linux-kernel - Re: PATCH] x86_64: make bootmap

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: Windows password security audit tool. GUI, reports in PDF.

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

Date:	Wed, 30 Jan 2008 20:08:32 +0100
From:	Andi Kleen <ak@...e.de>
To:	Yinghai Lu <Yinghai.Lu@....com>
Cc:	Ingo Molnar <mingo@...e.hu>, Christoph Lameter <clameter@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: PATCH] x86_64: make bootmap_start page align v4


> +	/*
> +	 * when you have 64g or 128g ram, bootmap will be pushed after bss
> +	 * section, the bootmap we get from early_node_mem via find_e820_area
> +	 * is not page aligned, we need to round it up to  make sure bootmap
> +	 * is not overlapped with bss section
> +	 */
> +	bootmap_start = round_up(bootmap_start, PAGE_SIZE);

The better solution would be to PAGE_ALIGN() the addresses
in bad_addr(). Or better fix it that no such alignment is needed to not 
get conflicts. 

-Andi
--
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/