[Bug 69917] [Baytrail-M] testdisplay with two pipes cause div-by-zero

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=69917

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[Baytrail-M] testdisplay    |[Baytrail-M] testdisplay
                   |with two pipes cause        |with two pipes cause
                   |"*ERROR* DPLL 0 failed to   |div-by-zero
                   |lock" and "Call trace"      |

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
The problem stems from a failed DPIO causing a divide-by-zero whilst holding
the mutex. The machine lockup will be fixed by Jesse's WARN(div-by-zero) but
the system is still snafu.

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