[Scons-users] Segmentation faults in scons-2.2.0

[Gary Oberbrunner]

In theory, no program written in python should be able to crash the python
interpreter itself, which is what is happening to you.  What this means is
there's a definitely a bug in python on Interix.  The crash may or may not
be due to a higher-level bug (e.g. something in SCons), but at this point
what you're seeing is too far from the SCons code to be able to tell.  In
order to make further progress, you'd probably have to build python from
source on your Interix box -- not at all impossible, if you have a C/C++
development environment, but might be more than you're willing to get into.

I know it's not really relevant, but might cygwin be a possible replacement
for Interix for you?  It's much more widely used, I think, and probably
better supported.


On Fri, Aug 16, 2013 at 7:04 PM, Chris Irvine <cirvine1 at telus.net> wrote:


> $ python --version****

>

> Python 2.6.2****

>

> ** **

>

> The core can be looked at with that “gbd python core” command.  Thanks.

> It shows the three warnings below and they are repeated numerous times,

> always as warnings. ****

>

> ** **

>

> This GDB was configured as "i586-pc-interix3"...****

>

> Core was generated by `python /usr/local/bin/scons -H'.****

>

> Reading symbols from /usr/lib/x86/libdl.so.5.2...done.****

>

> Loaded symbols for /usr/lib/x86/libdl.so.5.2****

>

> Reading symbols from /usr/local/lib/x86/libreadline.so...****

>

> warning: "_environ": indirect symbol does not have real one (-1)****

>

> ** **

>

> ** **

>

> warning: "_RaiseException at 16": indirect symbol does not have real one (-1)

> ****

>

> ** **

>

> ** **

>

> warning: "_beThreadSafe": indirect symbol does not have real one (-1)****

>

> ** **

>

> done.****

>

> ** **

>

> ** **

>

> My system is Interix 6.1 and 64 bit system.  Microsoft regard Interix as

> third-party software now.  The Microsoft link about vfork you had is for

> Interix 3 and written back in 2005.  I hope it has been fixed??  In the

> python makefile, it has  ****

>

> ** **

>

> MACHDEP=   interix6****

>

> ** **

>

> The configuration may be the culprit.  ****

>

> ** **

>

> ** **

>

> Cheers****

>

> --Chris****

>

> ** **

>

> *From:* scons-users-bounces at scons.org [mailto:

> scons-users-bounces at scons.org] *On Behalf Of *Bill Deegan

> *Sent:* Thursday, August 15, 2013 7:34 PM

> *To:* SCons users mailing list

>

> *Subject:* Re: [Scons-users] Segmentation faults in scons-2.2.0****

>

> ** **

>

> Try :

> python --version

>

> ?****

>

> -Bill****

>

> ** **

>

> On Thu, Aug 15, 2013 at 6:27 PM, Gary Oberbrunner <garyo at oberbrunner.com>

> wrote:****

>

> ** **

>

> ** **

>

> On Thu, Aug 15, 2013 at 9:07 PM, Chris Irvine <cirvine1 at telus.net> wrote:*

> ***

>

> ...****

>

> Memory fault (core dumped)****

>

> $ scons****

>

> Memory fault (core dumped)****

>

> $ scons --debug=pdb****

>

> Memory fault (core dumped)****

>

>  ****

>

>  ****

>

> I don't know anything about Interix -- does Microsoft even still support

> it?  If it's Unix-like enough, you can try to do****

>

>   gdb python core****

>

> and then type 'where' to see the stack trace. But that will be at too low

> a level to see what python was trying to do at the time of failure.  And

> your log above shows it might not even be writing the core files it says it

> is.****

>

> I suppose it could be this issue: http://support.microsoft.com/kb/328684Might be worth trying that patch anyway.

> ****

>

> ** **

>

> Does python work at all?****

>

> ** **

>

> --

> Gary ****

>

>

> _______________________________________________

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>

> ** **

>

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>



-- 
Gary
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