Comment 9 for bug 195829

I got something from dmesg:

[ 699.013503] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000028
[ 699.013508] printing eip: dcc9ebd5 *pde = 00000000
[ 699.013514] Oops: 0002 [#1] SMP
[ 699.013517] Modules linked in: nls_cp437 nls_utf8 cifs xt_limit xt_tcpudp ipt_LOG ipt_MASQUERADE ipt_TOS ipt_REJECT nf_conntrack_irc nf_conntrack_ftp xt_state wlan_tkip af_packet l2cap bluetooth snd_rtctimer binfmt_misc via drm nfsd lockd nfs_acl auth_rpcgss sunrpc exportfs ppdev ipv6 sbs sbshc dock container acpi_cpufreq cpufreq_userspace cpufreq_stats cpufreq_conservative cpufreq_powersave cpufreq_ondemand freq_table snd_bt_sco snd_hwdep parport_pc lp parport tun pcmcia joydev wlan_scan_sta ath_rate_sample evdev snd_via82xx gameport snd_via82xx_modem snd_ac97_codec snd_mpu401_uart ac97_bus snd_pcm_oss snd_pcm psmouse snd_mixer_oss serio_raw snd_seq_dummy video output snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device pcspkr snd snd_page_alloc soundcore i2c_viapro i2c_core battery ac button yenta_socket rsrc_nonstatic ath_pci wlan pcmcia_core ath_hal(P) shpchp pci_hotplug via_agp agpgart iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack iptable_mangle iptable_filter ip_tables x_tables ext3 jbd mbcache usbhid hid sg sd_mod sr_mod cdrom via82cxxx ide_core pata_acpi via_rhine mii ehci_hcd uhci_hcd sata_via pata_via ata_generic usbcore libata scsi_mod thermal processor fan fuse vesafb fbcon tileblit font bitblit softcursor
[ 699.013581]
[ 699.013585] Pid: 10616, comm: skype Tainted: P (2.6.24-11-generic #1)
[ 699.013587] EIP: 0060:[<dcc9ebd5>] EFLAGS: 00010286 CPU: 0
[ 699.013600] EIP is at snd_card_bt_sco_playback_open+0x125/0x180 [snd_bt_sco]
[ 699.013603] EAX: 00000000 EBX: c514a400 ECX: 00000003 EDX: c15d8000
[ 699.013605] ESI: c2644240 EDI: c2644260 EBP: 00000000 ESP: c52f7e68
[ 699.013607] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[ 699.013610] Process skype (pid: 10616, ti=c52f6000 task=cba890e0 task.ti=c52f6000)
[ 699.013611] Stack: dcc9fa17 d9e43300 00000000 d9aa8710 d9aa8600 c85ad000 dcbaa936 c52f7e88
[ 699.013617] d9e43300 fffffff2 dcbaaa62 c52f7eb4 d9aa8720 00000000 00000000 cba890e0
[ 699.013621] c01269e0 d9aa8724 d9aa8724 c85ad000 dcb08ae0 00000000 c85ad000 d984f8f8
[ 699.013625] Call Trace:
[ 699.013646] [<dcbaa936>] snd_pcm_open_substream+0x46/0x80 [snd_pcm]
[ 699.013679] [<dcbaaa62>] snd_pcm_open+0xf2/0x1b0 [snd_pcm]
[ 699.013703] [<c01269e0>] default_wake_function+0x0/0x10
[ 699.013736] [<dcb034f8>] snd_open+0x78/0x150 [snd]
[ 699.013762] [<dcb03480>] snd_open+0x0/0x150 [snd]
[ 699.013778] [<c0191073>] chrdev_open+0xa3/0x190
[ 699.013803] [<c018c42f>] __dentry_open+0xbf/0x1c0
[ 699.013822] [<c018c5e5>] nameidata_to_filp+0x35/0x40
[ 699.013834] [<c0190fd0>] chrdev_open+0x0/0x190
[ 699.013846] [<c018c640>] do_filp_open+0x50/0x60
[ 699.013882] [<c018c2e2>] get_unused_fd_flags+0x52/0xd0
[ 699.013901] [<c018c69c>] do_sys_open+0x4c/0xe0
[ 699.013922] [<c018c76c>] sys_open+0x1c/0x20
[ 699.013933] [<c01053c2>] sysenter_past_esp+0x6b/0xa9
[ 699.013971] =======================
[ 699.013972] Code: f6 c9 dc 89 83 10 01 00 00 a1 0c f6 c9 dc 89 83 14 01 00 00 a1 10 f6 c9 dc 89 83 18 01 00 00 a1 14 f6 c9 dc 89 83 1c 01 00 00 90 <ff> 45 28 8d 45 34 e8 10 a5 67 e3 b8 01 00 00 00 c7 45 30 01 00
[ 699.013994] EIP: [<dcc9ebd5>] snd_card_bt_sco_playback_open+0x125/0x180 [snd_bt_sco] SS:ESP 0068:c52f7e68
[ 699.014004] ---[ end trace 9afa342c47f57586 ]---