I have seen something very similar on gutsy when starting mediatomb: [ 195.672091] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000030 [ 195.672097] printing eip: [ 195.672099] c018870a [ 195.672101] *pde = 00000000 [ 195.672103] Oops: 0000 [#1] [ 195.672105] SMP [ 195.672108] Modules linked in: nls_cp437 isofs udf xt_pkttype ipt_LOG ipt_REJECT xt_tcpudp nf_conntrack_ipv4 xt_state nf_conntrack nfnetlink iptable_filter ip_tables x_tables binfmt_misc rfcomm l2cap nfs nfsd exportfs lockd sunrpc tun acpi_cpufreq cpufreq_ondemand cpufreq_conservative cpufreq_userspace cpufreq_powersave cpufreq_stats freq_table button battery ac dock container asus_acpi video sbs dm_crypt dm_mod dvb_bt8xx bt878 bttv w83627ehf i2c_isa eeprom i2c_i801 lp fuse joydev snd_hda_intel snd_pcm_oss snd_mixer_oss snd_pcm cx22702 snd_seq_dummy snd_seq_oss cx88_dvb cx88_vp3054_i2c dvb_pll video_buf_dvb dvb_core snd_seq_midi snd_rawmidi ati_remote hci_usb usbhid snd_seq_midi_event bluetooth nvidia(P) hid cx8800 serio_raw pcspkr snd_seq snd_timer snd_seq_device cx8802 cx88xx parport_pc parport ir_common psmouse i2c_algo_bit tveeprom video_buf i2c_core videodev v4l1_compat compat_ioctl32 v4l2_common btcx_risc intel_agp iTCO_wdt iTCO_vendor_support snd soundcore snd_page_alloc agpgart shpchp pci_hotplug ipv6 evdev ext3 jbd mbcache sd_mod sg sr_mod cdrom ata_piix e100 mii ehci_hcd ata_generic libata scsi_mod uhci_hcd usbcore thermal processor fan capability commoncap [ 195.672207] CPU: 0 [ 195.672207] EIP: 0060:[<c018870a>] Tainted: P VLI [ 195.672209] EFLAGS: 00010202 (2.6.22-7-generic #1) [ 195.672215] EIP is at permission+0x2a/0x120 [ 195.672217] eax: 00000000 ebx: f5a12c38 ecx: f3557f04 edx: 00006970 [ 195.672220] esi: fffffff3 edi: 00000002 ebp: f3557f04 esp: f3557ee8 [ 195.672223] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 [ 195.672226] Process touch (pid: 7142, ti=f3556000 task=f42f6520 task.ti=f3556000) [ 195.672228] Stack: f5a103c0 fffffff3 00000000 f4016300 c01a0e55 c016d678 f5a12c38 f4016300 [ 195.672236] ffffff9c f3557f30 00000000 c017f595 f4016300 00000000 f5a12c98 b7f140e4 [ 195.672243] f4461f20 f3526c40 00000c50 f55fab7c 00000000 00000000 df826ac4 00000002 [ 195.672250] Call Trace: [ 195.672284] [<c01a0e55>] do_utimes+0x1c5/0x1f0 [ 195.672290] [<c016d678>] __handle_mm_fault+0x288/0xb00 [ 195.672331] [<c017f595>] nameidata_to_filp+0x35/0x40 [ 195.672464] [<c02f482a>] do_page_fault+0x37a/0x680 [ 195.672549] [<c01a0f62>] sys_utimensat+0x22/0xa0 [ 195.672581] [<c02f44b0>] do_page_fault+0x0/0x680 [ 195.672595] [<c01041d2>] sysenter_past_esp+0x6b/0xa9 [ 195.672660] [<c02f0000>] iw_handler_get_private+0x40/0x80 [ 195.672718] ======================= [ 195.672720] Code: 00 83 ec 10 89 7c 24 08 89 d7 f7 c7 02 00 00 00 89 1c 24 89 c3 89 6c 24 0c 89 cd 89 74 24 04 0f b7 50 6a 74 1c 8b 80 98 00 00 00 <f6> 40 30 01 0f 85 83 00 00 00 f6 83 3c 01 00 00 08 75 73 8d 76 [ 195.672755] EIP: [<c018870a>] permission+0x2a/0x120 SS:ESP 0068:f3557ee8
-- touch (do_utimes) causes NULL pointer dereference https://bugs.launchpad.net/bugs/124211 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs