Bug 102056

Summary: GPU HANG: ecode 9:0:0x0131c720, in chrome [1768], reason: Hang on render ring, action: reset
Product: DRI Reporter: Ruslan Sakevych <xlionell>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: CLOSED DUPLICATE QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: major    
Priority: medium CC: intel-gfx-bugs
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
GPU crash dump none

Description Ruslan Sakevych 2017-08-06 04:18:09 UTC
Created attachment 133264 [details]
GPU crash dump

I am getting this issue every time, I try to load my laptop after hibernation.
To hibernate I'm using systemd hibernate.
Comment 1 Chris Wilson 2017-08-06 12:39:39 UTC
commit bafb2f7d4755bf1571bd5e9a03b97f3fc4fe69ae
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Wed Sep 21 14:51:08 2016 +0100

    drm/i915/execlists: Reset RING registers upon resume
    
    There is a disparity in the context image saved to disk and our own
    bookkeeping - that is we presume the RING_HEAD and RING_TAIL match our
    stored ce->ring->tail value. However, as we emit WA_TAIL_DWORDS into the
    ring but may not tell the GPU about them, the GPU may be lagging behind
    our bookkeeping. Upon hibernation we do not save stolen pages, presuming
    that their contents are volatile. This means that although we start
    writing into the ring at tail, the GPU starts executing from its HEAD
    and there may be some garbage in between and so the GPU promptly hangs
    upon resume.
    
    Testcase: igt/gem_exec_suspend/basic-S4
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96526
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
    Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
    Link: http://patchwork.freedesktop.org/patch/msgid/20160921135108.29574-3-chris@chris-wilson.co.uk

*** This bug has been marked as a duplicate of bug 96526 ***

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.