Hi, My hypervisor version is 4.1.2 and dom0 is ubuntu oneiric 3.0.30. When I supply sched=sedf or sched=arinc653 as boot parameter I can''t boot into dom0. However, if I supply sched=credit (default) or sched=credit2, specified scheduler gets selected and dom0 boots perfectly fine. Not sure if it is a bug. Thanks, Ashish
On Thu, 2012-06-21 at 16:10 -0500, Tapdiya, Ashish wrote:> Hi, >Hello,> My hypervisor version is 4.1.2 and dom0 is ubuntu oneiric 3.0.30. > > When I supply sched=sedf or sched=arinc653 as boot parameter I can''t boot into dom0. >ARNIC653, I never tried. Anyway, can you tell us something more about that inability to boot? Where does it hands? Do you have a log of some sort? Maybe the output of a serial console (see this: http://wiki.xen.org/wiki/Xen_Serial_Console). Also, what machine are we talking about? E.g., how many and what kind of CPUs? Thanks and Regards, Dario -- <<This happens because I choose it to happen!>> (Raistlin Majere) ----------------------------------------------------------------- Dario Faggioli, Ph.D, http://retis.sssup.it/people/faggioli Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK) _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
Dario, I dont have a log currently, I will get it as soon as possible. I am using a single physical machine, Intel Xeon 2.4 Ghz Quad Core. Thanks, ~Ashish ________________________________________ From: Dario Faggioli [raistlin@linux.it] Sent: Thursday, June 21, 2012 5:02 PM To: Tapdiya, Ashish Cc: xen-devel@lists.xen.org Subject: Re: [Xen-devel] Regarding selecting scheduler at boot time... On Thu, 2012-06-21 at 16:10 -0500, Tapdiya, Ashish wrote:> Hi, >Hello,> My hypervisor version is 4.1.2 and dom0 is ubuntu oneiric 3.0.30. > > When I supply sched=sedf or sched=arinc653 as boot parameter I can''t boot into dom0. >ARNIC653, I never tried. Anyway, can you tell us something more about that inability to boot? Where does it hands? Do you have a log of some sort? Maybe the output of a serial console (see this: http://wiki.xen.org/wiki/Xen_Serial_Console). Also, what machine are we talking about? E.g., how many and what kind of CPUs? Thanks and Regards, Dario -- <<This happens because I choose it to happen!>> (Raistlin Majere) ----------------------------------------------------------------- Dario Faggioli, Ph.D, http://retis.sssup.it/people/faggioli Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)
On Thu, Jun 21, 2012 at 10:10 PM, Tapdiya, Ashish <ashish.tapdiya@vanderbilt.edu> wrote:> Hi, > > My hypervisor version is 4.1.2 and dom0 is ubuntu oneiric 3.0.30. > > When I supply sched=sedf or sched=arinc653 as boot parameter I can''t boot into dom0. However, if I supply sched=credit (default) or sched=credit2, specified scheduler gets selected and dom0 boots perfectly fine. Not sure if it is a bug.arinc653 is a custom scheduler written by a single company for a specific purpose (something to do with a hard real-time scheduling problem they had). None of the regular xen.org developers use it or know anything about it, including exactly what it''s for, what kind of hardware it''s expected to run on, or what kind of parameters are required for it to boot. It may even be the case that the company that wrote it also has a custom OS that runs as a dom0. So unless you know what you need it for, it''s probably best to leave that one alone. :-) sedf should work; a proper bug report (including serial console output and a hardware description) will make fixing that bug a lot quicker. -George
> ARNIC653, I never tried. Anyway, can you tell us something more aboutthat inability to boot? Where does it hands? Do you have a log of some sort? Maybe the output of a serial console I removed the current xen installation from system and downloaded the newest release from http://xen.org/products/downloads.html. With the new release sched=sedf parameter works and it can select sedf scheduler. ~Ashish ________________________________________ From: Tapdiya, Ashish Sent: Thursday, June 21, 2012 5:31 PM To: Dario Faggioli Cc: xen-devel@lists.xen.org Subject: RE: [Xen-devel] Regarding selecting scheduler at boot time... Dario, I dont have a log currently, I will get it as soon as possible. I am using a single physical machine, Intel Xeon 2.4 Ghz Quad Core. Thanks, ~Ashish ________________________________________ From: Dario Faggioli [raistlin@linux.it] Sent: Thursday, June 21, 2012 5:02 PM To: Tapdiya, Ashish Cc: xen-devel@lists.xen.org Subject: Re: [Xen-devel] Regarding selecting scheduler at boot time... On Thu, 2012-06-21 at 16:10 -0500, Tapdiya, Ashish wrote:> Hi, >Hello,> My hypervisor version is 4.1.2 and dom0 is ubuntu oneiric 3.0.30. > > When I supply sched=sedf or sched=arinc653 as boot parameter I can''t boot into dom0. >ARNIC653, I never tried. Anyway, can you tell us something more about that inability to boot? Where does it hands? Do you have a log of some sort? Maybe the output of a serial console (see this: http://wiki.xen.org/wiki/Xen_Serial_Console). Also, what machine are we talking about? E.g., how many and what kind of CPUs? Thanks and Regards, Dario -- <<This happens because I choose it to happen!>> (Raistlin Majere) ----------------------------------------------------------------- Dario Faggioli, Ph.D, http://retis.sssup.it/people/faggioli Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)