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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [945 regression] 4.0-rc1 kernel GPU hang: ecode 3:0:0x02faffcf (i915) stuck on render ring ecode 3:0:0x02faffcf"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89334#c24">Comment # 24</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [945 regression] 4.0-rc1 kernel GPU hang: ecode 3:0:0x02faffcf (i915) stuck on render ring ecode 3:0:0x02faffcf"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89334">bug 89334</a>
from <span class="vcard"><a class="email" href="mailto:jimmcdevitt60@gmail.com" title="Jim <jimmcdevitt60@gmail.com>"> <span class="fn">Jim</span></a>
</span></b>
<pre>(In reply to Chris Wilson from <a href="show_bug.cgi?id=89334#c23">comment #23</a>)
<span class="quote">> One final ddx change just to check a potential root cause of the problem:
>
> diff --git a/src/sna/kgem.c b/src/sna/kgem.c
> index a5571aa..adf52d6 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, unsigned flags);
> #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_DUMP 0
> #define DBG_NO_MALLOC_CACHE 0</span >
OK have more for you in the AM. Many thanks for your time.</pre>
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