bugGuile - Bugs: bug #33498, Guile 2.0.1 segfaults on...


bug #33498: Guile 2.0.1 segfaults on (begin-thread . . .

Submitter:  None
Submitted:  Wed 08 Jun 2011 06:56:42 PM UTC
Category:  None Severity:  3 - Normal
Item Group:  None Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open
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Sun 19 Jun 2011 08:20:15 PM UTC, comment #5: 

Thanks for the info.  Can you get a backtrace with gc 6.8?  See http://www.gnu.org/software/guile/manual/html_node/Reporting-Bugs.html#Reporting-Bugs for instructions, but instead of "backtrace", enter "thread apply all backtrace".  Thanks!

Andy Wingo <wingo>
Group administrator
Sun 19 Jun 2011 12:15:59 AM UTC, comment #4: 

I'll try the prerelease on both machines and report back.

Jason R. Fruit <jasonfruit>
Sun 19 Jun 2011 12:14:11 AM UTC, comment #3: 

I built and used libgc 6.8.  On a side note, I was able to use begin-thread successfully on a Debian machine after following a similar build process but using libgc 7.1.

Jason R. Fruit <jasonfruit>
Fri 17 Jun 2011 06:21:39 PM UTC, comment #2: 

Hi Jason.  What version of libgc are you using?  Is it from the distro or did you compile it yourself?

Also, can you try a 2.0.2 prerelease, from here: http://hydra.nixos.org/build/1123775/download/1/guile- ?



Andy Wingo <wingo>
Group administrator
Thu 09 Jun 2011 12:55:36 AM UTC, comment #1: 

Having created an account, let me add a little more information.  I'm on Ubuntu 10.04, kernel version 2.6.32-28-generic-pae, and I compiled Guile with GCC 4.4.3 using no special flags.

Jason R. Fruit <jasonfruit>
Wed 08 Jun 2011 06:56:42 PM UTC, original submission:  

Any way I use (begin-thread . . .) I get a segfault.  I may be using it incorrectly, of course, but a segfault is probably not the best result.


Here's a sample session:

GNU Guile 2.0.1
Copyright (C) 1995-2011 Free Software Foundation, Inc.

Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
This program is free software, and you are welcome to redistribute it
under certain conditions; type `,show c' for details.

Enter `,help' for help.
scheme@(guile-user)> (begin-thread (display "test"))
test$1 =
Process scheme segmentation fault


I'm happy to supply more information if needed.



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