kernel crash at login

[conjurator]

System: Ubuntu 12.04.2 LTS

this oops mostly happens after login on graphic interface, sometimes even before login.
the dump is from linux-image-3.2.0-40-generic, linux-image-3.2.0-38-generic works just fine.

if the kernel did not crash, GPU hang will be detected. they might be related.

GPU hang:
[drm:gen6_sanitize_pm] *ERROR* Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 16110000, was 16000000
[drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
[drm:i915_wait_request] *ERROR* i915_wait_request returns -11 (awaiting 3335 at 3303, next 3336)

Oops:
[ 340.911356] BUG: unable to handle kernel paging request at 0000000070707070
[ 340.913051] IP: [<ffffffff81165d3a>] kmem_cache_alloc+0x5a/0x140
[ 340.913921] PGD 206573067 PUD 0
[ 340.914777] Oops: 0000 [#1] SMP
[ 340.915631] CPU 1
[ 340.915638] Modules linked in: netconsole configfs kvm_intel kvm bnep rfcomm bluetooth parport_pc ppdev snd_hda_codec_via snd_hda_intel snd_hda_codec i915 snd_hwdep mac_hid snd_pcm snd_seq_midi drm_kms_helper drm mei(C) i2c_algo_bit eeepc_wmi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device asus_wmi snd soundcore sparse_keymap serio_raw wmi snd_page_alloc video lp parport usb_storage usbhid hid btrfs e1000e zlib_deflate libcrc32c
[ 340.919373]
[ 340.920326] Pid: 1986, comm: console-kit-dae Tainted: G C 3.2.0-40-generic #64-Ubuntu System manufacturer System Product Name/P8H61-M LX3 R2.0
[ 340.921436] RIP: 0010:[<ffffffff81165d3a>] [<ffffffff81165d3a>] kmem_cache_alloc+0x5a/0x140
[ 340.922889] RSP: 0018:ffff8801ca64dd28 EFLAGS: 00010202
[ 340.924331] RAX: 0000000000000000 RBX: 0000000000000002 RCX: 00000000000034e3
[ 340.925601] RDX: 00000000000034e2 RSI: 0000000000016ec0 RDI: ffff880217408e00
[ 340.926649] RBP: ffff8801ca64dd78 R08: ffff88021fa96ec0 R09: ffffc90000002000
[ 340.927705] R10: 0000000000000000 R11: ffffc90000002000 R12: ffff880217408e00
[ 340.928767] R13: 0000000070707070 R14: ffffffff811914c4 R15: 00000000000000d0
[ 340.929846] FS: 00007f9a8e86b7c0(0000) GS:ffff88021fa80000(0000) knlGS:0000000000000000
[ 340.930931] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 340.932021] CR2: 0000000070707070 CR3: 00000002001a5000 CR4: 00000000000406e0
[ 340.933123] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 340.934678] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 340.936230] Process console-kit-dae (pid: 1986, threadinfo ffff8801ca64c000, task ffff8801f4d89700)
[ 340.937819] Stack:
[ 340.939395] ffff8801ca64dd38 00000000744bd5dd ffff8801ca64dd58 ffff8801ca64de83
[ 340.941018] ffffffff81a4d5a4 0000000000000002 ffff8801ca64de08 ffff8801cc2ffe40
[ 340.942208] ffff88021740d800 ffffffff8118c080 ffff8801ca64dda8 ffffffff811914c4
[ 340.943382] Call Trace:
[ 340.944539] [<ffffffff8118c080>] ? fillonedir+0xd0/0xd0
[ 340.945708] [<ffffffff811914c4>] __d_alloc+0x34/0x180
[ 340.946878] [<ffffffff811918f5>] d_alloc+0x25/0x90
[ 340.948047] [<ffffffff811de103>] proc_fill_cache+0xf3/0x170
[ 340.949265] [<ffffffff81318e84>] ? snprintf+0x34/0x40
[ 340.950890] [<ffffffff811ddcf0>] ? proc_fdinfo_instantiate+0xa0/0xa0
[ 340.952522] [<ffffffff8118c080>] ? fillonedir+0xd0/0xd0
[ 340.953876] [<ffffffff811de484>] proc_readfd_common+0xf4/0x1f0
[ 340.955065] [<ffffffff811ddcf0>] ? proc_fdinfo_instantiate+0xa0/0xa0
[ 340.956253] [<ffffffff8118c080>] ? fillonedir+0xd0/0xd0
[ 340.957571] [<ffffffff811de5b5>] proc_readfd+0x15/0x20
[ 340.959220] [<ffffffff8118bf80>] vfs_readdir+0xb0/0xe0
[ 340.960864] [<ffffffff81184b65>] ? putname+0x35/0x50
[ 340.962513] [<ffffffff8118c259>] sys_getdents+0x89/0x100
[ 340.964169] [<ffffffff81666a82>] system_call_fastpath+0x16/0x1b
[ 340.965635] Code: 00 4d 8b 04 24 65 4c 03 04 25 50 da 00 00 49 8b 50 08 4d 8b 28 4d 85 ed 0f 84 d8 00 00 00 49 63 44 24 20 49 8b 34 24 48 8d 4a 01 <49> 8b 5c 05 00 4c 89 e8 65 48 0f c7 0e 0f 94 c0 84 c0 74 c2 4d
[ 340.968293] RIP [<ffffffff81165d3a>] kmem_cache_alloc+0x5a/0x140
[ 340.969747] RSP <ffff8801ca64dd28>
[ 340.971501] CR2: 0000000070707070
[ 341.089735] ---[ end trace 437937145ad903ad ]---
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: VT1708S Analog [VT1708S Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: rex 1800 F.... pulseaudio
 /dev/snd/pcmC0D0p: rex 1800 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xf7d00000 irq 44'
   Mixer name : 'VIA VT1708S'
   Components : 'HDA:11060397,10438415,00100000'
   Controls : 37
   Simple ctrls : 20
DistroRelease: Ubuntu 12.04
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
IwConfig:
 lo no wireless extensions.

 eth1 no wireless extensions.
MachineType: System manufacturer System Product Name
MarkForUpload: True
Package: linux (not installed)
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.2.0-40-generic root=UUID=2b00c2d7-8ba6-47d8-94ed-262816d4bb8f ro rootflags=subvol=@ crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-40.64-generic 3.2.40
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-40-generic N/A
 linux-backports-modules-3.2.0-40-generic N/A
 linux-firmware 1.79.1
RfKill:

StagingDrivers: mei
Tags: precise running-unity staging
Uname: Linux 3.2.0-40-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip fuse lpadmin plugdev sambashare sudo vboxusers
dmi.bios.date: 08/10/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0608
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: P8H61-M LX3 R2.0
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0608:bd08/10/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP8H61-MLX3R2.0:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1166620

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[conjurator (meworld2008)]

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[conjurator (meworld2008)]

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[conjurator (meworld2008)]

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[conjurator (meworld2008)]

Another oops

[ 1081.024942] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 1081.026187] IP: [<ffffffffa005a56f>] extent_buffer_uptodate+0xaf/0x110 [btrfs]
[ 1081.027433] PGD 1858b1067 PUD 1ccee5067 PMD 0
[ 1081.028671] Oops: 0000 [#1] SMP
[ 1081.029903] CPU 0
[ 1081.029910] Modules linked in: configfs kvm_intel kvm bnep rfcomm bluetooth parport_pc ppdev i915 drm_kms_helper drm i2c_algo_bit eeepc_wmi asus_wmi mac_hid sparse_keymap wmi snd_hda_codec_via snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device serio_raw snd mei(C) video soundcore snd_page_alloc lp parport usb_storage usbhid hid e1000e btrfs zlib_deflate libcrc32c
[ 1081.035085]
[ 1081.036369] Pid: 1648, comm: mlnet Tainted: G C 3.2.0-40-generic #64-Ubuntu System manufacturer System Product Name/P8H61-M LX3 R2.0
[ 1081.037681] RIP: 0010:[<ffffffffa005a56f>] [<ffffffffa005a56f>] extent_buffer_uptodate+0xaf/0x110 [btrfs]
[ 1081.038989] RSP: 0018:ffff8801cee976f8 EFLAGS: 00010212
[ 1081.040274] RAX: 0000000000000000 RBX: ffff8801927f8000 RCX: 0000000000000003
[ 1081.041569] RDX: 0000000000000000 RSI: 00000000000fbff0 RDI: 0000000000000003
[ 1081.042868] RBP: ffff8801cee97718 R08: ffff88020b33d3f8 R09: 0000000000000000
[ 1081.044165] R10: ffff880000000000 R11: 0000000000000001 R12: 0000000000000001
[ 1081.045469] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000007982000
[ 1081.046757] FS: 00007f34a88d9740(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
[ 1081.048047] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 1081.049315] CR2: 0000000000000000 CR3: 00000001b188c000 CR4: 00000000000406f0
[ 1081.050574] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1081.051813] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 1081.053027] Process mlnet (pid: 1648, threadinfo ffff8801cee96000, task ffff8801c5b05c00)
[ 1081.054231] Stack:
[ 1081.055409] ffff8801cee97748 ffff8801927f8000 ffff88020b12e1f0 0000000000000000
[ 1081.056603] ffff8801cee97748 ffffffffa00361be ffff8801cee97810 ffff88020e640800
[ 1081.057776] ffff88020feed090 0000000000001000 ffff8801cee977b8 ffffffffa001c0ef
[ 1081.058936] Call Trace:
[ 1081.060080] [<ffffffffa00361be>] btrfs_buffer_uptodate+0x3e/0x70 [btrfs]
[ 1081.061212] [<ffffffffa001c0ef>] read_block_for_search.isra.34+0x9f/0x200 [btrfs]
[ 1081.062352] [<ffffffffa001e129>] btrfs_search_slot+0x239/0x710 [btrfs]
[ 1081.063498] [<ffffffffa0023c2b>] lookup_inline_extent_backref+0x8b/0x460 [btrfs]
[ 1081.064650] [<ffffffffa0024060>] lookup_extent_backref+0x60/0xf0 [btrfs]
[ 1081.065809] [<ffffffffa0025a2f>] __btrfs_free_extent+0xbf/0x650 [btrfs]
[ 1081.066959] [<ffffffff8164a461>] ? __slab_free+0x1d2/0x2f3
[ 1081.068106] [<ffffffffa00260d4>] run_delayed_tree_ref+0x114/0x1a0 [btrfs]
[ 1081.069255] [<ffffffffa0029d3e>] run_one_delayed_ref+0xae/0xf0 [btrfs]
[ 1081.070385] [<ffffffffa0029e54>] run_clustered_refs+0xd4/0x240 [btrfs]
[ 1081.071498] [<ffffffffa002a08a>] btrfs_run_delayed_refs+0xca/0x220 [btrfs]
[ 1081.072596] [<ffffffff8165e49e>] ? _raw_spin_lock+0xe/0x20
[ 1081.073690] [<ffffffffa003...

[Ilya G. Ryabinkin (ileyka)]

I don't have oops, but I see

[ 66.331364] [drm:gen6_sanitize_pm] *ERROR* Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 1a0d0000, was 1a000000
[ 74.291376] [drm:gen6_sanitize_pm] *ERROR* Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 000d0000, was 1a0d0000

which I never saw before

[David Mohr (bugs-da)]

I get a hard lock up, last time even sysrq didn't work, usually when a screensaver runs.. Filesystem flush doesn't happen, so I don't see the oops and the last message in the logs is the power management discrepancy.

[Rilo (riloravestein)]

I have the same problem i guess. In the system log, i see:

May 17 19:17:24 Laptop kernel: [ 51.150411] [UFW BLOCK] IN=eth0 OUT= MAC= SRC=192.168.2.201 DST=239.0.0.250 LEN=49 TOS=0x00 PREC=0x00 TTL=1 ID=0 DF PROTO=UDP SPT=44036 DPT=32412 LEN=29
May 17 19:17:25 Laptop kernel: [ 52.428273] [drm:gen6_sanitize_pm] *ERROR* Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 000d0000, was 1a000000
May 17 19:17:31 Laptop kernel: [ 57.958425] [drm:gen6_sanitize_pm] *ERROR* Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 1a0d0000, was 000d0000
May 17 19:17:31 Laptop bluetoothd[980]: Endpoint unregistered: sender=:1.33 path=/MediaEndpoint/HFPAG
May 17 19:17:31 Laptop bluetoothd[980]: Endpoint unregistered: sender=:1.33 path=/MediaEndpoint/A2DPSource
May 17 19:17:31 Laptop bluetoothd[980]: Endpoint unregistered: sender=:1.33 path=/MediaEndpoint/A2DPSink
May 17 19:17:33 Laptop kernel: [ 59.940582] [UFW BLOCK] IN=eth0 OUT= MAC=d0:67:e5:45:f9:ff:c8:d7:19:9f:0c:96:08:00 SRC=194.54.81.86 DST=192.168.2.201 LEN=52 TOS=0x00 PREC=0x00 TTL=112 ID=11248 DF PROTO=TCP SPT=5938 DPT=59880 WINDOW=252 RES=0x00 ACK FIN URGP=0
May 17 19:17:33 Laptop kernel: [ 60.628009] [UFW BLOCK] IN=eth0 OUT= MAC=d0:67:e5:45:f9:ff:c8:d7:19:9f:0c:96:08:00 SRC=54.240.184.6 DST=192.168.2.201 LEN=52 TOS=0x08 PREC=0x40 TTL=55 ID=63068 DF PROTO=TCP SPT=80 DPT=39388 WINDOW=27 RES=0x00 ACK FIN URGP=0
May 17 19:17:34 Laptop kernel: [ 61.383870] [drm:gen6_sanitize_pm] *ERROR* Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 000d0000, was 1a0d0000
May 17 19:17:36 Laptop goa[2865]: goa-daemon version 3.4.0 starting [main.c:112, main()]
May 17 19:17:40 Laptop kernel: [ 67.400265] [UFW BLOCK] IN=eth0 OUT= MAC=d0:67:e5:45:f9:ff:c8:d7:19:9f:0c:96:08:00 SRC=54.240.184.6 DST=192.168.2.201 LEN=52 TOS=0x08 PREC=0x40 TTL=55 ID=63069 DF PROTO=TCP SPT=80 DPT=39388 WINDOW=27 RES=0x00 ACK FIN URGP=0
May 17 19:17:42 Laptop kernel: [ 69.536259] [UFW BLOCK] IN=eth0 OUT= MAC=d0:67:e5:45:f9:ff:c8:d7:19:9f:0c:96:08:00 SRC=194.54.81.86 DST=192.168.2.201 LEN=40 TOS=0x00 PREC=0x00 TTL=112 ID=9561 DF PROTO=TCP SPT=5938 DPT=59880 WINDOW=0 RES=0x00 ACK RST URGP=0

[Samuel Cersosimo (samuelcersosimo)]

Is the duplicate status confirmed? 'Cos I don't think it is a duplicate. I didn't find any lines at bug #1140716 about the [drm:gen6_sanitize_pm] ERROR that happens in here.

I have something similar in my Dell XPS 14z (Intel Sandybridge i7-2640M, nVidia GeForce GT 520M optimus, with bumblebee, laptop-mode-tools and jupiter, and using external monitor on HDMI port).
But, in my case, I'm not experiencing any crash, although, when the system is back from suspended mode, it shows the following (dmesg) where the error below appears 4 times at least:

[drm:gen6_sanitize_pm] *ERROR* Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 1a000000, was 12000000

The numbers at the end above vary between:
...expected 1a000000, was 12000000
...expected 1a0d0000, was 1a000000
...expected 000d0000, was 1a0d0000
...expected 000d0000, was 1a000000
...expected 1a000000, was 12060000

Here's a part of my dmesg result:

(...)

[ 18.552039] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input12
[ 20.080980] [drm:gen6_sanitize_pm] *ERROR* Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 1a000000, was 12000000
[ 20.130902] bbswitch: version 0.7
[ 20.130909] bbswitch: Found integrated VGA device 0000:00:02.0: \_SB_.PCI0.GFX0
[ 20.130915] bbswitch: Found discrete VGA device 0000:01:00.0: \_SB_.PCI0.PEG0.PEGP
[ 20.130997] bbswitch: detected an Optimus _DSM function
[ 20.131023] pci 0000:01:00.0: power state changed by ACPI to D0
[ 20.131026] pci 0000:01:00.0: power state changed by ACPI to D0
[ 20.131030] pci 0000:01:00.0: enabling device (0000 -> 0003)
[ 20.131037] pci 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 20.131040] bbswitch: Succesfully loaded. Discrete card 0000:01:00.0 is on
[ 20.132534] bbswitch: disabling discrete graphics
[ 20.132721] pci 0000:01:00.0: PCI INT A disabled
[ 20.149709] pci 0000:01:00.0: power state changed by ACPI to D3
[ 20.404299] init: plymouth-stop pre-start process (2682) terminated with status 1
[ 35.859303] [drm:gen6_sanitize_pm] *ERROR* Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 1a0d0000, was 1a000000
[ 94.868492] kbd_keycode: 63 callbacks suppressed
[ 94.868495] keyboard: can't emulate rawmode for keycode 240
[ 94.868502] keyboard: can't emulate rawmode for keycode 240
[ 94.981723] iwlwifi 0000:08:00.0: RF_KILL bit toggled to enable radio.
[ 95.425221] usb 1-1.5: new full-speed USB device number 6 using ehci_hcd
[ 95.549126] Bluetooth: Generic Bluetooth USB driver ver 0.6
[ 95.549276] usbcore: registered new interface driver btusb
[ 95.856777] iwlwifi 0000:08:00.0: L1 Enabled; Disabling L0S
[ 95.863381] iwlwifi 0000:08:00.0: Radio type=0x1-0x2-0x0
[ 96.155612] iwlwifi 0000:08:00.0: L1 Enabled; Disabling L0S
[ 96.162380] iwlwifi 0000:08:00.0: Radio type=0x1-0x2-0x0
[ 96.273730] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 97.780647] keyboard: can't emulate rawmode for keycode 240
[ 97.780672] keyboard: can't emulate rawmode for keycode 240
[ 97.822546] iwlwifi 0000:08:00.0: RF_KILL bit toggled to disable radio.
[ 97.822705] iwlwifi 0000:08:00.0: Request scan called when drive...

[Samuel Cersosimo (samuelcersosimo)]

Sorry for the size of my last comment.

I forgot to point that I'm on Kernel 3.2.0-56-generic (Ubuntu 12.04 LTS).

Attaching full dmesg return file.