Re: Mkclean sigsev on a specific file

Can you get a bigger backtrace, up to the main() if possible ? Is it
possible to get one of the files that crash (the smallest) ?

On Fri, Jul 16, 2010 at 3:26 PM, julroy67 <[email protected]> wrote:

> So, better, than before. The first version, with a clean build,
> crashes like the arch package, same output. And now for the debug
> version, the real output (I have missed up something in the other
> version, that crashed at startup) :
>
> 15:23 julroy67@momoko-laptop ~/Apps/mkclean/mkclean-0.4.1% gdb
> release/gcc_linux_x64_debug/mkclean
> GNU gdb (GDB) 7.1
> Copyright (C) 2010 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <
> http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "x86_64-unknown-linux-gnu".
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>...
> Reading symbols from
>
> /home/julroy67/Apps/mkclean/mkclean-0.4.1/release/gcc_linux_x64_debug/mkclean...done.
> (gdb) run --optimize --remux Test.mkv Test.mkv.2
> Starting program:
>
> /home/julroy67/Apps/mkclean/mkclean-0.4.1/release/gcc_linux_x64_debug/mkclean
> --optimize --remux Test.mkv Test.mkv.2
> [Thread debugging using libthread_db enabled]
> Progress 1/3: 100%
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x000000000042b4af in EBML_MasterFindFirstElt (Element=0x0,
> Context=0x656ce0, bCreateIfNull=0, SetDefault=0) at ebmlmaster.c:46
> 46          for (i=EBML_MasterChildren(Element);i;i=EBML_MasterNext(i))
>
> This one is the good, I think.
>
> 2010/7/16 Steve Lhomme <[email protected]>:
> > Before starting to debug you should try to build it first like I just
> > described you. Using the available source package
> > here: http://dl.matroska.org/downloads/mkclean/mkclean-0.4.1.tar.bz2
> > I don't know about archlinux and how you got that package and who made
> it.
> > So I don't know what it contains and if it's correct. mkclean doesn't use
> > the usual autoconf/automake system found on Linux, so maybe it was
> packaged
> > incorrectly.
> > If you manage to build it like I said and it still fails, you can try to
> > rebuild it with debug informations like this:
> > ./coremake distclean
> > ./coremake gcc_linux_x64_debug
> >
> > Steve
> > On Fri, Jul 16, 2010 at 3:05 PM, julroy67 <[email protected]> wrote:
> >>
> >> Mhh I don't know if I'm correctly generating the debug version of
> >> mkclean, could you say me step by step how to it. To be clear, I'm
> >> using archlinux, and archlinux AUR package of mkclean, it works for
> >> most of the file, but for at least 2 of them, it crashes as this :
> >>
> >> 14:59 julroy67@momoko-laptop ~% mkclean --optimize --remux Test.mkv
> >> Test.mkv.2
> >> Progress 1/3: 100%
> >> zsh: segmentation fault  mkclean --optimize --remux Test.mkv Test.mkv.2
> >>
> >> And it seems that the debug binary that I've generated crashes always,
> >> so I'm doing wrong, but still, mkclean has a error somewhere ^^' So to
> >> be sure to do correctly, I think, a step by step debugging guide would
> >> help. Sorry for the hassle.
> >>
> >> 2010/7/16 Steve Lhomme <[email protected]>:
> >> > Hi.
> >> > Given the nature of the crash, it looks like it should always crash as
> >> > that
> >> > error is on the init. It may have to do with linux x64 rather than 32
> >> > bits.
> >> > I'll give it a try on my side.
> >> > Or did you compile it with a 32 bits tool chain ? The regular
> >> > bootstrap.sh
> >> > and subsequent "make" command are building for 32 bits. In 0.4.2 that
> >> > should
> >> > be released soon I changed that and there is now a "configure" script.
> >> > It
> >> > will build the makefiles for 64 bits architecture on 64 bits ones...
> >> > Meanwhile you can make sure or that by running that in the root folder
> >> > of
> >> > the sources:
> >> > ./coremake distclean
> >> > ./coremake gcc_linux_x64
> >> > Then you run "make -C mkclean" and it should work.
> >> >
> >> > On Fri, Jul 16, 2010 at 2:41 PM, julroy67 <[email protected]> wrote:
> >> >>
> >> >> Hello,
> >> >>
> >> >> I'm using mkclean to clean up my mkv files that are for the most not
> >> >> valid as mkvalidate says, but on certain files, mkclean crashes. I've
> >> >> managed to get the backtrace from gdb. But I'm not sure where I have
> >> >> to report the issue.
> >> >>
> >> >> For the backtrace here's it :
> >> >>
> >> >> 14:30 julroy67@momoko-laptop ~/Apps/mkclean/src/mkclean-0.4.1% gdb
> >> >> release/gcc_linux_x64/mkclean
> >> >> GNU gdb (GDB) 7.1
> >> >> Copyright (C) 2010 Free Software Foundation, Inc.
> >> >> License GPLv3+: GNU GPL version 3 or later
> >> >> <http://gnu.org/licenses/gpl.html>
> >> >> This is free software: you are free to change and redistribute it.
> >> >> There is NO WARRANTY, to the extent permitted by law.  Type "show
> >> >> copying"
> >> >> and "show warranty" for details.
> >> >> This GDB was configured as "x86_64-unknown-linux-gnu".
> >> >> For bug reporting instructions, please see:
> >> >> <http://www.gnu.org/software/gdb/bugs/>...
> >> >> Reading symbols from
> >> >>
> >> >>
> >> >>
> /home/julroy67/Apps/mkclean/src/mkclean-0.4.1/release/gcc_linux_x64/mkclean...done.
> >> >> (gdb) run --optimize --remux Test.mkv Test.mkv.2
> >> >> Starting program:
> >> >>
> >> >>
> >> >>
> /home/julroy67/Apps/mkclean/src/mkclean-0.4.1/release/gcc_linux_x64/mkclean
> >> >> --optimize --remux Test.mkv Test.mkv.2
> >> >> [Thread debugging using libthread_db enabled]
> >> >>
> >> >> Program received signal SIGSEGV, Segmentation fault.
> >> >> 0x000000000040180e in ProjectSettings (p=0x7fffffffdc10) at
> >> >> mkclean_stdafx.c:99
> >> >> 99
> >> >>
> >> >>
>  Node_SetData((node*)p,NODECONTEXT_PROJECT_NAME,TYPE_STRING,PROJECT_NAME);
> >> >>
> >> >> or see here : http://julroy67.free.fr/DL/mkclean_crash_backtrace.log
> >> >>
> >> >> So anyone can say what I've to do ?
> >> >>
> >> >> Thanks.
> >> >> _______________________________________________
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> >> >
> >> >
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> >
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