uvm_fault(0xfffffd806ccf8d00, 0x18, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at      mtx_enter+0x6e: movq    0(%r14),%r15
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
mtx_enter(18) at mtx_enter+0x6e sys/kern/kern_lock.c:549
clockintr_unbind(ffff800001634e30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375
dt_ioctl_record_stop(ffff800001620e00) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589
dtclose(31e5f,1,2000,ffff80002a852a90) at dtclose+0xd9 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(31e5f,1,2000,ffff80002a852a90) at dtclose+0xd9 sys/dev/dt/dt_dev.c:239
spec_close(ffff80003a8e4fc0) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd806a52c210,1,fffffd8007ffd680,ffff80002a852a90) at VOP_CLOSE+0x129 sys/kern/vfs_vops.c:156
vn_closefile(fffffd806b296720,ffff80002a852a90) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd806b296720,ffff80002a852a90) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615
fdrop(fffffd806b296720,ffff80002a852a90) at fdrop+0x121 sys/kern/kern_descrip.c:1281
closef(fffffd806b296720,ffff80002a852a90) at closef+0x190 sys/kern/kern_descrip.c:1265
fdfree(ffff80002a852a90) at fdfree+0x115 sys/kern/kern_descrip.c:1196
exit1(ffff80002a852a90,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff80002a852a90,ffff80003a8e5320,ffff80003a8e5270) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003a8e5320) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003a8e5320) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x70a5a389cc70, count: 1
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