Ubuntu 10.04 Maverick with linux-image-2.6.35-32-generic crash (8 -> 7 vCPUs) [ 150.864022] Cannot set affinity for irq 0 [ 150.864040] Broke affinity for irq 42 [ 150.864042] Broke affinity for irq 43 [ 150.864044] Broke affinity for irq 44 [ 150.864046] Broke affinity for irq 45 [ 150.864048] Broke affinity for irq 46 [ 150.864050] Broke affinity for irq 47 [ 150.865076] ------------[ cut here ]------------ [ 150.865102] kernel BUG at /build/buildd/linux-2.6.35/arch/x86/xen/spinlock.c:344! [ 150.865110] invalid opcode: 0000 [#1] SMP [ 150.865118] last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map [ 150.865126] CPU 1 [ 150.865129] Modules linked in: lp parport xen_blkfront xen_netfront [ 150.865143] [ 150.865148] Pid: 6, comm: migration/1 Not tainted 2.6.35-32-generic #67-Ubuntu / [ 150.865157] RIP: e030:[] [] dummy_handler+0x4/0x10 [ 150.865173] RSP: e02b:ffff880003e89ea8 EFLAGS: 00010046 [ 150.865179] RAX: ffffffffff57b000 RBX: ffff88003fc0c2a0 RCX: 0000000000000000 [ 150.865188] RDX: 0000000000400200 RSI: 0000000000000000 RDI: 0000000000000007 [ 150.865196] RBP: ffff880003e89ea8 R08: 0000000000000200 R09: 0000000000000000 [ 150.865204] R10: ffff880003e91028 R11: 0000000000012ef0 R12: 0000000000000000 [ 150.865212] R13: 0000000000000000 R14: 0000000000000007 R15: 0000000000000100 [ 150.865225] FS: 00007f4000384700(0000) GS:ffff880003e86000(0000) knlGS:0000000000000000 [ 150.865235] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b [ 150.865242] CR2: 00007f3fff9b5cc1 CR3: 0000000001a2a000 CR4: 0000000000002660 [ 150.865250] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 150.865259] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 150.865267] Process migration/1 (pid: 6, threadinfo ffff88003ea5a000, task ffff88003ea52de0) [ 150.865276] Stack: [ 150.865280] ffff880003e89ef8 ffffffff810cb300 0000000000000200 0000000000000000 [ 150.865293] <0> ffffffff81a23840 ffffffff81a23940 0000000000000007 0000000000000200 [ 150.865307] <0> 0000000000000001 0000000000000100 ffff880003e89f18 ffffffff810cda42 [ 150.865323] Call Trace: [ 150.865328] [ 150.865337] [] handle_IRQ_event+0x50/0x160 [ 150.865347] [] handle_percpu_irq+0x42/0x80 [ 150.865358] [] xen_evtchn_do_upcall+0x1d6/0x200 [ 150.865368] [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.865378] [] xen_do_hypervisor_callback+0x1e/0x30 [ 150.865385] [ 150.865392] [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.865403] [] ? hypercall_page+0x22a/0x1010 [ 150.865409] [] ? hypercall_page+0x22a/0x1010 [ 150.865416] [] ? xen_force_evtchn_callback+0xd/0x10 [ 150.865421] [] ? check_events+0x12/0x20 [ 150.865427] [] ? xen_irq_enable_direct_end+0x0/0x7 [ 150.865433] [] ? stop_machine_cpu_stop+0xaf/0xe0 [ 150.865438] [] ? stop_machine_cpu_stop+0x0/0xe0 [ 150.865444] [] ? cpu_stopper_thread+0xf6/0x1d0 [ 150.865451] [] ? schedule+0x3e1/0x850 [ 150.865457] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.865463] [] ? cpu_stopper_thread+0x0/0x1d0 [ 150.865469] [] ? kthread+0x96/0xa0 [ 150.865474] [] ? kernel_thread_helper+0x4/0x10 [ 150.865481] [] ? int_ret_from_sys_call+0x7/0x1b [ 150.865487] [] ? retint_restore_args+0x5/0x6 [ 150.865493] [] ? kernel_thread_helper+0x0/0x10 [ 150.865497] Code: 89 e5 c9 0f 95 c0 c3 55 b8 01 00 00 00 86 07 84 c0 48 89 e5 0f 94 c0 c9 0f b6 c0 c3 eb 09 90 90 90 90 90 90 90 90 90 55 48 89 e5 <0f> 0b eb fe eb 06 90 90 90 90 90 90 55 ba ff ff ff ff 48 89 e5 [ 150.865567] RIP [] dummy_handler+0x4/0x10 [ 150.865573] RSP [ 150.865580] ---[ end trace 16903f0f669bcfd1 ]--- [ 150.865584] Kernel panic - not syncing: Fatal exception in interrupt [ 150.865587] ------------[ cut here ]------------ [ 150.865590] kernel BUG at /build/buildd/linux-2.6.35/arch/x86/xen/spinlock.c:344! [ 150.865593] invalid opcode: 0000 [#2] SMP [ 150.865596] last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map [ 150.865599] CPU 0 [ 150.865600] Modules linked in: lp parport xen_blkfront xen_netfront [ 150.865605] [ 150.865608] Pid: 4, comm: migration/0 Tainted: G D 2.6.35-32-generic #67-Ubuntu / [ 150.865611] RIP: e030:[] [] dummy_handler+0x4/0x10 [ 150.865618] RSP: e02b:ffff880003e6bea8 EFLAGS: 00010046 [ 150.865621] RAX: ffffffffff57b000 RBX: ffff88003fc0c060 RCX: 0000000000000000 [ 150.865623] RDX: 0000000000400200 RSI: 0000000000000000 RDI: 0000000000000001 [ 150.865626] RBP: ffff880003e6bea8 R08: 0000000000000000 R09: 0000000000000000 [ 150.865629] R10: ffff880003e73028 R11: 0000000000012ef0 R12: 0000000000000000 [ 150.865631] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000100 [ 150.865638] FS: 00007ff0fcd32700(0000) GS:ffff880003e68000(0000) knlGS:0000000000000000 [ 150.865641] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b [ 150.865643] CR2: 000000000097f808 CR3: 00000000035fc000 CR4: 0000000000002660 [ 150.865646] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 150.865650] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 150.865653] Process migration/0 (pid: 4, threadinfo ffff88003ea4e000, task ffff88003ea50000) [ 150.865655] Stack: [ 150.865657] ffff880003e6bef8 ffffffff810cb300 ffffffff81ad1760 0000000000000000 [ 150.865661] <0> 0000000000000100 ffffffff81a23340 0000000000000001 0000000000000000 [ 150.865665] <0> 0000000000000001 0000000000000100 ffff880003e6bf18 ffffffff810cda42 [ 150.865671] Call Trace: [ 150.865672] [ 150.865677] [] handle_IRQ_event+0x50/0x160 [ 150.865681] [] handle_percpu_irq+0x42/0x80 [ 150.865686] [] xen_evtchn_do_upcall+0x1d6/0x200 [ 150.865690] [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.865694] [] xen_do_hypervisor_callback+0x1e/0x30 [ 150.865696] [ 150.865700] [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.865704] [] ? hypercall_page+0x22a/0x1010 [ 150.865708] [] ? hypercall_page+0x22a/0x1010 [ 150.865712] [] ? xen_force_evtchn_callback+0xd/0x10 [ 150.865716] [] ? check_events+0x12/0x20 [ 150.865720] [] ? xen_irq_enable_direct_end+0x0/0x7 [ 150.865724] [] ? stop_machine_cpu_stop+0xaf/0xe0 [ 150.865728] [] ? stop_machine_cpu_stop+0x0/0xe0 [ 150.865731] [] ? cpu_stopper_thread+0xf6/0x1d0 [ 150.865736] [] ? schedule+0x3e1/0x850 [ 150.865740] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.865744] [] ? cpu_stopper_thread+0x0/0x1d0 [ 150.865748] [] ? kthread+0x96/0xa0 [ 150.865752] [] ? kernel_thread_helper+0x4/0x10 [ 150.865756] [] ? int_ret_from_sys_call+0x7/0x1b [ 150.865760] [] ? retint_restore_args+0x5/0x6 [ 150.865764] [] ? kernel_thread_helper+0x0/0x10 [ 150.865766] Code: 89 e5 c9 0f 95 c0 c3 55 b8 01 00 00 00 86 07 84 c0 48 89 e5 0f 94 c0 c9 0f b6 c0 c3 eb 09 90 90 90 90 90 90 90 90 90 55 48 89 e5 <0f> 0b eb fe eb 06 90 90 90 90 90 90 55 ba ff ff ff ff 48 89 e5 [ 150.865802] RIP [] dummy_handler+0x4/0x10 [ 150.865807] RSP [ 150.865812] ---[ end trace 16903f0f669bcfd2 ]--- [ 150.865815] Kernel panic - not syncing: Fatal exception in interrupt [ 150.865818] ------------[ cut here ]------------ [ 150.865821] Pid: 4, comm: migration/0 Tainted: G D 2.6.35-32-generic #67-Ubuntu [ 150.865824] kernel BUG at /build/buildd/linux-2.6.35/arch/x86/xen/spinlock.c:344! [ 150.865826] Call Trace: [ 150.865827] invalid opcode: 0000 [#3] SMP [ 150.865832] [] panic+0x90/0x113 [ 150.865834] last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map [ 150.865838] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.865840] CPU 2 [ 150.865841] Modules linked in: [] oops_end+0xea/0xf0 [ 150.865845] lp parport [] die+0x5b/0x90 [ 150.865849] xen_blkfront xen_netfront [] do_trap+0xc4/0x170 [ 150.865853] [ 150.865855] [ 150.865857] [] do_invalid_op+0x95/0xb0 [ 150.865860] Pid: 9, comm: migration/2 Tainted: G D 2.6.35-32-generic #67-Ubuntu / [ 150.865862] RIP: e030:[] [] ? dummy_handler+0x4/0x10 [ 150.865868] [] dummy_handler+0x4/0x10 [ 150.865870] RSP: e02b:ffff880003ea7ea8 EFLAGS: 00010046 [ 150.865873] [] ? check_events+0x12/0x20 [ 150.865875] RAX: ffffffffff57b000 RBX: ffff88003fc0c4e0 RCX: 0000000000000000 [ 150.865878] RDX: 0000000000400200 RSI: 0000000000000000 RDI: 000000000000000d [ 150.865881] [] ? xen_restore_fl_direct_end+0x0/0x1 [ 150.865883] RBP: ffff880003ea7ea8 R08: 0000000000000400 R09: 0000000000000000 [ 150.865885] R10: ffff880003eaf028 R11: 0000000000012ef0 R12: 0000000000000000 [ 150.865889] [] ? check_for_new_grace_period+0xb9/0xd0 [ 150.865892] R13: 0000000000000000 R14: 000000000000000d R15: 0000000000000100 [ 150.865895] [] invalid_op+0x1b/0x20 [ 150.865897] FS: 00007f4000384700(0000) GS:ffff880003ea4000(0000) knlGS:0000000000000000 [ 150.865900] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b [ 150.865903] [] ? dummy_handler+0x4/0x10 [ 150.865905] CR2: 00007f3fff9b5cc1 CR3: 0000000001a2a000 CR4: 0000000000002660 [ 150.865907] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 150.865910] [] ? irq_to_desc+0x17/0x20 [ 150.865913] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 150.865915] Process migration/2 (pid: 9, threadinfo ffff88003ea84000, task ffff88003ea90000) [ 150.865918] [] handle_IRQ_event+0x50/0x160 [ 150.865920] Stack: [ 150.865921] ffff880003ea7ef8 [] handle_percpu_irq+0x42/0x80 [ 150.865925] ffffffff810cb300 0000000000000400 [] xen_evtchn_do_upcall+0x1d6/0x200 [ 150.865929] 0000000000000000 [ 150.865931] <0> [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.865934] ffffffff81a23e40 ffffffff81a23f40 [] xen_do_hypervisor_callback+0x1e/0x30 [ 150.865939] 000000000000000d 0000000000000400 [ 150.865942] <0> [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.865945] 0000000000000001 0000000000000100 [] ? hypercall_page+0x22a/0x1010 [ 150.865950] ffff880003ea7f18 ffffffff810cda42 [] ? hypercall_page+0x22a/0x1010 [ 150.865955] [ 150.865956] Call Trace: [ 150.865959] [] ? xen_force_evtchn_callback+0xd/0x10 [ 150.865961] [ 150.865964] [] ? check_events+0x12/0x20 [ 150.865967] [] handle_IRQ_event+0x50/0x160 [ 150.865971] [] ? xen_irq_enable_direct_end+0x0/0x7 [ 150.865974] [] handle_percpu_irq+0x42/0x80 [ 150.865977] [] ? stop_machine_cpu_stop+0xaf/0xe0 [ 150.865980] [] xen_evtchn_do_upcall+0x1d6/0x200 [ 150.865984] [] ? stop_machine_cpu_stop+0x0/0xe0 [ 150.865987] [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.865990] [] ? cpu_stopper_thread+0xf6/0x1d0 [ 150.865993] [] xen_do_hypervisor_callback+0x1e/0x30 [ 150.865995] [] ? schedule+0x3e1/0x850 [ 150.865999] [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.866003] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.866006] [] ? hypercall_page+0x22a/0x1010 [ 150.866010] [] ? cpu_stopper_thread+0x0/0x1d0 [ 150.866012] [] ? hypercall_page+0x22a/0x1010 [ 150.866016] [] ? kthread+0x96/0xa0 [ 150.866019] [] ? xen_force_evtchn_callback+0xd/0x10 [ 150.866022] [] ? kernel_thread_helper+0x4/0x10 [ 150.866025] [] ? check_events+0x12/0x20 [ 150.866029] [] ? int_ret_from_sys_call+0x7/0x1b [ 150.866032] [] ? xen_irq_enable_direct_end+0x0/0x7 [ 150.866035] [] ? retint_restore_args+0x5/0x6 [ 150.866038] [] ? stop_machine_cpu_stop+0xaf/0xe0 [ 150.866041] [] ? kernel_thread_helper+0x0/0x10 [ 150.866044] [] ? stop_machine_cpu_stop+0x0/0xe0 [ 150.866047] [] ? cpu_stopper_thread+0xf6/0x1d0 [ 150.866050] [] ? schedule+0x3e1/0x850 [ 150.866054] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.866058] [] ? cpu_stopper_thread+0x0/0x1d0 [ 150.866061] [] ? kthread+0x96/0xa0 [ 150.866064] [] ? kernel_thread_helper+0x4/0x10 [ 150.866067] [] ? int_ret_from_sys_call+0x7/0x1b [ 150.866069] [] ? retint_restore_args+0x5/0x6 [ 150.866072] [] ? kernel_thread_helper+0x0/0x10 [ 150.866073] Code: 89 e5 c9 0f 95 c0 c3 55 b8 01 00 00 00 86 07 84 c0 48 89 e5 0f 94 c0 c9 0f b6 c0 c3 eb 09 90 90 90 90 90 90 90 90 90 55 48 89 e5 <0f> 0b eb fe eb 06 90 90 90 90 90 90 55 ba ff ff ff ff 48 89 e5 [ 150.866097] RIP [] dummy_handler+0x4/0x10 [ 150.866099] RSP [ 150.866104] ---[ end trace 16903f0f669bcfd3 ]--- [ 150.866106] Kernel panic - not syncing: Fatal exception in interrupt [ 150.866108] ------------[ cut here ]------------ [ 150.866111] Pid: 9, comm: migration/2 Tainted: G D 2.6.35-32-generic #67-Ubuntu [ 150.866114] kernel BUG at /build/buildd/linux-2.6.35/arch/x86/xen/spinlock.c:344! [ 150.866116] Call Trace: [ 150.866117] invalid opcode: 0000 [#4] SMP [ 150.866121] [] panic+0x90/0x113 [ 150.866123] last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map [ 150.866127] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.866128] CPU 3 [ 150.866130] Modules linked in: [] oops_end+0xea/0xf0 [ 150.866133] lp parport [] die+0x5b/0x90 [ 150.866137] xen_blkfront xen_netfront [] do_trap+0xc4/0x170 [ 150.866141] [ 150.866143] [ 150.866145] [] do_invalid_op+0x95/0xb0 [ 150.866148] Pid: 12, comm: migration/3 Tainted: G D 2.6.35-32-generic #67-Ubuntu / [ 150.866151] RIP: e030:[] [] ? dummy_handler+0x4/0x10 [ 150.866156] [] dummy_handler+0x4/0x10 [ 150.866158] RSP: e02b:ffff880003ec5ea8 EFLAGS: 00010046 [ 150.866161] [] ? xen_vcpuop_set_next_event+0x41/0x70 [ 150.866164] RAX: ffffffffff57b000 RBX: ffff88003fc0c8a0 RCX: 0000000000000000 [ 150.866166] RDX: 0000000000400200 RSI: 0000000000000000 RDI: 0000000000000013 [ 150.866169] RBP: ffff880003ec5ea8 R08: 0000000000000600 R09: 0000000000000000 [ 150.866172] [] ? _raw_spin_lock_irq+0x15/0x20 [ 150.866174] R10: ffff880003ecd028 R11: 0000000000012ef0 R12: 0000000000000000 [ 150.866176] R13: 0000000000000000 R14: 0000000000000013 R15: 0000000000000100 [ 150.866179] [] invalid_op+0x1b/0x20 [ 150.866182] FS: 00007ff3e47dc700(0000) GS:ffff880003ec2000(0000) knlGS:0000000000000000 [ 150.866185] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b [ 150.866188] [] ? dummy_handler+0x4/0x10 [ 150.866190] CR2: 00007ff3e47e3000 CR3: 0000000001a2a000 CR4: 0000000000002660 [ 150.866193] [] ? irq_to_desc+0x17/0x20 [ 150.866195] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 150.866199] [] handle_IRQ_event+0x50/0x160 [ 150.866201] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 150.866204] Process migration/3 (pid: 12, threadinfo ffff88003ea9e000, task ffff88003ea944d0) [ 150.866207] [] handle_percpu_irq+0x42/0x80 [ 150.866208] Stack: [ 150.866210] ffff880003ec5ef8 [] xen_evtchn_do_upcall+0x1d6/0x200 [ 150.866214] ffffffff810cb300 0000000000000600 [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.866218] 0000000000000000 [ 150.866219] <0> [] xen_do_hypervisor_callback+0x1e/0x30 [ 150.866223] ffff88003fc02800 ffff88003fc02900 0000000000000013 [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.866228] 0000000000000600 [ 150.866230] <0> [] ? hypercall_page+0x22a/0x1010 [ 150.866233] 0000000000000001 0000000000000100 [] ? hypercall_page+0x22a/0x1010 [ 150.866238] ffff880003ec5f18 ffffffff810cda42 [] ? xen_force_evtchn_callback+0xd/0x10 [ 150.866242] [ 150.866243] Call Trace: [ 150.866246] [] ? check_events+0x12/0x20 [ 150.866248] [] ? xen_irq_enable_direct_end+0x0/0x7 [ 150.866253] [] handle_IRQ_event+0x50/0x160 [ 150.866256] [] ? stop_machine_cpu_stop+0xaf/0xe0 [ 150.866260] [] handle_percpu_irq+0x42/0x80 [ 150.866263] [] ? stop_machine_cpu_stop+0x0/0xe0 [ 150.866266] [] xen_evtchn_do_upcall+0x1d6/0x200 [ 150.866269] [] ? cpu_stopper_thread+0xf6/0x1d0 [ 150.866272] [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.866275] [] ? schedule+0x3e1/0x850 [ 150.866278] [] xen_do_hypervisor_callback+0x1e/0x30 [ 150.866280] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.866285] [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.866288] [] ? cpu_stopper_thread+0x0/0x1d0 [ 150.866292] [] ? hypercall_page+0x22a/0x1010 [ 150.866294] [] ? kthread+0x96/0xa0 [ 150.866298] [] ? hypercall_page+0x22a/0x1010 [ 150.866301] [] ? kernel_thread_helper+0x4/0x10 [ 150.866304] [] ? xen_force_evtchn_callback+0xd/0x10 [ 150.866308] [] ? int_ret_from_sys_call+0x7/0x1b [ 150.866310] [] ? check_events+0x12/0x20 [ 150.866314] [] ? retint_restore_args+0x5/0x6 [ 150.866318] [] ? xen_irq_enable_direct_end+0x0/0x7 [ 150.866320] [] ? kernel_thread_helper+0x0/0x10 [ 150.866323] [] ? stop_machine_cpu_stop+0xaf/0xe0 [ 150.866327] [] ? stop_machine_cpu_stop+0x0/0xe0 [ 150.866330] [] ? cpu_stopper_thread+0xf6/0x1d0 [ 150.866333] [] ? schedule+0x3e1/0x850 [ 150.866337] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.866340] [] ? cpu_stopper_thread+0x0/0x1d0 [ 150.866343] [] ? kthread+0x96/0xa0 [ 150.866346] [] ? kernel_thread_helper+0x4/0x10 [ 150.866350] [] ? int_ret_from_sys_call+0x7/0x1b [ 150.866353] [] ? retint_restore_args+0x5/0x6 [ 150.866356] [] ? kernel_thread_helper+0x0/0x10 [ 150.866358] Code: 89 e5 c9 0f 95 c0 c3 55 b8 01 00 00 00 86 07 84 c0 48 89 e5 0f 94 c0 c9 0f b6 c0 c3 eb 09 90 90 90 90 90 90 90 90 90 55 48 89 e5 <0f> 0b eb fe eb 06 90 90 90 90 90 90 55 ba ff ff ff ff 48 89 e5 [ 150.866390] RIP [] dummy_handler+0x4/0x10 [ 150.866393] RSP [ 150.866397] ---[ end trace 16903f0f669bcfd4 ]--- [ 150.866399] Kernel panic - not syncing: Fatal exception in interrupt [ 150.866402] Pid: 12, comm: migration/3 Tainted: G D 2.6.35-32-generic #67-Ubuntu [ 150.866405] ------------[ cut here ]------------ [ 150.866408] Call Trace: [ 150.866410] kernel BUG at /build/buildd/linux-2.6.35/arch/x86/xen/spinlock.c:344! [ 150.866412] [ 150.866414] invalid opcode: 0000 [#5] SMP [] panic+0x90/0x113 [ 150.866419] [ 150.866421] last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map [ 150.866424] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.866426] CPU 4 [ 150.866428] Modules linked in: [] oops_end+0xea/0xf0 [ 150.866432] lp parport [] die+0x5b/0x90 [ 150.866436] xen_blkfront xen_netfront [] do_trap+0xc4/0x170 [ 150.866441] [ 150.866442] [ 150.866445] [] do_invalid_op+0x95/0xb0 [ 150.866448] Pid: 15, comm: migration/4 Tainted: G D 2.6.35-32-generic #67-Ubuntu / [ 150.866451] RIP: e030:[] [] ? dummy_handler+0x4/0x10 [ 150.866458] [] dummy_handler+0x4/0x10 [ 150.866461] RSP: e02b:ffff880003ee3ea8 EFLAGS: 00010046 [ 150.866464] [] ? xen_vcpuop_set_next_event+0x41/0x70 [ 150.866466] RAX: ffffffffff57b000 RBX: ffff88003fc0cd20 RCX: 0000000000000000 [ 150.866470] RDX: 0000000000400200 RSI: 0000000000000000 RDI: 0000000000000019 [ 150.866473] [] ? _raw_spin_lock_irq+0x15/0x20 [ 150.866475] RBP: ffff880003ee3ea8 R08: 0000000000000800 R09: 0000000000000000 [ 150.866479] R10: ffff880003eeb028 R11: 0000000000012ef0 R12: 0000000000000000 [ 150.866482] [] invalid_op+0x1b/0x20 [ 150.866484] R13: 0000000000000000 R14: 0000000000000019 R15: 0000000000000100 [ 150.866488] [] ? dummy_handler+0x4/0x10 [ 150.866491] FS: 00007ff3e47dc700(0000) GS:ffff880003ee0000(0000) knlGS:0000000000000000 [ 150.866494] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b [ 150.866497] [] ? irq_to_desc+0x17/0x20 [ 150.866499] CR2: 00000000014b3bb8 CR3: 0000000001a2a000 CR4: 0000000000002660 [ 150.866503] [] handle_IRQ_event+0x50/0x160 [ 150.866505] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 150.866509] [] handle_percpu_irq+0x42/0x80 [ 150.866511] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 150.866515] Process migration/4 (pid: 15, threadinfo ffff88003eab8000, task ffff88003eab16f0) [ 150.866518] [] xen_evtchn_do_upcall+0x1d6/0x200 [ 150.866520] Stack: [ 150.866522] ffff880003ee3ef8 [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.866526] ffffffff810cb300 0000000000000800 [] xen_do_hypervisor_callback+0x1e/0x30 [ 150.866531] 0000000000000000 [ 150.866533] <0> ffff88003fc02e00 [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.866538] ffff88003fc02f00 0000000000000019 [] ? hypercall_page+0x22a/0x1010 [ 150.866543] 0000000000000800 [ 150.866545] <0> [] ? hypercall_page+0x22a/0x1010 [ 150.866549] 0000000000000001 0000000000000100 [] ? xen_force_evtchn_callback+0xd/0x10 [ 150.866554] ffff880003ee3f18 ffffffff810cda42 [] ? check_events+0x12/0x20 [ 150.866558] [ 150.866560] Call Trace: [ 150.866563] [] ? xen_irq_enable_direct_end+0x0/0x7 [ 150.866565] [] ? stop_machine_cpu_stop+0xaf/0xe0 [ 150.866571] [] handle_IRQ_event+0x50/0x160 [ 150.866574] [] ? stop_machine_cpu_stop+0x0/0xe0 [ 150.866578] [] handle_percpu_irq+0x42/0x80 [ 150.866581] [] ? cpu_stopper_thread+0xf6/0x1d0 [ 150.866585] [] xen_evtchn_do_upcall+0x1d6/0x200 [ 150.866588] [] ? schedule+0x3e1/0x850 [ 150.866592] [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.866596] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.866600] [] xen_do_hypervisor_callback+0x1e/0x30 [ 150.866603] [] ? cpu_stopper_thread+0x0/0x1d0 [ 150.866605] [ 150.866608] [] ? kthread+0x96/0xa0 [ 150.866611] [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.866614] [] ? kernel_thread_helper+0x4/0x10 [ 150.866619] [] ? hypercall_page+0x22a/0x1010 [ 150.866622] [] ? int_ret_from_sys_call+0x7/0x1b [ 150.866626] [] ? hypercall_page+0x22a/0x1010 [ 150.866629] [] ? retint_restore_args+0x5/0x6 [ 150.866633] [] ? xen_force_evtchn_callback+0xd/0x10 [ 150.866636] [] ? kernel_thread_helper+0x0/0x10 [ 150.866640] [] ? check_events+0x12/0x20 [ 150.866644] [] ? xen_irq_enable_direct_end+0x0/0x7 [ 150.866648] [] ? stop_machine_cpu_stop+0xaf/0xe0 [ 150.866652] [] ? stop_machine_cpu_stop+0x0/0xe0 [ 150.866656] [] ? cpu_stopper_thread+0xf6/0x1d0 [ 150.866660] [] ? schedule+0x3e1/0x850 [ 150.866664] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.866668] [] ? cpu_stopper_thread+0x0/0x1d0 [ 150.866671] [] ? kthread+0x96/0xa0 [ 150.866675] [] ? kernel_thread_helper+0x4/0x10 [ 150.866679] [] ? int_ret_from_sys_call+0x7/0x1b [ 150.866683] [] ? retint_restore_args+0x5/0x6 [ 150.866687] [] ? kernel_thread_helper+0x0/0x10 [ 150.866689] Code: 89 e5 c9 0f 95 c0 c3 55 b8 01 00 00 00 86 07 84 c0 48 89 e5 0f 94 c0 c9 0f b6 c0 c3 eb 09 90 90 90 90 90 90 90 90 90 55 48 89 e5 <0f> 0b eb fe eb 06 90 90 90 90 90 90 55 ba ff ff ff ff 48 89 e5 [ 150.866724] RIP [] dummy_handler+0x4/0x10 [ 150.866728] RSP [ 150.866733] ---[ end trace 16903f0f669bcfd5 ]--- [ 150.866736] Kernel panic - not syncing: Fatal exception in interrupt [ 150.866739] Pid: 15, comm: migration/4 Tainted: G D 2.6.35-32-generic #67-Ubuntu [ 150.866742] ------------[ cut here ]------------ [ 150.866745] Call Trace: [ 150.866747] kernel BUG at /build/buildd/linux-2.6.35/arch/x86/xen/spinlock.c:344! [ 150.866750] [ 150.866752] invalid opcode: 0000 [#6] SMP [] panic+0x90/0x113 [ 150.866756] [ 150.866758] last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map [ 150.866762] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.866764] CPU 5 [ 150.866766] Modules linked in: [] oops_end+0xea/0xf0 [ 150.866770] lp parport [] die+0x5b/0x90 [ 150.866775] xen_blkfront xen_netfront [] do_trap+0xc4/0x170 [ 150.866780] [ 150.866782] [ 150.866784] [] do_invalid_op+0x95/0xb0 [ 150.866787] Pid: 18, comm: migration/5 Tainted: G D 2.6.35-32-generic #67-Ubuntu / [ 150.866791] RIP: e030:[] [] ? dummy_handler+0x4/0x10 [ 150.866798] [] dummy_handler+0x4/0x10 [ 150.866801] RSP: e02b:ffff880003f01ea8 EFLAGS: 00010046 [ 150.866804] [] ? xen_vcpuop_set_next_event+0x41/0x70 [ 150.866807] RAX: ffffffffff57b000 RBX: ffff88003ea7b1e0 RCX: 0000000000000000 [ 150.866810] RDX: 0000000000400200 RSI: 0000000000000000 RDI: 000000000000001f [ 150.866814] [] ? _raw_spin_lock_irq+0x15/0x20 [ 150.866816] RBP: ffff880003f01ea8 R08: 0000000000000a00 R09: 0000000000000000 [ 150.866819] R10: ffff880003f09028 R11: 0000000000012ef0 R12: 0000000000000000 [ 150.866823] [] invalid_op+0x1b/0x20 [ 150.866825] R13: 0000000000000000 R14: 000000000000001f R15: 0000000000000100 [ 150.866829] [] ? dummy_handler+0x4/0x10 [ 150.866832] FS: 00007ff3e47dc700(0000) GS:ffff880003efe000(0000) knlGS:0000000000000000 [ 150.866835] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b [ 150.866839] [] ? irq_to_desc+0x17/0x20 [ 150.866841] CR2: 00007ff3e32ec4d6 CR3: 0000000001a2a000 CR4: 0000000000002660 [ 150.866845] [] handle_IRQ_event+0x50/0x160 [ 150.866848] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 150.866851] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 150.866855] [] handle_percpu_irq+0x42/0x80 [ 150.866858] Process migration/5 (pid: 18, threadinfo ffff88003eac2000, task ffff88003eab5bc0) [ 150.866860] Stack: [ 150.866863] [] xen_evtchn_do_upcall+0x1d6/0x200 [ 150.866865] ffff880003f01ef8 ffffffff810cb300 [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.866871] 0000000000000a00 0000000000000000 [] xen_do_hypervisor_callback+0x1e/0x30 [ 150.866876] [ 150.866877] <0> ffff88003fc03400 ffff88003fc03500 [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.866883] 000000000000001f 0000000000000a00 [] ? hypercall_page+0x22a/0x1010 [ 150.866889] [ 150.866890] <0> 0000000000000001 [] ? hypercall_page+0x22a/0x1010 [ 150.866895] 0000000000000100 ffff880003f01f18 [] ? xen_force_evtchn_callback+0xd/0x10 [ 150.866901] ffffffff810cda42 [ 150.866904] [] ? check_events+0x12/0x20 [ 150.866906] Call Trace: [ 150.866908] [] ? xen_irq_enable_direct_end+0x0/0x7 [ 150.866915] [] handle_IRQ_event+0x50/0x160 [ 150.866919] [] ? stop_machine_cpu_stop+0xaf/0xe0 [ 150.866923] [] handle_percpu_irq+0x42/0x80 [ 150.866926] [] ? stop_machine_cpu_stop+0x0/0xe0 [ 150.866931] [] xen_evtchn_do_upcall+0x1d6/0x200 [ 150.866934] [] ? cpu_stopper_thread+0xf6/0x1d0 [ 150.866938] [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.866942] [] ? schedule+0x3e1/0x850 [ 150.866945] [] xen_do_hypervisor_callback+0x1e/0x30 [ 150.866948] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.866955] [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.866958] [] ? cpu_stopper_thread+0x0/0x1d0 [ 150.866963] [] ? hypercall_page+0x22a/0x1010 [ 150.866966] [] ? kthread+0x96/0xa0 [ 150.866970] [] ? hypercall_page+0x22a/0x1010 [ 150.866973] [] ? kernel_thread_helper+0x4/0x10 [ 150.866978] [] ? xen_force_evtchn_callback+0xd/0x10 [ 150.866982] [] ? int_ret_from_sys_call+0x7/0x1b [ 150.866986] [] ? check_events+0x12/0x20 [ 150.866989] [] ? retint_restore_args+0x5/0x6 [ 150.866994] [] ? xen_irq_enable_direct_end+0x0/0x7 [ 150.866997] [] ? kernel_thread_helper+0x0/0x10 [ 150.867001] [] ? stop_machine_cpu_stop+0xaf/0xe0 [ 150.867004] [] ? stop_machine_cpu_stop+0x0/0xe0 [ 150.867008] [] ? cpu_stopper_thread+0xf6/0x1d0 [ 150.867012] [] ? schedule+0x3e1/0x850 [ 150.867017] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.867020] [] ? cpu_stopper_thread+0x0/0x1d0 [ 150.867024] [] ? kthread+0x96/0xa0 [ 150.867028] [] ? kernel_thread_helper+0x4/0x10 [ 150.867032] [] ? int_ret_from_sys_call+0x7/0x1b [ 150.867036] [] ? retint_restore_args+0x5/0x6 [ 150.867040] [] ? kernel_thread_helper+0x0/0x10 [ 150.867042] Code: 89 e5 c9 0f 95 c0 c3 55 b8 01 00 00 00 86 07 84 c0 48 89 e5 0f 94 c0 c9 0f b6 c0 c3 eb 09 90 90 90 90 90 90 90 90 90 55 48 89 e5 <0f> 0b eb fe eb 06 90 90 90 90 90 90 55 ba ff ff ff ff 48 89 e5 [ 150.867081] RIP [] dummy_handler+0x4/0x10 [ 150.867086] RSP [ 150.867091] ---[ end trace 16903f0f669bcfd6 ]--- [ 150.867093] Kernel panic - not syncing: Fatal exception in interrupt [ 150.867097] Pid: 18, comm: migration/5 Tainted: G D 2.6.35-32-generic #67-Ubuntu [ 150.867100] ------------[ cut here ]------------ [ 150.867102] Call Trace: [ 150.867104] kernel BUG at /build/buildd/linux-2.6.35/arch/x86/xen/spinlock.c:344! [ 150.867106] [ 150.867108] invalid opcode: 0000 [#7] SMP [] panic+0x90/0x113 [ 150.867113] [ 150.867114] last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map [ 150.867118] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.867120] CPU 6 [ 150.867122] Modules linked in: [] oops_end+0xea/0xf0 [ 150.867126] lp parport [] die+0x5b/0x90 [ 150.867130] xen_blkfront xen_netfront [] do_trap+0xc4/0x170 [ 150.867135] [ 150.867136] [ 150.867139] [] do_invalid_op+0x95/0xb0 [ 150.867142] Pid: 21, comm: migration/6 Tainted: G D 2.6.35-32-generic #67-Ubuntu / [ 150.867145] RIP: e030:[] [] ? dummy_handler+0x4/0x10 [ 150.867151] [] dummy_handler+0x4/0x10 [ 150.867154] RSP: e02b:ffff880003f1fea8 EFLAGS: 00010046 [ 150.867157] [] ? xen_vcpuop_set_next_event+0x41/0x70 [ 150.867159] RAX: ffffffffff57b000 RBX: ffff88003ea7b660 RCX: 0000000000000000 [ 150.867162] RDX: 0000000000400200 RSI: 0000000000000000 RDI: 0000000000000025 [ 150.867165] [] ? _raw_spin_lock_irq+0x15/0x20 [ 150.867168] RBP: ffff880003f1fea8 R08: 0000000000000c00 R09: 0000000000000000 [ 150.867170] R10: ffff880003f27028 R11: 0000000000012ef0 R12: 0000000000000000 [ 150.867173] [] invalid_op+0x1b/0x20 [ 150.867176] R13: 0000000000000000 R14: 0000000000000025 R15: 0000000000000100 [ 150.867179] [] ? dummy_handler+0x4/0x10 [ 150.867183] FS: 00007fba0e73e720(0000) GS:ffff880003f1c000(0000) knlGS:0000000000000000 [ 150.867186] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b [ 150.867189] [] ? irq_to_desc+0x17/0x20 [ 150.867191] CR2: 00007fba0e744000 CR3: 000000003cccc000 CR4: 0000000000002660 [ 150.867194] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 150.867197] [] handle_IRQ_event+0x50/0x160 [ 150.867199] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 150.867202] Process migration/6 (pid: 21, threadinfo ffff88003eadc000, task ffff88003ead2de0) [ 150.867205] [] handle_percpu_irq+0x42/0x80 [ 150.867207] Stack: [ 150.867209] ffff880003f1fef8 [] xen_evtchn_do_upcall+0x1d6/0x200 [ 150.867213] ffffffff810cb300 0000000000000c00 [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.867218] 0000000000000000 [ 150.867220] <0> [] xen_do_hypervisor_callback+0x1e/0x30 [ 150.867223] ffff88003fc03a00 ffff88003fc03b00 0000000000000025 [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.867230] 0000000000000c00 [ 150.867231] <0> [] ? hypercall_page+0x22a/0x1010 [ 150.867235] 0000000000000001 0000000000000100 [] ? hypercall_page+0x22a/0x1010 [ 150.867241] ffff880003f1ff18 ffffffff810cda42 [] ? xen_force_evtchn_callback+0xd/0x10 [ 150.867246] [ 150.867247] Call Trace: [ 150.867250] [] ? check_events+0x12/0x20 [ 150.867252] [] ? xen_irq_enable_direct_end+0x0/0x7 [ 150.867259] [] handle_IRQ_event+0x50/0x160 [ 150.867262] [] ? stop_machine_cpu_stop+0xaf/0xe0 [ 150.867266] [] handle_percpu_irq+0x42/0x80 [ 150.867269] [] ? stop_machine_cpu_stop+0x0/0xe0 [ 150.867273] [] xen_evtchn_do_upcall+0x1d6/0x200 [ 150.867276] [] ? cpu_stopper_thread+0xf6/0x1d0 [ 150.867280] [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.867283] [] ? schedule+0x3e1/0x850 [ 150.867286] [] xen_do_hypervisor_callback+0x1e/0x30 [ 150.867288] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.867294] [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.867297] [] ? cpu_stopper_thread+0x0/0x1d0 [ 150.867301] [] ? hypercall_page+0x22a/0x1010 [ 150.867304] [] ? kthread+0x96/0xa0 [ 150.867308] [] ? hypercall_page+0x22a/0x1010 [ 150.867311] [] ? kernel_thread_helper+0x4/0x10 [ 150.867315] [] ? xen_force_evtchn_callback+0xd/0x10 [ 150.867319] [] ? int_ret_from_sys_call+0x7/0x1b [ 150.867322] [] ? check_events+0x12/0x20 [ 150.867326] [] ? retint_restore_args+0x5/0x6 [ 150.867329] [] ? xen_irq_enable_direct_end+0x0/0x7 [ 150.867333] [] ? kernel_thread_helper+0x0/0x10 [ 150.867336] [] ? stop_machine_cpu_stop+0xaf/0xe0 [ 150.867339] [] ? stop_machine_cpu_stop+0x0/0xe0 [ 150.867343] [] ? cpu_stopper_thread+0xf6/0x1d0 [ 150.867346] [] ? schedule+0x3e1/0x850 [ 150.867350] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.867353] [] ? cpu_stopper_thread+0x0/0x1d0 [ 150.867356] [] ? kthread+0x96/0xa0 [ 150.867359] [] ? kernel_thread_helper+0x4/0x10 [ 150.867363] [] ? int_ret_from_sys_call+0x7/0x1b [ 150.867366] [] ? retint_restore_args+0x5/0x6 [ 150.867369] [] ? kernel_thread_helper+0x0/0x10 [ 150.867371] Code: 89 e5 c9 0f 95 c0 c3 55 b8 01 00 00 00 86 07 84 c0 48 89 e5 0f 94 c0 c9 0f b6 c0 c3 eb 09 90 90 90 90 90 90 90 90 90 55 48 89 e5 <0f> 0b eb fe eb 06 90 90 90 90 90 90 55 ba ff ff ff ff 48 89 e5 [ 150.867403] RIP [] dummy_handler+0x4/0x10 [ 150.867406] RSP [ 150.867409] ---[ end trace 16903f0f669bcfd7 ]--- [ 150.867411] Kernel panic - not syncing: Fatal exception in interrupt [ 150.867414] Pid: 21, comm: migration/6 Tainted: G D 2.6.35-32-generic #67-Ubuntu [ 150.867416] Call Trace: [ 150.867417] [] panic+0x90/0x113 [ 150.867423] [] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [ 150.867426] [] oops_end+0xea/0xf0 [ 150.867429] [] die+0x5b/0x90 [ 150.867432] [] do_trap+0xc4/0x170 [ 150.867435] [] do_invalid_op+0x95/0xb0 [ 150.867439] [] ? dummy_handler+0x4/0x10 [ 150.867442] [] ? xen_vcpuop_set_next_event+0x41/0x70 [ 150.867445] [] ? _raw_spin_lock_irq+0x15/0x20 [ 150.867448] [] invalid_op+0x1b/0x20 [ 150.867452] [] ? dummy_handler+0x4/0x10 [ 150.867455] [] ? irq_to_desc+0x17/0x20 [ 150.867458] [] handle_IRQ_event+0x50/0x160 [ 150.867461] [] handle_percpu_irq+0x42/0x80 [ 150.867464] [] xen_evtchn_do_upcall+0x1d6/0x200 [ 150.867468] [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.867471] [] xen_do_hypervisor_callback+0x1e/0x30 [ 150.867473] [] ? cpu_stopper_thread+0x110/0x1d0 [ 150.867478] [] ? hypercall_page+0x22a/0x1010 [ 150.867481] [] ? hypercall_page+0x22a/0x1010 [ 150.867485] [] ? xen_force_evtchn_callback+0xd/0x10 [ 150.867488] [