Reposting from xen-users (no response) I''m having a problem with: http://pastebin.com/CuGHqwhy It occurs on the reboot, but sometimes, when I try to start manually one of my machines. Sometime, one of the machines does not want to start permanently and I have to reinstall/restore it. This problem comes for me randomly, but maybe there is a trigger. I''ve tried to follow: http://xen.1045712.n5.nabble.com/2-6-32-27-dom0-BUG-unable-to-handle-kernel-paging-request-td3323011.html and raise /proc/sys/vm/min_free_kbytes, but it did not help. System info: Debian, Linux dom0 3.2.0-0.bpo.3-amd64 i libxenstore3.0 4.0.1-5.4 Xenstore communications library for Xen ii xen-hypervisor-4.0-amd64 4.0.1-5.4 The Xen Hypervisor on AMD64 ii xen-linux-system-3.2.0-0.bpo.3-amd64 3.2.23-1~bpo60+2 Xen system with Linux 3.2 on 64-bit PCs (meta-package) ii xen-linux-system-amd64 3.2+45~bpo60+1 Xen system with Linux for 64-bit PCs (meta-package) ii xen-tools 4.2-1 Tools to manage Xen virtual servers ii xen-utils-4.0 4.0.1-5.4 XEN administrative tools ii xen-utils-common 4.0.0-1 XEN administrative tools - common files ii xenstore-utils 4.0.1-5.4 Xenstore utilities for Xen ii xenwatch 0.5.4-2 Virtualization utilities, mostly for Xen Any advices how to solve ? Can it be a hardware problem with RAM ? Regards Slawek
>>> On 23.10.12 at 20:44, Sławek Kosowski<slawek.k_xl@wp.pl> wrote: > Reposting from xen-users (no response) > I'm having a problem with: http://pastebin.com/CuGHqwhy > It occurs on the reboot, but sometimes, when I try to start manually one of > my machines. Sometime, one of the machines does not want to start > permanently and I have to reinstall/restore it. > This problem comes for me randomly, but maybe there is a trigger.Please look for earlier posts of similar problems (and their resolution) before posting here.> I've tried to follow: > http://xen.1045712.n5.nabble.com/2-6-32-27-dom0-BUG-unable-to-handle-kernel-paging-requ > est-td3323011.html > and raise /proc/sys/vm/min_free_kbytes, but it did not help.Just picking some random "unable to handle kernel paging request" report doesn't help; xsave-related issues (caused by a bogus kernel side patch in certain distros) have been discussed quite recently here. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
On Tue, 2012-10-23 at 19:44 +0100, Sławek Kosowski wrote:> Reposting from xen-users (no response) > I'm having a problem with: http://pastebin.com/CuGHqwhy > It occurs on the reboot, but sometimes, when I try to start manually one of > my machines. Sometime, one of the machines does not want to start > permanently and I have to reinstall/restore it.One experiment to try, based on Debian bug #642154 would be to try "noxsave" and/or "noxsaveopt" on your kernel command line. Please try each independently and both together. I thought this sort of thing was ironed out before 3.2. Since you are running a bpo kernel you could also consider running a backport of Xen 4.1 from Wheezy as well.> This problem comes for me randomly, but maybe there is a trigger. > I've tried to follow: > http://xen.1045712.n5.nabble.com/2-6-32-27-dom0-BUG-unable-to-handle-kernel-paging-request-td3323011.html > and raise /proc/sys/vm/min_free_kbytes, but it did not help.That is a completely unrelated problem, "BUG unable to handle kernel paging request" is a very generic error message which is common to loads of different potential issues. [...] Ian. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
Thank you, now I don''t have any errors after reboot, we''ll see how it will be in the future. Regards Slawek> On Tue, 2012-10-23 at 19:44 +0100, Sławek Kosowski wrote: > > Reposting from xen-users (no response) > > I''m having a problem with: http://pastebin.com/CuGHqwhy > > It occurs on the reboot, but sometimes, when I try to start manually one > of > > my machines. Sometime, one of the machines does not want to start > > permanently and I have to reinstall/restore it. > > One experiment to try, based on Debian bug #642154 would be to try > "noxsave" and/or "noxsaveopt" on your kernel command line. Please try > each independently and both together. > > I thought this sort of thing was ironed out before 3.2. Since you are > running a bpo kernel you could also consider running a backport of Xen > 4.1 from Wheezy as well. > > > This problem comes for me randomly, but maybe there is a trigger. > > I''ve tried to follow: > > http://xen.1045712.n5.nabble.com/2-6-32-27-dom0-BUG-unable-to-handle-kernel-paging-request-td3323011.html > > and raise /proc/sys/vm/min_free_kbytes, but it did not help. > > That is a completely unrelated problem, "BUG unable to handle kernel > paging request" is a very generic error message which is common to loads > of different potential issues. > > [...] > > Ian.