Looks like memory leak

[Pixmap]

Hi!

I've started bench.js, but for 200 000 000 iterations and application has crashed with out of memory error.
I've tested on Win7 x64, node 4.2.2, csv-write-stream 2.0.0

<--- Last few GCs --->

8867 ms: Scavenge 1401.9 (1456.4) -> 1401.9 (1456.4) MB, 3.5 / 0 ms (+ 8.0 m

s in 1 steps since last GC) [allocation failure] [incremental marking delaying m
ark-sweep].
9786 ms: Mark-sweep 1401.9 (1456.4) -> 1401.9 (1456.4) MB, 919.0 / 0 ms (+ 2
10.0 ms in 1914 steps since start of marking, biggest step 8.0 ms) [last resort
gc].
10698 ms: Mark-sweep 1401.9 (1456.4) -> 1401.9 (1456.4) MB, 912.0 / 0 ms [las
t resort gc].

<--- JS stacktrace --->

==== JS stack trace =========================================

Security context: 00000152EE9373A9
1: nextTick [node.js:~477] [pc=00000287435F95FE](this=00000152EE9B7CF1 <a p
rocess with map 000000E0F701AB51>,callback=00000190EDC954B9 <JS Function afterWr
ite %28SharedFunctionInfo 000003AB8B1B4891%29)
2: arguments adaptor frame: 5->1
3: onwrite(aka onwrite) [_stream_writable.js:~314] [pc=00000287435E7C1E] (th
is=00000152EE904131 ,stream=00000190EDCC8619 ,er=000...

FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - process out of memory

[Pixmap]

Probably it related with nodejs/node#7191

[ErosZy]

uh...in my mac, it leaks too, maybe something wrong in codes

[joelanman]

I'm getting JavaScript heap out of memory

<--- Last few GCs --->

   45611 ms: Mark-sweep 1381.2 (1435.0) -> 1381.0 (1435.0) MB, 1271.7 / 0.0 ms [allocation failure] [GC in old space requested].
   47124 ms: Mark-sweep 1381.0 (1435.0) -> 1381.0 (1419.0) MB, 1512.6 / 0.0 ms [last resort gc].
   48361 ms: Mark-sweep 1381.0 (1419.0) -> 1381.0 (1419.0) MB, 1236.4 / 0.0 ms [last resort gc].


<--- JS stacktrace --->

==== JS stack trace =========================================

Security context: 0x14f515ecfb39 <JS Object>
    1: exec [native regexp.js:~116] [pc=0x3651438c8e27] (this=0x3c5a8502ed39 <JS RegExp>,D=0x9a6905b82c9 <String[19]: Hmrc Manual Section>)
    2: test [native regexp.js:~260] [pc=0x36514389bf41] (this=0x3c5a8502ed39 <JS RegExp>,D=0x9a6905b82c9 <String[19]: Hmrc Manual Section>)
    3: _arrRow(aka toRow) [0x14f515e04381 <undefined>:~3] [pc=0x3651438d693a] (this=0xdda011b2081 <a CsvWriteStream w...

FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory
 1: node::Abort() [/Users/joelanman/.nvm/versions/node/v6.10.3/bin/node]
 2: node::FatalException(v8::Isolate*, v8::Local<v8::Value>, v8::Local<v8::Message>) [/Users/joelanman/.nvm/versions/node/v6.10.3/bin/node]
 3: v8::internal::V8::FatalProcessOutOfMemory(char const*, bool) [/Users/joelanman/.nvm/versions/node/v6.10.3/bin/node]
 4: v8::internal::Factory::NewRawOneByteString(int, v8::internal::PretenureFlag) [/Users/joelanman/.nvm/versions/node/v6.10.3/bin/node]
 5: v8::internal::String::SlowFlatten(v8::internal::Handle<v8::internal::ConsString>, v8::internal::PretenureFlag) [/Users/joelanman/.nvm/versions/node/v6.10.3/bin/node]
 6: v8::internal::RegExpImpl::IrregexpPrepare(v8::internal::Handle<v8::internal::JSRegExp>, v8::internal::Handle<v8::internal::String>) [/Users/joelanman/.nvm/versions/node/v6.10.3/bin/node]
 7: v8::internal::RegExpImpl::IrregexpExec(v8::internal::Handle<v8::internal::JSRegExp>, v8::internal::Handle<v8::internal::String>, int, v8::internal::Handle<v8::internal::JSArray>) [/Users/joelanman/.nvm/versions/node/v6.10.3/bin/node]
 8: v8::internal::RegExpImpl::Exec(v8::internal::Handle<v8::internal::JSRegExp>, v8::internal::Handle<v8::internal::String>, int, v8::internal::Handle<v8::internal::JSArray>) [/Users/joelanman/.nvm/versions/node/v6.10.3/bin/node]
 9: v8::internal::Runtime_RegExpExec(int, v8::internal::Object**, v8::internal::Isolate*) [/Users/joelanman/.nvm/versions/node/v6.10.3/bin/node]
10: 0x3651437092a7
Abort trap: 6

[lt7]

+1. need to be able to flush the writer.

[root@ip-10-160-152-194 faker]#
<--- Last few GCs --->

44249 ms: Scavenge 1399.2 (1458.0) -> 1399.2 (1458.0) MB, 2.5 / 0 ms (+ 4.2 ms in 1 steps since last GC) [allocation failure] [incremental marking delaying mark-sweep].
45503 ms: Mark-sweep 1399.2 (1458.0) -> 1399.2 (1458.0) MB, 1253.5 / 0 ms (+ 5.1 ms in 2 steps since start of marking, biggest step 4.2 ms) [last resort gc].
46750 ms: Mark-sweep 1399.2 (1458.0) -> 1399.1 (1458.0) MB, 1247.4 / 0 ms [last resort gc].

<--- JS stacktrace --->

==== JS stack trace =========================================

Security context: 0x3265157b4629
1: transactionType [/tmp/faker/node_modules/faker/lib/finance.js:~102] [pc=0x7ab5d526bb6] (this=0x29f53e755a11 )
2: /* anonymous */ [/tmp/faker/faker.js:~1] [pc=0x7ab5d589dbf] (this=0x29f53e7df711 <an Object with map 0x1316c3a087d1>,exports=0x29f53e7df711 <an Object with map 0x1316c3a087d1>,require=0x29f53e7df5b1 <JS Function require (SharedFunctionInfo 0x29f53e73f1e1)>,modul...

FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - process out of memory

[1]+ Aborted node faker.js
[root@ip-10-160-152-194 faker]#