Re: [Crash-utility] memory requirement for crash tool
----- "Dave Anderson" <anderson(a)redhat.com> wrote:
----- "Dharmosoth Seetharam" <seetharam_21(a)yahoo.com>
wrote:
> Hi,
>
> I have a question regarding the memory requirement for crash tool
> to start analyzing or extract few command's results from the
> kernel core of size more than 50G.
>
> my system details
> arch : x86_64
> memory: 128M
>
> But I want to analyze kernel core of size 50G+.
>
> Now I am unable to do that.
>
> Can you please tell me how much memory it needs to get atleast "bt"
> information?
No I can't -- I have no idea. 128MB is pretty pitiful. But with
enough swap I would guess that the crash session will come up eventually?
You might try adding "--active" to the command line, which will
only gather task data for the active task on each cpu.
Or try the "--minimal" command line option. You won't have the
"bt"
command available, but the "log" command is -- and with that you can
at least see the kernel-generated backtrace in the log buffer output.
The --minimal mode commands are: log, dis, rd, sym and eval)
Dave