Initial information


It's always good practice to get initial information. How long was the system up? In the case of a multiple CPU system, how many CPUs are on line and what where they doing? We will use some of the macros we wrote earlier.

 Hiya on p4d-2000a...  cp $HOME/adb/mymacros/* .  Hiya on p4d-2000a...  adb -k unix.0 vmcore.0  physmem fd87  $<initial-info  Initial Dump Information                  ========================  utsname+0x101:  dragon        Hostname                  1994 Aug 30 09:08:12         Time of boot  time:  time:           1994 Sep  1 14:30:48         Time of crash  $<msgbuf  msgbuf:    msgbuf:         magic           size            bufx            bufr                    8724786         1fe8            16a             0    msgbuf+0x10:    Y\    panic[cpu0]/thread=0xe18b1ec0: zero                    syncing file systems...panic[cpu0]/thread=0xe18d8ec0: panic sync                     timeout                    12081 static and sysmap kernel pages                      176 dynamic kernel data pages                      565 kernel-pageable pages                        0 segkmap kernel pages                        0 segvn kernel pages                        0 current user process pages                    12822 total pages (12822 chunks)                    dumping to vp f584c804, offse  *panicstr/s  cpr_info+0x13c4:                zero  $<proconcpu  ncpus:    ncpus:          Number of CPUS:  4    cpu0+8:  e18d8ec0  Thread address    0xe18d8f60:     e00ee110        Proc address    p0+0x260:       sched                    Next CPU...    tcl_endptopen+0x50b0:           e18f1ec0        Thread address    0xe18f1f60:     e00ee110        Proc address    p0+0x260:       sched                    This CPU was idle                    Next CPU...    tcl_endptopen+0x3cb0:           e1914ec0        Thread address    0xe1914f60:     e00ee110        Proc address    p0+0x260:       sched                    This CPU was idle                    Next CPU...    tcl_endptopen+0x38b0:           e1937ec0        Thread address    0xe1937f60:     e00ee110        Proc address    p0+0x260:       sched                    This CPU was idle 

Based on what we see so far, the system was up for over two days when it was manually forced to panic. The "panic: zero" tells us this.



PANIC. UNIX System Crash Dump Analysis Handbook
PANIC! UNIX System Crash Dump Analysis Handbook (Bk/CD-ROM)
ISBN: 0131493868
EAN: 2147483647
Year: 1994
Pages: 289
Authors: Chris Drake

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