Driver exits and does not restart after a syntax error

[smacker]

Bblfshd: v2.11.7
Driver: v2.7.0

Logs from the server:

FATAL <file>: syntax error: Syntax error, unexpected ')' on line 4
FATAL <file>: driver failure: unexpected end of JSON input
FATAL <file>: driver failure: native driver is not running

I can reproduce it locally:

root@a743b6d87529:/# bblfshctl parse fail.phpt
Status: Fatal
Elapsed: 1.2380209s
Errors:
	- syntax error: Syntax error, unexpected ')' on line 4


root@a743b6d87529:/# bblfshctl parse fail.phpt
Status: Fatal
Elapsed: 4.0194ms
Errors:
	- syntax error: Syntax error, unexpected ')' on line 4


root@a743b6d87529:/# bblfshctl parse fail.phpt
Status: Fatal
Elapsed: 3.6043ms
Errors:
	- syntax error: Syntax error, unexpected ')' on line 4


root@a743b6d87529:/# bblfshctl parse fail.phpt
Status: Fatal
Elapsed: 2.2709ms
Errors:
	- syntax error: Syntax error, unexpected ')' on line 4


root@a743b6d87529:/# bblfshctl parse fail.php
Status: Fatal
Elapsed: 1.8465598s
Errors:
	- driver failure: unexpected end of JSON input


root@a743b6d87529:/# bblfshctl parse fail.phpt
Status: Fatal
Elapsed: 1.4034ms
Errors:
	- driver failure: native driver is not running

Any request to PHP driver after that (with correct files too) end up with the same error: driver failure: native driver is not running

I'll send files in private

[juanjux]

I'm working on this. Currently:

• Native driver without the Go (annotation + SDK) layer or bblfshd: works.
• Go+native driver running on its own docker without bblfshd: crash.
• bblfshd calling the driver: crash.

I'll now check the Go driver without bblfshd and, if it crash (and I'm pretty sure it'll since no other part use JSON and the error is JSON related) I'll continue debugging from there.

[bzz]

This should have been fixed by now in bblfsh/sdk#381 and needs to be tested on bblfshd v2.11.9 once it's out.

[dennwc]

@smacker Can you please send the file?

[smacker]

done in private

[dennwc]

The crash will be fixed by #41 and the root cause is #42.