From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Christopher S. Aker" Subject: Re: Xen 4 serial hangs during boot Date: Mon, 23 Jul 2012 16:53:33 -0400 Message-ID: <500DB9CD.5060900@theshore.net> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Keir Fraser Cc: Andrew Cooper , xen devel List-Id: xen-devel@lists.xenproject.org On 7/20/12 3:59 PM, Keir Fraser wrote: > Then it is Xen doing something to kill the serial interrupt. ;-) I haven't > seen anything like this reported before. Not sure what to suggest really... > Gather debug output from interrupt-related debug keys (via the xl debug-keys > interface) I suppose. I think that would be 'i' and 'z' keys. That plus Xen > and dom0 boot logs... something might become apparent. We hit this again today, and I grabbed boot and debug-keys output: http://theshore.net/~caker/xen/BUGS/serial/log.txt Thanks, -Chris