[Bug 105949] System stall on Supermicro SKL boards on drm-tip

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105949

--- Comment #5 from Imre Deak <imre.deak at intel.com> ---
Created attachment 138761
  --> https://bugs.freedesktop.org/attachment.cgi?id=138761&action=edit
Revert WA 1183

Looks like the reference PLL for CDCLK, DPLL0 doesn't lock, but no other
indication as to the root cause for that.

Could you clarify your report that the board can't be booted? Are there only
two scenarios:
1. The board boots with the error messages
2. The board boots without the error messages

Or is there another scenario which you refer to as "can't be booted"?

In the case where booting without the error messages, is there some other issue
you see (system stall reported on bug 105949)?

Did you try to bisect the problem causing the above error messages (noting that
you need several boots for each bisect step)?

Specifically there's been a recent related WA, could you try if the problem
persists reverting that on top of drm-tip? I attached the revert patch since it
won't revert cleanly.

Thanks.

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