I tried the Ubuntu mainline builds. The bug happens on mainline 4.10.12 (and 13, and 15, and 17..), but not on 4.10.11. This tallies well with the Ubuntu versions, where 11 is before -22, and 12 is after.
The failure on 4.10.12-mainline is attached. Linux version 4.10.12-041012-generic (kernel@gloin) (gcc version 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12) ) #201704210512 SMP ** Attachment added: "12-failed.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1696665/+attachment/4892425/+files/12-failed.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1696665 Title: Boot wedges on 4.10.0-22 but not on -21 Status in linux package in Ubuntu: Confirmed Bug description: After a kernel update, the machine wedges during late boot. Symptoms: * lightdm never gets a chance to start because things like gpu-manager are wedged, and must start before it * gpu-manager uses 100% cpu * sudo / ip / anything that uses netlink hangs forever and can't be ^C'd * can't reboot; processes like network-manager are wedged and unkillable I'm running a relatively standard Zesty install, with a couple of extra packages (e.g. official Docker). Laptop is a generic unbranded desktop-replacement from https://pcspecialist.co.uk/. My guess at the problem is these blocked kernel threads: [ 39.105233] sysrq: SysRq : Show Blocked State [ 39.105248] task PC stack pid father [ 39.105265] kworker/0:1 D 0 67 2 0x00000000 [ 39.105270] Workqueue: kec_query acpi_ec_event_processor [ 39.105271] Call Trace: [ 39.105273] __schedule+0x233/0x6f0 [ 39.105274] schedule+0x36/0x80 [ 39.105275] schedule_timeout+0x22a/0x3f0 [ 39.105276] ? del_timer_sync+0x48/0x50 [ 39.105277] ? schedule_timeout+0x1e7/0x3f0 [ 39.105277] __down_timeout+0x7d/0xd0 [ 39.105278] down_timeout+0x4c/0x60 [ 39.105280] acpi_os_wait_semaphore+0x56/0x70 [ 39.105281] acpi_ut_acquire_mutex+0x46/0x80 [ 39.105282] acpi_ns_get_node+0x28/0x58 [ 39.105283] acpi_ns_evaluate+0x52/0x252 [ 39.105284] acpi_evaluate_object+0x148/0x258 [ 39.105285] acpi_ec_event_processor+0x6e/0xa0 [ 39.105286] process_one_work+0x1fc/0x4b0 [ 39.105287] worker_thread+0x4b/0x500 [ 39.105288] kthread+0x109/0x140 [ 39.105289] ? process_one_work+0x4b0/0x4b0 [ 39.105290] ? kthread_create_on_node+0x60/0x60 [ 39.105291] ret_from_fork+0x2c/0x40 Googlin' this stack trace gets basically nothing. I have had no other problems (no weird hangs, ...) with this machine on previous kernels. The binary nVidia driver does cause issues, but I don't use it. ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: linux-image-4.10.0-22-generic 4.10.0-22.24 ProcVersionSignature: Ubuntu 4.10.0-21.23-generic 4.10.11 Uname: Linux 4.10.0-21-generic x86_64 ApportVersion: 2.20.4-0ubuntu4.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: faux 2840 F.... pulseaudio Date: Thu Jun 8 08:16:01 2017 HibernationDevice: RESUME=UUID=90cfcad3-decf-4ee3-acee-22da8e067a01 InstallationDate: Installed on 2017-02-24 (103 days ago) InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2) MachineType: Notebook N85_N87,HJ,HJ1,HK1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.10.0-21-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro RelatedPackageVersions: linux-restricted-modules-4.10.0-21-generic N/A linux-backports-modules-4.10.0-21-generic N/A linux-firmware 1.164.1 SourcePackage: linux UpgradeStatus: Upgraded to zesty on 2017-04-26 (42 days ago) dmi.bios.date: 01/23/2017 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.05.07 dmi.board.asset.tag: Tag 12345 dmi.board.name: N85_N87,HJ,HJ1,HK1 dmi.board.vendor: Notebook dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Notebook dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.05.07:bd01/23/2017:svnNotebook:pnN85_N87,HJ,HJ1,HK1:pvrNotApplicable:rvnNotebook:rnN85_N87,HJ,HJ1,HK1:rvrNotApplicable:cvnNotebook:ct10:cvrN/A: dmi.product.name: N85_N87,HJ,HJ1,HK1 dmi.product.version: Not Applicable dmi.sys.vendor: Notebook To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1696665/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
