Thanks a lot! Here is what I see;
GNU gdb (GDB) Red Hat Enterprise Linux (7.2-64.el65.2) warning: exec file is newer than core file. 1375 mdst.data[sh .. sh + 4] = toBsonData(cast(uint)(mdst.data.length - sh))[]; Thanks again for your help!
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Reading symbols from /home/centos/mq/mq...done.
[New Thread 31660]
[New Thread 31659]
[New Thread 31661]
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
Core was generated by `./mq'.
Program terminated with signal 11, Segmentation fault.
#0 0x00000000007d0c98 in vibe.data.bson.BsonSerializer.endWriteDictionary!(CMD).endWriteDictionary (this=0x6852bf)
at ../../../root/.dub/packages/vibe-d-0.7.21-rc.2/source/vibe/data/bson.d:1375
Missing separate debuginfos, use: debuginfo-install glibc-2.12-1.132.el65.4.x8664
