panic: pool_p_free: anonpl free list modified: page 0xfffffd80688e0000; item addr 0xfffffd80688e0000; offset 0x0=0xca309a0000000000
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
 149164  30566      0     0x14000      0x200    1  update
*303707  72976      0     0x14000      0x200    0  systqmp
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff8245863e) at panic+0x15c sys/kern/subr_prf.c:207
pool_p_free(ffffffff829118f0,fffffd80688e0f90) at pool_p_free+0x1de sys/kern/subr_pool.c:983
pool_gc_pages(0) at pool_gc_pages+0x255 sys/kern/subr_pool.c:1578
taskq_thread(ffffffff8277c5f0) at taskq_thread+0xec sys/kern/kern_task.c:437
end trace frame: 0x0, count: 10
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