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: +6.400000e+01 d04: +Denorm d06: +9.999000e-01
d08: +4.687500e+01 d10: +Denorm d12: +Denorm d14:+2.660285e+154
d16: +3.000001e+03 d18: +4.687500e+01 d20: QNaN d22:+8.329648e+298
d24: -1.818767e-12 d26:-1.227518e+306 d28:-3.691391e+249 d30:-2.374690e-237
f00: +4.787490e+01 f02: +0.000000e+00 f04: +4.687500e+01 f06: +4.764729e+05
f08: +0.000000e+00 f10: +Denorm f12: +4.787490e+01 f14: -1.960343e+37
f16: +1.024000e+03 f18: +0.000000e+00 f20: -1.693935e+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
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