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