Assertion `(parser->current_buffer_len_) == (0)' failed

[nitroxis]

• Version: v8.1.4
• Platform: Linux 4.9.0-2-amd64 deps: update openssl to 1.0.1j #1 SMP Debian 4.9.18-1 (2017-03-30) x86_64 GNU/Linux
• Subsystem: node_http_parser.cc

Hi,

I get the following crash from time to time (randomly, it seems):

/usr/local/bin/node[26969]: ../src/node_http_parser.cc:420:static void node::{anonymous}::Parser::Execute(const v8::FunctionCallbackInfo<v8::Value>&): Assertion `(parser->current_buffer_len_) == (0)' failed.
Main process exited, code=killed, status=6/ABRT
 1: node::Abort() [/usr/local/bin/node]
 2: node::Assert(char const* const (*) [4]) [/usr/local/bin/node]
 3: 0x14135d1 [/usr/local/bin/node]
 4: 0xcc6de636c65

I'm not entirely sure where this comes from as there is no JS stack trace, but I believe it happens when processing the response of a HTTP request. This bug has been around for a long time, but it's very inconsistent. It might have already been reported here, at least it seems to be related.

[BridgeAR]

Does the same error occur with 8.4?

[nitroxis]

I will try to update node, but it might take weeks until it happens again, unless I find a way to reproduce it.

[bnoordhuis]

I'll close this out for now, let us know if you can reproduce with the latest v8.x.

[nitroxis]

Coincidentally, it just happened again. Same stack trace, different line:

/usr/local/bin/node[23084]: ../src/node_http_parser.cc:423:static void node::{anonymous}::Parser::Execute(const v8::FunctionCallbackInfo<v8::Value>&): Assertion `(parser->current_buffer_len_) == (0)' failed.
 1: node::Abort() [/usr/local/bin/node]
 2: node::Assert(char const* const (*) [4]) [/usr/local/bin/node]
 3: 0x142b461 [/usr/local/bin/node]
 4: 0x11eabb74aac7
Main process exited, code=killed, status=6/ABRT

I still don't know where exactly in the JS code this happened.

[psamim]

It also happened to me, node version 8.4.0 on Archlinux. The 8:54:18 AM api.1 part in the log is from node-foreman.

8:54:18 AM api.1       |  /usr/bin/node[5205]: ../src/node_http_parser.cc:423:static void node::{anonymous}::Parser::Execute(const v8::FunctionCallbackInfo<v8::Value>&): Assertion `(parser->current_buffer_len_) == (0)' failed.
8:54:18 AM api.1       |   1:
8:54:18 AM api.1       |  node::Abort() [/usr/bin/node]
8:54:18 AM api.1       |   2:
8:54:18 AM api.1       |  node::Assert(char const* const (*) [4]) [/usr/bin/node]
8:54:18 AM api.1       |   3: 0x5616b4c073dd [/usr/bin/node]
8:54:18 AM api.1       |   4: v8::internal::FunctionCallbackArguments::Call(void (*)(v8::FunctionCallbackInfo<v8::Value> const&)) [/usr/bin/node]
8:54:18 AM api.1       |   5: 0x5616b442414c [/usr/bin/node]
8:54:18 AM api.1       |   6: 0x5616b4424754 [/usr/bin/node]
8:54:18 AM api.1       |   7: 0x5350f1840dd

[addaleax]

@psamim Any chance you could get us a core dump of that crash?

[psamim]

I do not know how.

…

On Sun, Sep 17, 2017 at 5:20 PM Anna Henningsen ***@***.***> wrote: @psamim <https://github.com/psamim> Any chance you could get us a core dump of that crash? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#15102 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AByDh44MUSI-Ma64CJV0WGCVtBCCLETMks5sjRWggaJpZM4PICpG> .

[SINHASantos]

linux node v8.4.0

/usr/local/bin/node[30809]: ../src/node_http_parser.cc:423:static void node::{a nonymous}::Parser::Execute(const v8::FunctionCallbackInfov8::Value&): Asserti on `(parser->current_buffer_len_) == (0)' failed.
1: node::Abort() [node]
2: node::Assert(char const* const () [4]) [node]
3: 0x13c5bcd [node]
4: v8::internal::FunctionCallbackArguments::Call(void ()(v8::FunctionCallback Infov8::Value const&)) [node]
5: 0xc3ac4a [node]
6: v8::internal::Builtin_HandleApiCall(int, v8::internal::Object**, v8::intern al::Isolate*) [node]
7: 0x39c5acd040dd
Aborted

solution:

1. install following module

npm install http-parser-js

2. and add the line below in your code

process.binding('http_parser').HTTPParser = require('http-parser-js').HTTPParser;

and it solves the problem

[cjihrig]

I do not know how.

@psamim start Node with the --abort-on-uncaught-exception flag. Before starting node, also run ulimit -c unlimited.

[psamim]

@cjihrig I did and the same thing happened:

3:56:58 PM api.1       |  /usr/bin/node[22446]: ../src/node_http_parser.cc:423:static void node::{anonymous}::Parser::Execute(const v8::FunctionCallbackInfo<v8::Value>&): Assertion `(parser->current_buffer_len_) == (0)' failed.
3:56:58 PM api.1       |   1:
3:56:58 PM api.1       |  node::Abort()
3:56:58 PM api.1       |   [/usr/bin/node]
3:56:58 PM api.1       |   2:
3:56:58 PM api.1       |  node::Assert(char const* const (*) [4])
3:56:58 PM api.1       |   [/usr/bin/node]
3:56:58 PM api.1       |   3:
3:56:58 PM api.1       |  0x5616f1cbd3dd [/usr/bin/node]
3:56:58 PM api.1       |   4: v8::internal::FunctionCallbackArguments::Call(void (*)(v8::FunctionCallbackInfo<v8::Value> const&)) [/usr/bin/node]
3:56:58 PM api.1       |   5: 0x5616f14da14c [/usr/bin/node]
3:56:58 PM api.1       |   6:
3:56:58 PM api.1       |  0x5616f14da754 [/usr/bin/node]
3:56:58 PM api.1       |   7: 0x3f5c6b9840dd

[addaleax]

@psamim Do you find a file name core or similar where you were running your node program?