[Bug 79053] [BDW userptr regression] Rendercheck dcoords causes X crash

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79053

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |NEEDINFO
           Severity|major                       |blocker
           Priority|highest                     |low

--- Comment #35 from Chris Wilson <chris at chris-wilson.co.uk> ---
Meh, I can do

diff --git a/src/sna/kgem.c b/src/sna/kgem.c
index dfaf878..6a9543d 100644
--- a/src/sna/kgem.c
+++ b/src/sna/kgem.c
@@ -1063,6 +1063,9 @@ static bool test_has_userptr(struct kgem *kgem)
        if (kgem->gen == 040)
                return false;

+       if (kgem->gem >= 0100)
+               return false; /* FIXME */
+
        if (posix_memalign(&ptr, PAGE_SIZE, PAGE_SIZE))
                return false;

to hide the issue until fixed. In fact, done. Please let me know if they are
another issues that show up on bdw that may help explain this.

commit 3f4da671b0a570de8734cc668d8e8975c2fdbd90
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Wed Jun 25 08:01:57 2014 +0100

    sna: Disable userptr for bdw

    Something fishy is afoot. But let's kill this particularly worrisome
    regression so that we can do a full round of testing.

    References: https://bugs.freedesktop.org/show_bug.cgi?id=79053
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

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