Hi there, I hope this is the right list to ask this. Sorry, if not. I am about to create a realtime scheduler for XEN as my diploma thesis. During development I want to run Xen inside of Qemu. When I try to boot the last lines I see are: Freeing unused kernel memory: 196k freed input: ImExPS/2 Generic Explorer Mouse as /class/input/input1 Then nothing more happens. I see qemu maxing out my cpu. I can still type and delete chars. Any idea what''s causing this? Is it stuck in Xen or the Linux kernel? I am running Qemu 0.9.1-1ubuntu1 on Xubuntu 8.04 (Hardy Heron). Xen is version 3.2.1 which I compiled myself. Inside Qemu I run Debian 4.0 (Etch). Thanks for any hints! MartinD: _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Martin Dommermuth, le Mon 05 May 2008 12:25:51 +0200, a écrit :> Hi there, > > I hope this is the right list to ask this. Sorry, if not. > > I am about to create a realtime scheduler for XEN as my diploma > thesis. During development I want to run Xen inside of Qemu. > When I try to boot the last lines I see are: > Freeing unused kernel memory: 196k freed > input: ImExPS/2 Generic Explorer Mouse as /class/input/input1 > > Then nothing more happens. I see qemu maxing out my cpu. I can still > type and delete chars. > Any idea what''s causing this? Is it stuck in Xen or the Linux kernel?These messages come from the Linux kernel, so it''s most probably Linux which somehow got wrong. Which parameters do you give to it? You may want to use the serial console as well (add -serial stdio to the qemu command line). Samuel _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Hi Samuel, that was a quick reply! :) * Samuel Thibault wrote/schrieb:> These messages come from the Linux kernel, so it''s most probably Linux > which somehow got wrong. Which parameters do you give to it? You may > want to use the serial console as well (add -serial stdio to the qemu > command line).I have this in /boot/grub/menu.lst title Xen 3.2.1 / Debian GNU/Linux, kernel 2.6.18.8-xen root (hd0,0) kernel /boot/xen-3.2.1.gz module /boot/vmlinuz-2.6.18.8-xen root=/dev/hda1 ro console=tty0 module /boot/initrd-2.6.18.8-xen.img I''ll try the serial console now. Thanks! MartinD: _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Hi, Am Montag, 5. May 2008 12:31 schrieb Samuel Thibault:> Martin Dommermuth, le Mon 05 May 2008 12:25:51 +0200, a écrit : > > Hi there, > > > > I hope this is the right list to ask this. Sorry, if not. > > > > I am about to create a realtime scheduler for XEN as my diploma > > thesis. During development I want to run Xen inside of Qemu. > > When I try to boot the last lines I see are: > > Freeing unused kernel memory: 196k freed > > input: ImExPS/2 Generic Explorer Mouse as /class/input/input1 > > > > Then nothing more happens. I see qemu maxing out my cpu. I can still > > type and delete chars. > > Any idea what''s causing this? Is it stuck in Xen or the Linux kernel? > > These messages come from the Linux kernel, so it''s most probably Linux > which somehow got wrong. Which parameters do you give to it? You may > want to use the serial console as well (add -serial stdio to the qemu > command line). >I''m using qemu''s built-in GDB stub to trace/debug Xen, and I had this problem too: The Dom0 Linux crashes/hangs just after the message "Freeing unused kernel memory: ...". I was able to get it to work by building both Xen and the Linux guest with PAE disabled, i.e. "make dist XEN_TARGET_X86_PAE=n". This seems a bit strange since qemu supposedly supports PAE, nevertheless, disabling it fixed the problem for me :-). Cheers Rob -- Robert Kaiser http://wwwvs.informatik.fh-wiesbaden.de Labor für Verteilte Systeme kaiser@informatik.fh-wiesbaden.de FH Wiesbaden - University of Applied Sciences tel: (+49)611-9495-294 Kurt-Schumacher-Ring 18, 65197 Wiesbaden, Germany fax: (+49)611-9495-289> Samuel > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel