The reverse bisect from 4.3 to 4.4-rc1 shows the bug was "fixed" in d55fc37, "Pull i2c updates from Wolfram Sang". That seems unrelated to the bad commit identified in 4.2.6 (0691783, "NFSv4.1: Fix a protocol issue with CLOSE stateids"), so either I botched the bisect or there might be something more complex going on.
For the record, here's the bisect log: git bisect start # good: [6a13feb9c82803e2b815eca72fa7a9f5561d7861] Linux 4.3 git bisect good 6a13feb9c82803e2b815eca72fa7a9f5561d7861 # bad: [8005c49d9aea74d382f474ce11afbbc7d7130bec] Linux 4.4-rc1 git bisect bad 8005c49d9aea74d382f474ce11afbbc7d7130bec # good: [118c216e16c5ccb028cd03a0dcd56d17a07ff8d7] Merge tag 'staging-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging git bisect good 118c216e16c5ccb028cd03a0dcd56d17a07ff8d7 # good: [e6604ecb70d4b1dbc0372c6518b51c25c4b135a1] Merge tag 'nfs-for-4.4-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs git bisect good e6604ecb70d4b1dbc0372c6518b51c25c4b135a1 # bad: [b44a3d2a85c64208a57362a1728efb58a6556cd6] Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc git bisect bad b44a3d2a85c64208a57362a1728efb58a6556cd6 # good: [c0f3f90cf454dd845dcc443afa4f0e312a8eaee0] Merge branch 'vmwgfx-next' of git://people.freedesktop.org/~thomash/linux into drm-next git bisect good c0f3f90cf454dd845dcc443afa4f0e312a8eaee0 # good: [42d4ebb42a17754d2e8344dc1aa486119671d0eb] Merge git://www.linux-watchdog.org/linux-watchdog git bisect good 42d4ebb42a17754d2e8344dc1aa486119671d0eb # bad: [a5e1d715a8d0696961d99d31d869aa522f1cad5a] Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc git bisect bad a5e1d715a8d0696961d99d31d869aa522f1cad5a # good: [d3dc3df6330e4b4d799bef4aac6f934b5e726b1c] Merge tag 'omap-for-v4.4/soc-clean-up' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup git bisect good d3dc3df6330e4b4d799bef4aac6f934b5e726b1c # good: [c39dc960e9c5196022cbc46507d4782b6fc314f6] mfd: intel_quark_i2c_gpio: load gpio driver first git bisect good c39dc960e9c5196022cbc46507d4782b6fc314f6 # bad: [d55fc37856244c929965c190c8e9dcb49e2c07aa] Merge branch 'i2c/for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux git bisect bad d55fc37856244c929965c190c8e9dcb49e2c07aa # good: [174f2366b076db3876c3b7f595edf2aa739f9d43] i2c: au1550: Convert to devm_kzalloc and devm_ioremap_resource git bisect good 174f2366b076db3876c3b7f595edf2aa739f9d43 # good: [2b630df721ee4c286d286ab5d5d958d34c86f067] i2c: i801: Document Intel DNV and Broxton git bisect good 2b630df721ee4c286d286ab5d5d958d34c86f067 # good: [14cbc1d0e29667b0c01c9202fcf8ac31893f7daa] MAINTAINERS: i2c: drop i2c-pnx maintainer git bisect good 14cbc1d0e29667b0c01c9202fcf8ac31893f7daa # good: [75ecc64ef5a1f310fc80f732ad8cfb7e1bdc59d5] i2c: rcar: Revert the latest refactoring series git bisect good 75ecc64ef5a1f310fc80f732ad8cfb7e1bdc59d5 # first bad commit: [d55fc37856244c929965c190c8e9dcb49e2c07aa] Merge branch 'i2c/for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux -- 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/1529266 Title: [HP Spectre x360 - 13-4005dx] suspend/resume failure Status in linux package in Ubuntu: Triaged Bug description: Upgrading from 15.04 to 15.10 my Spectre x360 is no longer able to suspend (either shutting the lid or sudo pm-suspend in a terminal). This is (AFAIK) the same problem as #1502531. Following the instructions in #1502531 I updated to mainline kernel v4.4-rc6-wily and had no problems suspending the machine. At the request of Chris Penalver I did the following: 1. rebooted to the Ubuntu 4.2.0-22-generic kernel (since I've been running 4.4) 2. ran sudo pm-suspend, system locked up (frozen mouse, caps lock key didn't light up when pressed) 3. held the power button to shut laptop off 4. booted into the 4.2.0-22-generic kernel again 5. ran ubuntu-bug linux to generate this bug report ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-22-generic 4.2.0-22.27 ProcVersionSignature: Ubuntu 4.2.0-22.27-generic 4.2.6 Uname: Linux 4.2.0-22-generic x86_64 ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: scbash 1551 F.... pulseaudio CurrentDesktop: GNOME-Classic:GNOME Date: Fri Dec 25 11:29:40 2015 HibernationDevice: RESUME=UUID=ab9ec8da-59c5-439b-b82d-c2f9eed12b3c InstallationDate: Installed on 2015-05-22 (217 days ago) InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: Hewlett-Packard HP Spectre x360 Convertible 13 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-22-generic.efi.signed root=UUID=a70d7c75-082c-4180-9512-a509e815ff74 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.2.0-22-generic N/A linux-backports-modules-4.2.0-22-generic N/A linux-firmware 1.149.3 SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: Upgraded to wily on 2015-11-12 (43 days ago) dmi.bios.date: 10/20/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F.2C dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 802D dmi.board.vendor: Hewlett-Packard dmi.board.version: 58.41 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF.2C:bd10/20/2015:svnHewlett-Packard:pnHPSpectrex360Convertible13:pvr:rvnHewlett-Packard:rn802D:rvr58.41:cvnHewlett-Packard:ct10:cvrChassisVersion: dmi.product.name: HP Spectre x360 Convertible 13 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1529266/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp