linux-kernel - Re: vvar, gup && coredump

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Message-ID: <20150312174653.GA13086@redhat.com>
Date:	Thu, 12 Mar 2015 18:46:53 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	Jan Kratochvil <jan.kratochvil@...hat.com>,
	Sergio Durigan Junior <sergiodj@...hat.com>,
	GDB Patches <gdb-patches@...rceware.org>,
	Pedro Alves <palves@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: vvar, gup && coredump

On 03/12, Oleg Nesterov wrote:
>
> Yes, this is true. OK, lets not dump it.

OTOH. We can probably add ->access() into special_mapping_vmops, this
way __access_remote_vm() could work even if gup() fails ?

Jan, Sergio. How much do we want do dump this area ? The change above
should be justified.

Oleg.

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