Mon Jul 16 22:34:14 [conn36] CMD: drop test.jstests_slowNightly_explain1
Mon Jul 16 22:34:14 Got signal: 11 (Segmentation fault).
Mon Jul 16 22:34:14 Invalid access at address: 0xffffffff4d2c14ff from thread: conn37
0x8cd193 0x868f3b 0x86913d 0x7fe17be83b40 0x7fe17b1c1664 0x7fe17b1c4e82 0x7fe17b1c7952 0x7fe17b1c7eb0 0x86af19 0x86b027 0x879b6d 0x8766da 0x873780 0x86d1e7 0x86d256 0xbd19f1 0x952be9 0x953e79 0x955ed2 0xa69ee8 
 /home/yellow/buildslave/Linux_64bit_DEBUG/mongo/mongod(_ZN5mongo15printStackTraceERSo+0x27) [0x8cd193]
 /home/yellow/buildslave/Linux_64bit_DEBUG/mongo/mongod(_ZN5mongo10abruptQuitEi+0x130) [0x868f3b]
 /home/yellow/buildslave/Linux_64bit_DEBUG/mongo/mongod(_ZN5mongo24abruptQuitWithAddrSignalEiP7siginfoPv+0x171) [0x86913d]
Mon Jul 16 22:34:14 Backtrace:
 /lib/libc.so.6(+0x77664) [0x7fe17b1c1664]
 /lib/libc.so.6(+0x7ae82) [0x7fe17b1c4e82]
 /lib/libc.so.6(+0x7d952) [0x7fe17b1c7952]
 /lib/libc.so.6(realloc+0xf0) [0x7fe17b1c7eb0]
 /home/yellow/buildslave/Linux_64bit_DEBUG/mongo/mongod(_ZN5mongo10ourreallocEPvm+0x23) [0x86af19]
 /home/yellow/buildslave/Linux_64bit_DEBUG/mongo/mongod(_ZN5mongo16TrivialAllocator7ReallocEPvm+0x27) [0x86b027]
 /home/yellow/buildslave/Linux_64bit_DEBUG/mongo/mongod(_ZN5mongo11_BufBuilderINS_16TrivialAllocatorEE15grow_reallocateEv+0x127) [0x879b6d]
 /home/yellow/buildslave/Linux_64bit_DEBUG/mongo/mongod(_ZN5mongo11_BufBuilderINS_16TrivialAllocatorEE4growEi+0x4a) [0x8766da]
 /home/yellow/buildslave/Linux_64bit_DEBUG/mongo/mongod(_ZN5mongo11_BufBuilderINS_16TrivialAllocatorEE9appendNumEi+0x20) [0x873780]
 /home/yellow/buildslave/Linux_64bit_DEBUG/mongo/mongod(_ZN5mongo14BSONObjBuilder6appendERKNS_10StringDataEPKci+0x5d) [0x86d1e7]
 /home/yellow/buildslave/Linux_64bit_DEBUG/mongo/mongod(_ZN5mongo14BSONObjBuilder6appendERKNS_10StringDataERKSs+0x4c) [0x86d256]
 /home/yellow/buildslave/Linux_64bit_DEBUG/mongo/mongod(_ZNK5mongo16ExplainQueryInfo4bsonEv+0x4fd) [0xbd19f1]
 /home/yellow/buildslave/Linux_64bit_DEBUG/mongo/mongod(_ZN5mongo20QueryResponseBuilder7handoffERNS_7MessageE+0xc7) [0x952be9]
 /home/yellow/buildslave/Linux_64bit_DEBUG/mongo/mongod(_ZN5mongo23queryWithQueryOptimizerEiRKSsRKNS_7BSONObjERNS_5CurOpES4_S4_RKN5boost10shared_ptrINS_11ParsedQueryEEES4_RKNS_17ShardChunkVersionERNS7_10scoped_ptrINS_25PageFaultRetryableSectionEEERNSG_INS_19NoPageFaultsAllowedEEERNS_7MessageE+0x9bf) [0x953e79]
 /home/yellow/buildslave/Linux_64bit_DEBUG/mongo/mongod(_ZN5mongo8runQueryERNS_7MessageERNS_12QueryMessageERNS_5CurOpES1_+0x1186) [0x955ed2]
 /home/yellow/buildslave/Linux_64bit_DEBUG/mongo/mongod() [0xa69ee8]
 /lib/libpthread.so.0(+0xfb40) [0x7fe17be83b40]