linux-kernel - Re: (REGRESSION bisected) Re: amdgpu errors (VM fault / GPU fault detected) with 5.19 merge window snapshots

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Date:   Mon, 6 Jun 2022 12:25:13 +0200
From:   Christian König <christian.koenig@....com>
To:     Michal Kubecek <mkubecek@...e.cz>,
        Alex Deucher <alexdeucher@...il.com>
Cc:     "Yang, Philip" <Philip.Yang@....com>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        Alex Deucher <alexander.deucher@....com>,
        Felix Kuehling <Felix.Kuehling@....com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: (REGRESSION bisected) Re: amdgpu errors (VM fault / GPU fault
 detected) with 5.19 merge window snapshots

Am 06.06.22 um 00:00 schrieb Michal Kubecek:
> [SNIP]
>> This patch should help:
>> https://patchwork.freedesktop.org/patch/488258/
> After ~48 hours with this patch, still no apparent issues.
>
> Tested-by: Michal Kubecek <mkubecek@...e.cz>

Thanks, this could be optimized for gfx8 a bit if anybody is interested 
in a typing exercise.

E.g. we only need the tlb flush when "start" or "end" are not 8 entries 
aligned on gfx8.

I don't have time to test this, but should be trivial to implement.

Christian.

>
> Michal