I note that dmesg shows [50563.152041] hub 7-0:1.0: port 2 disabled by hub (EMI?), re-enabling... [50563.152050] usb 7-2: USB disconnect, device number 2 [50563.219388] BUG: unable to handle kernel NULL pointer dereference at 00000034 [50563.219397] IP: [<f84e0596>] show_protocols+0x106/0x130 [rc_core] [50563.219407] *pdpt = 00000000306ca001 *pde = 0000000000000000 [50563.219412] Oops: 0000 [#1] SMP [50563.219417] Modules linked in: rfcomm bluetooth autofs4 dm_crypt snd_hda_codec_hdmi ir_lirc_codec lirc_dev ir_mce_kbd_decoder ir_sanyo_decoder ir_sony_decoder ir_jvc_decoder ir_rc6_decoder ir_rc5_decoder ir_nec_decoder nvidia(PO) snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event nls_utf8 snd_seq cifs snd_timer snd_seq_device fscache snd soundcore snd_page_alloc rc_rc6_mce asus_atk0110 mceusb rc_core kvm_intel kvm lpc_ich mac_hid microcode psmouse serio_raw lp parport coretemp dm_mirror dm_region_hash dm_log btrfs zlib_deflate libcrc32c pata_marvell atl1e [50563.219475] Pid: 2759, comm: cat Tainted: P O 3.5.0-999-generic #201207240436 System manufacturer P5Q SE/P5Q SE [50563.219479] EIP: 0060:[<f84e0596>] EFLAGS: 00010202 CPU: 1 [50563.219485] EIP is at show_protocols+0x106/0x130 [rc_core] [50563.219488] EAX: 00000000 EBX: f0768000 ECX: ea64d000 EDX: dbe1a000 [50563.219491] ESI: 00000001 EDI: c161e46c EBP: dbe1bf10 ESP: dbe1bee0 [50563.219493] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [50563.219496] CR0: 8005003b CR2: 00000034 CR3: 1be06000 CR4: 000007f0 [50563.219499] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [50563.219502] DR6: ffff0ff0 DR7: 00000400 [50563.219505] Process cat (pid: 2759, ti=dbe1a000 task=f6f6f1a0 task.ti=dbe1a000) [50563.219507] Stack: [50563.219509] 00000001 00000000 c18bbd80 f076819c ea64d000 f732fce0 00020000 c112a9e2 [50563.219520] ea58f8c0 f84e30ac f84e0490 c161e46c dbe1bf20 c13a3edf ea58f8c0 ea83ec80 [50563.219529] dbe1bf3c c11b191e 00000000 f0768008 f6d110c0 ea83ec80 dbe1bf98 dbe1bf64 [50563.219539] Call Trace: [50563.219547] [<c112a9e2>] ? handle_mm_fault+0x1e2/0x280 [50563.219555] [<f84e0490>] ? rc_g_keycode_from_table+0x90/0x90 [rc_core] [50563.219561] [<c13a3edf>] dev_attr_show+0x1f/0x50 [50563.219567] [<c11b191e>] fill_read_buffer.isra.7+0x4e/0xd0 [50563.219571] [<c11b1a1d>] sysfs_read_file+0x7d/0x90 [50563.219577] [<c115487c>] vfs_read+0x8c/0x160 [50563.219581] [<c11b19a0>] ? fill_read_buffer.isra.7+0xd0/0xd0 [50563.219586] [<c115498d>] sys_read+0x3d/0x70 [50563.219591] [<c15dd61f>] sysenter_do_call+0x12/0x28 [50563.219594] Code: 5e 5f 5d c3 90 8b 43 08 89 34 24 c7 44 24 04 be 21 4e f8 89 44 24 08 e8 b9 b1 de c8 01 c6 e9 7c ff ff ff 66 90 8b 83 b4 01 00 00 <8b> 70 34 8b 78 38 e8 4f 15 00 00 89 45 e8 89 55 e4 e9 39 ff ff [50563.219653] EIP: [<f84e0596>] show_protocols+0x106/0x130 [rc_core] SS:ESP 0068:dbe1bee0 [50563.219660] CR2: 0000000000000034 [50563.219665] ---[ end trace 0a28ebb2a3431f41 ]--- [65342.017144] init: apport pre-start process (3606) terminated with status 1 [65342.021866] init: apport post-stop process (3608) terminated with status 1
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/642517 Title: BUG: unable to handle kernel NULL pointer dereference at 0000000000000060; RIP: 0010:[<ffffffffa00a50d6>] [<ffffffffa00a50d6>] store_protocols+0xa6/0x3b0 [ir_core] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/642517/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
