ktrace shows we appear to be spinning on kevent and gettime. fd 7 is the tty.
Not sure what went wrong. Happened just after typing "root" at login. Never
got to password. Reboot, fsck, appears to work now.
_vmd vmd 75033 7 / 182448 crw-rw-rw- rw ptypt
75033 vmd CALL clock_gettime(CLOCK_MONOTONIC,0x6cdf3156030)
75033 vmd STRU struct timespec { 366729.439807068 }
75033 vmd RET clock_gettime 0
75033 vmd CALL kevent(0,0x6ce1a957800,0,0x6cd99f5c800,64,0x6cdf3156000)
75033 vmd STRU struct timespec { 0.003247000 }
75033 vmd STRU struct kevent { ident=7, filter=EVFILT_READ,
flags=0x1<EV_ADD>, fflags=0<>, data=15, udata=0x6cb750a7638 }
75033 vmd RET kevent 1
75033 vmd CALL clock_gettime(CLOCK_MONOTONIC,0x6cdf3156030)
75033 vmd STRU struct timespec { 366729.439816566 }
75033 vmd RET clock_gettime 0
75033 vmd CALL kevent(0,0x6ce1a957800,0,0x6cd99f5c800,64,0x6cdf3156000)
75033 vmd STRU struct timespec { 0.003238000 }
75033 vmd STRU struct kevent { ident=7, filter=EVFILT_READ,
flags=0x1<EV_ADD>, fflags=0<>, data=15, udata=0x6cb750a7638 }
75033 vmd RET kevent 1
75033 vmd CALL clock_gettime(CLOCK_MONOTONIC,0x6cdf3156030)
75033 vmd STRU struct timespec { 366729.439827252 }
75033 vmd RET clock_gettime 0
75033 vmd CALL kevent(0,0x6ce1a957800,0,0x6cd99f5c800,64,0x6cdf3156000)
75033 vmd STRU struct timespec { 0.003227000 }
75033 vmd STRU struct kevent { ident=7, filter=EVFILT_READ,
flags=0x1<EV_ADD>, fflags=0<>, data=15, udata=0x6cb750a7638 }
