Systemsoftware
2-42
System- and communication configuring D7-SYS - SIMADYN D
Edition 03.2001
The symbols output on the 7-segment display have the following
significance:
Steady
:
CPU module was shutdown by another module.
Flashing
: Fatal error on this CPU module
(error cause).
Example for an error protocol (error report) for fatal system errors
Information on the last crash:
Time:
01.01.93
04:16:24.9294 h
Crash instant
ID:
#5 CPU
Supplementary ID:
28 (unaligned instruction fetch)
Crash cause
EPC:
0x04C4F19A
Crash address and
Return jump address:
0x801201f8
address of the function call
Running task:
T2
Started levels:
T2(NRM),T5(NRM),BACKGROUND
The running and started tasks
Last processed FB:
FP-KRUMMS.AY0815 (Typ:
ADD8F)
at the crash instant as well as
(ALE: 0x80107D84
CODE:
the processed function on the
0x801201E0)
data- and code areas
Last L-bus access:
Data on the system bus accesses.
- Access type:
q_read_2byte
This data is especially interesting,
- BUS address:
0xB0F25874
if an erroneous bus access is
- Retries:
0
specified as the cause of the crash
Last C-bus access:
specified (NMI) and supplementary
- Access type:
q_read_2byte
ID.
- BUS address:
0xB4F400B4
- Retries:
0
Register dump of all process
registers
The processor status at the crash instant:
Especially important:
EPC
: 0x04C4F19A
BadVAddr: 0x04C4F19A
EPC (crash address, as above) and
Status
: 0xF000FC14
mdlo
: 0x04C4F19A
BadVAddr (bad virtual address,
fpc_csr : 0x00000F04
address which was erroneously
accessed(mainly for ID TLB and
CPU))
CAUTION: The value of a0, a1 (and possibly a2) is not
valid!
r00/0 : 0x00000000
r01/at: 0x00000000
r02/v0: 0x00000001
r03/v1: 0xB8803000
r04/a0: 0x80064FC8
r05/a1: 0x80064F44
r06/a2: 0x0000000A
r07/a3: 0x00000000
r08/t0: 0x80064FC4
r09/t1: 0x80065048
r10/t2: 0x19999999
r11/t3: 0x00000000
r12/t4: 0x04C4F19A
r13/t5: 0x8007FE90
r14/t6: 0x00000000
r15/t7: 0x00000000
r16/s0: 0x800650CC
r17/s1: 0x8006511C
r18/s2: 0x00000000
r19/s3: 0x8006548C
r20/s4: 0x8006548C
r21/s5: 0x00000020
r22/s6: 0x800812E0
r23/s7: 0x80400000
r24/t8: 0xFFFFFFFF
r25/t9: 0x8007FE90
r26/k0: 0x00000210
r27/k1: 0x04C4F19A
r28/gp: 0x80088BA0
r29/sp: 0x80064EA8
r30/s8: 0x04C4F19A
r31/ra: 0x801201f8
d00:
+Denorm
d02: +6.01
d04:
+Denorm
d06: +9.999000e-01
d08: +4.01
d10:
+Denorm
d12:
+Denorm
d14:+2.154
d16: +3.03
d18: +4.01
d20:
QNaN
d22:+8.298
d24: -1.818767e-12
d26:-1.306
d28:-3.249
d30:-2.374690e-237
f00: +4.01
f02: +0.00
f04: +4.01
f06: +4.05
f08: +0.00
f10:
+Denorm
f12: +4.01
f14: -1.37
f16: +1.03
f18: +0.00
f20: -1.38
f22:
QNaN
f24:
QNaN
f26:
QNaN
f28: -6.835168e-27
f30: -4.550802e-04
----------------------------- End of the diagnostics -
-----------------------------
A fatal system error can have the following causes (ID codes). A
supplementary ID describes the error cause in more detail.
Supplementary ID code (precise description)
Causes of fatal
error
}