linux-kernel - Re: [PATCH 1/2 V2] iommu/amd: Add workaround for ERBT1312

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, 24 Apr 2013 12:46:17 +0200
From:	Joerg Roedel <joro@...tes.org>
To:	Don Dutile <ddutile@...hat.com>
Cc:	Suravee Suthikulanit <suravee.suthikulpanit@....com>,
	iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2 V2] iommu/amd: Add workaround for ERBT1312

On Tue, Apr 23, 2013 at 09:22:45AM -0400, Don Dutile wrote:
> Given other threads on this mail list (and I've seen crashes with same problem)
> where this type of logging during a flood of IOMMU errors will lock up the machine,
> is there something that can be done to break the do-while loop after n iterations
> have been exec'd, so the kernel can progress during a crash ?

In the case of an IOMMU error flood this loop will only run until the
event-log/ppr-log overflows. So it should not turn into an endless loop.


	Joerg


--
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/