uvm_fault(0xfffffd806c233010, 0x18, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at      mtx_enter+0x59: movq    0(%r14),%rax
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
mtx_enter(18) at mtx_enter+0x59 sys/kern/kern_lock.c:319
clockintr_unbind(ffff800001495230,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375
dt_ioctl_record_stop(ffff800001437f80) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:576
dtclose(11e5f,81,2000,ffff80002a79b220) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,81,2000,ffff80002a79b220) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232
spec_close(ffff80002a85faf0) at spec_close+0x45f sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd806c23b550,81,fffffd8007bfb6e8,ffff80002a79b220) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156
vn_closefile(fffffd806c6a2f10,ffff80002a79b220) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd806c6a2f10,ffff80002a79b220) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615
fdrop(fffffd806c6a2f10,ffff80002a79b220) at fdrop+0x126 sys/kern/kern_descrip.c:1267
closef(fffffd806c6a2f10,ffff80002a79b220) at closef+0x18d sys/kern/kern_descrip.c:1251
fdfree(ffff80002a79b220) at fdfree+0x115 sys/kern/kern_descrip.c:1182
exit1(ffff80002a79b220,0,0,1) at exit1+0x58f sys/kern/kern_exit.c:214
sys_exit(ffff80002a79b220,ffff80002a85fe60,ffff80002a85fdb0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a85fe60) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a85fe60) at syscall+0x97e sys/arch/amd64/amd64/trap.c:579
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7ef72d53e260, count: 1
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