| 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
| ||
|
Message-ID: <20150506081617.GB20611@8bytes.org> Date: Wed, 6 May 2015 10:16:17 +0200 From: Joerg Roedel <joro@...tes.org> To: Dave Young <dyoung@...hat.com> Cc: "Li, Zhen-Hua" <zhen-hual@...com>, dwmw2@...radead.org, indou.takao@...fujitsu.com, bhe@...hat.com, vgoyal@...hat.com, iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org, kexec@...ts.infradead.org, alex.williamson@...hat.com, ddutile@...hat.com, ishii.hironobu@...fujitsu.com, bhelgaas@...gle.com, doug.hatch@...com, jerry.hoemann@...com, tom.vaden@...com, li.zhang6@...com, lisa.mitchell@...com, billsumnerlinux@...il.com, rwright@...com Subject: Re: [PATCH v9 0/10] iommu/vt-d: Fix intel vt-d faults in kdump kernel On Wed, May 06, 2015 at 09:46:49AM +0800, Dave Young wrote: > For the original problem, the key issue is dmar faults cause kdump kernel > hang so that vmcore can not be saved. I do not know the reason why it hangs > I think it is acceptable if kdump kernel boot ok with some dma errors.. It hangs because some devices can't handle the DMAR faults and the kdump kernel can't initialize them and will hang itself. For that it doesn't matter whether the fault was caused by a read or write request. 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/
Powered by blists - more mailing lists