Sadly I'm not sure what I did to trigger this, other than connecting to a game which was in-progress, disconnecting from it and quitting the game. I also don't have a core file (ulimit -c = 0). I do have the DMP file (please let me know if you'd like this analyzed).
$ ./megaglest --connect=127.0.0.1
megaglest v3.8-dev
Compiled using: GNUC: 40702 [64bit] on: Mar 13 2013 22:41:53 platform: Linux-X64 endianness: little
SVN: [Rev: 4186] - using STREFLOP [SSE] - [no-denormals]
Connecting to host [127.0.0.1] using port: 61357
Load game setting unit pos
Client waiting for packet for frame: 1200, copyCachedLastPendingFrameCount = 0
Client waiting for packet FINISHED for frame: 1200, copyCachedLastPendingFrameCount = 1200 waitCount = 1
Resume #1
Client waiting for packet for frame: 1280, copyCachedLastPendingFrameCount = 1260
Client waiting for packet FINISHED for frame: 1280, copyCachedLastPendingFrameCount = 1280 waitCount = 38738
Client waiting for packet for frame: 1360, copyCachedLastPendingFrameCount = 1340
Client waiting for packet FINISHED for frame: 1360, copyCachedLastPendingFrameCount = 1360 waitCount = 88427
Client waiting for packet for frame: 1400, copyCachedLastPendingFrameCount = 1380
Client waiting for packet FINISHED for frame: 1400, copyCachedLastPendingFrameCount = 1400 waitCount = 65825
Client waiting for packet for frame: 1500, copyCachedLastPendingFrameCount = 1480
Client waiting for packet FINISHED for frame: 1500, copyCachedLastPendingFrameCount = 1500 waitCount = 9843
*** buffer overflow detected ***: ./megaglest terminated
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x5c)[0x7f0fdb9d883c]
/lib/x86_64-linux-gnu/libc.so.6(+0x109710)[0x7f0fdb9d7710]
/lib/x86_64-linux-gnu/libc.so.6(+0x10a7ce)[0x7f0fdb9d87ce]
./megaglest(_ZN6Shared8Platform6Socket10isReadableEb+0xb4)[0xa00174]
./megaglest(_ZN6Shared8Platform6Socket11isConnectedEv+0x65)[0xa00f05]
./megaglest(_ZN6Shared8Platform6Socket4sendEPKvi+0x50)[0xa04fb0]
./megaglest(_ZN5Glest4Game14NetworkMessage4sendEPN6Shared8Platform6SocketEPKvi+0xa5)[0x7c9825]
./megaglest(_ZN5Glest4Game25NetworkMessageCommandList4sendEPN6Shared8Platform6SocketE+0x58)[0x7cbc08]
./megaglest(_ZN5Glest4Game15ClientInterface6updateEv+0x131)[0x7e4461]
./megaglest(_ZN5Glest4Game7Program10loopWorkerEv+0x1ba8)[0x6a4438]
./megaglest(_ZN5Glest4Game9glestMainEiPPc+0xb620)[0x686b90]
./megaglest(_ZN5Glest4Game19glestMainSEHWrapperEiPPc+0x76)[0x68ace6]
./megaglest(_ZN5Glest4Game16glestMainWrapperEiPPc+0x8b)[0x68ae5b]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)[0x7f0fdb8ef76d]
./megaglest[0x5106d9]
======= Memory map: ========
00400000-00c3a000 r-xp 00000000 fc:02 12193963 /home/tomreyn/SCM/megaglest-trunk/mk/linux/megaglest
00e3a000-00e3d000 r--p 0083a000 fc:02 12193963 /home/tomreyn/SCM/megaglest-trunk/mk/linux/megaglest
00e3d000-00e40000 rw-p 0083d000 fc:02 12193963 /home/tomreyn/SCM/megaglest-trunk/mk/linux/megaglest
00e40000-00e67000 rw-p 00000000 00:00 0
02d33000-1b0a3000 rw-p 00000000 00:00 0 [heap]
7f0f90000000-7f0f90021000 rw-p 00000000 00:00 0
7f0f90021000-7f0f94000000 ---p 00000000 00:00 0
7f0f94000000-7f0f94058000 rw-p 00000000 00:00 0
7f0f94058000-7f0f98000000 ---p 00000000 00:00 0
7f0f98000000-7f0f98021000 rw-p 00000000 00:00 0
7f0f98021000-7f0f9c000000 ---p 00000000 00:00 0
7f0f9c000000-7f0f9c021000 rw-p 00000000 00:00 0
7f0f9c021000-7f0fa0000000 ---p 00000000 00:00 0
7f0fa0000000-7f0fa0021000 rw-p 00000000 00:00 0
7f0fa0021000-7f0fa4000000 ---p 00000000 00:00 0
7f0fa4000000-7f0fa40b4000 rw-p 00000000 00:00 0
7f0fa40b4000-7f0fa8000000 ---p 00000000 00:00 0
7f0fa8000000-7f0fa8033000 rw-p 00000000 00:00 0
7f0fa8033000-7f0fac000000 ---p 00000000 00:00 0
7f0fac000000-7f0fac021000 rw-p 00000000 00:00 0
7f0fac021000-7f0fb0000000 ---p 00000000 00:00 0
7f0fb37ff000-7f0fb3800000 ---p 00000000 00:00 0
7f0fb3800000-7f0fb4000000 rw-p 00000000 00:00 0 [stack:5881]
7f0fb4000000-7f0fb4021000 rw-p 00000000 00:00 0
7f0fb4021000-7f0fb8000000 ---p 00000000 00:00 0
7f0fb9fe3000-7f0fb9fe4000 ---p 00000000 00:00 0
7f0fb9fe4000-7f0fba7e4000 rw-p 00000000 00:00 0 [stack:5906]
7f0fba7e4000-7f0fba7e5000 ---p 00000000 00:00 0
7f0fba7e5000-7f0fbafe5000 rw-p 00000000 00:00 0 [stack:5905]
7f0fbaffd000-7f0fbaffe000 ---p 00000000 00:00 0
7f0fbaffe000-7f0fbb7fe000 rw-p 00000000 00:00 0
7f0fbb7fe000-7f0fbb7ff000 ---p 00000000 00:00 0
7f0fbb7ff000-7f0fbbfff000 rw-p 00000000 00:00 0 [stack:5882]
7f0fbbfff000-7f0fc0000000 rw-s 00000000 00:14 1042870 /run/shm/pulse-shm-1901940764
7f0fc0000000-7f0fc0021000 rw-p 00000000 00:00 0
7f0fc0021000-7f0fc4000000 ---p 00000000 00:00 0
7f0fc43f2000-7f0fc43f9000 r-xp 00000000 fc:01 661809 /lib/x86_64-linux-gnu/libnss_dns-2.15.so
7f0fc43f9000-7f0fc45f8000 ---p 00007000 fc:01 661809 /lib/x86_64-linux-gnu/libnss_dns-2.15.so
7f0fc45f8000-7f0fc45f9000 r--p 00006000 fc:01 661809 /lib/x86_64-linux-gnu/libnss_dns-2.15.so
7f0fc45f9000-7f0fc45fa000 rw-p 00007000 fc:01 661809 /lib/x86_64-linux-gnu/libnss_dns-2.15.so
7f0fc45fa000-7f0fc45fc000 r-xp 00000000 fc:01 662455 /lib/libnss_mdns4_minimal.so.2
7f0fc45fc000-7f0fc47fb000 ---p 00002000 fc:01 662455 /lib/libnss_mdns4_minimal.so.2
7f0fc47fb000-7f0fc47fc000 r--p 00001000 fc:01 662455 /lib/libnss_mdns4_minimal.so.2
7f0fc47fc000-7f0fc47fd000 rw-p 00002000 fc:01 662455 /lib/libnss_mdns4_minimal.so.2
7f0fc4ffd000-7f0fc4ffe000 ---p 00000000 00:00 0
7f0fc4ffe000-7f0fc57fe000 rw-p 00000000 00:00 0 [stack:5880]
7f0fc57fe000-7f0fc57ff000 ---p 00000000 00:00 0
7f0fc57ff000-7f0fc5fff000 rw-p 00000000 00:00 0 [stack:5879]
7f0fc637b000-7f0fc637c000 ---p 00000000 00:00 0
7f0fc637c000-7f0fc6b7c000 rw-p 00000000 00:00 0
7f0fc6b7c000-7f0fc6b7d000 ---p 00000000 00:00 0
7f0fc6b7d000-7f0fc737d000 rw-p 00000000 00:00 0 [stack:5908]
7f0fc737d000-7f0fc737e000 ---p 00000000 00:00 0
7f0fc737e000-7f0fc7b7e000 rw-p 00000000 00:00 0 [stack:5907]
7f0fc7bfe000-7f0fc7d54000 rw-s 123252000 00:05 7341 /dev/dri/card0
7f0fc7d54000-7f0fc7eaa000 rw-s 12999e000 00:05 7341 /dev/dri/card0
7f0fc7eaa000-7f0fc8000000 rw-s 1230a6000 00:05 7341 /dev/dri/card0
7f0fc8000000-7f0fc8021000 rw-p 00000000 00:00 0
7f0fc8021000-7f0fcc000000 ---p 00000000 00:00 0
7f0fcc056000-7f0fcc062000 r-xp 00000000 fc:01 659494 /lib/x86_64-linux-gnu/libnss_files-2.15.so
7f0fcc062000-7f0fcc261000 ---p 0000c000 fc:01 659494 /lib/x86_64-linux-gnu/libnss_files-2.15.so
7f0fcc261000-7f0fcc262000 r--p 0000b000 fc:01 659494 /lib/x86_64-linux-gnu/libnss_files-2.15.so
7f0fcc262000-7f0fcc263000 rw-p 0000c000 fc:01 659494 /lib/x86_64-linux-gnu/libnss_files-2.15.so
7f0fcc2ad000-7f0fcc3ad000 rw-s 1316d2000 00:05 7341 /dev/dri/card0
7f0fcc3ad000-7f0fcc403000 rw-s 1233fe000 00:05 7341 /dev/dri/card0
7f0fcc40c000-7f0fcc462000 rw-s 1233a8000 00:05 7341 /dev/dri/card0
7f0fcc462000-7f0fcc4b8000 rw-s 12b72b000 00:05 7341 /dev/dri/card0
7f0fcc503000-7f0fcc559000 rw-s 12b7d7000 00:05 7341 /dev/dri/card0
7f0fcc559000-7f0fcc5af000 rw-s 12974d000 00:05 7341 /dev/dri/card0
7f0fcc661000-7f0fcc6b7000 rw-s 129948000 00:05 7341 /dev/dri/card0
7f0fcc6d8000-7f0fcc6d9000 rw-s 120dd1000 00:05 7341 /dev/dri/card0
7f0fcc707000-7f0fcc75d000 rw-s 12b82d000 00:05 7341 /dev/dri/card0
7f0fcc75d000-7f0fcc85d000 rw-s 115dbc000 00:05 7341 /dev/dri/card0
======= In MinidumpCallback...
***ERROR details captured:
Crash minidump folder: /home/tomreyn/.megaglest/
file: /home/tomreyn/.megaglest//727edd40-d051-1454-47b6b3c6-707a6a32.dmp
Succeeded: 1
******************************************************
An unhandled error was detected.
A crash dump file has been created in the folder:
/home/tomreyn/.megaglest/
Crash dump filename is: /home/tomreyn/.megaglest//727edd40-d051-1454-47b6b3c6-707a6a32.dmp
******************************************************
