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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - GPU HANG: ecode 4:0:0xfdfffffb, in Xorg, reason: Ring hung, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90297#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - GPU HANG: ecode 4:0:0xfdfffffb, in Xorg, reason: Ring hung, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90297">bug 90297</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>Missing cacheline in the batchbuffer, GPU dies on the MI_FLUSH following the
corrupt command stream.
Can you please double check that the bug is still reproducible with
drm-intel-nightly (kernel) and xf86-video-intel.git? Then apply
diff --git a/src/sna/kgem.c b/src/sna/kgem.c
index d190255..de9977c 100644
--- a/src/sna/kgem.c
+++ b/src/sna/kgem.c
@@ -83,7 +83,7 @@ search_snoop_cache(struct kgem *kgem, unsigned int num_pages,
#define DBG_NO_FAST_RELOC 0
#define DBG_NO_HANDLE_LUT 0
#define DBG_NO_WT 0
-#define DBG_NO_WC_MMAP 0
+#define DBG_NO_WC_MMAP 1
#define DBG_NO_BLT_Y 0
#define DBG_NO_SCANOUT_Y 0
#define DBG_NO_DETILING 0
to xf86-video-intel.
This will hopefully narrow down the issue to the recent mmap(wc).</pre>
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