getting stack trace from core

[dharmadeep]

Hi,



As far as I know, a core file contains , stack frames of all the
lwps when the process crashed. Is there any command which AIX433
provides ,which I can use to get the stack trace(mere addresses
will do) ,given a core file( from a 64 bit app) ? As far as I know
, dbx also requires the executable to be present. Some platforms
provide a command pstack ,which when supplied a core file ,gives
the stack trace.



Thanks,

dharmadeep


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[Jim Shaffer]

"dharmadeep" <member39766@dbforums.com> wrote in message
news:3376162.1063726532@dbforums.com...

>
> Hi,
>
>
>
> As far as I know, a core file contains , stack frames of all the
> lwps when the process crashed. Is there any command which AIX433
> provides ,which I can use to get the stack trace(mere addresses
> will do) ,given a core file( from a 64 bit app) ? As far as I know
> , dbx also requires the executable to be present. Some platforms
> provide a command pstack ,which when supplied a core file ,gives
> the stack trace.

If possible, AIX logs an entry in the system error log when a core dump is
generated. This entry contains the call/return stack. To see such entries,
use

errpt -aJ CORE_DUMP

where CORE_DUMP is the label for that event.
--
Jim Shaffer

[Mark Taylor]

if you havent got the executable, then how come you have the core ?



to view the stack trace in the errpt, you are going to need to be on the
machine where the core occured.. and seeing as you state that you havent
got the executable, then either you are not on the correct box or
someone removed the executable.



If you want to access the core on another machine with dbx you can
collect all the data from the system where the core occured by running
the snapcore command which collects all the libs and executables for the
core file for support.



man snapcore (433 ML08 and later - it was a backport from v5)



hope this helps

Mark


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