From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Dunlap Subject: Re: Log Messages .... Date: Wed, 2 Dec 2015 16:55:48 +0000 Message-ID: <565F2294.4060204@citrix.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" 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: kumara rathnavel , xen-devel@lists.xen.org Cc: George.Dunlap@eu.citrix.com List-Id: xen-devel@lists.xenproject.org On 02/12/15 16:48, kumara rathnavel wrote: > Hello George, > > Thanks a lot. One more question if I connect serial port will I be able to > see what is happening in xen....without using xen trace .... Please don't top-post. :-) If you set up a serial console you'll be able to get the same output as "xl dmesg". Here's a guide for serial consoles in Xen in case you need it: http://wiki.xenproject.org/wiki/Xen_Serial_Console -George > On 2 Dec 2015 19:34, "George Dunlap" wrote: > >> On Wed, Dec 2, 2015 at 1:49 PM, kumara rathnavel >> wrote: >>> Hello All, >>> >>> I require logs of the Hypercalls made from Guest to the Hypervisor after >> the >>> boot, as xl dmesg provides me with the log messages during the >>> initialisation. >> >> One thing you could look at is xentrace and xenalyze. You can find a >> brief introduction here: >> >> https://blog.xenproject.org/2012/09/27/tracing-with-xentrace-and-xenalyze/ >> >> You can enable Xen tracing on the Xen command-line using the >> "tbuf_size" and "tevt_mask" parameters described here: >> >> http://xenbits.xenproject.org/docs/unstable/misc/xen-command-line.html >> >> -George >> >