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    <body><span class="vcard"><a class="email" href="mailto:jinxianx.guo@intel.com" title="Guo Jinxian <jinxianx.guo@intel.com>"> <span class="fn">Guo Jinxian</span></a>
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              <a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED - [BYT]igt/gem_exec_big fails"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=86425">bug 86425</a>
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           <td>NEEDINFO
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            <b><a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED - [BYT]igt/gem_exec_big fails"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=86425#c7">Comment # 7</a>
              on <a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED - [BYT]igt/gem_exec_big fails"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=86425">bug 86425</a>
              from <span class="vcard"><a class="email" href="mailto:jinxianx.guo@intel.com" title="Guo Jinxian <jinxianx.guo@intel.com>"> <span class="fn">Guo Jinxian</span></a>
</span></b>
        <pre>(In reply to Daniel Vetter from <a href="show_bug.cgi?id=86425#c5">comment #5</a>)
<span class="quote">> Please try to revert

> commit e9d784d535e43777f9ff44d7e582946f4776c000
> Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
> Date:   Thu Nov 6 08:40:35 2014 +0000

>     drm/i915: Fix obj->map_and_fenceable across tiling changes

> on -fixes. We might have applied the thing to the wrong tree ...

> This assumes my guess in comments 3/4 is right and this is only an issue on
> -fixes.</span >
I reverted commit 0485c9dc24ec0939b42ca5104c0373297506b555 on latest
-fixes(0485c9dc24ec0939b42ca5104c0373297506b555), the failure still able to
reproduce.

[root@x-byt05 tests]# ./gem_exec_big
IGT-Version: 1.8-gaa63fc7 (x86_64) (Linux: 3.18.0-rc5_kcloud_3cf816_20141119+
x86_64)
Test assertion failure function exec, file gem_exec_big.c:97:
Failed assertion: tmp == gem_reloc[0].presumed_offset
error: 0 != 3592192</pre>
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