linux-kernel - Re: [PATCH v6 1/5] drm/amdgpu: Allocate coredump memory in a nonblocking way

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Date:   Mon, 11 Sep 2023 13:14:55 +0200
From:   Christian König <christian.koenig@....com>
To:     André Almeida <andrealmeid@...lia.com>,
        dri-devel@...ts.freedesktop.org, amd-gfx@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org,
        Shashank Sharma <shashank.sharma@....com>
Cc:     kernel-dev@...lia.com, alexander.deucher@....com,
        pierre-eric.pelloux-prayer@....com
Subject: Re: [PATCH v6 1/5] drm/amdgpu: Allocate coredump memory in a
 nonblocking way

Am 11.09.23 um 05:00 schrieb André Almeida:
> During a GPU reset, a normal memory reclaim could block to reclaim
> memory. Giving that coredump is a best effort mechanism, it shouldn't
> disturb the reset path. Change its memory allocation flag to a
> nonblocking one.

Since it is a bug fix I've already pushed this one into our internal 
branch quite a while ago.

Shashank can you take care of picking up the remaining patches and 
pushing them to amd-staging-drm-next?

Thanks,
Christian.

>
> Signed-off-by: André Almeida <andrealmeid@...lia.com>
> Reviewed-by: Christian König <christian.koenig@....com>
> ---
> v5: no change
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> index aa171db68639..bf4781551f88 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> @@ -4847,7 +4847,7 @@ static void amdgpu_reset_capture_coredumpm(struct amdgpu_device *adev)
>   	struct drm_device *dev = adev_to_drm(adev);
>   
>   	ktime_get_ts64(&adev->reset_time);
> -	dev_coredumpm(dev->dev, THIS_MODULE, adev, 0, GFP_KERNEL,
> +	dev_coredumpm(dev->dev, THIS_MODULE, adev, 0, GFP_NOWAIT,
>   		      amdgpu_devcoredump_read, amdgpu_devcoredump_free);
>   }
>   #endif