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Message-ID: <0b12b28c-5f42-b56b-ea79-6e3d1052b332@shipmail.org>
Date: Mon, 6 Apr 2020 23:04:37 +0200
From: Thomas Hellström (VMware)
<thomas_os@...pmail.org>
To: "Alex Xu (Hello71)" <alex_y_xu@...oo.ca>, linux-mm@...ck.org,
dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Cc: pv-drivers@...are.com, linux-graphics-maintainer@...are.com,
Andrew Morton <akpm@...ux-foundation.org>,
Michal Hocko <mhocko@...e.com>,
"Matthew Wilcox (Oracle)" <willy@...radead.org>,
"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
Ralph Campbell <rcampbell@...dia.com>,
Jérôme Glisse <jglisse@...hat.com>,
Christian König <christian.koenig@....com>,
Dan Williams <dan.j.williams@...el.com>,
Roland Scheidegger <sroland@...are.com>
Subject: Re: Bad rss-counter state from drm/ttm, drm/vmwgfx: Support huge TTM
pagefaults
Hi,
On 4/6/20 9:51 PM, Alex Xu (Hello71) wrote:
> Using 314b658 with amdgpu, starting sway and firefox causes "BUG: Bad
> rss-counter state" and "BUG: non-zero pgtables_bytes on freeing mm" to
> start filling dmesg, and then closing programs causes more BUGs and
> hangs, and then everything grinds to a halt (can't start more programs,
> can't even reboot through systemd).
>
> Using master and reverting that branch up to that point fixes the
> problem.
>
> I'm using a Ryzen 1600 and AMD Radeon RX 480 on an ASRock B450 Pro4
> board with IOMMU enabled.
If you could try the attached patch, that'd be great!
Thanks,
Thomas
View attachment "0001-drm-ttm-Temporarily-disable-the-huge_fault-callback.patch" of type "text/x-patch" (2776 bytes)
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