New comment by dkwo on void-packages repository

https://github.com/void-linux/void-packages/pull/34030#issuecomment-994879784

Comment:
I installed valgrind. I get
```
$ sage-9.5.beta8_1 --valgrind
Python suppressions not found (not installed?), skipping
Using default flags: --leak-resolution=high --leak-check=full --num-callers=25  --suppressions=/usr/lib/sage-9.5.beta8/local/var/lib/sage/venv-python3.9.7/lib/python3.9/site-packages/sage/ext_data/valgrind/pyalloc.supp --suppressions=/usr/lib/sage-9.5.beta8/local/var/lib/sage/venv-python3.9.7/lib/python3.9/site-packages/sage/ext_data/valgrind/sage.supp --suppressions=/usr/lib/sage-9.5.beta8/local/var/lib/sage/venv-python3.9.7/lib/python3.9/site-packages/sage/ext_data/valgrind/sage-additional.supp
==21873== Memcheck, a memory error detector
==21873== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==21873== Using Valgrind-3.18.1 and LibVEX; rerun with -h for copyright info
==21873== Command: /usr/lib/sage-9.5.beta8/src/bin/sage-ipython -i
==21873==
┌────────────────────────────────────────────────────────────────────┐
│ SageMath version 9.5.beta8, Release Date: 2021-12-12               │
│ Using Python 3.9.7. Type "help()" for help.                        │
└────────────────────────────────────────────────────────────────────┘
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃ Warning: this is a prerelease version, and it may be unstable.     ┃
┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
------------------------------------------------------------------------
Attaching gdb to process id 21877.
GNU gdb (GDB) 11.1
Copyright (C) 2021 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-musl".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word".
[New LWP 21912]
0x00007efe91cac388 in __cp_end () from /lib/ld-musl-x86_64.so.1

Stack backtrace
---------------
No symbol table info available.
#1  0x00007efe91c9dfc1 in __syscall_cp_c () from /lib/ld-musl-x86_64.so.1
No symbol table info available.
#2  0x00007efe91ce7b44 in builtin_tls () from /lib/ld-musl-x86_64.so.1
No symbol table info available.
#3  0x0000000000000000 in ?? ()
No symbol table info available.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[Inferior 1 (process 21877) detached]
Traceback (most recent call last):
  File "<string>", line 25, in <module>
ModuleNotFoundError: No module named 'Cython'
Error while executing Python code.
Saved trace to /home/nicolo/.sage/crash_logs/crash_6nnbkql4.log
------------------------------------------------------------------------
Unhandled SIGSEGV: A segmentation fault occurred.
This probably occurred because a *compiled* module has a bug
in it and is not properly wrapped with sig_on(), sig_off().
Python will now terminate.
------------------------------------------------------------------------
Segmentation fault
```