[Crash-utility] using crash for ARM

[Dave Anderson]

----- Original Message -----
> 
> 
> Hi,
> I got the crash up on the target but I get following error.

Well, that's impressive...
 
> WARNING: kernels compiled by different gcc versions:
> ./vmlinux: (unknown)
> live system kernel: 4.4.3

That's a harmless warning, but what do these commands show:

 $ strings vmlinux | grep "Linux version"

and 

 $ cat /proc/version

The gcc-related data in those two strings are being compared.

> crash: cannot open secondary temporary file

When do you see that message?

> 
> I have taken System.map and vmlinux from the same build path.

The System.map file is not necessary if the vmlinux is the kernel
that the live system is running.

Dave

 
> 
> Regards,
> Oza.
> 
> 
> 
> 
> 
> From: Dave Anderson <anderson at redhat.com>
> To: paawan oza <paawan1982 at yahoo.com>; "Discussion list for crash
> utility usage, maintenance and development"
> <crash-utility at redhat.com>
> Sent: Monday, 6 August 2012 8:58 PM
> Subject: Re: [Crash-utility] using crash for ARM
> 
> 
> 
> ----- Original Message -----
> > 
> > 
> > 
> > Hi,
> > 
> > 
> > I would like to use crash utility on ARM.
> > what I understand is there might be two ways to go about it.
> > 
> > 1) cross compile whole crash for arm itself, which doesnt seem to
> > be
> > good option because on arm target we will need lots of depedent
> > packages.
> > 
> > 2) run crash on x86 and have gdbserver/remoter server compiled on
> > target. and have serial connection and so on..
> > 
> > please suggest instructions or any pointers regarding the same.
> > 
> > Regards,
> > Oza.
> 
> If you are talking about running crash on a live ARM system, then
> option #1 is the only possibility. Option #2 does not exist for
> the crash utility; live system access requires either /dev/mem,
> /proc/kcore, or the /dev/crash misc driver.
> 
> Dave
> 
> 
> 
>