linux-kernel - Re: memory beyond4GB invisible to the system even though CONFIG

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:	Thu, 15 Jan 2009 14:50:17 -0500
From:	"James Kirin" <james.kirin40@...il.com>
To:	"Yinghai Lu" <yinghai@...nel.org>
Cc:	"Roland Dreier" <rdreier@...co.com>, linux-kernel@...r.kernel.org
Subject: Re: memory beyond4GB invisible to the system even though CONFIG_HIGHMEM64G=y

Hi Yinghai,

> please do
> 1. boot linux with "disable_mtrr_trim" in grub.conf etc
> 2. after booting input:
> echo "base=0x100000000 size=0x20000000 type=write-back" >/proc/mtrr

Thank you for your suggestion.

Unfortunately, booting with disable_mtrr_trim leads to a kernel panic:

[<c0103abb>] kernel_thread_helper+0x7/0x1c
===========
Code: 0c 31 d2 89 e8 e8 c2 f4 ff ff 89 c3 eb 8e 8b 85 cc 00 00 00 89 44 24 10 83
bd ec 00 01 00 04 0f 84 cf 00 00 00 8b 9d f0 00 01 00 <8b> 43 10 3b 43 0c 0f 84
d5 00 00 00 8b 53 10 8b 85 ec 00 01 00
EIP: [<c026bc2f] hid_parser_main+0xcf/0x290 SS:ESP 0068:f7c2bd7c
---[ end trace 34615b445589fbb6 ]---
Kernel panic - not syncing: Attempted to kill init!

I am attaching the kernel config file. The system boots fine if I
remove "disable_mtrr_trim" from lilo.conf (and rerun lilo).

Thank you for any help,

James

Download attachment "kernel.config" of type "application/octet-stream" (46613 bytes)