Re: mmap'ed memory in core files ?

Christoph Hellwig
2008-07-02T13:30:28Z

On Wed, Jul 02, 2008 at 12:50:27PM +0200, Philippe De Muyter wrote:
> Unfortunately, the part that applies to me (I have tested it) is the next one :
>
> Memory-mapped I/O pages such as frame buffer are never dumped, [...],
> regardless of the coredump_filter value.
>
> Is that a design decision, or a mere finding of the way it is implemented
> now ?

It's an implementation issue, and there are patches queue for 2.6.27
that allow gdb access to these regions, which should be easily
extendable to cover core dumps, too.