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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: Launchpad Bug Tracker <1014343@xxxxxxxxxxxxxxxxxx>
Date: Fri, 25 Oct 2013 04:17:29 -0000
Reply-to: Bug 1014343 <1014343@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

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

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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:
  Expired

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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