uvm_fault(0xfffffd8068940018, 0x18, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at      mtx_enter+0x6e: movq    0(%r14),%rax
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
mtx_enter(18) at mtx_enter+0x6e sys/kern/kern_lock.c:335
clockintr_unbind(ffff800001594530,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375
dt_ioctl_record_stop(ffff800001438580) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582
dtclose(11e5f,81,2000,ffff800038150558) at dtclose+0xd9 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,81,2000,ffff800038150558) at dtclose+0xd9 sys/dev/dt/dt_dev.c:232
spec_close(ffff80003c9bb020) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd80601e6048,81,fffffd8007bfb548,ffff800038150558) at VOP_CLOSE+0x129 sys/kern/vfs_vops.c:156
vn_closefile(fffffd805a6be3c8,ffff800038150558) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd805a6be3c8,ffff800038150558) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615
fdrop(fffffd805a6be3c8,ffff800038150558) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd805a6be3c8,ffff800038150558) at closef+0x190 sys/kern/kern_descrip.c:1264
fdfree(ffff800038150558) at fdfree+0x115 sys/kern/kern_descrip.c:1195
exit1(ffff800038150558,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff800038150558,ffff80003c9bb380,ffff80003c9bb2d0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c9bb380) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c9bb380) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b664c78ea50, count: 1
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