ubuntu 11.04 ati open driver bug. Crash during boot

[Antonio Litterio]

Hi Ubuntu Developers,
I'm Antonio, and I need to notify you a bug in Nutty. I installed Ubuntu 11.04 correctly, and at first login it works without any problems, but with second login, during boot, the screen becomes black and anything stop to work. This happens whit and without updating system in first login.
My system is:
HP Pavilion dv6
CardVideo ati HD5000
OS Ubuntu 11.04 32bit

I found into a kernel log crash. It is reported above:

May 2 09:24:55 dev-0123 kernel: [ 13.174916] BUG: unable to handle kernel paging request at f8f01ffc
May 2 09:24:55 dev-0123 kernel: [ 13.174951] IP: [<f90a24b9>] evergreen_cp_start+0x49/0xad0 [radeon]
May 2 09:24:55 dev-0123 kernel: [ 13.175008] *pde = 318c8067 *pte = 00000000
May 2 09:24:55 dev-0123 kernel: [ 13.175029] Oops: 0002 [#1] SMP
May 2 09:24:55 dev-0123 kernel: [ 13.175048] last sysfs file: /sys/module/snd_hda_intel/initstate
May 2 09:24:55 dev-0123 kernel: [ 13.175075] Modules linked in: snd_hda_codec_idt radeon(+) snd_hda_intel(+) snd_hda_codec snd_hwdep snd_pcm ttm arc4 snd_seq_midi snd_rawmidi snd_seq_midi_event i915 snd_seq joydev hp_wmi sparse_keymap ath9k snd_timer snd_seq_device snd drm_kms_helper uvcvideo drm mac80211 videodev soundcore snd_page_alloc ath9k_common hp_accel ath9k_hw psmouse lis3lv02d ath serio_raw intel_ips cfg80211 i2c_algo_bit video input_polldev lp parport ahci libahci r8169
May 2 09:24:55 dev-0123 kernel: [ 13.175315]
May 2 09:24:55 dev-0123 kernel: [ 13.175323] Pid: 367, comm: modprobe Not tainted 2.6.38-8-generic #42-Ubuntu Hewlett-Packard HP Pavilion dv6 Notebook PC/144A
May 2 09:24:55 dev-0123 kernel: [ 13.175377] EIP: 0060:[<f90a24b9>] EFLAGS: 00010287 CPU: 2
May 2 09:24:55 dev-0123 kernel: [ 13.175419] EIP is at evergreen_cp_start+0x49/0xad0 [radeon]
May 2 09:24:55 dev-0123 kernel: [ 13.175444] EAX: 00000000 EBX: f194f000 ECX: ffffffff EDX: f8f01ffc
May 2 09:24:55 dev-0123 kernel: [ 13.175471] ESI: 00000911 EDI: 00000011 EBP: f1841d14 ESP: f1841cf4
May 2 09:24:55 dev-0123 kernel: [ 13.175498] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
May 2 09:24:55 dev-0123 kernel: [ 13.175523] Process modprobe (pid: 367, ti=f1840000 task=f1839940 task.ti=f1840000)
May 2 09:24:55 dev-0123 kernel: [ 13.175556] Stack:
May 2 09:24:55 dev-0123 kernel: [ 13.175565] 00000060 00000246 3b8dc85f f194f000 00000000 f194f000 00000911 00000011
May 2 09:24:55 dev-0123 kernel: [ 13.175604] f1841d28 f90a508d f194f000 00000000 f3e58070 f1841d44 f90a6c57 f907b4d1
May 2 09:24:55 dev-0123 kernel: [ 13.175643] f90c6820 f1841d44 f194f000 00000000 f1841d60 f90a7fe7 c132ef88 c16b9739
May 2 09:24:55 dev-0123 kernel: [ 13.175682] Call Trace:
May 2 09:24:55 dev-0123 kernel: [ 13.175713] [<f90a508d>] evergreen_cp_resume+0x35d/0x5c0 [radeon]
May 2 09:24:55 dev-0123 kernel: [ 13.175758] [<f90a6c57>] evergreen_startup+0x117/0x200 [radeon]
May 2 09:24:55 dev-0123 kernel: [ 13.175803] [<f907b4d1>] ? r600_pcie_gart_init+0x61/0x70 [radeon]
May 2 09:24:55 dev-0123 kernel: [ 13.175848] [<f90a7fe7>] evergreen_init+0x187/0x2a0 [radeon]
May 2 09:24:55 dev-0123 kernel: [ 13.175878] [<c132ef88>] ? vga_switcheroo_register_client+0x98/0xd0
May 2 09:24:55 dev-0123 kernel: [ 13.175921] [<f9028701>] radeon_device_init+0x381/0x400 [radeon]
May 2 09:24:55 dev-0123 kernel: [ 13.175963] [<f9026f50>] ? radeon_switcheroo_can_switch+0x0/0x50 [radeon]
May 2 09:24:55 dev-0123 kernel: [ 13.176008] [<f9029ba4>] radeon_driver_load_kms+0x94/0x160 [radeon]
May 2 09:24:55 dev-0123 kernel: [ 13.177244] [<f8679694>] drm_get_pci_dev+0x144/0x2b0 [drm]
May 2 09:24:55 dev-0123 kernel: [ 13.178531] [<c102d8c8>] ? default_spin_lock_flags+0x8/0x10
May 2 09:24:55 dev-0123 kernel: [ 13.179834] [<c102d8c8>] ? default_spin_lock_flags+0x8/0x10
May 2 09:24:55 dev-0123 kernel: [ 13.181153] [<f90b0b58>] ? radeon_pci_probe+0x2c/0x94 [radeon]
May 2 09:24:55 dev-0123 kernel: [ 13.182503] [<f90b0b58>] ? radeon_pci_probe+0x2c/0x94 [radeon]
May 2 09:24:55 dev-0123 kernel: [ 13.183855] [<f90b0bbb>] radeon_pci_probe+0x8f/0x94 [radeon]
May 2 09:24:55 dev-0123 kernel: [ 13.185217] [<c1291f77>] local_pci_probe+0x47/0xb0
May 2 09:24:55 dev-0123 kernel: [ 13.186601] [<c12933f8>] pci_device_probe+0x68/0x90
May 2 09:24:55 dev-0123 kernel: [ 13.187993] [<c1333d8d>] really_probe+0x4d/0x150
May 2 09:24:55 dev-0123 kernel: [ 13.189412] [<c133bffb>] ? pm_runtime_barrier+0x4b/0xb0
May 2 09:24:55 dev-0123 kernel: [ 13.190844] [<c133402c>] driver_probe_device+0x3c/0x60
May 2 09:24:55 dev-0123 kernel: [ 13.192294] [<c13340d1>] __driver_attach+0x81/0x90
May 2 09:24:55 dev-0123 kernel: [ 13.193763] [<c1334050>] ? __driver_attach+0x0/0x90
May 2 09:24:55 dev-0123 kernel: [ 13.195248] [<c1333188>] bus_for_each_dev+0x48/0x70
May 2 09:24:55 dev-0123 kernel: [ 13.196760] [<c1292e00>] ? pci_device_remove+0x0/0xf0
May 2 09:24:55 dev-0123 kernel: [ 13.198289] [<c1333c3e>] driver_attach+0x1e/0x20
May 2 09:24:55 dev-0123 kernel: [ 13.199817] [<c1334050>] ? __driver_attach+0x0/0x90
May 2 09:24:55 dev-0123 kernel: [ 13.201333] [<c1333858>] bus_add_driver+0xb8/0x250
May 2 09:24:55 dev-0123 kernel: [ 13.202863] [<c1292e00>] ? pci_device_remove+0x0/0xf0
May 2 09:24:55 dev-0123 kernel: [ 13.204403] [<c1334316>] driver_register+0x66/0x110
May 2 09:24:55 dev-0123 kernel: [ 13.205909] [<c1292515>] __pci_register_driver+0x45/0xb0
May 2 09:24:55 dev-0123 kernel: [ 13.207411] [<f8679ac6>] drm_pci_init+0x96/0xc0 [drm]
May 2 09:24:55 dev-0123 kernel: [ 13.208895] [<f8672044>] drm_init+0x54/0x70 [drm]
May 2 09:24:55 dev-0123 kernel: [ 13.210361] [<f86120b7>] radeon_init+0xb7/0x1000 [radeon]
May 2 09:24:55 dev-0123 kernel: [ 13.211783] [<c1001255>] do_one_initcall+0x35/0x170
May 2 09:24:55 dev-0123 kernel: [ 13.213182] [<f8612000>] ? radeon_init+0x0/0x1000 [radeon]
May 2 09:24:55 dev-0123 kernel: [ 13.214530] [<c108899b>] sys_init_module+0xdb/0x230
May 2 09:24:55 dev-0123 kernel: [ 13.215864] [<c1509bf4>] syscall_call+0x7/0xb
May 2 09:24:55 dev-0123 kernel: [ 13.217169] Code: f0 0f 85 84 08 00 00 8b 83 a4 07 00 00 85 c0 0f 8e 5d 08 00 00 8b 83 94 07 00 00 8d 14 85 00 00 00 00 83 c0 01 03 93 8c 07 00 00 <c7> 02 00 44 05 c0 8b 93 a4 07 00 00 23 83 b4 07 00 00 83 ab a0
May 2 09:24:55 dev-0123 kernel: [ 13.219969] EIP: [<f90a24b9>] evergreen_cp_start+0x49/0xad0 [radeon] SS:ESP 0068:f1841cf4
May 2 09:24:55 dev-0123 kernel: [ 13.221337] CR2: 00000000f8f01ffc
May 2 09:24:55 dev-0123 kernel: [ 13.222663] ---[ end trace a9d37c188b3f99d7 ]---

Have a nice day
Antonio Litterio