linux-kernel - Re: [Fastboot] Kexec with latest kernel fail

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]

Message-ID: <2ea3fae10611092330q551127e0oad87775964fe7251@mail.gmail.com>
Date:	Thu, 9 Nov 2006 23:30:22 -0800
From:	yhlu <yinghailu@...il.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Horms <horms@...ge.net.au>,
	"Fastboot mailing list" <fastboot@...ts.osdl.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [Fastboot] Kexec with latest kernel fail

I found the cause before your mail.

the /proc/iomem doesn't show RAM above 1M.

I have increased linuxbios table at high 0xf0000-0xf0400 to
0xf0000-0x100000. the RAM above 1M show up.

I think root cause in the latest kernel 2.6.19, e820 align increase to 0xffff.
and when it check 0xf0000-0xf0400, will make 0xf0000-0x100000
reserved, and then when it  check 0xf0400-4G, it will fail to reserved
System RAM above 1M.

I will check arch/x86_64/kernel/e820.c about
void __init e820_reserve_resources(void)
tommorrow.

YH
-
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/