[Bug 103109] userptr vs swap -- BUG: unable to handle kernel paging request

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103109

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit 073cd7816685ac77c6d8b4d321a5586c9177b76a
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Sun Jan 21 17:31:43 2018 +0000

    drm/i915: Protect WC stash allocation against direct reclaim

    As we attempt to allocate pages for use in a new WC stash, direct
    reclaim may run underneath us and fill up the WC stash. We have to be
    careful then not to overflow the pvec.

    Fixes: 66df1014efba ("drm/i915: Keep a small stash of preallocated WC
pages")
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103109
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Cc: Matthew Auld <matthew.auld at intel.com>
    Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
    Reviewed-by: Matthew Auld <matthew.auld at intel.com>
    Link:
https://patchwork.freedesktop.org/patch/msgid/20180121173143.17090-1-chris@chris-wilson.co.uk

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