[PATCH] x86/kexec: Exclude GART aperture from vmcore

Jiri Bohac jbohac at suse.cz
Tue Nov 7 07:34:28 PST 2017

On Tue, Nov 07, 2017 at 02:42:12PM +0100, Jiri Bohac wrote:
> On Tue, Nov 07, 2017 at 07:39:56PM +0800, Baoquan He wrote:
> > don't worry about the user space kexec utility either. 
> What's the problem with the userspace kexec? The bug is in
> reading /proc/vmcore by makedumpfile. kexec would only operate
> within the preallocated crashkernel area, right?

right, I see it (without -s the kexec userspace creates the ELF header
later used the second kernel for /proc/vmcore).

No idea how to fix that nicely...

Jiri Bohac <jbohac at suse.cz>
SUSE Labs, Prague, Czechia

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