frequent lockups with wily kernels

[Steve Beattie]

Getting frequent lockups with wily's kernel (roughly every couple of days or so). Usually the kern.log is quiet on why it happened, but an oops showed up from one recently.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-16-generic 4.2.0-16.19
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
ApportVersion: 2.19.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: steve 1675 F.... pulseaudio
 /dev/snd/controlC0: steve 1675 F.... pulseaudio
CurrentDesktop: i3
Date: Wed Oct 28 21:36:07 2015
HibernationDevice: RESUME=UUID=2403a6d5-7f89-4f74-8bed-6ec44824ada2
InstallationDate: Installed on 2015-04-14 (197 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150326)
Lsusb:
 Bus 003 Device 002: ID 8087:8001 Intel Corp.
 Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 002: ID 8087:0a2a Intel Corp.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 20BXCTO1WW
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic.efi.signed root=UUID=80281fba-f034-44b7-a28e-2d44559a6e37 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.2.0-16-generic N/A
 linux-backports-modules-4.2.0-16-generic N/A
 linux-firmware 1.149
SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: Upgraded to wily on 2015-09-25 (33 days ago)
dmi.bios.date: 03/02/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: JBET46WW (1.11 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20BXCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50512 STD
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrJBET46WW(1.11):bd03/02/2015:svnLENOVO:pn20BXCTO1WW:pvrThinkPadT450s:rvnLENOVO:rn20BXCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20BXCTO1WW
dmi.product.version: ThinkPad T450s
dmi.sys.vendor: LENOVO

[Steve Beattie (sbeattie)]

Not sure why the kernel apport hook doesn't pick up anything from /var/log/kern.log, but here's the oopses:

kernel: [ 23.256838] ------------[ cut here ]------------
kernel: [ 23.256846] WARNING: CPU: 1 PID: 2731 at /build/linux-AxjFAn/linux-4.2.0/include/linux/kref.h:47 aa_label_merge+0x86f/0x8c0()
kernel: [ 23.256847] Modules linked in: overlay pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) binfmt_misc rfcomm bnep nls_iso8859_1 btusb btrtl btbcm btintel bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul arc4 ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd joydev snd_hda_codec_hdmi snd_hda_codec_realtek input_leds snd_hda_codec_generic serio_raw snd_seq_midi snd_seq_midi_event snd_rawmidi snd_hda_intel iwlmvm snd_hda_codec snd_hda_core mac80211 snd_hwdep snd_seq snd_pcm snd_seq_device iwlwifi thinkpad_acpi cfg80211 nvram mei_me mei rtsx_pci_ms lpc_ich memstick snd_timer shpchp snd soundcore mac_hid parport_pc ppdev sunrpc lp parport autofs4 btrfs xor raid6_pq rtsx_pci_sdmmc i915 psmouse ahci e1000e libahci i2c_algo_bit drm_kms_helper ptp rtsx_pci pps_core drm wmi video
kernel: [ 23.256905] CPU: 1 PID: 2731 Comm: pickup Tainted: G W OE 4.2.0-16-generic #19-Ubuntu
kernel: [ 23.256907] Hardware name: LENOVO 20BXCTO1WW/20BXCTO1WW, BIOS JBET46WW (1.11 ) 03/02/2015
kernel: [ 23.256908] 0000000000000000 00000000064deb72 ffff88034da43a90 ffffffff817e8c09
kernel: [ 23.256912] 0000000000000000 0000000000000000 ffff88034da43ad0 ffffffff8107b3c6
kernel: [ 23.256914] ffff88034da43ae0 ffff88034a79d830 ffff880348de0830 ffff88034c7dad00
kernel: [ 23.256917] Call Trace:
kernel: [ 23.256922] [<ffffffff817e8c09>] dump_stack+0x45/0x57
kernel: [ 23.256926] [<ffffffff8107b3c6>] warn_slowpath_common+0x86/0xc0
kernel: [ 23.256929] [<ffffffff8107b4fa>] warn_slowpath_null+0x1a/0x20
kernel: [ 23.256931] [<ffffffff8136e06f>] aa_label_merge+0x86f/0x8c0
kernel: [ 23.256935] [<ffffffff8136a8a2>] update_file_cxt+0x32/0x80
kernel: [ 23.256937] [<ffffffff8136b706>] aa_file_perm+0x366/0x410
kernel: [ 23.256940] [<ffffffff8136b7b0>] ? aa_file_perm+0x410/0x410
kernel: [ 23.256942] [<ffffffff8136b811>] match_file+0x61/0x70
kernel: [ 23.256945] [<ffffffff8121a368>] iterate_fd+0x58/0x90
kernel: [ 23.256947] [<ffffffff8136b8f3>] aa_inherit_files+0xd3/0x1e0
kernel: [ 23.256950] [<ffffffff8136796b>] apparmor_bprm_committing_creds+0x6b/0x90
kernel: [ 23.256954] [<ffffffff813261d5>] security_bprm_committing_creds+0x25/0x40
kernel: [ 23.256957] [<ffffffff812030d6>] install_exec_creds+0x16/0x80
kernel: [ 23.256961] [<ffffffff812555ce>] load_elf_binary+0xb4e/0x1140
kernel: [ 23.256964] [<ffffffff812034d6>] search_binary_handler+0x96/0x1c0
kernel: [ 23.256968] [<ffffffff81204c55>] do_execveat_common.isra.33+0x545/0x710
kernel: [ 23.256971] [<ffffffff81022a9b>] ? do_audit_syscall_entry+0x4b/0x70
kernel: [ 23.256974] [<ffffffff812050ca>] SyS_execve+0x3a/0x50
kernel: [ 23.256977] [<ffffffff817efd25>] stub_execve+0x5/0x5
kernel: [ 23.256980] [<ffffffff817ef9f2>] ? entry_SYSCALL_64...

[Steve Beattie (sbeattie)]

Reattached kernel oops as a raw file

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.3 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc7-unstable/

[John Johansen (jjohansen)]

This looks like a duplicate of Bug #1448912 and I am going to mark it as a duplicate.

Please try the test kernels on that bug, and if this is not a duplicate we can split this back off