Comment 6 for bug 138915

Confirmed here with LiveCD daily build of Gutsy 32-bit 20070912.1 on Sony Vaio PCG-SRX51P.

[ 429.896000] BUG: unable to handle kernel NULL pointer dereference at virtual address 000000a0
[ 429.896000] printing eip:
[ 429.896000] c017ebbe
[ 429.896000] *pde = 00000000
[ 429.896000] Oops: 0000 [#1]
[ 429.896000] SMP
[ 429.896000] Modules linked in: rfcomm l2cap sony_laptop sonypi ipv6 ppdev parport_pc lp parport speedstep_ich speedstep_lib cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_ondemand freq_table cpufreq_conservative video sbs container button dock battery ac snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event pcmcia snd_seq af_packet joydev snd_timer snd_seq_device hci_usb bluetooth yenta_socket snd rsrc_nonstatic pcmcia_core pcspkr psmouse serio_raw soundcore snd_page_alloc iTCO_wdt intel_agp agpgart i2c_i810 i2c_algo_bit shpchp iTCO_vendor_support i2c_core pci_hotplug evdev squashfs loop unionfs nls_cp437 isofs sr_mod cdrom ext3 jbd mbcache usb_storage ide_core sbp2 libusual sg sd_mod uhci_hcd usbcore ata_piix ata_generic libata scsi_mod e100 mii ohci1394 ieee1394 thermal processor fan fuse apparmor commoncap
[ 429.896000] CPU: 0
[ 429.896000] EIP: 0060:[__dentry_open+62/448] Not tainted VLI
[ 429.896000] EFLAGS: 00010246 (2.6.22-11-generic #1)
[ 429.896000] EIP is at __dentry_open+0x3e/0x1c0
[ 429.896000] eax: d50eff68 ebx: d166ddc0 ecx: 00000000 edx: 00000000
[ 429.896000] esi: 00000000 edi: d50eff68 ebp: 00000000 esp: c9361e7c
[ 429.896000] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068
[ 429.896000] Process apport-checkrep (pid: 9078, ti=c9360000 task=d7d54530 task.ti=c9360000)
[ 429.896000] Stack: 00000000 d50eff68 00000000 00008000 d50eff68 00000000 c017ed74 d166ddc0
[ 429.896000] 00000000 00000000 d08f56e0 00000001 d89e3e9b c9361f30 ffffffd8 c01891c5
[ 429.896000] d060b7b0 fffffff4 d50ef6e8 00000000 00000001 00008001 00000000 d50eff68
[ 429.896000] Call Trace:
[ 429.896000] [dentry_open+52/128] dentry_open+0x34/0x80
[ 429.896000] [<d89e3e9b>] unionfs_open+0x22b/0x5e0 [unionfs]
[ 429.896000] [may_open+101/624] may_open+0x65/0x270
[ 429.896000] [open_namei+109/1536] open_namei+0x6d/0x600
[ 429.896000] [<d89e3c70>] unionfs_open+0x0/0x5e0 [unionfs]
[ 429.896000] [__dentry_open+184/448] __dentry_open+0xb8/0x1c0
[ 429.896000] [nameidata_to_filp+53/64] nameidata_to_filp+0x35/0x40
[ 429.896000] [do_filp_open+80/96] do_filp_open+0x50/0x60
[ 429.896000] [do_sys_open+78/240] do_sys_open+0x4e/0xf0
[ 429.896000] [sys_open+28/32] sys_open+0x1c/0x20
[ 429.896000] [sysenter_past_esp+107/169] sysenter_past_esp+0x6b/0xa9
[ 429.896000] =======================
[ 429.896000] Code: 89 74 24 0c 89 7c 24 10 89 44 24 04 89 14 24 89 4b 18 83 c1 01 83 e1 03 83 c9 0c 66 89 4b 1c 83 e1 02 8b 70 0c 0f 85 52 01 00 00 <8b> 86 a0 00 00 00 89 83 8c 00 00 00 8b 44 24 04 89 43 0c 8b 04
[ 429.896000] EIP: [__dentry_open+62/448] __dentry_open+0x3e/0x1c0 SS:ESP 0068:c9361e7c