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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [HSW Regression] Null pointer deference in intel_mmio_flip_work_func"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92335#c11">Comment # 11</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [HSW Regression] Null pointer deference in intel_mmio_flip_work_func"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92335">bug 92335</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>Ok, run with
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 71d7298648e0..850b11351c03 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -11400,7 +11400,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
* the hardware completed the operation behind our backs.
*/
if (__intel_pageflip_stall_check(dev, crtc)) {
- DRM_DEBUG_DRIVER("flip queue: previous flip completed,
continuing\n");
+ DRM_ERROR("flip queue: previous flip completed,
continuing\n");
page_flip_completed(intel_crtc);
} else {
DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
and lets see if that crops up just before the fatal oops.</pre>
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