From mboxrd@z Thu Jan 1 00:00:00 1970 From: Olaf Hering Subject: Re: sudden hang on boot on AMD Notebook Date: Wed, 1 Apr 2015 15:35:43 +0200 Message-ID: <20150401133543.GA970@aepfle.de> References: <20150330121404.GA4578@aepfle.de> <5519414F.8020207@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <5519414F.8020207@citrix.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: Andrew Cooper Cc: xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org On Mon, Mar 30, Andrew Cooper wrote: > On 30/03/15 13:14, Olaf Hering wrote: > > Just last week I was running staging to test pvscsi on this HP ProBook > > 6555b, since around Wednesday I think. But todays staging fails to boot. > > So I started a bisect in xen/, but every attempt to boot xen.gz results > > in a hang at the same place. Even going back to the state of 4.5.0. > > Any idea what may cause this hang, and how I can debug it further? > This smells like an external factor. Have you changed compiler in that > time, altered the BIOS settings or updated the firmware? Nothing like that. I carried the thing around for a week, and started to run Xen during that time. Since Saturday its back in its usual place and position. I think I ran Xen on that day, but the bootlogs have no indication if I really did. Yesterday after some poking around in the firmware and running the selftests I was able to boot Xen again. But today it failed again. > Are you able to use the console debugkeys once it gets into this state? No, it does not react to anything. I think a triple CTRL-A and 'h' should print the help text? I see the cursor blinking on the display, not sure if thats an indication that Xen is still alive. Olaf