The specified kernel panics early during boot with xen-3.2.0 (also xen-3.1.3). The only output I was able to get is this: [<ffffffff8021a48c>] bust_spinlocks+0x1c/0x50 [<ffffffff80233728>] panic+0x88/0x170 [<ffffffff8023452e>] printk+0x4e/0x60 [<ffffffff80236c81>] do_exit+0x71/0x8d0 [<ffffffff8035daf5>] do_unblank_screen+0x25/0x130 [<ffffffff8020b6b0>] kernel_math_error+0x0/0xb0 [<ffffffff8020c810>] do_general_protection+0x130/0x150 [<ffffffff805f3680>] hardware_enable+0x0/0x90 [<ffffffff804978d7>] error_exit+0x0/0x79 [<ffffffff805f3680>] hardware_enable+0x0/0x90 [<ffffffff805f3706>] hardware_enable+0x86/0x90 [<ffffffff80213f83>] smp_call_function_interrupt+0x53/0x90 [<ffffffff80257ffe>] handle_IRQ_event+0x4e/0xa0 [<ffffffff80259c3c>] handle_level_irq+0xbc/0x130 [<ffffffff8020cf13>] do_IRQ+0x73/0xf0 [<ffffffff8038a17f>] evtchn_do_upcall+0xdf/0x150 [<ffffffff8020a8ce>] do_hypervisor_callback+0x1e/0x30 <EOI> [<ffffffff802063aa>] hypercall_page+0x3aa/0x1000 [<ffffffff802063aa>] hypercall_page+0x3aa/0x1000 [<ffffffff80246906>] rcu_pending+0x26/0x60 [<ffffffff8020e4c1>] raw_safe_halt+0xa1/0xc0 [<ffffffff80208e19>] xen_idle+0x49/0x90 [<ffffffff80208c23>] cpu_idle+0x63/0x90 I have ruled out faulty SATA/PATA and USB drivers, not compiling them into the kernel does not help. However xen-sources-2.6.18-r8 boots fine with the exact same configuration and only stops much later due to missing SATA/PATA drivers. Two other persons have reported a similar problem in the Gentoo forums: http://forums.gentoo.org/viewtopic-t-661064.html I will attach my .config and the output of lspci for reference. Please advise if and how I can provide any more information. Reproducible: Always /proc/cpuinfo: model name : Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz The mainboard is an Intel DQ35MP with Q35 chipset.
Created attachment 143543 [details] kernel config This is the configuration I used for xen-sources-2.6.20-r6. It's an almost exact copy of my non-xen config.
Created attachment 143545 [details] lspci output Output of lspci -v
Xen 4.1 in tree. Please test with it and reopen if it doesnt work