From mboxrd@z Thu Jan 1 00:00:00 1970 From: Fabio Fantoni Subject: Re: xl console regression on xen-unstable Date: Tue, 15 Oct 2013 16:18:56 +0200 Message-ID: <525D4ED0.4070502@m2r.biz> References: <52541AF5.6080600@m2r.biz> <20131014140248.GG11739@zion.uk.xensource.com> <525BFE00.8090700@m2r.biz> <20131014142900.GJ11739@zion.uk.xensource.com> <525C066C.7050105@m2r.biz> <20131014152602.GM11739@zion.uk.xensource.com> <1381828569.31497.12.camel@kazak.uk.xensource.com> <20131015094548.GA29436@zion.uk.xensource.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20131015094548.GA29436@zion.uk.xensource.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: Wei Liu , Ian Campbell Cc: xen-devel , Ian Jackson , Stefano Stabellini List-Id: xen-devel@lists.xenproject.org Il 15/10/2013 11:45, Wei Liu ha scritto: > On Tue, Oct 15, 2013 at 10:16:09AM +0100, Ian Campbell wrote: >> On Mon, 2013-10-14 at 16:26 +0100, Wei Liu wrote: >>> On Mon, Oct 14, 2013 at 04:57:48PM +0200, Fabio Fantoni wrote: >>>> Il 14/10/2013 16:29, Wei Liu ha scritto: >>>>> On Mon, Oct 14, 2013 at 04:21:52PM +0200, Fabio Fantoni wrote: >>>>>> Il 14/10/2013 16:02, Wei Liu ha scritto: >>>>>>> On Tue, Oct 08, 2013 at 04:47:17PM +0200, Fabio Fantoni wrote: >>>>>>>> I'm unable to start xl console on latest xen-unstable (build with >>>>>>>> commit 8e0da8c07f4f80e14314977a11f738bd74a5b62b). >>>>>>>>> xl -vvv console sid >>>>>>>>> xenconsole: Could not read tty from store: No such file or directory >>>>>>> It would be good if you can paste the output here. >>>>>> Thanks for reply. >>>>>> The "xenconsole: ..." line is the only output of "xl -vvv console >>>>>> sid" command, before that it shows nothing for some seconds, then >>>>>> return to command line. >>>>>> >>>>>>>> I also tried "xl create -c", and it shows console from pygrub but >>>>>>>> when the "xl create" reaches the end I got the same error: >>>>>>>>> xenconsole: Could not read tty from store: No such file or directory >>>>>>> Please run xl -vvv create -c, paste output here. >>>>>> See on attachment. >>>>>> >>>>> Could you also attach the output of "xenstore-ls" when your DomU is up >>>>> and running. >>>> See attachment. >>>> >>>> Thanks for any reply. >>>> >>> That's weird. Xenstore-ls log's tty= field is empty while there's no >>> complain about writing console node in xl -vvv create log. >> xenconsoled writes that node IIRC. >> > Right, then there should be some info in xenconsoled's log. I wasn't > paying attention to that part because there doesn't seem to be > significant change. > >> It's possible that this is a kernel side bug? In that the console is not >> created because of something going on on the guest side. >> > Fabio, can you check the log of xenconsoled? Is it running normally? > > It's a bit hard for me to imagine a guest kernel side bug causing > xenconsoled to misbehave, but that's also possible. If xenconsoled is OK > please follow Ian's suggestion to provide more info. > > Wei. I not found xenconsoled log, it seems not running: "ps ax | grep xenconsoled" returns nothing and the /var/run/xenconsoled.pid has stored pid of died process. I tried to restart xenconsoled manually and after that xl console returns working. I'll do a completly fresh system on the next days and I will let you know.