As suggested I cloned the bug from 619457. I attach the lsmod results since the ones posted on paste.debian.net are no longer available.
Paolo
paolo@saturn:~$ uname -a Linux saturn 2.6.38-2-686-bigmem #1 SMP Tue Mar 29 18:09:13 UTC 2011 i686 GNU/Linux paolo@saturn:~$ lsmod Module Size Used by vboxnetadp 13120 0 vboxnetflt 23683 0 vboxdrv 147237 2 vboxnetadp,vboxnetflt acpi_cpufreq 12737 1 mperf 12387 1 acpi_cpufreq cpufreq_powersave 12422 0 cpufreq_userspace 12520 0 cpufreq_conservative 13598 0 cpufreq_stats 12670 0 parport_pc 21895 0 ppdev 12621 0 lp 12858 0 parport 27018 3 parport_pc,ppdev,lp sco 13219 2 rfcomm 31960 0 bnep 17147 2 l2cap 35435 6 rfcomm,bnep crc16 12327 1 l2cap bluetooth 50119 6 sco,bnep,rfcomm,l2cap usb_storage 34951 0 uas 12975 0 snd_hrtimer 12540 1 binfmt_misc 12778 1 uinput 12984 1 microcode 13213 0 fuse 55640 1 loop 17805 0 snd_hda_codec_hdmi 21857 1 snd_hda_codec_analog 60504 1 arc4 12418 2 snd_hda_intel 21529 1 snd_hda_codec 57563 3 snd_hda_codec_hdmi,snd_hda_codec_analog,snd_hda_intel uvcvideo 52490 0 i915 276436 2 snd_hwdep 12906 1 snd_hda_codec videodev 48418 1 uvcvideo snd_pcm 52774 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec ecb 12649 2 snd_seq 39172 1 snd_timer 22171 3 snd_hrtimer,snd_pcm,snd_seq snd_seq_device 12995 1 snd_seq ath9k 71303 0 drm_kms_helper 26501 1 i915 snd 38153 12 snd_hda_codec_hdmi,snd_hda_codec_analog,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_seq,snd_timer,snd_seq_device drm 128416 3 i915,drm_kms_helper mac80211 160285 1 ath9k ath9k_common 12613 1 ath9k ath9k_hw 245846 2 ath9k,ath9k_common ath 17021 2 ath9k,ath9k_hw i2c_algo_bit 12706 1 i915 soundcore 12878 1 snd cfg80211 106889 3 ath9k,mac80211,ath snd_page_alloc 12841 2 snd_hda_intel,snd_pcm hp_wmi 12926 0 i2c_core 18989 5 videodev,i915,drm_kms_helper,drm,i2c_algo_bit ac 12552 0 battery 12926 0 sparse_keymap 12680 1 hp_wmi joydev 16906 0 power_supply 13283 2 ac,battery wmi 13018 1 hp_wmi rfkill 18510 5 bluetooth,cfg80211,hp_wmi psmouse 45863 0 hp_accel 20984 0 tpm_tis 12949 0 lis3lv02d 17483 1 hp_accel tpm 17454 1 tpm_tis tpm_bios 12799 1 tpm evdev 13084 17 button 12866 1 i915 container 12525 0 processor 26983 3 acpi_cpufreq pcspkr 12515 0 serio_raw 12758 0 input_polldev 12802 1 lis3lv02d video 17345 1 i915 ext3 98001 1 jbd 40818 1 ext3 mbcache 12810 1 ext3 sg 21385 0 sr_mod 17418 0 sd_mod 34941 3 crc_t10dif 12332 1 sd_mod cdrom 34631 1 sr_mod usbhid 35168 0 hid 59736 1 usbhid uhci_hcd 21850 0 ahci 20897 2 libahci 22161 1 ahci libata 131904 2 ahci,libahci scsi_mod 134369 6 usb_storage,uas,sg,sr_mod,sd_mod,libata ehci_hcd 34919 0 usbcore 99058 7 usb_storage,uas,uvcvideo,usbhid,uhci_hcd,ehci_hcd sky2 39931 0 nls_base 12649 1 usbcore thermal 13058 0 fan 12594 0 thermal_sys 17667 4 processor,video,thermal,fan
paolo@saturn:~$ uname -a Linux saturn 2.6.38-1-686-bigmem #1 SMP Wed Mar 16 18:21:02 UTC 2011 i686 GNU/Linux paolo@saturn:~$ lsmod Module Size Used by vboxnetadp 5648 0 vboxnetflt 15075 0 vboxdrv 142765 2 vboxnetadp,vboxnetflt acpi_cpufreq 4429 1 mperf 955 1 acpi_cpufreq cpufreq_powersave 622 0 cpufreq_userspace 1492 0 cpufreq_conservative 6198 0 cpufreq_stats 1942 0 parport_pc 15663 0 ppdev 4049 0 lp 5594 0 parport 20898 3 parport_pc,ppdev,lp sco 6039 2 bnep 7739 2 rfcomm 23648 0 l2cap 26999 6 bnep,rfcomm crc16 1043 1 l2cap bluetooth 39747 6 sco,bnep,rfcomm,l2cap snd_hrtimer 1148 1 binfmt_misc 4762 1 uinput 5048 1 microcode 8093 0 fuse 48252 1 loop 10505 0 snd_hda_codec_hdmi 16945 1 snd_hda_codec_analog 55472 1 usbhid 25432 0 uvcvideo 45396 0 hid 51616 1 usbhid videodev 45006 1 uvcvideo snd_hda_intel 16521 1 snd_hda_codec 51875 3 snd_hda_codec_hdmi,snd_hda_codec_analog,snd_hda_intel snd_hwdep 3990 1 snd_hda_codec i915 268060 2 snd_pcm 47006 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec snd_seq 34344 1 snd_timer 12379 3 snd_hrtimer,snd_pcm,snd_seq snd_seq_device 3667 1 snd_seq tpm_tis 5509 0 hp_wmi 4074 0 sparse_keymap 1940 1 hp_wmi tpm 8118 1 tpm_tis arc4 1010 2 ecb 1421 2 snd 33749 12 snd_hda_codec_hdmi,snd_hda_codec_analog,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_seq,snd_timer,snd_seq_device drm_kms_helper 19765 1 i915 soundcore 3390 1 snd ath9k 64115 0 snd_page_alloc 5009 2 snd_hda_intel,snd_pcm mac80211 153217 1 ath9k ath9k_common 1309 1 ath9k pcspkr 1227 0 drm 122248 3 i915,drm_kms_helper psmouse 39239 0 joydev 6906 0 i2c_algo_bit 3438 1 i915 i2c_core 12965 5 videodev,i915,drm_kms_helper,drm,i2c_algo_bit wmi 6202 1 hp_wmi ath9k_hw 240390 2 ath9k,ath9k_common tpm_bios 3455 1 tpm ath 10557 2 ath9k,ath9k_hw hp_accel 12420 0 ac 1648 0 cfg80211 99921 3 ath9k,mac80211,ath serio_raw 2910 0 rfkill 10550 5 bluetooth,hp_wmi,cfg80211 lis3lv02d 7199 1 hp_accel evdev 6208 17 battery 4370 0 input_polldev 2066 1 lis3lv02d video 9241 1 i915 power_supply 5535 2 ac,battery container 1817 0 button 3634 1 i915 processor 21047 3 acpi_cpufreq ext3 92941 1 jbd 31766 1 ext3 mbcache 3686 1 ext3 sg 15549 0 sd_mod 25177 3 sr_mod 10794 0 crc_t10dif 1028 1 sd_mod cdrom 26023 1 sr_mod uhci_hcd 15906 0 ahci 16617 2 ehci_hcd 29419 0 libahci 13437 1 ahci libata 123440 2 ahci,libahci thermal 6062 0 fan 1742 0 usbcore 94242 5 usbhid,uvcvideo,uhci_hcd,ehci_hcd scsi_mod 127781 4 sg,sd_mod,sr_mod,libata thermal_sys 9943 4 video,processor,thermal,fan sky2 34375 0 nls_base 4529 1 usbcore
