You are right. This is NOT the same bug but stunningly happens with this kernel while the "share + more actions" on firefox worked fine with the ubuntu kernel.
Here is the relevant entry in the syslog: May 11 16:40:30 Murat-Laptop dbus-daemon[1834]: Activating service name='org.gnome.GConf' May 11 16:40:30 Murat-Laptop dbus-daemon[1834]: Successfully activated service 'org.gnome.GConf' May 11 16:40:32 Murat-Laptop unity-panel-ser[2370]: Already have a menu for window ID 65011728 with path /com/canonical/menu/3E00010 from :1.106, unregistering that one May 11 16:40:32 Murat-Laptop unity-panel-ser[2370]: Already have a menu for window ID 65011728 with path /com/canonical/menu/3E00010 from :1.106, unregistering that one May 11 16:40:33 Murat-Laptop compiz[2359]: 1494535233840#011FirefoxAccounts#011ERROR#011Background refresh of profile failed, bumping _cachedAt: {"name":"FxAccountsProfileClientError","code":3 04,"errno":997,"error":"PARSE_ERROR","message":null} May 11 16:40:34 Murat-Laptop systemd[1]: Starting Stop ureadahead data collection... May 11 16:40:34 Murat-Laptop systemd[1]: Started Stop ureadahead data collection. May 11 16:40:56 Murat-Laptop compiz[2359]: Vector smash protection is enabled. May 11 16:48:54 Murat-Laptop unity-panel-ser[2370]: Already have a menu for window ID 67109067 with path /com/canonical/menu/40000CB from :1.113, unregistering that one There is 8 minutes of silence after the crash between 16:40 and 16:48, where I instinctively pressed alt+sysrqE to failure of reboot! I CAN reproduce this particular error, which clearly is NOT the bug we are dealing with on this thread, following the same steps. Actually you can try this by clicking on "Share this page" icon on firefox and then the + icon to install more social actions. You CAN kill the stalled Firefox processs from a terminal. -- 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/1674838 Title: kernel BUG at /build/linux- 7LGLH_/linux-4.10.0/include/linux/swapops.h:129 Status in linux package in Ubuntu: In Progress Status in linux-hwe-edge package in Ubuntu: In Progress Status in linux source package in Zesty: In Progress Status in linux-hwe-edge source package in Zesty: In Progress Bug description: Randomly, khugepaged process will take 100% CPU, and I can only restart the computer to recover it. Relevant dmesg attached (dmesg_crash.txt). ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: linux-image-4.10.0-14-generic 4.10.0-14.16 ProcVersionSignature: Ubuntu 4.10.0-14.16-generic 4.10.3 Uname: Linux 4.10.0-14-generic x86_64 ApportVersion: 2.20.4-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mathieu 2221 F.... pulseaudio /dev/snd/pcmC1D0p: mathieu 2221 F...m pulseaudio /dev/snd/controlC1: mathieu 2221 F.... pulseaudio CurrentDesktop: Unity:Unity7 Date: Tue Mar 21 23:03:23 2017 HibernationDevice: RESUME=UUID=67e78e4c-94ee-447c-ae60-4387dae296dd InstallationDate: Installed on 2016-01-31 (415 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160131) MachineType: LENOVO 20344 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-14-generic root=UUID=b982929e-11d0-4984-885c-6c9daba24836 ro noprompt quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.10.0-14-generic N/A linux-backports-modules-4.10.0-14-generic N/A linux-firmware 1.164 SourcePackage: linux UpgradeStatus: Upgraded to zesty on 2017-03-02 (19 days ago) dmi.bios.date: 10/16/2014 dmi.bios.vendor: LENOVO dmi.bios.version: 96CN29WW(V1.15) dmi.board.asset.tag: 31900058WIN dmi.board.name: INVALID dmi.board.vendor: LENOVO dmi.board.version: 31900058WIN dmi.chassis.asset.tag: 31900058WIN dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo Yoga 2 13 dmi.modalias: dmi:bvnLENOVO:bvr96CN29WW(V1.15):bd10/16/2014:svnLENOVO:pn20344:pvrLenovoYoga213:rvnLENOVO:rnINVALID:rvr31900058WIN:cvnLENOVO:ct10:cvrLenovoYoga213: dmi.product.name: 20344 dmi.product.version: Lenovo Yoga 2 13 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1674838/+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