From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: [PATCH] xen/arm: Handle platforms with edge-triggered virtual timer Date: Fri, 28 Nov 2014 15:23:21 +0000 Message-ID: <54789369.4020405@linaro.org> References: <1417187826-5491-1-git-send-email-julien.grall@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail6.bemta4.messagelabs.com ([85.158.143.247]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1XuNOI-0004GY-P5 for xen-devel@lists.xenproject.org; Fri, 28 Nov 2014 15:23:26 +0000 Received: by mail-wi0-f182.google.com with SMTP id h11so11552723wiw.3 for ; Fri, 28 Nov 2014 07:23:25 -0800 (PST) In-Reply-To: <1417187826-5491-1-git-send-email-julien.grall@linaro.org> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xenproject.org Cc: stefano.stabellini@citrix.com, tim@xen.org, ian.campbell@citrix.com List-Id: xen-devel@lists.xenproject.org I forgot to add "for 4.5" in the commit title. On 28/11/14 15:17, Julien Grall wrote: > This patch is a bug fix candidate for Xen 4.5 and backport for Xen 4.4. > It affects at least Xgene platform and ARMv8 models where Xen may > randomly crash. Thinking a bit more to this. I believe it's possible for a guest to crash the host if the next timer deadline is short enough and it execute a yield. Might be unlikely ... Regards, -- Julien Grall