The Opterons are 64 bit, right? So the size of u_long (typedef unsigned
long) depends on the processor. u_int32_t is a 32bit unsigned integer
across all platforms. And thus the u_int32_t change makes a lot of sense.
Similarly, the definition of u_int (idx) is also OS dependent.
unsigned short computeIdx(HostAddr *srcAddr, HostAddr *dstAddr, int sport,
int dport) {}
so there's an implicit conversion there. W/o a 64bit Operton I can't say
more, but I'd be interested in the value of idx at that point. Maybe add
some traceEvent() calls after:
idx = computeIdx(&srcHost->hostIpAddress,&dstHost->hostIpAddress, sport,
dport);
traceEvent(CONST_TRACE_INFO, "computeIdx() = %u (%x)", idx, idx);
And again at the failure point...
traceEvent(CONST_TRACE_INFO, "myGlobals.device[%d].tcpSession[%d]=",
actualDeviceId, idx);
traceEvent(CONST_TRACE_INFO, "%d",
myGlobals.device[actualDeviceId].tcpSession[idx]);
prevSession = theSession =
myGlobals.device[actualDeviceId].tcpSession[idx];
Could also be the computeIdx() routine itself:
unsigned short computeIdx(HostAddr *srcAddr, HostAddr *dstAddr, int sport,
int dport) {
unsigned short idx;
if (srcAddr->hostFamily != dstAddr->hostFamily)
return -1;
switch (srcAddr->hostFamily){
case AF_INET:
/*
* The hash key has to be calculated in a specular
* way: its value has to be the same regardless
* of the flow direction.
*
* Patch on the line below courtesy of
* Paul Chapman <[EMAIL PROTECTED]>
*/
idx =
(u_int)(dstAddr->Ip4Address.s_addr+srcAddr->Ip4Address.s_addr+sport+dport) ;
break;
#ifdef INET6
case AF_INET6:
idx = (u_int)(dstAddr->Ip6Address.s6_addr[0] +
dstAddr->Ip6Address.s6_addr[0] +
srcAddr->Ip6Address.s6_addr[0] +
srcAddr->Ip6Address.s6_addr[0] + sport +! dport);
break;
#endif
}
return idx;
}
which doesn't like the 64bit... How wide is unsigned short? You could try
replacing it with the explicit type here so it does the 'right' (expected)
truncation.
-----Burton
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of
> Bret Jordan
> Sent: Monday, July 26, 2004 5:29 PM
> To: [EMAIL PROTECTED]
> Subject: [Ntop] sflow - update
>
>
> Okay I have been playing around with this some more and running ntop
> through gdb and found that if I do the following I can get sflow to work
> on my Opterons with a 2.6.5 kernel.
>
> 1) Edit the sflowplugin.c file and change all "u_long" references to
> "u_int32_t"
> 2) Do NOT use a "-m" option to define local subnets .
>
> IIf you use the -m option to define local subnets it WILL segfault.
> Below you will find the output (STDOUT and a list and bt from gdb) from
> the segfault.
>
> Bret
>
> Wed Jul 21 12:15:46 2004 SFLOW: Collector listening on port 6343
> Wed Jul 21 12:15:46 2004 Creating dummy interface, 'sFlow-device'
> Wed Jul 21 12:15:46 2004 THREADMGMT: sFlow thread (1092614512) started...
> [New Thread 1092614512 (LWP 17049)]
>
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 1092614512 (LWP 17049)]
> 0x0000002a958178e3 in handleSession (h=Variable "h" is not available.
> ) at sessions.c:637
> 637 prevSession = theSession =
> myGlobals.device[actualDeviceId].tcpSession[idx];
>
>
> (gdb) list
> 632
> 633 #ifdef CFG_MULTITHREADED
> 634 accessMutex(&myGlobals.tcpSessionsMutex, "handleSession");
> 635 #endif
> 636
> 637 prevSession = theSession =
> myGlobals.device[actualDeviceId].tcpSession[idx];
> 638
> 639 while(theSession != NULL) {
> 640 if(theSession && (theSession->next == theSession)) {
> 641 traceEvent(CONST_TRACE_WARNING, "Internal Error (4)
> (idx=%d)", idx);
>
>
> (gdb) bt
> #0 0x0000002a958178e3 in handleSession (h=Variable "h" is not available.
> ) at sessions.c:637
> #1 0x0000002a9580e3b1 in processIpPkt (bp=Variable "bp" is not available.
> ) at pbuf.c:1358
> #2 0x0000002a9581050f in processPacket (_deviceId=Variable "_deviceId"
> is not available.
> ) at pbuf.c:3160
> #3 0x0000002a9581298e in queuePacket (_deviceId=Variable "_deviceId" is
> not available.
> ) at pbuf.c:2108
> #4 0x0000002a98c5efd2 in receiveSflowSample (sample=Variable "sample"
> is not available.
> ) at sflowPlugin.c:940
> #5 0x0000002a98c5f112 in sFlowMainLoop (notUsed=Variable "notUsed" is
> not available.
> ) at sflowPlugin.c:1839
> #6 0x0000002a9697e8e2 in start_thread () from /lib64/tls/libpthread.so.0
> #7 0x0000002a96ea84d3 in thread_start () from /lib64/tls/libc.so.6
> #8 0x0000000000000000 in ?? ()
> #9 0x0000000000000000 in ?? ()
> #10 0x0000000000000000 in ?? ()
> #11 0x0000000000000000 in ?? ()
> #12 0x0000000000000000 in ?? ()
> #13 0x0000000000000000 in ?? ()
> #14 0x0000000000000000 in ?? ()
> #15 0x0000000000000000 in ?? ()
> #16 0x0000000000000000 in ?? ()
> #17 0x0000000000000000 in ?? ()
> #18 0x0000000000000000 in ?? ()
> #19 0x0000000000000000 in ?? ()
> #20 0x0000002a96ff55e0 in _nl_C_locobj () from /lib64/tls/libc.so.6
> #21 0x00000000411ffdc8 in ?? ()
> #22 0x0000000000000000 in ?? ()
> #23 0x0000000000000000 in ?? ()
> #24 0x0000000000000000 in ?? ()
> #25 0x0000000000000000 in ?? ()
> #26 0x0000002a9700d4a0 in __malloc_initialize_hook () from
> /lib64/tls/libc.so.6
> #27 0x0000000000000000 in ?? ()
> #28 0x0000000000000000 in ?? ()
> #29 0x0000000000000000 in ?? ()
> #30 0x00000000411ff970 in ?? ()
> #31 0x0000000000b39f48 in ?? ()
> #32 0x00000000411ff970 in ?? ()
> #33 0x0000000000000001 in ?? ()
> #34 0x0000000000000000 in ?? ()
> #35 0x0000000000000000 in ?? ()
> #36 0x0000000000000000 in ?? ()
> #37 0x0000000000000000 in ?? ()
> #38 0x0000000000000000 in ?? ()
> #39 0x0000000000000000 in ?? ()
> ---Type <return> to continue, or q <return> to quit---
> #40 0x0000000000000000 in ?? ()
> #41 0x0000000000000000 in ?? ()
> #42 0x0000000000000000 in ?? ()
> #43 0x0000000000000000 in ?? ()
> #44 0x0000000000000000 in ?? ()
> #45 0x0000000000000000 in ?? ()
> #46 0x0000000040fff9f0 in ?? ()
> #47 0x0000002a96a861d0 in stack_cache_maxsize () from
> /lib64/tls/libpthread.so.0
> #48 0x00003aae00004299 in ?? ()
> #49 0x0000000000000000 in ?? ()
> #50 0x00000000411ff810 in ?? ()
> #51 0x0000000000000000 in ?? ()
> #52 0x0000000000000000 in ?? ()
> #53 0x0000000000000000 in ?? ()
> #54 0x0000000000000000 in ?? ()
> #55 0x0000000000000000 in ?? ()
> #56 0x0000000000000000 in ?? ()
> #57 0x0000000000000000 in ?? ()
> #58 0x0000000000000000 in ?? ()
> #59 0x0000000000000000 in ?? ()
> #60 0x0000000000000000 in ?? ()
> #61 0x0000000000000000 in ?? ()
> #62 0x0000000000000000 in ?? ()
> #63 0x0000000000000000 in ?? ()
> #64 0x0000000000000000 in ?? ()
> #65 0x0000000000000000 in ?? ()
> #66 0x0000000000000000 in ?? ()
> #67 0x0000000000000000 in ?? ()
> #68 0x0000000000000000 in ?? ()
> #69 0x0000000000000000 in ?? ()
> #70 0x0000000000000000 in ?? ()
> #71 0x0000000000000000 in ?? ()
> #72 0x0000000000000000 in ?? ()
> #73 0x0000000000000000 in ?? ()
> #74 0x0000000000000000 in ?? ()
> #75 0x0000000000000000 in ?? ()
> #76 0x0000000000000000 in ?? ()
> #77 0x0000000000000000 in ?? ()
> #78 0x0000000000000000 in ?? ()
> #79 0x0000000000000000 in ?? ()
> ---Type <return> to continue, or q <return> to quit---
> #80 0x0000000000000000 in ?? ()
> #81 0x0000000000000000 in ?? ()
> #82 0x0000000000000000 in ?? ()
> #83 0x0000000000000000 in ?? ()
> #84 0x0000000000000000 in ?? ()
> #85 0x0000000000000000 in ?? ()
> #86 0x0000000000000000 in ?? ()
> #87 0x0000000000000000 in ?? ()
> #88 0x0000000000000000 in ?? ()
> #89 0x0000000000000000 in ?? ()
> #90 0x0000000000000000 in ?? ()
> #91 0x0000000000000000 in ?? ()
> #92 0x0000000000000000 in ?? ()
> #93 0x0000000000000000 in ?? ()
> #94 0x0000000000000000 in ?? ()
> #95 0x0000000000000000 in ?? ()
> #96 0x0000000000000000 in ?? ()
> #97 0x0000000000000000 in ?? ()
> #98 0x0000000000000000 in ?? ()
> #99 0x0000000000000000 in ?? ()
> #100 0x0000000000000000 in ?? ()
> #101 0x0000000000000000 in ?? ()
> #102 0x0000000000000000 in ?? ()
> #103 0x0000000000000000 in ?? ()
> #104 0x0000000000000000 in ?? ()
> #105 0x0000000000000000 in ?? ()
> #106 0x0000000000000000 in ?? ()
> #107 0x0000000000000000 in ?? ()
> #108 0x0000000000000000 in ?? ()
> #109 0x0000000000000000 in ?? ()
> #110 0x0000000000000000 in ?? ()
> #111 0x0000000000000000 in ?? ()
> #112 0x0000000000000000 in ?? ()
> #113 0x0000000000000000 in ?? ()
> #114 0x0000000000000000 in ?? ()
> #115 0x0000000000000000 in ?? ()
> #116 0x0000000000000000 in ?? ()
> #117 0x00000000411ffa20 in ?? ()
> #118 0x0000000000000000 in ?? ()
> #119 0x0000000000000000 in ?? ()
> ---Type <return> to continue, or q <return> to quit---
> #120 0x0000000000000000 in ?? ()
> #121 0x0000000000000000 in ?? ()
> #122 0x0000000000000000 in ?? ()
> #123 0x0000000000000000 in ?? ()
> #124 0x0000000000000000 in ?? ()
> #125 0x0000000000000000 in ?? ()
> #126 0x0000000000000000 in ?? ()
> #127 0x0000000000000000 in ?? ()
> #128 0x0000000000000000 in ?? ()
> #129 0x0000000000000000 in ?? ()
> #130 0x0000000000000000 in ?? ()
> #131 0x0000000000000000 in ?? ()
> #132 0x0000000000000000 in ?? ()
> #133 0x0000000000000000 in ?? ()
> #134 0x0000000000000000 in ?? ()
> #135 0x0000000000000000 in ?? ()
> #136 0x0000000000000000 in ?? ()
> #137 0x0000000000000000 in ?? ()
> #138 0x0000000000000000 in ?? ()
> #139 0x0000000000000000 in ?? ()
> #140 0x0000000000000000 in ?? ()
> #141 0x0000000000000000 in ?? ()
> #142 0x0000000000000000 in ?? ()
> #143 0x0000000000000000 in ?? ()
> #144 0x0000000000000000 in ?? ()
> #145 0x0000000000000000 in ?? ()
> #146 0x0000000000000000 in ?? ()
> #147 0x0000000000000000 in ?? ()
> #148 0x0000000000000000 in ?? ()
> #149 0x0000000000000001 in ?? ()
> #150 0x0003cfc929ead38f in ?? ()
> #151 0x0000000000000000 in ?? ()
> #152 0x0000000000000000 in ?? ()
> #153 0x0000000000000000 in ?? ()
> #154 0x0000000000000000 in ?? ()
> #155 0x0000002a98c5eff0 in receiveSflowSample () at sflowPlugin.c:925
> #156 0x0000000000000000 in ?? ()
> #157 0x0000000000000000 in ?? ()
> #158 0x0000000000000000 in ?? ()
> #159 0x0000000000000000 in ?? ()
> ---Type <return> to continue, or q <return> to quit---
> #160 0x0000000000000000 in ?? ()
> #161 0x0000000000000000 in ?? ()
> #162 0x0000000000000000 in ?? ()
> #163 0x0000000000000000 in ?? ()
> #164 0x0000000000000000 in ?? ()
> #165 0x0000000000000000 in ?? ()
> #166 0x0000000041000000 in ?? ()
> #167 0x0000000000200000 in ?? ()
> #168 0x0000000000001000 in ?? ()
> #169 0x0000000000000000 in ?? ()
> #170 0x0000000000000000 in ?? ()
> #171 0x0000000000000000 in ?? ()
> #172 0x0000000000000000 in ?? ()
> #173 0x0000000000000000 in ?? ()
> #174 0x0000000000000000 in ?? ()
> #175 0x0000000000000000 in ?? ()
> #176 0x0000000000000000 in ?? ()
> #177 0x0000000000000000 in ?? ()
> #178 0x0000000000000000 in ?? ()
> #179 0x0000000000000000 in ?? ()
> #180 0x0000000000000000 in ?? ()
> #181 0x0000000000000000 in ?? ()
> #182 0x0000000000000000 in ?? ()
> #183 0x0000000000000000 in ?? ()
> #184 0x0000000000000000 in ?? ()
> #185 0x0000000000000000 in ?? ()
> #186 0x0000000000000000 in ?? ()
> #187 0x0000000000000000 in ?? ()
> #188 0x0000000000000000 in ?? ()
> #189 0x0000000000000000 in ?? ()
> #190 0x0000000000000000 in ?? ()
> #191 0x0000000000000000 in ?? ()
> #192 0x0000000000000000 in ?? ()
> #193 0x0000000000000000 in ?? ()
> #194 0x0000000000000000 in ?? ()
> #195 0x0000000000000000 in ?? ()
> #196 0x0000000000000000 in ?? ()
> #197 0x0000000000000000 in ?? ()
> #198 0x0000000000000000 in ?? ()
> #199 0x0000000000000000 in ?? ()
> ---Type <return> to continue, or q <return> to quit---
> #200 0x0000000000000000 in ?? ()
> #201 0x0000000000000000 in ?? ()
> #202 0x0000000000000000 in ?? ()
> #203 0x0000000000000000 in ?? ()
> #204 0x0000000000000000 in ?? ()
> #205 0x0000000000000000 in ?? ()
> #206 0x0000000000000000 in ?? ()
> #207 0x0000000000000000 in ?? ()
> #208 0x0000000000000000 in ?? ()
> #209 0x0000000000000000 in ?? ()
> #210 0x0000000000000000 in ?? ()
> #211 0x0000000000000000 in ?? ()
> #212 0x0000000000000000 in ?? ()
> #213 0x0000000000000000 in ?? ()
> #214 0x0000000000000000 in ?? ()
> #215 0x0000000000000000 in ?? ()
> #216 0x0000000000000000 in ?? ()
> #217 0x0000000000000000 in ?? ()
> #218 0x0000000000000000 in ?? ()
> #219 0x0000000000000000 in ?? ()
> #220 0x0000000000000000 in ?? ()
> #221 0x0000000000000000 in ?? ()
> #222 0x0000000000000000 in ?? ()
> #223 0x0000000000000000 in ?? ()
> #224 0x0000000000000000 in ?? ()
> #225 0x0000000000000000 in ?? ()
> #226 0x0000000000000000 in ?? ()
> #227 0x0000000000000000 in ?? ()
> #228 0x0000000000000000 in ?? ()
> #229 0x0000000000000000 in ?? ()
> #230 0x0000000000000000 in ?? ()
> #231 0x0000000000000000 in ?? ()
> #232 0x0000000000000000 in ?? ()
> #233 0x0000000000000000 in ?? ()
> #234 0x0000000000000000 in ?? ()
> #235 0x0000000000000000 in ?? ()
> #236 0x0000000000000000 in ?? ()
> #237 0x0000000000000000 in ?? ()
> #238 0x0000000000000000 in ?? ()
> #239 0x0000000000000000 in ?? ()
> Cannot access memory at address 0x41200000
>
>
>
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Bret Jordan Dean's Office
> Director of Networking College of Engineering
> 801.585.3765 University of Utah
> [EMAIL PROTECTED]
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
> _______________________________________________
> Ntop mailing list
> [EMAIL PROTECTED]
> http://listgateway.unipi.it/mailman/listinfo/ntop
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