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[Bug 1014343] Re: BUG: unable to handle kernel NULL pointer dereference at 0000000000000050; RIP: 0010:[<ffffffffa0418597>] [<ffffffffa0418597>] show_protocols+0xf7/0x120 [rc_core]

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: "Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>
Date: Sun, 25 Aug 2013 11:16:54 -0000
Reply-to: Bug 1014343 <1014343@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
selaux, this bug was reported a while ago and there hasn't been any
activity in it recently. We were wondering if this is still an issue? If
so, could you please test for this with the latest development release
of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a Terminal
(Applications->Accessories->Terminal), as it will automatically gather
and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.11-rc5

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.


** Tags added: bios-outdated-1.49 needs-upstream-testing

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

** Changed in: linux (Ubuntu)
     Assignee: Bryan Wu (cooloney) => (unassigned)

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https://bugs.launchpad.net/bugs/1014343

Title:
  BUG: unable to handle kernel NULL pointer dereference at
  0000000000000050; RIP: 0010:[<ffffffffa0418597>] [<ffffffffa0418597>]
  show_protocols+0xf7/0x120 [rc_core]

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  WORKAROUND: After removing:
  Bus 001 Device 009: ID 147a:e03e Formosa Industrial Computing, Inc. Infrared Receiver [IR605A/Q]
  everything works.

  When I remove my Thinkpad from the docking station while it is
  running, the laptop screen stays black (I have an external monitor
  attached to the docking station).

  When I put it back into the docking station in this state it shows the
  following kernel bug:

  Jun 17 17:27:38 stefan kernel: [  746.322529] BUG: unable to handle kernel NULL pointer dereference at 0000000000000050
  Jun 17 17:27:38 stefan kernel: [  746.322640] IP: [<ffffffffa0418597>] show_protocols+0xf7/0x120 [rc_core]
  Jun 17 17:27:38 stefan kernel: [  746.322732] PGD 1af6c3067 PUD 196814067 PMD 0
  Jun 17 17:27:38 stefan kernel: [  746.322799] Oops: 0000 [#1]
  Jun 17 17:27:38 stefan kernel: [  746.322804] thinkpad_acpi: unknown possible thermal alarm or keyboard event received
  Jun 17 17:27:38 stefan kernel: [  746.322814] thinkpad_acpi: unhandled HKEY event 0x6040
  Jun 17 17:27:38 stefan kernel: [  746.322818] thinkpad_acpi: please report the conditions when this event happened to ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx
  Jun 17 17:27:38 stefan kernel: [  746.323230] SMP
  Jun 17 17:27:38 stefan kernel: [  746.323276] CPU 3
  Jun 17 17:27:38 stefan kernel: [  746.323315] Modules linked in: des_generic md4 nls_utf8 cifs dm_crypt btusb xpad ff_memless snd_usb_audio snd_usbmidi_lib rc_rc6_mce uvcvideo hid_logitech_dj videodev v4l2_compat_ioctl32 ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle joydev xt_tcpudp iptable_filter ip_tables x_tables snd_hda_codec_hdmi snd_hda_codec_conexant bridge stp ir_lirc_codec ir_mce_kbd_decoder ir_sony_decoder ir_jvc_decoder ir_rc6_decoder ir_rc5_decoder ir_nec_decoder mceusb rc_core lirc_dev kvm_intel kvm bnep rfcomm parport_pc ppdev bluetooth binfmt_misc snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event arc4 snd_seq tpm_tis snd_timer snd_seq_device thinkpad_acpi nvram snd iwlwifi mac80211 coretemp cfg80211 mei(C) psmouse serio_raw mac_hid soundcore snd_page_alloc lp parport e1000e usbhid hid sdhci_pci sdhci i915 drm_kms_helper drm wmi i2c
  Jun 17 17:27:38 stefan kernel: _algo_bit video
  Jun 17 17:27:38 stefan kernel: [  746.325368]
  Jun 17 17:27:38 stefan kernel: [  746.325405] Pid: 5259, comm: cat Tainted: G         C   3.2.0-25-generic #40-Ubuntu LENOVO 4173RB5/4173RB5
  Jun 17 17:27:38 stefan kernel: [  746.325595] RIP: 0010:[<ffffffffa0418597>]  [<ffffffffa0418597>] show_protocols+0xf7/0x120 [rc_core]
  Jun 17 17:27:38 stefan kernel: [  746.325767] RSP: 0018:ffff88020b2d1e08  EFLAGS: 00010202
  Jun 17 17:27:38 stefan kernel: [  746.325861] RAX: 0000000000000000 RBX: ffff88020bf8c800 RCX: 0000000000000001
  Jun 17 17:27:38 stefan kernel: [  746.325981] RDX: ffff88020b2d1fd8 RSI: ffffffffa041c180 RDI: ffff88020bf8cad0
  Jun 17 17:27:38 stefan kernel: [  746.326108] RBP: ffff88020b2d1e48 R08: 0000000000000000 R09: 00000000000954e7
  Jun 17 17:27:38 stefan kernel: [  746.326229] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88020dd4d510
  Jun 17 17:27:38 stefan kernel: [  746.326354] R13: ffffffff81857080 R14: ffff88020bf8c810 R15: ffff8801ccda1000
  Jun 17 17:27:38 stefan kernel: [  746.326478] FS:  00007ff9b987b700(0000) GS:ffff88021e2c0000(0000) knlGS:0000000000000000
  Jun 17 17:27:38 stefan kernel: [  746.326618] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  Jun 17 17:27:38 stefan kernel: [  746.326721] CR2: 0000000000000050 CR3: 000000021032c000 CR4: 00000000000406e0
  Jun 17 17:27:38 stefan kernel: [  746.326847] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  Jun 17 17:27:38 stefan kernel: [  746.326972] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
  Jun 17 17:27:38 stefan kernel: [  746.327100] Process cat (pid: 5259, threadinfo ffff88020b2d0000, task ffff8801cce85bc0)
  Jun 17 17:27:38 stefan kernel: [  746.327233] Stack:
  Jun 17 17:27:38 stefan kernel: [  746.327275]  0000000000000000 ffff88020bf8cad0 0000000000000000 ffffffffa041c180
  Jun 17 17:27:38 stefan kernel: [  746.327422]  ffff88020dd4d510 ffffffff81857080 ffff88020bf8c810 ffff8801dc520600
  Jun 17 17:27:38 stefan kernel: [  746.327575]  ffff88020b2d1e78 ffffffff813f2320 ffff88020b2d1e68 ffffffff8111bf3e
  Jun 17 17:27:38 stefan kernel: [  746.327720] Call Trace:
  Jun 17 17:27:38 stefan kernel: [  746.327789]  [<ffffffff813f2320>] dev_attr_show+0x20/0x60
  Jun 17 17:27:38 stefan kernel: [  746.327893]  [<ffffffff8111bf3e>] ? __get_free_pages+0xe/0x40
  Jun 17 17:27:38 stefan kernel: [  746.327989]  [<ffffffff811ec666>] fill_read_buffer.isra.8+0x66/0xf0
  Jun 17 17:27:38 stefan kernel: [  746.328062]  [<ffffffff811ec794>] sysfs_read_file+0xa4/0xc0
  Jun 17 17:27:38 stefan kernel: [  746.328128]  [<ffffffff811780a0>] vfs_read+0xb0/0x180
  Jun 17 17:27:38 stefan kernel: [  746.328187]  [<ffffffff811781ba>] sys_read+0x4a/0x90
  Jun 17 17:27:38 stefan kernel: [  746.328247]  [<ffffffff81665c42>] system_call_fastpath+0x16/0x1b
  Jun 17 17:27:38 stefan kernel: [  746.328313] Code: c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 80 00 00 00 00 48 8b 53 08 48 c7 c6 da b2 41 a0 eb a0 0f 1f 00 48 8b 83 f8 02 00 00 <4c> 8b 68 50 e8 70 17 00 00 49 89 c6 e9 4c ff ff ff 48 c7 c0 ea
  Jun 17 17:27:38 stefan kernel: [  746.328836] RIP  [<ffffffffa0418597>] show_protocols+0xf7/0x120 [rc_core]
  Jun 17 17:27:38 stefan kernel: [  746.328967]  RSP <ffff88020b2d1e08>
  Jun 17 17:27:38 stefan kernel: [  746.329033] CR2: 0000000000000050
  Jun 17 17:27:39 stefan kernel: [  746.422645] thinkpad_acpi: undocked from hotplug port replicator
  Jun 17 17:27:40 stefan lircd-0.9.0[2115]: caught signal
  Jun 17 17:27:40 stefan kernel: [  747.524903] ---[ end trace 8038c875a0404baf ]---
  Jun 17 17:27:41 stefan kernel: [  748.448855] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6
  Jun 17 17:27:41 stefan kernel: [  748.448865] ata2.00: waking up from sleep
  Jun 17 17:27:41 stefan kernel: [  748.448876] ata2: hard resetting link
  Jun 17 17:27:41 stefan kernel: [  748.764954] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
  Jun 17 17:27:41 stefan kernel: [  748.890675] ata2.00: ACPI cmd e3/00:1f:00:00:00:a0 (IDLE) succeeded
  Jun 17 17:27:41 stefan kernel: [  748.890944] ata2.00: ACPI cmd e3/00:02:00:00:00:a0 (IDLE) succeeded
  Jun 17 17:27:41 stefan kernel: [  748.890957] ata2.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
  Jun 17 17:27:41 stefan kernel: [  748.897675] ata2.00: ACPI cmd e3/00:1f:00:00:00:a0 (IDLE) succeeded
  Jun 17 17:27:41 stefan kernel: [  748.897926] ata2.00: ACPI cmd e3/00:02:00:00:00:a0 (IDLE) succeeded
  Jun 17 17:27:41 stefan kernel: [  748.897938] ata2.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
  Jun 17 17:27:41 stefan kernel: [  748.900570] ata2.00: configured for UDMA/133
  Jun 17 17:27:41 stefan kernel: [  748.916932] ata2: EH complete
  Jun 17 17:27:42 stefan kernel: [  749.934215] ata2.00: disabled
  Jun 17 17:27:42 stefan kernel: [  749.935156] ACPI: \_SB_.PCI0.SAT1.PRT1 - undocking
  Jun 17 17:27:42 stefan NetworkManager[1270]: <info> (eth0): device state change: activated -> unavailable (reason 'carrier-changed') [100 20 40]
  Jun 17 17:27:42 stefan NetworkManager[1270]: <info> (eth0): deactivating device (reason 'carrier-changed') [40]
  Jun 17 17:27:42 stefan NetworkManager[1270]: <info> (eth0): canceled DHCP transaction, DHCP client pid 1994
  Jun 17 17:27:42 stefan kernel: [  750.369071] ADDRCONF(NETDEV_UP): eth0: link is not ready
  Jun 17 17:27:42 stefan avahi-daemon[1246]: Withdrawing address record for fe80::f2de:f1ff:fec9:7c13 on eth0.
  Jun 17 17:27:42 stefan avahi-daemon[1246]: Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::f2de:f1ff:fec9:7c13.
  Jun 17 17:27:42 stefan avahi-daemon[1246]: Interface eth0.IPv6 no longer relevant for mDNS.
  Jun 17 17:27:42 stefan avahi-daemon[1246]: Withdrawing address record for 192.168.178.20 on eth0.
  Jun 17 17:27:42 stefan avahi-daemon[1246]: Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.178.20.
  Jun 17 17:27:42 stefan avahi-daemon[1246]: Interface eth0.IPv4 no longer relevant for mDNS.
  Jun 17 17:27:42 stefan dnsmasq[2685]: exiting on receipt of SIGTERM
  Jun 17 17:27:42 stefan NetworkManager[1270]: <info> DNS: starting dnsmasq...
  Jun 17 17:27:42 stefan NetworkManager[1270]: <info> (eth0): writing resolv.conf to /sbin/resolvconf
  Jun 17 17:27:42 stefan dnsmasq[5388]: started, version 2.59 cache disabled
  Jun 17 17:27:42 stefan dnsmasq[5388]: compile time options: IPv6 GNU-getopt DBus i18n DHCP TFTP conntrack IDN
  Jun 17 17:27:42 stefan dnsmasq[5388]: using nameserver 192.168.178.1#53
  Jun 17 17:27:42 stefan NetworkManager[1270]: <info> Policy set 'deine Mutter hat Wlan' (wlan0) as default for IPv4 routing and DNS.
  Jun 17 17:27:42 stefan NetworkManager[1270]: <info> Policy set 'deine Mutter hat Wlan' (wlan0) as default for IPv4 routing and DNS.
  Jun 17 17:27:42 stefan dbus[1147]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
  Jun 17 17:27:42 stefan dbus[1147]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
  Jun 17 17:27:45 stefan pulseaudio[3004]: [pulseaudio] sap.c: sendmsg() failed: Das Argument ist ungültig

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-25-generic 3.2.0-25.40
  ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18
  Uname: Linux 3.2.0-25-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: amd64
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf1620000 irq 52'
     Mixer name	: 'Intel CougarPoint HDMI'
     Components	: 'HDA:14f1506e,17aa21d2,00100002 HDA:80862805,80860101,00100000'
     Controls      : 27
     Simple ctrls  : 9
  Card1.Amixer.info:
   Card hw:1 'USB'/'Aureon 7.1 USB at usb-0000:00:1a.0-1.5.4, full speed'
     Mixer name	: 'USB Mixer'
     Components	: 'USB0ccd:00b1'
     Controls      : 14
     Simple ctrls  : 6
  Card29.Amixer.info:
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown'
     Mixer name	: 'ThinkPad EC (unknown)'
     Components	: ''
     Controls      : 1
     Simple ctrls  : 1
  Card29.Amixer.values:
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [off]
  Date: Sun Jun 17 17:50:41 2012
  HibernationDevice: RESUME=UUID=fcf53cc2-920b-46c9-aebe-56ceea0a021f
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  MachineType: LENOVO 4173RB5
  ProcEnviron:
   TERM=xterm
   PATH=(custom, user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-25-generic root=UUID=2dbaae41-2cb2-4d17-889e-5ee5ed53829f ro quiet splash pcie_aspm=force i915.i915_enable_rc6=1 vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-25-generic N/A
   linux-backports-modules-3.2.0-25-generic  N/A
   linux-firmware                            1.79
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: Upgraded to precise on 2012-04-27 (50 days ago)
  dmi.bios.date: 11/29/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8CET51WW (1.31 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4173RB5
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr8CET51WW(1.31):bd11/29/2011:svnLENOVO:pn4173RB5:pvrThinkPadT420s:rvnLENOVO:rn4173RB5:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4173RB5
  dmi.product.version: ThinkPad T420s
  dmi.sys.vendor: LENOVO

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