linux-kernel - Re: [PATCH] ramoops appears geared to not support ARM

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <4EAD360D.6010004@gmail.com>
Date:	Sun, 30 Oct 2011 12:33:33 +0100
From:	Marco Stornelli <marco.stornelli@...il.com>
To:	Bryan Freed <bfreed@...omium.org>
CC:	linux-kernel@...r.kernel.org, sergiu@...omium.org,
	akpm@...ux-foundation.org, msb@...omium.org, seiji.aguchi@....com
Subject: Re: [PATCH] ramoops appears geared to not support ARM

Il 30/10/2011 03:07, Bryan Freed ha scritto:
> Right, and that is what I do to get ARM working.  The reserve() function
> calls memblock_reserve() to reserve the memory for RAMOOPS.  Keeping it
> part of main memory (by not using memblock_remove()) gets the memory
> properly mapped.
>

According to Russell, it needs to use memblock_remove to exclude that 
piece of memory.

> The problem I think we need to resolve is that this makes the ramoops
> driver messy.

I agree. Indeed I think we don't need to do anything in the driver. The 
problem is only how to exclude a piece of memory from kernel main memory 
view. For x86 it's trivial, for ARM it doesn't, but it's still possible.

Marco
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/