Bug 17491 - Fsharpi/Fsharpc hang when started.
Summary: Fsharpi/Fsharpc hang when started.
Alias: None
Product: Runtime
Classification: Mono
Component: General ()
Version: 3.2.x
Hardware: PC Linux
: --- normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2014-01-29 14:34 UTC by nhusted
Modified: 2014-01-30 22:42 UTC (History)
3 users (show)

Is this bug a regression?: ---
Last known good build:

Notice (2018-05-24): bugzilla.xamarin.com is now in read-only mode.

Please join us on Visual Studio Developer Community and in the Xamarin and Mono organizations on GitHub to continue tracking issues. Bugzilla will remain available for reference in read-only mode. We will continue to work on open Bugzilla bugs, copy them to the new locations as needed for follow-up, and add the new items under Related Links.

Our sincere thanks to everyone who has contributed on this bug tracker over the years. Thanks also for your understanding as we make these adjustments and improvements for the future.

Please create a new report on GitHub or Developer Community with your current version information, steps to reproduce, and relevant error messages or log files if you are hitting an issue that looks similar to this resolved bug and you do not yet see a matching new report.

Related Links:

Description nhusted 2014-01-29 14:34:11 UTC
When starting fsharpi the initial prompt appears and then the program hangs at the following:

F# Interactive for F# 3.1 (Open Source Edition)
Freely distributed under the Apache 2.0 Open Source License

For help type #help;;


When fsharpc is run it will hang after printing an error and not return control to the console:
F# Compiler for F# 3.1 (Open Source Edition)
Freely distributed under the Apache 2.0 Open Source License

error FS0207: No inputs specified

"mono --help" does not hang.

Mono Version: 3.2.7 master (commit 44fcdaf5052893bb811e2e9c7b551db8fcccafa0)
Fsharp Version: 3.1 master (commit 4176c2c4635e62a83fb205c528d43732e990a30f)

Build Process: Parallel Mono Environment (http://www.mono-project.com/Parallel_Mono_Environments) used for building both mono and fsharp. Command line arguments as provided in the instructions.
Comment 1 Zoltan Varga 2014-01-30 00:59:14 UTC
What os is this ? What is the output of mono --version ?
Comment 2 nhusted 2014-01-30 09:35:32 UTC
OS: Debian Testing
Mono version:
Mono JIT compiler version 3.2.7 (master/44fcdaf Wed Jan 29 12:05:24 EST 2014)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
	TLS:           __thread
	SIGSEGV:       altstack
	Notifications: epoll
	Architecture:  amd64
	Disabled:      none
	Misc:          softdebug 
	LLVM:          supported, not enabled.
	GC:            sgen
Comment 3 Zoltan Varga 2014-01-30 10:51:36 UTC
I can't reproduce this with mono master/f# master  on a debian 7.2 system.
Comment 4 nhusted 2014-01-30 11:01:06 UTC
I will attempt to reproduce from a clean environment. Currently in the process of attempting reproduction on a Raspberry Pi and Raspbian as well.
Comment 5 Zoltan Varga 2014-01-30 12:34:37 UTC
Could you try running with mono -O=-aot ?
Comment 6 nhusted 2014-01-30 22:42:46 UTC
I was unable to reproduce in a clean environment. It must have been an artifact due to configuration issues.