** Have you never seen a Cisco crash? by ROCKY13 2010/02/25 18:02
** Have you never seen a Cisco crash?
** Have you never seen a Cisco crash?
ROCKY13 2010/02/25 18:03
It is not common see a
Cisco crash: Software
forced crash, Bus Error,
Software watchdog
timeout, and so on
But if you would do it,
there is a pretty trick :
its the test crash
command, an hidden IOS
command. This can help
you if you are lucky
enough to have the real
crash exactly like one of
those you can test with
test crash command.
It is not common see a
Cisco crash: Software
forced crash, Bus Error,
Software watchdog
timeout, and so on
But if you would do it,
there is a pretty trick :
its the test crash
command, an hidden IOS
command. This can help
you if you are lucky
enough to have the real
crash exactly like one of
those you can test with
test crash command.
ROCKY13 2010/02/25 18:04
Below, the test crash
menu:
C i s c o z i ne # t e s t c r a s h
W A R N I N G : C o m m a nd s e l e c t i on s m a r k e d w i t h ' ( c r a s h r ou t e r ) ' w i l l c r a s h
r ou t e r w he n i s s ue d . H o w e v e r a s e l e c t i on ' C ' w i l l ne e d t o
be i s s ue d IM M ED I A TE L Y be f o r e t he s e s e l e c t i on s t o e na b l e t he m.
T y pe t he nu m be r f o r t he s e l e c t e d c r a s h :
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1 ( c r a s h r ou t e r ) Bu s E r r o r , due t o i n v a l i d a dd r e s s a c c e s s
2 ( c r a s h r ou t e r ) Bu s E r r o r , due t o pa r i t y e r r o r i n M a i n m e m o r y
3 ( c r a s h r ou t e r ) Bu s E r r o r , due t o pa r i t y e r r o r i n I /O m e m o r y
4 ( c r a s h r ou t e r ) A dd r e s s E r r o r , due t o f e t c h i ng c ode f r o m odd a dd r e s s
5 ( c r a s h r ou t e r ) J u m p t o z e r o
6 ( c r a s h r ou t e r ) S o f t w a r e f o r c e d c r a s h
7 ( c r a s h r ou t e r ) I l l e g a l r e a d o f a dd r e s s z e r o
8 ( c r a s h r ou t e r ) D i v i de b y z e r o
9 ( c r a s h r ou t e r ) C o r r up t m e m o r y
C E na b l e c r a s h r ou t e r s e l e c t i on m a r k e d w i t h ( c r a s h r ou t e r )
R ( c r a s h r ou t e r ) U s e r e n t e r r e a d bu s e r r o r a dd r e s s
U ( c r a s h r ou t e r ) U s e r e n t e r wr i t e bu s e r r o r a dd r e s s
W ( c r a s h r ou t e r ) S o f t w a r e w a t c hdog t i m e ou t ( * * * W a t c h D og T i m e ou t * * * )
w ( c r a s h r ou t e r ) P r o c e s s w a t c hdog t i m e ou t ( S YS - 2 - W A TC H D O G )
d D i s a b l e c r a s h i n f o c o l l e c t i on
e E na b l e c r a s h i n f o c o l l e c t i on
i D i s p l a y c on t e n t s o f c u r r e n t c r a s h i n f o f l a s h f i l e
m W r i t e c r a s h i n f o on c r a s h i n f o R A M
n C ha ng e c r a s h i n f o f l a s h f i l e na m e
q E x i t c r a s h m e nu
s S a v e c r a s h i n f o t o c u r r e n t c r a s h i n f o f l a s h f i l e
c C l o s e c u r r e n t c r a s h i n f o f l a s h f i l e
t W r i t e c r a s h i n f o on c on s o l e TTY
x E x i t c r a s h m e nu
?
Below, the test crash
menu:
C i s c o z i ne # t e s t c r a s h
W A R N I N G : C o m m a nd s e l e c t i on s m a r k e d w i t h ' ( c r a s h r ou t e r ) ' w i l l c r a s h
r ou t e r w he n i s s ue d . H o w e v e r a s e l e c t i on ' C ' w i l l ne e d t o
be i s s ue d IM M ED I A TE L Y be f o r e t he s e s e l e c t i on s t o e na b l e t he m.
T y pe t he nu m be r f o r t he s e l e c t e d c r a s h :
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1 ( c r a s h r ou t e r ) Bu s E r r o r , due t o i n v a l i d a dd r e s s a c c e s s
2 ( c r a s h r ou t e r ) Bu s E r r o r , due t o pa r i t y e r r o r i n M a i n m e m o r y
3 ( c r a s h r ou t e r ) Bu s E r r o r , due t o pa r i t y e r r o r i n I /O m e m o r y
4 ( c r a s h r ou t e r ) A dd r e s s E r r o r , due t o f e t c h i ng c ode f r o m odd a dd r e s s
5 ( c r a s h r ou t e r ) J u m p t o z e r o
6 ( c r a s h r ou t e r ) S o f t w a r e f o r c e d c r a s h
7 ( c r a s h r ou t e r ) I l l e g a l r e a d o f a dd r e s s z e r o
8 ( c r a s h r ou t e r ) D i v i de b y z e r o
9 ( c r a s h r ou t e r ) C o r r up t m e m o r y
C E na b l e c r a s h r ou t e r s e l e c t i on m a r k e d w i t h ( c r a s h r ou t e r )
R ( c r a s h r ou t e r ) U s e r e n t e r r e a d bu s e r r o r a dd r e s s
U ( c r a s h r ou t e r ) U s e r e n t e r wr i t e bu s e r r o r a dd r e s s
W ( c r a s h r ou t e r ) S o f t w a r e w a t c hdog t i m e ou t ( * * * W a t c h D og T i m e ou t * * * )
w ( c r a s h r ou t e r ) P r o c e s s w a t c hdog t i m e ou t ( S YS - 2 - W A TC H D O G )
d D i s a b l e c r a s h i n f o c o l l e c t i on
e E na b l e c r a s h i n f o c o l l e c t i on
i D i s p l a y c on t e n t s o f c u r r e n t c r a s h i n f o f l a s h f i l e
m W r i t e c r a s h i n f o on c r a s h i n f o R A M
n C ha ng e c r a s h i n f o f l a s h f i l e na m e
q E x i t c r a s h m e nu
s S a v e c r a s h i n f o t o c u r r e n t c r a s h i n f o f l a s h f i l e
c C l o s e c u r r e n t c r a s h i n f o f l a s h f i l e
t W r i t e c r a s h i n f o on c on s o l e TTY
x E x i t c r a s h m e nu
?
ROCKY13 2010/02/25 18:05
To generate a Cisco crash,
type C to enable Cisco
crash feature. Then select
the crash type that you
would generate.
How Cisco test crash
command works?
In this example, I have
selected the s option to
save crashinfo to the
flash. The file will be
named like:
crashinfo_YYYYMMDD-
hhmmss, where:
YYYY is the year, like 2009
MM is the month, like 06
DD is the day, like 18
hh are the hours, like 15
mm are the minutes, like
03
ss are the seconds, like 34
As you can see, the file
saved on the flash
memory (due a Software
forced crash, option #6)
could be read with the
command more.
Remember that it is not
easy understand the
crashinfo file
To generate a Cisco crash,
type C to enable Cisco
crash feature. Then select
the crash type that you
would generate.
How Cisco test crash
command works?
In this example, I have
selected the s option to
save crashinfo to the
flash. The file will be
named like:
crashinfo_YYYYMMDD-
hhmmss, where:
YYYY is the year, like 2009
MM is the month, like 06
DD is the day, like 18
hh are the hours, like 15
mm are the minutes, like
03
ss are the seconds, like 34
As you can see, the file
saved on the flash
memory (due a Software
forced crash, option #6)
could be read with the
command more.
Remember that it is not
easy understand the
crashinfo file
Someone 2010/02/25 18:30
My dear brother... Can u please use a lang which can be understandeble for 2wapers?
My dear brother... Can u please use a lang which can be understandeble for 2wapers?
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