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Allen Wittenauer updated MAPREDUCE-3914: ---------------------------------------- Assignee: Joe Mudd (was: Charles Earl) > Mismatched free() / delete / delete [] in HadoopPipes > ----------------------------------------------------- > > Key: MAPREDUCE-3914 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-3914 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: pipes > Affects Versions: 0.20.205.0, 0.23.0, 1.0.0 > Environment: Based upon map reduce pipes task executed on Ubuntu 11.10 > Reporter: Charles Earl > Assignee: Joe Mudd > Labels: BB2015-05-TBR > Attachments: MAPREDUCE-3914-branch-0.23.patch, > MAPREDUCE-3914-branch-1.0.patch, MAPREDUCE-3914.patch > > Original Estimate: 1h > Remaining Estimate: 1h > > When running valgrind on a simple MapReduce pipes job, valgrind identifies a > mismatched new / delete: > ==20394== Mismatched free() / delete / delete [] > ==20394== at 0x4C27FF2: operator delete(void*) (vg_replace_malloc.c:387) > ==20394== by 0x4328A5: HadoopPipes::runTask(HadoopPipes::Factory const&) > (HadoopPipes.cc:1171) > ==20394== by 0x424C33: main (ProcessRow.cpp:118) > ==20394== Address 0x9c5b540 is 0 bytes inside a block of size 131,072 alloc'd > ==20394== at 0x4C2864B: operator new[](unsigned long) > (vg_replace_malloc.c:305) > ==20394== by 0x431E5D: HadoopPipes::runTask(HadoopPipes::Factory const&) > (HadoopPipes.cc:1121) > ==20394== by 0x424C33: main (ProcessRow.cpp:118) > ==20394== > ==20394== Mismatched free() / delete / delete [] > ==20394== at 0x4C27FF2: operator delete(void*) (vg_replace_malloc.c:387) > ==20394== by 0x4328AF: HadoopPipes::runTask(HadoopPipes::Factory const&) > (HadoopPipes.cc:1172) > ==20394== by 0x424C33: main (ProcessRow.cpp:118) > ==20394== Address 0x9c7b580 is 0 bytes inside a block of size 131,072 alloc'd > ==20394== at 0x4C2864B: operator new[](unsigned long) > (vg_replace_malloc.c:305) > ==20394== by 0x431E6A: HadoopPipes::runTask(HadoopPipes::Factory const&) > (HadoopPipes.cc:1122) > ==20394== by 0x424C33: main (ProcessRow.cpp:118) > The new [] calls in Lines 1121 and 1122 of HadoopPipes.cc: > bufin = new char[bufsize]; > bufout = new char[bufsize]; > should have matching delete [] calls but are instead bracketed my delete on > lines 1171 and 1172: > delete bufin; > delete bufout; > So these should be replaced by delete[] -- This message was sent by Atlassian JIRA (v6.3.4#6332)