Chromium freezes

[DimanNe]

After I updated to Ubuntu 18.04 I noticed that chromium interactions (scroll for example) and mouse pointer itself started to freeze for hundreds of milliseconds (0.1s - 0.2s).

So, I was constantly scrolling (in order to reproduce the bug) while running perf top, and it pointed to this function:

sudo perf top -t 1892 -d 5 --call-graph fp

  Children Self Shared Object Symbol

- 80,55% 0,00% libc-2.27.so [.] __GI___ioctl
   - 76,84% __GI___ioctl
        71,67% _nv029804rm
      - 1,12% _nv020749rm
         - 1,03% os_release_spinlock
              0,97% _raw_spin_unlock_irqrestore

- 71,69% 71,67% [kernel] [k] _nv029804rm
     71,58% 0x180000012a
        __GI___ioctl
        _nv029804rm

- 16,75% 0,00% [unknown] [k] 0x000000180000012a
     0x180000012a
   - __GI___ioctl
        15,25% _nv029804rm

- 8,67% 0,25% libc-2.27.so [.] syscall
   - 5,45% syscall
        1,89% syscall_return_via_sysret
      - 1,05% entry_SYSCALL_64_after_hwframe
         - 1,22% do_syscall_64

top command also showed that this process was eating one core.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: chromium-browser 65.0.3325.181-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: KDE
Date: Tue May 1 10:38:19 2018
Desktop-Session:
 'plasma'
 '/etc/xdg/xdg-plasma:/etc/xdg:/usr/share/kubuntu-default-settings/kf5-settings'
 '/usr/share/plasma:/usr/local/share:/usr/share:/var/lib/snapd/desktop'
DetectedPlugins:

Env:
 'None'
 'None'
InstallationDate: Installed on 2017-12-16 (136 days ago)
InstallationMedia: Kubuntu 17.10 "Artful Aardvark" - Release amd64 (20171017.1)
InstalledPlugins:

Load-Avg-1min: 1.64
Load-Processes-Running-Percent: 0.1%
MachineType: System manufacturer System Product Name
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-20-generic root=UUID=e3723f86-9a4d-4166-960b-88262212fcc6 ro quiet splash vt.handoff=1
SourcePackage: chromium-browser
UpgradeStatus: Upgraded to bionic on 2018-04-02 (28 days ago)
dmi.bios.date: 08/31/2017
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0408
dmi.board.asset.tag: Default string
dmi.board.name: PRIME Z370-A
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0408:bd08/31/2017:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEZ370-A:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
modified.conffile..etc.default.chromium-browser: [deleted]

[DimanNe (dimanne)]

I have just noticed that dmesg has very strange info:
WARNING: kernel stack frame pointer at 00000000b2107faf in chromium-browse:1892 has bad value 00000000648ab7fa

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Olivier Tilloy (osomon)]

Could you please install chrome (https://www.google.com/chrome/) and see if the problem happens there too? Thanks!

[DimanNe (dimanne)]

I have tried doing it, the problem have gone, it works fine. Newer Chromium (66.0.3359.139) from the Ubuntu repos also works perfectly. I suppose you can close the bug-report.

[Olivier Tilloy (osomon)]

Thanks for the feedback. It looks like this was an upstream bug that was fixed with the release of 66 to the stable channel. Closing now.