From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michal Fiala Subject: Re: Xen 4.2.1, linux kernel 3.7.5 crashed while reboot Date: Mon, 04 Mar 2013 17:37:32 +0100 Message-ID: <5134CDCC.9050605@mfiala.net> References: <512CC78B.4080606@mfiala.net> <512CEB5C02000078000C1272@nat28.tlf.novell.com> <512CE2C6.3040907@mfiala.net> <512CF1E702000078000C12C7@nat28.tlf.novell.com> <512CE581.7020308@mfiala.net> <512CF62C02000078000C12F1@nat28.tlf.novell.com> <20130226220100.GA22418@phenom.dumpdata.com> <512DD37102000078000C1569@nat28.tlf.novell.com> <512DDB13.5000105@mfiala.net> <20130227154106.GF24932@phenom.dumpdata.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20130227154106.GF24932@phenom.dumpdata.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Konrad Rzeszutek Wilk Cc: Jan Beulich , xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org On 02/27/2013 04:41 PM, Konrad Rzeszutek Wilk wrote: > On Wed, Feb 27, 2013 at 11:08:19AM +0100, Michal Fiala wrote: >> On 02/27/2013 09:35 AM, Jan Beulich wrote: >>>>>> On 26.02.13 at 23:01, Konrad Rzeszutek Wilk wrote: >>>> The thing is is that native_machine_emergency_restart is not suppose >>>> to be called. The baremetal machine_ops has that, but we over-write >>>> it with our own and he should get: >>>> >>>> .emergency_restart = xen_emergency_restart, >>>> >>>> ! So how did his .emergency_restart value get over-written by >>>> native_machine_emergency_restart? >>> >>> Indeed. So perhaps the -hardened tag indicates some patching >>> having gone on that we're unaware of. Michal - without knowing >>> what your kernel does, I don't think we can really help. And >>> please remember that this is xen-devel, not xen-users, so we >>> expect you to be able to do at least a minimal share of the work >>> needed to find out what is going on. First step would probably >>> be to try plain 3.7.5 (or subsequent 3.7.x). >>> >>> Jan >>> >> >> We are using gentoo hardened sources (kernel). Hardened-sources is based >> on the official Linux kernel and is targeted at our users running Gentoo >> on server systems. It provides patches for the various subprojects of >> Gentoo Hardened (such as support for LSM/SELinux and grsecurity), >> together with stability/security-enhancements. >> See http://www.gentoo.org/doc/en/gentoo-kernel.xml >> >> I will try gentoo-sources (lightly patched to fix security problems, >> kernel bugs, and to increase compatibility with the more uncommon system >> architectures) and vanilla-sources (official kernel sources released on >> http://www.kernel.org/) > > Excellent. Thanks. The problem was fixed by changing kernel to gentoo-sources. So there is a problem in hardened-sources. Thanks M. >> >> Thanks >> >> Michal >> >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@lists.xen.org >> http://lists.xen.org/xen-devel >> > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel >