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SubjectRe: [regression drm/noveau] suspend to ram -> BOOM: exception RIP: drm_calc_vbltimestamp_from_scanoutpos+335
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On Tue, 2017-07-11 at 14:22 -0400, Ilia Mirkin wrote:
>
> OK, thanks. So in other words, a fairly standard desktop with a PCIe
> board plugged in. No funny business. (Laptops can create a ton of
> additional weirdness, which I assumed you had since you were talking
> about STR.)

Yup, garden variety deskside box.

> My best guess is that gf119_head_vblank_put either has a bogus head id
> (should be in the 0..3 range) which causes it to do an out-of-bounds
> read on MMIO space, or that the MMIO mapping has already been removed
> by the time nouveau_display_suspend runs. Adding Ben Skeggs for
> additional insight.
>
> Some display stuff did change for 4.13 for GM20x+ boards. If it's not
> too much trouble, a bisect would be pretty useful.

Vacation -> back to work happens in the very early AM, so bisection
will have to wait a bit.

-Mike

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