[Bug 91221] New: intel_check_page_flip warning in dmesg

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=91221

            Bug ID: 91221
           Summary: intel_check_page_flip warning in dmesg
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.18.2
          Hardware: Intel
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: da_audiophile at yahoo.com
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No

Created attachment 163301
  --> https://bugzilla.kernel.org/attachment.cgi?id=163301&action=edit
dmesg showing intel_check_page_flip

Intel G45 based system has experienced a "WARNING: CPU: 1 PID: 0 at
drivers/gpu/drm/i915/intel_display.c:9916 intel_check_page_flip+0xc2/0xd0
[i915]()" upon updating to the 3.18 series of kernels.

Complete dmesg output is attached.  I am currently running the machine with the
drm.debug=14 kernel parameter and will update the attachment with the output
when the same error is thrown again.  Until this, I hope the attached will help
provide some clues as to the nature of the crash.

The kernel version is 3.18.2 from Arch Linux which does incorporate D. Vetter's
patch[1] found from this[2] bug report.

Googling on the error found this bug report[3] against Fedora, so I am not the
only one experiencing it.

1.
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d472fcc8379c062bd56a3876fc6ef22258f14a91
2. https://bugs.freedesktop.org/show_bug.cgi?id=76554#c116
3, https://bugzilla.redhat.com/show_bug.cgi?id=1174009

-- 
You are receiving this mail because:
You are on the CC list for the bug.
You are the assignee for the bug.