mongodump starts to properly create dumps for collections and then crashes, always at the same collection.
Here is the dump:
Tue Aug 28 07:30:26 Assertion: 10320:BSONElement: bad type 117
0xaeb951 0x58d0eb 0x55beab 0xb128ef 0x5635d3 0x566ed0 0x568fd1 0xa34f52 0x5545f2 0x7fa722c25c4d 0x554459 
 mongodump(_ZN5mongo15printStackTraceERSo+0x21) [0xaeb951]
 mongodump(_ZN5mongo11msgassertedEiPKc+0x9b) [0x58d0eb]
 mongodump(_ZNK5mongo11BSONElement4sizeEv+0x1cb) [0x55beab]
 mongodump(_ZNK5mongo7BSONObj10jsonStringENS_16JsonStringFormatEi+0xff) [0xb128ef]
 mongodump(_ZN4Dump17writeMetadataFileESsN5boost11filesystem210basic_pathISsNS1_11path_traitsEEESt3mapISsN5mongo7BSONObjESt4lessISsESaISt4pairIKSsS7_EEESt8multimapISsS7_S9_SD_E+0x363) [0x5635d3]
 mongodump(_ZN4Dump2goESsN5boost11filesystem210basic_pathISsNS1_11path_traitsEEE+0x1e50) [0x566ed0]
 mongodump(_ZN4Dump3runEv+0x1b61) [0x568fd1]
 mongodump(_ZN5mongo4Tool4mainEiPPc+0x1712) [0xa34f52]
 mongodump(main+0x32) [0x5545f2]
 /lib/libc.so.6(__libc_start_main+0xfd) [0x7fa722c25c4d]
 mongodump(__gxx_personality_v0+0x421) [0x554459]
assertion: 10320 BSONElement: bad type 117
The collection contains documents with two ISODate fields and a string field.
- depends on
- 
                    SERVER-7190 Mongodump metadata.json files should be in proper json format -         
- Closed
 
-         
- is duplicated by
- 
                    SERVER-7228 Mongo dump fails with BSONElement: bad type xxx -         
- Closed
 
-