From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: Xen 4 serial hangs during boot Date: Fri, 20 Jul 2012 19:05:44 +0100 Message-ID: <50099DF8.7090800@citrix.com> References: <4E95EBD6.7010400@theshore.net> <20111013104654.GB44937@ocelot.phlegethon.org> <500999DD.1010708@theshore.net> <50099A2F.9030907@citrix.com> <50099C62.20802@theshore.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <50099C62.20802@theshore.net> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: "Christopher S. Aker" Cc: xen devel List-Id: xen-devel@lists.xenproject.org On 20/07/12 18:58, Christopher S. Aker wrote: > On 7/20/12 1:49 PM, Andrew Cooper wrote: >> Is this an HP box by any chance, and are you accessing serial over iLO? > It is not. It's a SM motherboard with an on board UART 16550, which > we're booting with xen args "com1=115200,8n1 console=com1". Oh interesting. We periodically see this with HP kit, but nothing else which is why we assumed it was iLO specific. Perhaps it is not after all. As for suggestions, try manually prodding port 3f8 to see whether the UART is actually working? Alternatively, use `xl debug-keys` and `xl dmesg` to see whether you can provoke it back to life. > > -Chris > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel -- Andrew Cooper - Dom0 Kernel Engineer, Citrix XenServer T: +44 (0)1223 225 900, http://www.citrix.com