[Crash-utility] crash enhancements proposal

[Maneesh Soni]

On Fri, May 05, 2006 at 09:34:39AM +0200, Michael Holzheu wrote:
> crash-utility-bounces at redhat.com wrote on 05/05/2006 09:06:55 AM:
> > > For lcrash (lkcdutils) we have a patch, which provides
> > > functionality to create an elf core dump out of a
> > > system crash dump. This core dump can
> > > then be processed with gdb. We already have code to
> > > include swap devices and files.
> > >
> > > Maybe that is also one option, which should be considered
> > > here.
> >
> > If I am not wrong you meant, that "lcrash" is able to show user space
> stack
> > backtrace because the dump includes data from swap devices & files?
> > Just wondering if you have used "crash" in the same manner?
> >
> 
> There exist a patch for an older version of lcrash which implements
> the following functionality:
> 
> * read in swap files, when you start lcrash. Something like:
> >> lcrash System.map dump Kerntypes swap1 swap2 ....
> The swapfiles have to be saved of course at boot time
> after a system crash.
> 
> * implement a core command in lcrash:
> >> core <process ID of process XY>
> This writes an elf core file for process XY to disk.
> 
> After you have the core file, you can use gdb
> to analyze the userspace problem:
> 
> gdb XY core
> 
> Any more questions?
 
Thanks, I got it now. But IMHO this functionality more looks like part of 
crash dumping mechanism than crash analysis tool. In anycase it should be
useful.

Maneesh