jemalloc aborts: lloc_arena.c:363: Failed assertion: "p[i] == 0"

[Eugene Grosbein]

Hi!

While trying numerous variants of building FreeBSD/mips and booting them
on TL WDR3600, I found a variant that reliably fails same way:

Trying to mount root from ufs:map/rootfs.uncompress []...
warning: no time-of-day clock registered, system time will not be set accurately
start_init: trying /sbin/init
<jemalloc>: jemapid 13 (sh), uid 0: exited on signal 6
lloc_arena.c:363: Failed assertion: "p[i] == 0"
Oct 13 16:10:57 init: /bin/sh on /etc/rc terminated abnormally, going to single user mode
Enter full pathname of shell or RETURN for /bin/sh:

What does this error mean?