strange number corruption on pdp11/34

[Jacob Ritorto]

Hi,
  I'm getting all zeroes nearly any time there's supposed to be a large
number output to my terminal.  Does this sound familiar to anyone?

This happened last night on rsx and is also happening today on xxdp.

example xxdp testing rl02:

DRSSM-G2
CZRLK-B-0
CZRLK PERFORMS RANDOM OPERATIONS OF GET STATUS, SEEK, READ, AND WRITE
UNIT IS RL01,RL02
RSTRT ADR 000000
DR>START

CHANGE HW (L)  ? Y

# UNITS (D)  ? 1

UNIT 0
RL11 (L) Y ? Y
BUS ADDRESS (O)  0 ?
VECTOR (O)  0 ?
DRIVE (O)  0 ?
DRIVE TYPE = RL01 (L) Y ? N
BR LEVEL (O)  0 ?

CHANGE SW (L)  ? N

NXT TST MAY ZERO LD UNIT. DOIT ANYWAY?Y

TESTING STARTED

CZRLK HRD ERR  00000 ON UNIT 00 TST 000 SUB 000 PC: 000000
DR ERR
TIME: 00:00:00 RLCS: 000000 DRIVE: 0 DRIVE TYPE = RL00
>> FUNCTION:  WRITE
BEFORE ERR (RLCS): 000000 (RLBA): 000000 (RLDA): 000000 (RLMP): 000000
AT ERR     (RLCS): 000000 (RLBA): 000000 (RLDA): 000000 (RLMP): 000000
DR ERR ADDR = CYL: 000. SUR: 0 SECT: 00.
STATUS WAS: 000000 LST POS: 000000

DR ERR - RECOVERED

CZRLK HRD ERR  00000 ON UNIT 00 TST 000 SUB 000 PC: 000000
DR ERR
TIME: 00:00:00 RLCS: 000000 DRIVE: 0 DRIVE TYPE = RL00
>> FUNCTION:  WRITE
BEFORE ERR (RLCS): 000000 (RLBA): 000000 (RLDA): 000000 (RLMP): 000000
AT ERR     (RLCS): 000000 (RLBA): 000000 (RLDA): 000000 (RLMP): 000000
DR ERR ADDR = CYL: 000. SUR: 0 SECT: 00.
STATUS WAS: 000000 LST POS: 000000

DR ERR - RECOVERED


CZRLK HRD ERR  00000 ON UNIT 00 TST 000 SUB 000 PC: 000000
GARBLED DATA - CAN'T CHECK IT
TIME: 00:00:00 RLCS: 000000 DRIVE: 0 DRIVE TYPE = RL00
>> FUNCTION:  READ
BEFORE ERR (RLCS): 000000 (RLBA): 000000 (RLDA): 000000 (RLMP): 000000
AT ERR     (RLCS): 000000 (RLBA): 000000 (RLDA): 000000 (RLMP): 000000
DR ERR ADDR = CYL: 000. SUR: 0 SECT: 00.

XFER SIZE =  00000. WORDS
000000 000000 000000 000000 000000 000000 000000 000000 000000 000000
000000 000000 000000 000000 000000 000000 000000 000000 000000 000000
000000 000000 000000 000000 000000 000000 000000 000000 000000 000000
000000 000000 000000 000000 000000 000000 000000 000000 000000 000000
000000 000000 000000 000000 000000 000000 000000 000000 000000 000000
000000 000000 000000 000000 000000 000000 000000 000000 000000 000000
000000 000000 000000 000000 000000 000000 000000 000000 000000 000000
000000 000000 000000 000000 000000 000000 000000 000000 000000 000000
000000 000000 000000 000000 000000 000000 000000 000000 000000 000000
000000 000000 000000 000000 000000 000000 000000 000000 000000 000000
000000 000000 000000 000000 000000 000000 000000 000000 000000 000000
000000 000000 000000 000000 000000 000000 000000 000000 000000 000000
000000 000000 000000 000000 000000 000000 000000 000000