From: "Christian König" <ckoenig.leichtzumerken@gmail.com>
To: "Andrey Grodzovsky" <andrey.grodzovsky@amd.com>,
"Christian König" <christian.koenig@amd.com>,
dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org,
linux-pci@vger.kernel.org, daniel.vetter@ffwll.ch,
Harry.Wentland@amd.com
Cc: Alexander.Deucher@amd.com, gregkh@linuxfoundation.org,
ppaalanen@gmail.com, helgaas@kernel.org, Felix.Kuehling@amd.com
Subject: Re: [PATCH v7 13/16] drm/scheduler: Fix hang when sched_entity released
Date: Wed, 19 May 2021 13:56:20 +0200 [thread overview]
Message-ID: <fa81de6a-e272-66cf-61d8-5bb2d0ebcb03@gmail.com> (raw)
In-Reply-To: <bc94fbc3-8e02-c860-fc58-6301219b84e5@amd.com>
Am 19.05.21 um 13:51 schrieb Andrey Grodzovsky:
>
>
> On 2021-05-19 7:46 a.m., Christian König wrote:
>> Am 19.05.21 um 13:03 schrieb Andrey Grodzovsky:
>>>
>>>
>>> On 2021-05-19 6:57 a.m., Christian König wrote:
>>>> Am 18.05.21 um 20:48 schrieb Andrey Grodzovsky:
>>>>> [SNIP]
>>>>>>>
>>>>>>> Would this be the right way to do it ?
>>>>>>
>>>>>> Yes, it is at least a start. Question is if we can wait blocking
>>>>>> here or not.
>>>>>>
>>>>>> We install a callback a bit lower to avoid blocking, so I'm
>>>>>> pretty sure that won't work as expected.
>>>>>>
>>>>>> Christian.
>>>>>
>>>>> I can't see why this would create problems, as long as the
>>>>> dependencies
>>>>> complete or force competed if they are from same device
>>>>> (extracted) but
>>>>> on a different ring then looks to me it should work. I will give it
>>>>> a try.
>>>>
>>>> Ok, but please also test the case for a killed process.
>>>>
>>>> Christian.
>>>
>>> You mean something like run glxgears and then simply
>>> terminate it ? Because I done that. Or something more ?
>>
>> Well glxgears is a bit to lightweight for that.
>>
>> You need at least some test which is limited by the rendering pipeline.
>>
>> Christian.
>
> You mean something that fill the entity queue faster then sched thread
> empties it so when we kill the process we actually need to explicitly go
> through remaining jobs termination ? I done that too by inserting
> artificial delay in drm_sched_main.
Yeah, something like that.
Ok in that case I would say that this should work then.
Christian.
>
> Andrey
>
>>
>>>
>>> Andrey
>>>
>>>
>>>>
>>>>>
>>>>> Andrey
>>>>
>>>> _______________________________________________
>>>> amd-gfx mailing list
>>>> amd-gfx@lists.freedesktop.org
>>>> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Famd-gfx&data=04%7C01%7Candrey.grodzovsky%40amd.com%7Cce1252e55fae4338710d08d91ab4de01%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637570186393107071%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=vGqxY5sxpEIiQGFBNn2PWkKqVjviM29r34Yjv0wujf4%3D&reserved=0
>>>>
>>
next prev parent reply other threads:[~2021-05-19 11:56 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-12 14:26 [PATCH v7 00/16] RFC Support hot device unplug in amdgpu Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 01/16] drm/ttm: Remap all page faults to per process dummy page Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 02/16] drm/amdgpu: Split amdgpu_device_fini into early and late Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 03/16] drm/amdkfd: Split kfd suspend from device exit Andrey Grodzovsky
2021-05-12 20:33 ` Felix Kuehling
2021-05-12 20:38 ` Andrey Grodzovsky
2021-05-20 3:20 ` [PATCH] drm/amdgpu: Add early fini callback Andrey Grodzovsky
2021-05-20 3:29 ` Felix Kuehling
2021-05-20 3:58 ` Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 04/16] " Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 05/16] drm/amdgpu: Handle IOMMU enabled case Andrey Grodzovsky
2021-05-14 14:41 ` Andrey Grodzovsky
2021-05-14 16:25 ` Felix Kuehling
2021-05-14 16:26 ` Andrey Grodzovsky
2021-05-17 14:38 ` [PATCH] " Andrey Grodzovsky
2021-05-17 14:48 ` Felix Kuehling
2021-05-12 14:26 ` [PATCH v7 06/16] drm/amdgpu: Remap all page faults to per process dummy page Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 07/16] PCI: Add support for dev_groups to struct pci_driver Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 08/16] drm/amdgpu: Convert driver sysfs attributes to static attributes Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 09/16] drm/amdgpu: Guard against write accesses after device removal Andrey Grodzovsky
2021-05-12 20:17 ` Alex Deucher
2021-05-12 20:30 ` Andrey Grodzovsky
2021-05-12 20:50 ` Alex Deucher
2021-05-13 14:47 ` Andrey Grodzovsky
2021-05-13 14:54 ` Alex Deucher
2021-05-12 14:26 ` [PATCH v7 10/16] drm/sched: Make timeout timer rearm conditional Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 11/16] drm/amdgpu: Prevent any job recoveries after device is unplugged Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 12/16] drm/amdgpu: Fix hang on device removal Andrey Grodzovsky
2021-05-14 14:42 ` Andrey Grodzovsky
2021-05-17 14:40 ` Andrey Grodzovsky
2021-05-17 17:39 ` Alex Deucher
2021-05-17 19:39 ` Christian König
2021-05-17 19:46 ` Andrey Grodzovsky
2021-05-17 19:54 ` Christian König
2021-05-12 14:26 ` [PATCH v7 13/16] drm/scheduler: Fix hang when sched_entity released Andrey Grodzovsky
2021-05-18 14:07 ` Christian König
2021-05-18 15:03 ` Andrey Grodzovsky
2021-05-18 15:15 ` Christian König
2021-05-18 16:17 ` Andrey Grodzovsky
2021-05-18 16:33 ` Christian König
2021-05-18 17:43 ` Andrey Grodzovsky
2021-05-18 18:02 ` Christian König
2021-05-18 18:09 ` Andrey Grodzovsky
2021-05-18 18:13 ` Christian König
2021-05-18 18:48 ` Andrey Grodzovsky
2021-05-18 20:56 ` Andrey Grodzovsky
2021-05-19 10:57 ` Christian König
2021-05-19 11:03 ` Andrey Grodzovsky
2021-05-19 11:46 ` Christian König
2021-05-19 11:51 ` Andrey Grodzovsky
2021-05-19 11:56 ` Christian König [this message]
2021-05-19 14:14 ` [PATCH] drm/sched: Avoid data corruptions Andrey Grodzovsky
2021-05-19 14:15 ` Christian König
2021-05-12 14:26 ` [PATCH v7 14/16] drm/amd/display: Remove superfluous drm_mode_config_cleanup Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 15/16] drm/amdgpu: Verify DMA opearations from device are done Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 16/16] drm/amdgpu: Unmap all MMIO mappings Andrey Grodzovsky
2021-05-14 14:42 ` Andrey Grodzovsky
2021-05-17 14:41 ` Andrey Grodzovsky
2021-05-17 17:43 ` Alex Deucher
2021-05-17 18:46 ` Andrey Grodzovsky
2021-05-17 18:56 ` Alex Deucher
2021-05-17 19:22 ` Andrey Grodzovsky
2021-05-17 19:31 ` [PATCH] " Andrey Grodzovsky
2021-05-18 14:01 ` Andrey Grodzovsky
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