[Bug 101711] [chv] Heavy web pages makes rendering stuck for few minutes, or until web browser is terminated

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101711

            Bug ID: 101711
           Summary: [chv] Heavy web pages makes rendering stuck for few
                    minutes, or until web browser is terminated
           Product: Mesa
           Version: 17.1
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: russianneuromancer at ya.ru
        QA Contact: intel-3d-bugs at lists.freedesktop.org

Created attachment 132484
  --> https://bugs.freedesktop.org/attachment.cgi?id=132484&action=edit
dmesg of Linux 2017-07-06 drm-tip with drm.debug=0x1e log_buf_len=1M

Hello!

Rendering of heavy web pages like pages with many gif images
(https://www.theverge.com/tech) maps, just heavy web-sites, frequently lead to
state that looks like GPU hang - while tablet is accessible via ssh, rendering
on display just stop for a few minutes (or sometimes until web browser is
terminated) however /sys/class/drm/card0/error return "No error state
collected". Killing web browser process could bring system to life faster,
however this is possible only remotely which is not an option for tablet (hence
critical severity).

First example:
Enable GPU rendering in Chrome/Opera/Chromium settings. (Also reproducible with
disabled GPU rendering.)
Visit https://www.theverge.com/walt-mossberg-verge
Scroll down to "MOSSBERG: THE DISAPPEARING COMPUTER" animation, wait few
seconds.

Second example:
Disable GPU rendering in Chrome/Opera/Chromium settings. (Also reproducible
with enabled GPU rendering, but less frequently, so keep it disabled for this
particular page.)
Visit https://www.theverge.com/tech
Slowly scroll this page up and down, few seconds later rendering will stuck.

Hardware:
Dell Vanue 8 Pro 5855 with x5-Z8500 CPU.

Software:
Ubuntu Gnome 17.04 x86_64
Linux 4.12.0rc7 and Intel drm-tip kernel (cod/tip/drm-tip/2017-07-06,
cefc82aab8bb8ec201e922cf23d227c47845094c)
Mesa 17.1.2, libdrm 2.4.80
Issue is reproducible with both of modesetting DDX and intel DDX.
Display is rotated in System Settings.
I reproduced this issue with Opera web-browser (45, 46, 47).

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