gdb

gdb ../a6ob/bin/a6ob/scheme  
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This GDB was configured as "amd64-unknown-openbsd6.0"...
(gdb) run
Starting program: /home/rashad/packages/ChezScheme-9.4/a6ob/bin/a6ob/scheme 
attempting to find 1 segments for space 0, generation 0

Program received signal SIGABRT, Aborted.
0x000019fbbec6592a in _thread_sys___syscall () at <stdin>:2
2       <stdin>: No such file or directory.
        in <stdin>
Current language:  auto; currently asm
(gdb) bt
#0  0x000019fbbec6592a in _thread_sys___syscall () at <stdin>:2
#1  0x000019fbbec0ef9a in *_libc_mmap (addr=Variable "addr" is not available.
) at /usr/src/lib/libc/sys/mmap.c:47
#2  0x000019f9bc008317 in S_getmem (bytes=2113536, zerofill=Variable "zerofill" is not available.
) at segment.c:151
#3  0x000019f9bc008762 in S_find_segments (s=0, g=0, n=1) at segment.c:342
#4  0x000019f9bc008c8e in S_find_more_room (s=0, g=0, n=16, old=0x0) at alloc.c:215
#5  0x000019f9bc009ecf in S_alloc_init () at alloc.c:49
#6  0x000019f9bc031d57 in Sbuild_heap (kernel=0x3e <Address 0x3e out of bounds>, custom_init=0) at scheme.c:58
#7  0x000019f9bc0446dd in main (argc=1, argv=0x7f7ffffcb938) at main.c:281
(gdb)