On Dec 5, 2005, at 14:31, Alan DeKok wrote:
Doug Hardie <[EMAIL PROTECTED]> wrote:
I have a primary and backup freeradius server running on different
machines. For the last couple days they have both been receiving a
signal 10 at almost the same time.
Signal 10 is SIGBUS: Bus error. It's usually indicative of bad
memory.
I suspect its a request from somewhere. I am going to enable
tcpdump on the secondary server but am at a loss to figure out how
to get a core dump. I don't see any place in the code where signal
10 is redirected. Any other ideas on how to diagnose this problem?
Thanks.
Use tcpdump to see what packet is causing the problem.
If you're running a version prior to 1.0.5, then upgrade. See
http://www.freeradius.org/security.html for more information.
Well, it finally happened again. This is the packet with the same
timestamp as the signal 10 message. There is no response to it. I
haven't decoded it completely yet, but it appears that the user id is
corrupt. I wonder if something in that field is causing the
problem. I was able to identify the user from the phone number and
that user did successfully connect about 6 times earlier today so I
don't think its a configuration issue but most likely a line issue
(dial-in) causing corruption of the user-id. The NAS is Ascend and I
would have thought it would catch that and not forward junk at us.
23:24:24.340733 IP o1-laxradius1.o1.com.3787 > zook.radius: RADIUS,
Access Request (1), id: 0xad length: 443
0x0000: 00a0 cc3e 87dc 0000 0c38 6fe1 0800 4500 ...>.....
8o...E.
0x0010: 01d7 475c 0000 7011 7767 4251 6787 ce75 ..G
\..p.wgBQg..u
0x0020: 1205 0ecb 066d 01c3 ee22 01ad 01bb
96b0 .....m..."......
0x0030: f002 4858 4ab7 33e4 2f64 8901 ce7f 0194 ..HXJ.3./
d......
0x0040: 2821 522e 616a 2c71 4942 3872 6c76 4148 (!
R.aj,qIB8rlvAH
0x0050: 496b 6576 663a 4b42 5b2e 576b 4476 5434 Ikevf:KB
[.WkDvT4
0x0060: 4a34 6a5e 417c 6147 6b75 4c35 7153 7a6f J4j^A|
aGkuL5qSzo
0x0070: 6c40 5878 3061 6075 2040 3637 6177 3f5f
[EMAIL PROTECTED]@67aw?_
0x0080: 4622 462a 497e 4f36 5661 7570 3f36 7d73
F"F*I~O6Vaup?6}s
0x0090: 4979 4d5b 4078 5428 4569 585a 457b 3345 [EMAIL PROTECTED]
(EiXZE{3E
0x00a0: 5136 2477 3d56 2068 6671 505a 4738 2354 Q6
$w=V.hfqPZG8#T
0x00b0: 2a3f 4f7e 3029 246c 5331 4c70 3d62 5529 *?O~0)
$lS1Lp=bU)
0x00c0: 704e 7e42 512c 6d26 6646 3e24 436e 2965 pN~BQ,m&fF>
$Cn)e
0x00d0: 2e52 0406 4513 db2e 200a 6c61 7861
7078 .R..E.....laxapx
0x00e0: 3038 0506 0000 5a54 1a0c 0000 0211 0d06
08....ZT........
0x00f0: 0000 0003 3d06 0000 0000 0606 0000
0001 ....=...........
0x0100: 1f0c 3831 3839 3939 3936 3432 1a0c 0000 ..
8189999642....
0x0110: 0211 4206 0000 0000 1a0c 0000 0211
4306 ..B...........C.
0x0120: 0000 0000 1e0c 3831 3834 3531 3230 3231 ......
8184512021
0x0130: 2c0b 3436 3430 3430 3339 391a 0c00 0002 ,.
464040399.....
0x0140: 11c5 0600 005d c01a 0c00 0002 11ff
0600 .....]..........
0x0150: 00cb 2002 9228 43cf bc9a 6370 3060 7a0b .....
(C...cp0`z.
0x0160: ad93 4cf2 4390 7d64 46c7 5bca 29c0 1d4c ..L.C.}dF.
[.)..L
0x0170: 815a c49d ac21 c6e8 35c1 2703 ff14 4b6a .Z...!..
5.'...Kj
0x0180: 3b50 3177 8497 9089 b92a 38d1 61ce
42e6 ;P1w.....*8.a.B.
0x0190: e556 d74d 47d6 c1a8 5b90 4c25 63d0 d9ca .V.MG...[.L
%c...
0x01a0: 5ebf 4d49 5de2 adfd baa6 9607 542f bb86
^.MI].......T/..
0x01b0: f138 9922 3179 aa7a 2225 1756 11b5 a87a .
8."1y.z"%.V...z
0x01c0: c40c 2b6e f6f3 c8b7 f084 1fe5 dd60 3231 ..
+n.........`21
0x01d0: aafa 6a7d f4cb b21d 1ebf 1c58 8e33
1d61 ..j}.......X.3.a
0x01e0: 5355 f9be ef SU...
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