Thank you for all responses. I'm sending, what I was able get:
Program received signal SIGABRT, Aborted.
0x000009503cf679ea in mkfifo () from /usr/lib/libc.so.84.2
(gdb) bt
#0 0x000009503cf679ea in mkfifo () from /usr/lib/libc.so.84.2
#1 0x0000094d65b0bcd3 in node_creat (arcn=0x7f7ffffbb1a0)
at /usr/src/bin/pax/file_subs.c:405
#2 0x0000094d65b06a5b in extract () at /usr/src/bin/pax/ar_subs.c:308
#3 0x0000094d65b11284 in main (argc=3, argv=0x7f7ffffbcb58)
at /usr/src/bin/pax/pax.c:281
ulimit -a
time(cpu-seconds) unlimited
file(blocks) unlimited
coredump(blocks) unlimited
data(kbytes) 786432
stack(kbytes) 4096
lockedmem(kbytes) 632874
memory(kbytes) 1880896
nofiles(descriptors) 512
processes 128
(the error happed also under doas tar)
--
Jiri Navratil, http://kouc.navratil.cz, +420 222 767 131