linux-kernel - Re: [PATCH] intel-iommu:make identity

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-prev] [day] [month] [year] [list]

Date:	Sat, 22 Oct 2011 10:08:21 +0900
From:	Simon Horman <horms@...ge.net.au>
To:	Dave Young <dyoung@...hat.com>
Cc:	kexec@...ts.infradead.org, iommu@...ts.linux-foundation.org,
	vgoyal@...hat.com, linux-kernel@...r.kernel.org, luyu@...hat.com
Subject: Re: [PATCH] intel-iommu:make identity_map default for crash dump

On Fri, Oct 21, 2011 at 08:31:54PM +0800, Dave Young wrote:
> kdump kernel sometimes will get DMAR faults which
> is caused by random in-flight dma from 1st kernel
> 
> Here make the identity_mapping as default for this case

This seems reasonable to me. Although I am curious to know
what the side effects of using IDENTMAP_ALL might be.
--
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/