ACK/Cmnt: [SRU][M:raspi][PULL v2] vc4-drm gpu: [drm] *ERROR* Failed to allocate DLIST entry: -28 (LP: #2046584)

[Andrei Gherzan]

On 24/01/08 04:37PM, Juerg Haefliger wrote:
> On Mon, 8 Jan 2024 12:31:07 +0000
> Andrei Gherzan <andrei.gherzan at canonical.com> wrote:
> 
> > On 24/01/08 11:47AM, Juerg Haefliger wrote:
> > > BugLink: https://bugs.launchpad.net/bugs/2046584
> > > 
> > > [Impact]
> > > 
> > > After running for some time the GUI freezes.
> > > This happens on a Raspberry PI 4 running Ubuntu 23.10
> > > Linux hawk1 6.5.0-1008-raspi #11-Ubuntu SMP PREEMPT_DYNAMIC Wed Nov 22 19:08:26 UTC 2023 aarch64 aarch64 aarch64 GNU/Linux
> > > 
> > > This issue was also reported here:
> > > https://github.com/raspberrypi/linux/issues/5674
> > > 
> > > Seems like this pull requests fixes it:
> > > https://github.com/raspberrypi/linux/pull/5684
> > > 
> > > Some logs from the most recent incident:
> > > 2023-12-15T15:25:37.216748-05:00 hawk1 gnome-shell[1293]: Page flip failed: drmModeAtomicCommit: No space left on device
> > > 2023-12-15T15:25:37.263913-05:00 hawk1 kernel: [ 1045.576619] vc4-drm gpu: [drm] *ERROR* Failed to allocate DLIST entry: -28
> > > 2023-12-15T15:25:37.263548-05:00 hawk1 gnome-shell[1293]: Page flip failed: drmModeAtomicCommit: No space left on device
> > > 2023-12-15T15:25:37.278139-05:00 hawk1 gnome-shell[1293]: Cursor update failed: drmModeAtomicCommit: No space left on device
> > > 2023-12-15T15:25:37.279826-05:00 hawk1 kernel: [ 1045.591912] vc4-drm gpu: [drm] *ERROR* Failed to allocate DLIST entry: -28
> > > 2023-12-15T15:25:37.298467-05:00 hawk1 gnome-shell[1293]: Page flip failed: drmModeAtomicCommit: No space left on device
> > > 2023-12-15T15:25:37.299916-05:00 hawk1 kernel: [ 1045.611834] vc4-drm gpu: [drm] *ERROR* Failed to allocate DLIST entry: -28
> > > 2023-12-15T15:25:37.312469-05:00 hawk1 gnome-shell[1293]: Cursor update failed: drmModeAtomicCommit: No space left on device
> > > 2023-12-15T15:25:37.315838-05:00 hawk1 kernel: [ 1045.626371] vc4-drm gpu: [drm] *ERROR* Failed to allocate DLIST entry: -28
> > > 2023-12-15T15:25:37.331875-05:00 hawk1 kernel: [ 1045.644563] vc4-drm gpu: [drm] *ERROR* Failed to allocate DLIST entry: -28
> > > 2023-12-15T15:25:37.330814-05:00 hawk1 gnome-shell[1293]: Cursor update failed: drmModeAtomicCommit: No space left on device
> > > 2023-12-15T15:25:37.349465-05:00 hawk1 gnome-shell[1293]: Page flip failed: drmModeAtomicCommit: No space left on device
> > > 2023-12-15T15:25:37.352021-05:00 hawk1 kernel: [ 1045.662809] vc4-drm gpu: [drm] *ERROR* Failed to allocate DLIST entry: -28
> > > 2023-12-15T15:25:37.387925-05:00 hawk1 kernel: [ 1045.698223] vc4-drm gpu: [drm] *ERROR* Failed to allocate DLIST entry: -28
> > > 2023-12-15T15:25:37.435919-05:00 hawk1 kernel: [ 1045.749879] vc4-drm gpu: [drm] *ERROR* Failed to allocate DLIST entry: -28
> > > 2023-12-15T15:25:37.471896-05:00 hawk1 kernel: [ 1045.784378] vc4-drm gpu: [drm] *ERROR* Failed to allocate DLIST entry: -28
> > > 
> > > [Test Case]
> > > 
> > > See above. Not easily reproducible at will.
> > > 
> > > [Fix]
> > > 
> > > Pull in latest drm/vc4 fixes from github.com/raspberrypi/linux
> > > 
> > > [Where Problems Could Occur]
> > > 
> > > Modifications are limited to the drm subsystem so only the desktop image should be affected. Potential problems might show up as display (rendering) issues, crashes, freezes and/or kernel crashes/freezes.
> > > 
> > > v2:
> > >   - Add 3 additional commits. One real fix and two fixups to match raspberrypi rpi-6.1.y/rpi-6.5.y.
> > > 
> > > Signed-off-by: Juerg Haefliger <juerg.haefliger at canonical.com>
> > > 
> > > --------
> > > 
> > > The following changes since commit ae3478b8d3cc474c63b947272ca341f0d31e77c4:
> > > 
> > >   UBUNTU: [Config] raspi: Set DW_AXI_DMAC=m (2024-01-03 13:42:26 +0100)
> > > 
> > > are available in the Git repository at:
> > > 
> > >   https://git.launchpad.net/~juergh/+git/linux mantic/linux-raspi/lp2046584
> > > 
> > > for you to fetch changes up to e4cbe8e80566ae1e2d909f795bea655101aa18b6:
> > > 
> > >   UBUNTU: drm/vc4: hvs: Fix compile warnings (2024-01-05 18:29:35 +0100)
> > > 
> > > ----------------------------------------------------------------
> > > Dave Stevenson (21):
> > >       drm: Look for an alias for the displays to use as the DRM device name
> > >       drm/vc4: Correct address offset for planes with src_[xy] offsets
> > >       fbdev: Allow client to request a particular /dev/fbN node
> > >       drm/fb-helper: Look up preferred fbdev node number from DT
> > >       drm/connector: Change DRM card alias from underscore to hyphen
> > >       drm/fb_helper: Change query for FB designation from drm_fb to drm-fb
> > >       drm/vc4: Correct logic on stopping an HVS channel
> > >       drm/vc4: Drop WARN for HVS FIFOs not being empty
> > >       drm/vc4: Free all stale dlists if channel is disabled
> > >       drm/vc4: Add hvs_dlist_allocs debugfs function.
> > >       drm/vc4: Log the size of the dlist allocation that was attempted
> > >       drm/vc4: Drop planes that are completely off-screen
> > >       drm/bridge: display-connector: Select DRM_KMS_HELPER
> > >       drm: vc4: Free the dlist alloc immediately if it never hit the hw
> > >       drm: vc4: Block swiotlb bounce buffers being imported as dmabuf
> > >       drm/vc4: vec: Add the margin properties to the connector
> > >       drm: panel: jdi-lt070me05000: Add prepare_upstream_first flag
> > >       drm/vc4: Correct HVS muxing setup for the moplet
> > >       drm/vc4: Mop and moplet have different register offsets for high addr
> > >       drm/vc4: Fix reading of frame count on GEN5 / Pi4
> > >       drm/vc4: Fixup of patches adding debugfs functions
> > > 
> > > Dom Cobley (2):
> > >       vc4/drm: Remove the clear of SCALER_DISPBKGND_FILL
> > >       drm/vc4: crtc: Support odd horizontal timings on BCM2712
> > > 
> > > Juerg Haefliger (1):
> > >       UBUNTU: drm/vc4: hvs: Fix compile warnings  
> > 
> > Was this proposed upstream?
> 
> This fixes downstream-only code. And in downstream it was fixed later on and
> squashed, so there's no fix commit hence UBUNTU...

Makes sense. Thanks for the clarification.

-- 
Andrei Gherzan
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