maxima-5.45.1-4.fc38.x86_64
maxima-runtime-sbcl-5.45.1-4.fc38.x86_64
maxima-runtime-gcl-5.45.1-4.fc38.x86_64

Maxima segfaults when using the sbcl or gcl runtimes. It's fine under ecl or clisp.

sbcl segfaults around 1 in 5 times, but not completely deterministically. The coredumpctl debug backtrace never has much in it, though.

gcl segfaults consistently:

#0  0x0000000000081bae in make_simple_string (s=s@entry=0x37bd6b "free(3) error.")
    at /usr/src/debug/gcl-2.6.13-1.fc38.x86_64/o/string.d:70
Downloading source file /usr/src/debug/gcl-2.6.13-1.fc38.x86_64/o/string.d
70                      p[i] = s[i];                                                                                                
(gdb) bt
#0  0x0000000000081bae in make_simple_string (s=s@entry=0x37bd6b "free(3) error.")
    at /usr/src/debug/gcl-2.6.13-1.fc38.x86_64/o/string.d:70
#1  0x0000000000033755 in free (ptr=ptr@entry=0x5fda1d8) at alloc.c:1698
#2  0x00007f7f5e07288f in selinuxfs_exists () at /usr/src/debug/libselinux-3.5-1.fc38.x86_64/src/init.c:77
#3  0x00007f7f5e06d36c in init_selinuxmnt () at /usr/src/debug/libselinux-3.5-1.fc38.x86_64/src/init.c:97
#4  init_lib () at /usr/src/debug/libselinux-3.5-1.fc38.x86_64/src/init.c:150
#5  0x00007f7f5e7d117f in call_init (env=0x7ffe85c3db20, argv=0x7ffe85c3dae8, argc=6, l=<optimized out>) at dl-init.c:70
#6  call_init (l=<optimized out>, argc=6, argv=0x7ffe85c3dae8, env=0x7ffe85c3db20) at dl-init.c:26
#7  0x00007f7f5e7d127d in _dl_init (main_map=0x7f7f5e8002c0, argc=6, argv=0x7ffe85c3dae8, env=0x7ffe85c3db20) at dl-init.c:117
#8  0x00007f7f5e7e73e0 in _dl_start_user () from /lib64/ld-linux-x86-64.so.2
#9  0x0000000000000006 in ?? ()
#10 0x00007ffe85c3fd3e in ?? ()
#11 0x00007ffe85c3fd69 in ?? ()
#12 0x00007ffe85c3fd6f in ?? ()
#13 0x00007ffe85c3fd7e in ?? ()
#14 0x00007ffe85c3fd81 in ?? ()
#15 0x00007ffe85c3fd84 in ?? ()
#16 0x0000000000000000 in ?? ()




Reproducible: Always

Steps to Reproduce:
1. Start maxima with --lisp=sbcl or --lisp=gcl
Actual Results:  
Segfault.

Expected Results:  
Working session.