Re: Gimp git on Mac Segfault

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Jehan,

I will test it tomorrow. I will get back to you with the results.

Thanks for your prompt response!

Partha



On Thu, Jul 18, 2013 at 11:42 AM, Jehan Pagès <jehan.marmottard@xxxxxxxxx>wrote:

> Hi again,
>
> I have some working code in my working branch now where I applied the
> concepts I wrote about (basically initializing the language store only
> once and at the very start of the program, before any threading would
> occur hopefully).
> Don't know if that will be the finale code, but should be at least
> good enough to test on OSX (I don't have access to a OSX machine to
> reproduce the bug myself and see if this indeed fixes the issue). As
> soon as the report is up, I'll upload the patch there so that someone
> with OSX can test it and tell me if that fixes it. :-)
> Thanks.
>
> Jehan
>
>
> On Thu, Jul 18, 2013 at 9:47 PM, Jehan Pagès <jehan.marmottard@xxxxxxxxx>
> wrote:
> > Hey all,
> >
> > it seems I am the culprit for this bug. I don't have this crash on Linux
> though.
> >
> > It looks like the implementation of setenv/getenv is different on OSX.
> > According to glib doc, the problem may be that on some
> > implementations, successive calls may use the same buffer. I guess
> > that's the case on OSX. And also these calls are not thread-safe. Also
> > the fact that there is no LANGUAGE env variable should normally not be
> > a real problem. I don't have this variable set on my system either
> > and, as I said, no crash here. I guess this brought the real issue of
> > the OSX getenv/setenv implementation into light though.
> >
> > In any case, I think that the real solution is to have the list of all
> > localized languages generated at startup, before any thread or
> > anything happens (I just saw that's also what glib doc says: we should
> > only use these calls on startup before any thread happens). Then we
> > just use this pre-generated list each time it is needed. I was already
> > thinking that the current design was bad anyway, because we are
> > basically parsing a huge file of language codes and names each time we
> > open the preference dialog! Such a waste of resources and time.
> > I did not modify it at the time because I did not feel like using more
> > time towards this, but I guess that should be the occasion to do it.
> >
> > In any case, please fill a bug report and I'll have a look! :-)
> >
> > Jehan
> >
> >
> > On Thu, Jul 18, 2013 at 6:31 AM, Partha Bagchi <partha1b@xxxxxxxxx>
> wrote:
> >> Hey V,
> >>
> >> Thanks for checking on this. I am glad (in a way) that my system is not
> the
> >> only one having this issue! :)
> >>
> >> I will try to revert the above changes and see if the problem
> disappears.
> >>
> >> Partha
> >>
> >>
> >>
> >> On Wed, Jul 17, 2013 at 7:51 AM, su_v <suv-sf@xxxxxxxxxxxxxxxxxxxxx>
> wrote:
> >>
> >>> On 2013-07-17 01:19 +0100, Partha Bagchi wrote:
> >>> > My recent (last built a few moment ago) git builds (2.9) have been
> >>> > instantly segfaulting on MBR running Mountain Lion.
> >>> >
> >>> > gdb backtrace (or commandline execution) shows:
> >>> > ./gimp-2.9 (pid:42315): [E]xit, [H]alt, show [S]tack trace or
> [P]roceed:
> >>> S
> >>> > #0  0x00007fff8b257698 in __wait4 ()
> >>> > #1  0x00000001018de353 in g_on_error_stack_trace ()
> >>> > #2  0x00000001018de7f2 in g_on_error_query ()
> >>> > #3  0x000000010000fa54 in gimp_eek ()
> >>> > #4  0x000000010000fac8 in gimp_fatal_error ()
> >>> > #5  0x0000000100010326 in gimp_sigfatal_handler ()
> >>> > #6  <signal handler called>
> >>> > #7  0x00007fff8c40887e in setenv ()
> >>> > #8  0x00000001018f76cf in g_setenv ()
> >>> > #9  0x0000000100168c11 in gimp_language_store_self_l10n ()
> >>> > #10 0x0000000101915c99 in emit_start_element ()
> >>> > #11 0x00000001019170b0 in g_markup_parse_context_parse ()
> >>> > #12 0x000000010035a7ba in gimp_xml_parser_parse_io_channel ()
> >>> > #13 0x000000010035a9ab in gimp_xml_parser_parse_file ()
> >>> > #14 0x0000000100168f71 in gimp_language_store_parse_iso_codes ()
> >>> > #15 0x000000010188619b in g_object_new_internal ()
> >>> > #16 0x0000000101886cdd in g_object_newv ()
> >>> > #17 0x0000000101886edc in g_object_new ()
> >>> > #18 0x0000000100168025 in gimp_language_entry_new ()
> >>> > #19 0x000000010017cc00 in gimp_prop_language_entry_new ()
> >>> > #20 0x00000001000a3df2 in gimp_text_options_gui ()
> >>> > #21 0x000000010005e9e6 in gimp_tools_restore ()
> >>> > #22 0x000000010001428b in gui_restore_callback ()
> >>> > #23 0x000000010187dd0d in g_closure_invoke ()
> >>> > #24 0x000000010189483b in signal_emit_unlocked_R ()
> >>> > #25 0x0000000101897111 in g_signal_emit_valist ()
> >>> > #26 0x0000000101897964 in g_signal_emit ()
> >>> > #27 0x000000010000f2fe in app_run ()
> >>> > #28 0x0000000100011994 in main ()
> >>> >
> >>> > and gimp-2.9 --verbose
> >>> > ...
> >>> > Parsing '/Users/partha/Library/Application
> >>> > Support/GIMP/2.9/tool-options/gimp-text-tool'
> >>> > ./gimp-2.9: fatal error: Segmentation fault: 11
> >>> > ./gimp-2.9 (pid:42330): [E]xit, [H]alt, show [S]tack trace or
> [P]roceed:
> >>> >
> >>> > Is anyone else on the Mac having this issue? Should I file a
> bug-report?
> >>>
> >>> Reproduced (same stack trace) on MBR (13-inch, Late 2011) running OS X
> >>> 10.7.5; dependencies for GIMP installed via MacPorts (custom portfiles
> >>> for babl, gegl and GIMP git master).
> >>>
> >>> Workaround (at least for this segfault at launch time) is to run GIMP
> >>> like this:
> >>>
> >>> $ echo $LANG
> >>> en_US.UTF-8
> >>> $ LANGUAGE="$LANG" gimp --verbose
> >>>
> >>>
> >>> Possibly related to the changes in
> >>> <
> >>>
> https://git.gnome.org/browse/gimp/commit/?id=f6dcde1ee66fda4dfdc063022c4d2e901adb9a71
> >>> >
> >>> <
> >>>
> https://git.gnome.org/browse/gimp/commit/?id=4eecd9b4ac71615f10819378938dcdce7e531167
> >>> >
> >>>
> >>>
> >>> hth, V
> >>> _______________________________________________
> >>> gimp-developer-list mailing list
> >>> List address:    gimp-developer-list@xxxxxxxxx
> >>> List membership:
> >>> https://mail.gnome.org/mailman/listinfo/gimp-developer-list
> >>>
> >> _______________________________________________
> >> gimp-developer-list mailing list
> >> List address:    gimp-developer-list@xxxxxxxxx
> >> List membership:
> https://mail.gnome.org/mailman/listinfo/gimp-developer-list
>
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