From: Dmitry Osipenko <dmitry.osipenko@collabora.com>
To: "Robin Murphy" <robin.murphy@arm.com>,
"David Airlie" <airlied@linux.ie>,
"Gerd Hoffmann" <kraxel@redhat.com>,
"Gurchetan Singh" <gurchetansingh@chromium.org>,
"Chia-I Wu" <olvaffe@gmail.com>,
"Daniel Vetter" <daniel@ffwll.ch>,
"Daniel Almeida" <daniel.almeida@collabora.com>,
"Gert Wollny" <gert.wollny@collabora.com>,
"Gustavo Padovan" <gustavo.padovan@collabora.com>,
"Daniel Stone" <daniel@fooishbar.org>,
"Tomeu Vizoso" <tomeu.vizoso@collabora.com>,
"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
"Maxime Ripard" <mripard@kernel.org>,
"Thomas Zimmermann" <tzimmermann@suse.de>,
"Rob Herring" <robh@kernel.org>,
"Steven Price" <steven.price@arm.com>,
"Alyssa Rosenzweig" <alyssa.rosenzweig@collabora.com>,
"Rob Clark" <robdclark@gmail.com>,
"Emil Velikov" <emil.l.velikov@gmail.com>,
"Qiang Yu" <yuq825@gmail.com>,
"Sumit Semwal" <sumit.semwal@linaro.org>,
"Christian König" <christian.koenig@amd.com>,
"Pan, Xinhui" <Xinhui.Pan@amd.com>,
"Thierry Reding" <thierry.reding@gmail.com>,
"Tomasz Figa" <tfiga@chromium.org>,
"Marek Szyprowski" <m.szyprowski@samsung.com>,
"Mauro Carvalho Chehab" <mchehab@kernel.org>,
"Alex Deucher" <alexander.deucher@amd.com>,
"Jani Nikula" <jani.nikula@linux.intel.com>,
"Joonas Lahtinen" <joonas.lahtinen@linux.intel.com>,
"Rodrigo Vivi" <rodrigo.vivi@intel.com>,
"Tvrtko Ursulin" <tvrtko.ursulin@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org,
virtualization@lists.linux-foundation.org,
linaro-mm-sig@lists.linaro.org, amd-gfx@lists.freedesktop.org,
linux-tegra@vger.kernel.org, Dmitry Osipenko <digetx@gmail.com>,
kernel@collabora.com, linux-media@vger.kernel.org
Subject: Re: [PATCH v6 00/22] Add generic memory shrinker to VirtIO-GPU and Panfrost DRM drivers
Date: Tue, 28 Jun 2022 16:11:07 +0300 [thread overview]
Message-ID: <8c5d3cb0-70fa-81a7-33a2-50f45bf8f40e@collabora.com> (raw)
In-Reply-To: <49cc6f0c-e90e-8edd-52e7-4188620e2c28@arm.com>
Hello Robin,
On 6/28/22 15:31, Robin Murphy wrote:
>> Hello,
>>
>> This patchset introduces memory shrinker for the VirtIO-GPU DRM driver
>> and adds memory purging and eviction support to VirtIO-GPU driver.
>>
>> The new dma-buf locking convention is introduced here as well.
>>
>> During OOM, the shrinker will release BOs that are marked as "not needed"
>> by userspace using the new madvise IOCTL, it will also evict idling BOs
>> to SWAP. The userspace in this case is the Mesa VirGL driver, it will
>> mark
>> the cached BOs as "not needed", allowing kernel driver to release memory
>> of the cached shmem BOs on lowmem situations, preventing OOM kills.
>>
>> The Panfrost driver is switched to use generic memory shrinker.
>
> I think we still have some outstanding issues here - Alyssa reported
> some weirdness yesterday, so I just tried provoking a low-memory
> condition locally with this series applied and a few debug options
> enabled, and the results as below were... interesting.
The warning and crash that you got actually are the minor issues.
Alyssa caught an interesting PREEMPT_DEBUG issue in the shrinker that I
haven't seen before.
She is also experiencing another problem in the Panfrost driver with a
bad shmem pages (I think). It is unrelated to this patchset and
apparently require an extra setup for the reproduction.
--
Best regards,
Dmitry
prev parent reply other threads:[~2022-06-28 13:11 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-26 23:50 [PATCH v6 00/22] Add generic memory shrinker to VirtIO-GPU and Panfrost DRM drivers Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 01/22] drm/gem: Properly annotate WW context on drm_gem_lock_reservations() error Dmitry Osipenko
2022-06-28 20:12 ` Thomas Hellström (Intel)
2022-06-29 8:23 ` Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 02/22] drm/gem: Move mapping of imported dma-bufs to drm_gem_mmap_obj() Dmitry Osipenko
2022-06-29 6:40 ` Thomas Hellström (Intel)
2022-06-29 8:22 ` Dmitry Osipenko
2022-06-29 8:43 ` Thomas Hellström (Intel)
2022-06-29 23:06 ` Dmitry Osipenko
2022-07-04 12:33 ` [Linaro-mm-sig] " Christian König
2022-07-04 22:44 ` Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 03/22] drm/panfrost: Put mapping instead of shmem obj on panfrost_mmu_map_fault_addr() error Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 04/22] drm/panfrost: Fix shrinker list corruption by madvise IOCTL Dmitry Osipenko
2022-05-27 15:56 ` Alyssa Rosenzweig
2022-05-30 9:41 ` Steven Price
2022-05-26 23:50 ` [PATCH v6 05/22] drm/virtio: Correct drm_gem_shmem_get_sg_table() error handling Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 06/22] drm/virtio: Check whether transferred 2D BO is shmem Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 07/22] drm/virtio: Unlock reservations on virtio_gpu_object_shmem_init() error Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 08/22] drm/virtio: Unlock reservations on dma_resv_reserve_fences() error Dmitry Osipenko
2022-06-29 6:43 ` Thomas Hellström (Intel)
2022-05-26 23:50 ` [PATCH v6 09/22] drm/virtio: Use appropriate atomic state in virtio_gpu_plane_cleanup_fb() Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 10/22] drm/shmem-helper: Add missing vunmap on error Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 11/22] drm/shmem-helper: Correct doc-comment of drm_gem_shmem_get_sg_table() Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 12/22] drm/virtio: Simplify error handling of virtio_gpu_object_create() Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 13/22] drm/virtio: Improve DMA API usage for shmem BOs Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 14/22] dma-buf: Introduce new locking convention Dmitry Osipenko
2022-05-30 6:50 ` Christian König
2022-05-30 13:26 ` Dmitry Osipenko
2022-05-30 13:41 ` Christian König
2022-05-30 13:57 ` Dmitry Osipenko
2022-06-28 21:26 ` Thomas Hellström (Intel)
2022-07-01 10:43 ` Dmitry Osipenko
2022-07-04 22:38 ` Dmitry Osipenko
2022-07-05 10:52 ` Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 15/22] drm/shmem-helper: Don't use vmap_use_count for dma-bufs Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 16/22] drm/shmem-helper: Use reservation lock Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 17/22] drm/shmem-helper: Add generic memory shrinker Dmitry Osipenko
2022-06-05 16:47 ` Daniel Vetter
2022-06-05 18:32 ` Rob Clark
2022-06-05 18:45 ` Daniel Vetter
2022-06-06 10:57 ` Christian König
2022-06-07 15:33 ` Dmitry Osipenko
2022-06-19 17:53 ` Rob Clark
2022-06-20 14:08 ` Dmitry Osipenko
2022-06-20 15:18 ` Rob Clark
2022-06-24 20:23 ` Daniel Vetter
2022-06-24 20:21 ` Daniel Vetter
2022-06-20 15:37 ` Rob Clark
2022-06-21 16:39 ` Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 18/22] drm/gem: Add drm_gem_pin_unlocked() Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 19/22] drm/virtio: Support memory shrinking Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 20/22] drm/virtio: Use dev_is_pci() Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 21/22] drm/virtio: Return proper error codes instead of -1 Dmitry Osipenko
2022-05-26 23:50 ` [PATCH v6 22/22] drm/panfrost: Switch to generic memory shrinker Dmitry Osipenko
2022-05-27 11:48 ` Alyssa Rosenzweig
2022-06-10 14:40 ` [PATCH v6 00/22] Add generic memory shrinker to VirtIO-GPU and Panfrost DRM drivers Dmitry Osipenko
2022-06-28 12:31 ` Robin Murphy
2022-06-28 12:50 ` Dmitry Osipenko
2022-06-28 16:48 ` Rob Clark
2022-06-28 23:11 ` Dmitry Osipenko
2022-06-28 12:51 ` Dmitry Osipenko
2022-06-28 13:11 ` Dmitry Osipenko [this message]
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