Hi Robin

It would be ideal if you could please create a new issue here:
https://bugs.python.org/

Thanks

Steve

On Sun, Jan 17, 2021 at 12:53 PM Robin Becker <ro...@reportlab.com> wrote:

> Not sure if this is where I should report, but I have a segfault in
> reportlab userguide creation with 3.10a4. I am
> getting this info from coredumpctl running archlinux with
>
> Linux hostname 5.10.6-arch1-1 #1 SMP PREEMPT Sat, 09 Jan 2021 18:22:35
> +0000 x86_64 GNU/Linux
>
>
> the error is
>         Message: Process 1530711 (python) of user 1000 dumped core.
>
>                  Stack trace of thread 1530711:
>                  #0  0x00007f7c9bf72615 raise (libc.so.6 + 0x3d615)
>                  #1  0x00007f7c9bf5b862 abort (libc.so.6 + 0x26862)
>                  #2  0x00007f7c9bfb45e8 __libc_message (libc.so.6 +
> 0x7f5e8)
>                  #3  0x00007f7c9bfbc27a malloc_printerr (libc.so.6 +
> 0x8727a)
>                  #4  0x00007f7c9bfbd64c _int_free (libc.so.6 + 0x8864c)
>                  #5  0x00005631260a01dd n/a
> (/home/robin/devel/reportlab/.py310/bin/python310 + 0x1401dd)
>
> 1) I compile this from source using the standard LTO method my script
> looks like
>
> ###########################################
> CFLAGS="-march=x86-64 -mtune=generic -O3 -pipe -fno-plt
> -fno-semantic-interposition"
> LDFLAGS="-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now
> -rpath=$HOME/LOCAL/3.10.0a4/lib -fno-semantic-interposition"
>
>
> ./configure \
>                 --prefix=$HOME/LOCAL/3.10.0a4 \
>                 --with-computed-gotos \
>                 --enable-optimizations \
>                 --with-lto \
>                 --enable-ipv6 \
>                 --with-system-expat \
>                 --with-dbmliborder=gdbm:ndbm \
>                 --with-system-ffi \
>                 --with-system-libmpdec \
>                 --enable-loadable-sqlite-extensions && make
> EXTRA_CFLAGS="$CFLAGS" && make install
> ###########################################
>
> 1) can I get more information using a different compile setup
>
> 2) or can I get more information with the python run. I just used
> > $ python genuserguide.py
> > Built story contains 1843 flowables...
> > Saved
> "/home/robin/devel/reportlab/REPOS/reportlab/docs/reportlab-userguide.pdf"
> > free(): invalid pointer
> > Aborted (core dumped)
>
> 3) I am running in an old style virtual environment generated using a
> modified virtualenv 16.2.0 (to fix wrong usage of
> sys.version[:3] in path names)
>
> 4) All other tests seem fine including tests of image generation and the
> accelerated strinGWidths etc etc so I am a bit
> mystified.
> --
> Robin Becker
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