<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">I believe, that some set of CSs from Xen 3.5 has to be included as patches into xen-3.4.1-3.src.rpm, in case if it causes by 3.4.1 Hypervisor. Otherwise , F12 release in November won't have suitable Dom0 kernel again. I would guess 2.6.31-rc6 at best. Boris. --- On Sun, 9/6/09, Boris Derzhavets <bderzhavets@yahoo.com> wrote: <blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"> From: Boris Derzhavets <bderzhavets@yahoo.com> Subject: [Fedora-xen] Re: [Xen-devel] Re: Errors when build 2.6.31-rc8 To: "Jeremy Fitzhardinge" <jeremy@goop.org> Cc: "Xen-devel" <xen-devel@lists.xensource.com>, fedora-xen@redhat.com Date: Sunday, September 6, 2009, 12:56 PM <div id="yiv547866665"><table border="0" cellpadding="0" cellspacing="0"><tbody><tr><td style="font-family: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; font-size: inherit; line-height: inherit; font-size-adjust: inherit; font-stretch: inherit; -x-system-font: none;" valign="top">Attempt to load 2.6-31-rc8 under Xen 3.4.1 , installed via xen-3.4.1-3.src.rpm along with libvirt(rawhide) , on top F12 rawhide. yum update gcc,glibc,kernel had been run. Call trace: usb_hc_died + ..... usb_add_hcd +..... usb_hcd_pci_probe + .... do_work_for_cpu + ..... local_pci_probe + ... do_work_for_cpu +..... kthread +..... child_rip+.... restore_args + ..... child_rip + ..... Code : . . . . . . . . RIP [<ffff...c7>] usb_kick_khubd + 0x10/0x25 RSP < ffff ... e0> CR2: 00000...098 ---[ end trace 8219......]---- uhci_hcd 0000:00:1a:0 host controller process error, something bad happened ! uhci_hcd 0000:00:1a:0 host controller halted , very bad uhci_hcd 0000:00:1a:0 HC died, cleaning up 2.6.31-rc6 loads fine in same environment under Xen 3.4.1 on top of F12 rawhide Boris, </td></tr></tbody></table></div> </blockquote></td></tr></table>