01:00:17:c4:02:2f 01:00:17:c4:02:33 6656 7 149819186 38680320
0 12 2198994946 15 3538955
01:00:17:c4:02:30 00:00:17:c4:02:30 3328 16 103952 0 0
12 81660161 13 4259851
01:00:17:c4:02:30 01:00:17:c4:02:34 13824 16 19335 100096 0
12 525729795 114 2555908
01:00:17:c4:02:30 00:00:17:c4:02:30 3328 17 17425 0 0
12 3998746881 13 3342347
01:00:17:c4:01:19 00:00:17:c4:02:34 6656 42 149822855 0 0
12 3381921794 15 2555915
01:00:17:c4:01:19 01:00:17:c4:01:19 7168 42 66496042 149815040
0 10 1041629185 15 4325387
01:00:17:c4:02:33 00:00:17:c4:02:33 7168 50 34098 0 0
12 800852225 14 3538955
01:00:17:c4:02:33 01:00:17:c4:02:33 3328 50 3634 18944 0
12 745668609 2 3538944
01:00:17:c4:01:19 01:00:17:c4:01:19 11776 67 21059 143872 0
12 573308929 160 5636103
01:00:17:c4:01:19 00:00:17:c4:01:18 13824 67 146312 0 0
12 2909144835 14 3604491
01:00:17:c4:02:2f 00:00:17:c4:02:2f 3328 101 750949 0 0
12 3566864641 13 2490379
01:00:17:c4:02:2f 01:00:17:c4:02:2f 3328 101 115301 740096 0
12 1974992897 112 2490375
01:00:17:c4:02:33 00:00:17:c4:02:33 3328 111 48751 0 0
12 3780249857 12 2686987
01:00:17:c4:02:33 01:00:17:c4:02:33 3328 111 53359 20736 0
12 3761242113 86 2686983
01:00:17:c4:01:19 00:00:17:c4:02:2f 9984 133 20473189 0 0
12 3174827779 15 2490379
01:00:17:c4:01:19 01:00:17:c4:02:33 7168 133 75264623 19937024 0
12 977010689 117 2686986
01:00:17:c4:02:34 00:00:17:c4:02:34 3328 135 32135 0 0
12 3296594177 12 2555915
01:00:17:c4:01:18 00:00:17:c4:01:18 3328 136 11685768 0 0
12 3442215169 15 3604491
01:00:17:c4:01:18 01:00:17:c4:01:18 3328 136 149808264 11681792
0 12 3681157121 14 3604491
01:00:17:c4:02:30 00:00:17:c4:02:30 3328 146 36428690 0 0
12 3357018369 15 3538955
01:00:17:c4:02:30 01:00:17:c4:02:30 3328 146 66499730 36428800 0
12 3358982145 15 3538955
01:00:17:c4:02:32 00:00:17:c4:02:31 6656 164 19918 0 0
12 854198274 238 3145731
01:00:17:c4:02:32 01:00:17:c4:02:32 3328 164 26788 19200 0
12 803078145 238 4063235
01:00:17:c4:02:2f 00:00:17:c4:02:2f 3328 175 76313519 0 0
12 3968469249 15 3080203
01:00:17:c4:02:2f 01:00:17:c4:02:2f 3328 175 20466607 76299264 0
12 3606183937 13 3080203
01:00:17:c4:02:31 00:00:17:c4:02:31 3328 206 66500814 0 0
12 4019587329 15 3080203
01:00:17:c4:02:31 01:00:17:c4:02:31 3328 206 149804494 66492160
0 12 2618163201 14 3080203
01:00:17:c4:02:2d 00:00:17:c4:02:2f 6656 238 33061477 0 0
12 3724019714 15 2424843
01:00:17:c4:02:2d 01:00:17:c4:02:2d 7680 238 137150958 30507008
0 10 1536032768 14 4784136
01:00:17:c4:02:2e 01:00:17:c4:02:2e 3328 254 20734 228608 0
12 3927834625 41 4980741
01:00:17:c4:02:2e 00:00:17:c4:00:cf 9984 254 234036 0 0
12 93062915 14 4128779
[root at mshy16 ~]# ethtool -S msh0
NIC statistics:
drop_duplicate_bcast: 772713
drop_ttl_zero: 2378
drop_no_fwd_route: 252
drop_no_buffers: 11
fwded_unicast_cnt: 259355
fwded_bcast_cnt: 75238
drop_blind_table: 0
--
Ticket URL: <http://dev.laptop.org/ticket/1102>
One Laptop Per Child <http://laptop.org/>
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