[Bug libfortran/33905] show_backtrace hangs on SIGSEGV in malloc/free

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33905

Tobias Burnus burnus at gcc dot gnu.org changed:

   What|Removed |Added

 CC||burnus at gcc dot gnu.org

--- Comment #6 from Tobias Burnus burnus at gcc dot gnu.org 2011-05-17 
21:07:38 UTC ---
Suggested patch by Janne (cf. PR 48931):
  http://gcc.gnu.org/ml/fortran/2011-05/msg00122.html

[Bug libfortran/33905] show_backtrace hangs on SIGSEGV in malloc/free

[pault at gcc dot gnu dot org]

--- Comment #4 from pault at gcc dot gnu dot org  2009-12-17 20:17 ---
I think that FX was right, since Toon has not responded in 6 months.

Entering a WONTFIX

Paul


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pault at gcc dot gnu dot org changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution||WONTFIX


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33905

[Bug libfortran/33905] show_backtrace hangs on SIGSEGV in malloc/free

[toon at moene dot org]

--- Comment #5 from toon at moene dot org  2009-12-17 21:58 ---
 (Even with a temporary file, other things can go wrong!)

Paul, you are right - I agree with FX, but forgot to reply.

Closing as WONTFIX is OK with me.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33905

[Bug libfortran/33905] show_backtrace hangs on SIGSEGV in malloc/free

[fxcoudert at gcc dot gnu dot org]

--- Comment #3 from fxcoudert at gcc dot gnu dot org  2009-05-13 09:03 
---
Frankly, this is a snag in a non-default debugging feature in rare conditions;
that has to be a third-order enhancement request, at least! :)  We cannot
provide completely foolproof debugging capablities anyway: people who want to
have the full power of debugging will be able to use gdb themselves. (Even with
a temporary file, other things can go wrong!)

I'd be in favour of closing this as WONTFIX, unless we have serious indication
that this actually happens often in non mixed-language cases. Toon, what's your
take?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33905

[Bug libfortran/33905] show_backtrace hangs on SIGSEGV in malloc/free

[fxcoudert at gcc dot gnu dot org]

--- Comment #1 from fxcoudert at gcc dot gnu dot org  2009-03-29 09:18 
---
Toon, do you have an example that shows this happening?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33905

[Bug libfortran/33905] show_backtrace hangs on SIGSEGV in malloc/free

[toon at moene dot org]

--- Comment #2 from toon at moene dot org  2009-03-29 13:36 ---
I'll try to come up with a bug report this week (the original case is much to
complicated to use as an example).

However, it might take some time and it also might be system dependent to
trigger this event.

It's clear, however, from the way you implemented the traceback feature that it
is possible to hit this snag - it's just that not many people will hit it.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33905