# DF-5016 race campaign panic (transcribed from guest serial boot.log before
# the log was rotated by the next reset; captured 2026-09-26 ~01:11 UTC).
# Context: unpriv race5016 (CONS_HISTORY 25<->250 realloc loop as uid 65534,
# 274432 iterations) x scroll writer (500x80B writes to /dev/ttyv0 as uid
# 65534). The guest died between ssh commands; serial log tail:

panic with 1 spinlocks held
panic: assertion "count & TOK_COUNTMASK" failed in _lwkt_reltokref at /usr/src/sys/kern/lwkt_token.c:458
cpuid = 1
Trace beginning at frame 0xfffff8011815ad28
lwkt_relalltokens() at lwkt_relalltokens+0x80 0xffffffff80679380 
lwkt_relalltokens() at lwkt_relalltokens+0x80 0xffffffff80679380 
panic() at panic+0xda 0xffffffff8065d56a 
lwkt_relalltokens() at lwkt_relalltokens+0x80 0xffffffff80679380 
panic() at panic+0xda 0xffffffff8065d56a 
Debugger("panic")

CPU1 stopping CPUs: 0x0000003d
 stopped
Stopped at      Debugger+0x7c:     movb    $0,0xbdaf09(%rip)
db>