[Bug 106974] [CI] igt@* - warn - Suspicious CRC: it looks like the CRC read back was from a register in a powered down well

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106974

Ville Syrjala <ville.syrjala at linux.intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      i915 features|display/Other               |display/PSR

--- Comment #1 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
I was just looking at crcs on icl and spotted the following:
0x00098785 0xd2d6ad2b 0x00000000 0x00000000 0x00000000 0x00000000
0x00098786 0xd2d6ad2b 0x00000000 0x00000000 0x00000000 0x00000000
0x0009879b 0xffffffff 0x00000000 0x00000000 0x00000000 0x00000000
0x0009879c 0xd2d6ad2b 0x00000000 0x00000000 0x00000000 0x00000000
0x0009879d 0x82618fd1 0x00000000 0x00000000 0x00000000 0x00000000

So the frame counter jumps by quite a lot there and we get a bogus crc at the
same time. As I immediately suspected the culprit is PSR. We should probably
disable PSR while CRC capturing is enabled.

-- 
You are receiving this mail because:
You are the assignee for the bug.
You are the QA Contact for the bug.
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20181213/31c2cac8/attachment.html>