root@xenturio1:~# xl console testvm-3.1
PM: early restore of devices complete after 0.068 msecs
rsyslogd[847] trap invalid opcode ip:7f1059a25396 sp:7f1057ad4d58 error:0 in libc-2.11.2.so[7f105991e000+158000]
invalid opcode: 0000 [#1] SMP
CPU 1
Modules linked in:

Pid: 846, comm: rsyslogd Not tainted 3.1.0-rc2-xenU+ #3
RIP: e030:[<ffffffff810b1b21>]  [<ffffffff810b1b21>] tlb_gather_mmu+0x31/0x60
RSP: e02b:ffff88001e231bd0  EFLAGS: 00010246
RAX: ffffffff8185b520 RBX: ffff88001e3310c8 RCX: ffff88001e231bd8
RDX: 0000000000000000 RSI: ffff88001e209c20 RDI: 0000000000000003
RBP: ffff88001e209c20 R08: 0000000000000030 R09: 0000000000000000
R10: 00000000deadbeef R11: 0000000000000001 R12: ffff88001fb0cb90
R13: ffff88001e209c80 R14: ffff88001fb0cb90 R15: ffff88001fb0cb90
FS:  00007f10582d6700(0000) GS:ffff88001fee0000(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 0000000001805000 CR4: 0000000000002660
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process rsyslogd (pid: 846, threadinfo ffff88001e230000, task ffff88001fb0cb90)
Stack:
 ffffffff810b8b4c ffff88001e209c20 0000000100000200 000000000000006b
 0000000000000000 ffff880000000000 00000000000111c0 ffff88001e231fd8
 ffff88001e230010 ffff88001e231fd8 00000000000111c0 ffffffff8180d020
Call Trace:
 [<ffffffff810b8b4c>] ? exit_mmap+0x6c/0x130
 [<ffffffff81047b57>] ? mmput+0x37/0x100
 [<ffffffff8104c07e>] ? exit_mm+0x11e/0x160
 [<ffffffff815c198c>] ? _raw_spin_lock_irq+0xc/0x10
 [<ffffffff8104da30>] ? do_exit+0x140/0x830
 [<ffffffff81007919>] ? xen_force_evtchn_callback+0x9/0x10
 [<ffffffff81007ff2>] ? check_events+0x12/0x20
 [<ffffffff8104e170>] ? do_group_exit+0x50/0xc0
 [<ffffffff8105ae05>] ? get_signal_to_deliver+0x1f5/0x520
 [<ffffffff8100b20d>] ? do_signal+0x9d/0x770
 [<ffffffff8100b945>] ? do_notify_resume+0x65/0x90
 [<ffffffff815c26e3>] ? int_signal+0x12/0x17
Code: 0f b6 d2 89 57 0c 0f b6 57 08 89 d0 83 e0 fe 88 47 08 48 8b 05 41 33 55 00 0f b6 38 48 c7 41 18 00 00 00 00 c7 41 20 00 00 00 00 <f3> 48 0f b8 c7 c7 41 24 08 00 00 00 83 f8 01 0f 94 c0 83 e2 fc
RIP  [<ffffffff810b1b21>] tlb_gather_mmu+0x31/0x60
 RSP <ffff88001e231bd0>
---[ end trace 86a5295cbfbfce3c ]---
Fixing recursive fault but reboot is needed!
invalid opcode: 0000 [#2] SMP
CPU 1
Modules linked in:

Pid: 176, comm: kworker/1:1 Tainted: G      D     3.1.0-rc2-xenU+ #3
RIP: e030:[<ffffffff810848f4>]  [<ffffffff810848f4>] __stop_cpus+0x24/0x80
RSP: e02b:ffff88001fa75c70  EFLAGS: 00010282
RAX: 0000000000000001 RBX: ffffffff8185b528 RCX: 0000001241ed0fbf
RDX: 0000000000000000 RSI: ffffffff810896b0 RDI: 0000000000000003
RBP: ffffffff810896b0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88001fa75d80 R15: ffff88001e5b8320
FS:  00007f10582d6700(0000) GS:ffff88001fee0000(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 0000000001805000 CR4: 0000000000002660
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process kworker/1:1 (pid: 176, threadinfo ffff88001fa74000, task ffff88001fae73f0)
Stack:
 0000000000000000 0000000000000000 0000000000000000 0000000000000001
 0000001241ed0fbf ffffffff81007919 ffffffff81007ff2 ffffffff8185b528
 ffffffff810896b0 0000000000000000 00000000fffffff5 ffffffff81084995
Call Trace:
 [<ffffffff81007919>] ? xen_force_evtchn_callback+0x9/0x10
 [<ffffffff81007ff2>] ? check_events+0x12/0x20
 [<ffffffff810896b0>] ? rcu_batches_completed+0x10/0x10
 [<ffffffff81084995>] ? try_stop_cpus+0x45/0x70
 [<ffffffff8108ada3>] ? synchronize_sched_expedited+0x73/0xe0
 [<ffffffff814f7b0d>] ? dev_deactivate_many+0x25d/0x270
 [<ffffffff814f01d0>] ? __linkwatch_run_queue+0x210/0x210
 [<ffffffff814f7b4d>] ? dev_deactivate+0x2d/0x50
 [<ffffffff814efd33>] ? linkwatch_do_dev+0x73/0xe0
 [<ffffffff814f0181>] ? __linkwatch_run_queue+0x1c1/0x210
 [<ffffffff814f01d0>] ? __linkwatch_run_queue+0x210/0x210
 [<ffffffff814f01f0>] ? linkwatch_event+0x20/0x30
 [<ffffffff8105ee91>] ? process_one_work+0x111/0x3b0
 [<ffffffff81060e37>] ? worker_thread+0x167/0x410
 [<ffffffff81060cd0>] ? manage_workers+0x220/0x220
 [<ffffffff81065d16>] ? kthread+0x96/0xa0
 [<ffffffff815c3974>] ? kernel_thread_helper+0x4/0x10
 [<ffffffff815c2636>] ? int_ret_from_sys_call+0x7/0x1b
 [<ffffffff815c1dbc>] ? retint_restore_args+0x5/0x6
 [<ffffffff815c3970>] ? gs_change+0x13/0x13
Code: 1f 84 00 00 00 00 00 48 83 ec 58 48 89 5c 24 38 48 89 6c 24 40 4c 89 64 24 48 4c 89 6c 24 50 48 89 fb 48 89 f5 49 89 d5 0f b6 3f <f3> 48 0f b8 c7 48 89 e7 89 c6 e8 8d fc ff ff 48 89 e1 4c 89 ea
RIP  [<ffffffff810848f4>] __stop_cpus+0x24/0x80
 RSP <ffff88001fa75c70>
---[ end trace 86a5295cbfbfce3d ]---
BUG: unable to handle kernel paging request at fffffffffffffff8
IP: [<ffffffff81065887>] kthread_data+0x7/0x10
PGD 1807067 PUD 1808067 PMD 0
Oops: 0000 [#3] SMP
CPU 1
Modules linked in:

Pid: 176, comm: kworker/1:1 Tainted: G      D     3.1.0-rc2-xenU+ #3
RIP: e030:[<ffffffff81065887>]  [<ffffffff81065887>] kthread_data+0x7/0x10
RSP: e02b:ffff88001fa759b0  EFLAGS: 00010002
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffffffc88a21
RDX: 00000000cba3627b RSI: 0000000000000001 RDI: ffff88001fae73f0
RBP: ffff88001fa75a68 R08: 0000000000000000 R09: dead000000200200
R10: ffff88001fa59c78 R11: 09f911029d74e35b R12: ffff88001fae7660
R13: 0000000000000001 R14: 0000000000000001 R15: ffff88001fae7568
FS:  00007f10582d6700(0000) GS:ffff88001fee0000(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: fffffffffffffff8 CR3: 0000000001805000 CR4: 0000000000002660
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process kworker/1:1 (pid: 176, threadinfo ffff88001fa74000, task ffff88001fae73f0)
Stack:
 ffffffff8105ff58 ffff88001fef11c0 ffffffff815bfbcc 0000000000000001
 0000000000000368 00000000fffc9e5e 0000000000000368 ffff88001fae73f0
 00000000000111c0 ffff88001fa75fd8 ffff88001fa74010 ffff88001fa75fd8
Call Trace:
 [<ffffffff8105ff58>] ? wq_worker_sleeping+0x8/0x90
 [<ffffffff815bfbcc>] ? schedule+0x40c/0x6d0
 [<ffffffff815c1935>] ? _raw_spin_lock+0x5/0x10
 [<ffffffff8104de7a>] ? do_exit+0x58a/0x830
 [<ffffffff81007fdf>] ? xen_restore_fl_direct_reloc+0x4/0x4
 [<ffffffff815c19a5>] ? _raw_spin_unlock_irqrestore+0x15/0x20
 [<ffffffff8100edb8>] ? oops_end+0xa8/0xf0
 [<ffffffff8100c8f4>] ? do_invalid_op+0x84/0xa0
 [<ffffffff810848f4>] ? __stop_cpus+0x24/0x80
 [<ffffffff810896b0>] ? rcu_batches_completed+0x10/0x10
 [<ffffffff815c37eb>] ? invalid_op+0x1b/0x20
 [<ffffffff810896b0>] ? rcu_batches_completed+0x10/0x10
 [<ffffffff810896b0>] ? rcu_batches_completed+0x10/0x10
 [<ffffffff810848f4>] ? __stop_cpus+0x24/0x80
 [<ffffffff81007919>] ? xen_force_evtchn_callback+0x9/0x10
 [<ffffffff81007ff2>] ? check_events+0x12/0x20
 [<ffffffff810896b0>] ? rcu_batches_completed+0x10/0x10
 [<ffffffff81084995>] ? try_stop_cpus+0x45/0x70
 [<ffffffff8108ada3>] ? synchronize_sched_expedited+0x73/0xe0
 [<ffffffff814f7b0d>] ? dev_deactivate_many+0x25d/0x270
 [<ffffffff814f01d0>] ? __linkwatch_run_queue+0x210/0x210
 [<ffffffff814f7b4d>] ? dev_deactivate+0x2d/0x50
 [<ffffffff814efd33>] ? linkwatch_do_dev+0x73/0xe0
 [<ffffffff814f0181>] ? __linkwatch_run_queue+0x1c1/0x210
 [<ffffffff814f01d0>] ? __linkwatch_run_queue+0x210/0x210
 [<ffffffff814f01f0>] ? linkwatch_event+0x20/0x30
 [<ffffffff8105ee91>] ? process_one_work+0x111/0x3b0
 [<ffffffff81060e37>] ? worker_thread+0x167/0x410
 [<ffffffff81060cd0>] ? manage_workers+0x220/0x220
 [<ffffffff81065d16>] ? kthread+0x96/0xa0
 [<ffffffff815c3974>] ? kernel_thread_helper+0x4/0x10
 [<ffffffff815c2636>] ? int_ret_from_sys_call+0x7/0x1b
 [<ffffffff815c1dbc>] ? retint_restore_args+0x5/0x6
 [<ffffffff815c3970>] ? gs_change+0x13/0x13
Code: 90 90 90 90 65 48 8b 04 25 40 c4 00 00 48 8b 80 18 02 00 00 8b 40 f0 c3 66 66 66 2e 0f 1f 84 00 00 00 00 00 48 8b 87 18 02 00 00
 8b 40 f8 c3 0f 1f 40 00 48 3b 3d c9 ff 91 00 74 0f 65 8b 04
RIP  [<ffffffff81065887>] kthread_data+0x7/0x10
 RSP <ffff88001fa759b0>
CR2: fffffffffffffff8
---[ end trace 86a5295cbfbfce3e ]---
Fixing recursive fault but reboot is needed!
^C
invalid opcode: 0000 [#4] SMP
CPU 0
Modules linked in:

Pid: 941, comm: bash Tainted: G      D     3.1.0-rc2-xenU+ #3
RIP: e030:[<ffffffff810b1b21>]  [<ffffffff810b1b21>] tlb_gather_mmu+0x31/0x60
RSP: e02b:ffff88001e24fbd0  EFLAGS: 00010202
RAX: ffffffff8185b520 RBX: ffff88001e7106c8 RCX: ffff88001e24fbd8
RDX: 00000000000000d0 RSI: ffff88001e10ee80 RDI: 0000000000000003
RBP: ffff88001e10ee80 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000deadbeef R11: 09f911029d74e35b R12: ffff88001fb240d0
R13: ffff88001e10eee0 R14: 000000000000017e R15: 00000000000001e6
FS:  00007f1fdad75700(0000) GS:ffff88001fec7000(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffffffffff600400 CR3: 0000000001805000 CR4: 0000000000002660
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process bash (pid: 941, threadinfo ffff88001e24e000, task ffff88001fb240d0)
Stack:
 ffffffff810b8b4c ffff88001e10ee80 000000011fb202d0 0000000000000001
 0000000000000000 0000000000000000 09f911029d74e35b 0000000000000000
 ffffffff81007919 ffffffff81007ff2 09f911029d74e35b 0000000000000000
Call Trace:
 [<ffffffff810b8b4c>] ? exit_mmap+0x6c/0x130
 [<ffffffff81007919>] ? xen_force_evtchn_callback+0x9/0x10
 [<ffffffff81007ff2>] ? check_events+0x12/0x20
 [<ffffffff81047b57>] ? mmput+0x37/0x100
 [<ffffffff8104c07e>] ? exit_mm+0x11e/0x160
 [<ffffffff815c198c>] ? _raw_spin_lock_irq+0xc/0x10
 [<ffffffff8107fc30>] ? acct_collect+0x170/0x1b0
 [<ffffffff8104e09e>] ? do_exit+0x7ae/0x830
 [<ffffffff810d0332>] ? kmem_cache_free+0xe2/0x1f0
 [<ffffffff8104e170>] ? do_group_exit+0x50/0xc0
 [<ffffffff8105ae05>] ? get_signal_to_deliver+0x1f5/0x520
 [<ffffffff81007919>] ? xen_force_evtchn_callback+0x9/0x10
 [<ffffffff81007ff2>] ? check_events+0x12/0x20
 [<ffffffff8100b20d>] ? do_signal+0x9d/0x770
 [<ffffffff81057fb0>] ? __set_task_blocked+0x30/0x80
 [<ffffffff81007fdf>] ? xen_restore_fl_direct_reloc+0x4/0x4
 [<ffffffff81004286>] ? xen_clts+0x66/0x80
 [<ffffffff8101576b>] ? restore_i387_xstate+0xcb/0x1b0
 [<ffffffff81058054>] ? set_current_blocked+0x54/0x70
 [<ffffffff8100b945>] ? do_notify_resume+0x65/0x90
 [<ffffffff815c26e3>] ? int_signal+0x12/0x17
Code: 0f b6 d2 89 57 0c 0f b6 57 08 89 d0 83 e0 fe 88 47 08 48 8b 05 41 33 55 00 0f b6 38 48 c7 41 18 00 00 00 00 c7 41 20 00 00 00 00 <f3> 48 0f b8 c7 c7 41 24 08 00 00 00 83 f8 01 0f 94 c0 83 e2 fc
RIP  [<ffffffff810b1b21>] tlb_gather_mmu+0x31/0x60
 RSP <ffff88001e24fbd0>
---[ end trace 86a5295cbfbfce3f ]---
Fixing recursive fault but reboot is needed!