Re: Issues with mid-command buffer preemption

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Subject: Re: Issues with mid-command buffer preemption
From: Alex Deucher <alexdeucher@xxxxxxxxx>
Date: Thu, 16 May 2024 10:52:55 -0400
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
In-reply-to: <CAE4jU7geruhw=+e8yg4_CFZ=-OssDnt=kHdJvhPUDB=-q660wg@mail.gmail.com>
References: <CABQX2QMVfsZZrHLktZ=MhJ5gG1ATRuSGa+E-CKfXATgU5BwMwQ@mail.gmail.com> <CAE4jU7geruhw=+e8yg4_CFZ=-OssDnt=kHdJvhPUDB=-q660wg@mail.gmail.com>

On Thu, May 16, 2024 at 4:12 AM Gregory Carter <gjcarter2@xxxxxxxxx> wrote:
>
> This problem on this particular machine can be avoided by using the kernel command line option amdgpu.mcbp=0

Something else must be going on.  mcbp is disabled by default except
for SR-IOV virtual functions.

Alex

References:
- dma-buf sg mangling
  - From: Zack Rusin
- Issues with mid-command buffer preemption
  - From: Gregory Carter

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