Hi
Am 27.08.25 um 13:07 schrieb Mark Brown:
On Mon, Jul 14, 2025 at 05:13:04PM +0200, Thomas Zimmermann wrote:
Use the color format stored in struct drm_sysfb_crtc_state for
color-format conversion instead of the scanout-buffer format
announced by firmware. Currently, both values are identical.
This patch, which is in -next as
061963cd9e5b60672695e9a592be440469a6bf72, breaks boot on the original
Raspberry Pi. We get an oops after initialising the console:
Thanks for reporting the bug. A patch is available at [1]. Waiting for
reviewers.
[1]
https://lore.kernel.org/dri-devel/20250826145044.954396-1-tzimmerm...@suse.de/
Best regards
Thomas
[ 4.057189] Console: switching to colour dummy device 80x30
[ 4.057903] 8<--- cut here ---
[ 4.057990] Unable to handle kernel NULL pointer dereference at virtual
address 00000048 when read
...
[ 4.423159] Call trace:
[ 4.423196] drm_sysfb_plane_helper_atomic_disable from
drm_atomic_helper_commit_planes+0x188/0x274
[ 4.434958] drm_atomic_helper_commit_planes from
drm_atomic_helper_commit_tail+0x30/0x68
[ 4.443259] drm_atomic_helper_commit_tail from commit_tail+0x144/0x154
[ 4.449984] commit_tail from drm_atomic_helper_commit+0xfc/0x10c
[ 4.456183] drm_atomic_helper_commit from drm_atomic_commit+0xc4/0xf4
[ 4.462842] drm_atomic_commit from drm_framebuffer_remove+0x220/0x4f0
[ 4.469495] drm_framebuffer_remove from drm_mode_rmfb_work_fn+0x70/0x78
[ 4.476306] drm_mode_rmfb_work_fn from process_scheduled_works+0x198/0x290
[ 4.483378] process_scheduled_works from worker_thread+0x16c/0x1f8
Full log:
https://lava.sirena.org.uk/scheduler/job/1741780#L776
Bisect log, with links to additional logs:
# bad: [3c642997252eef4449cb6b6e02af3dc22515d817] Add linux-next specific files
for 20250827
# good: [f51af24f910debef214edf108f7efad30874bc4f] Merge branch
'for-linux-next-fixes' of https://gitlab.freedesktop.org/drm/misc/kernel.git
# good: [a12b74d2bd4724ee1883bc97ec93eac8fafc8d3c] ASoC: tlv320aic32x4: use
dev_err_probe() for regulators
# good: [f840737d1746398c2993be34bfdc80bdc19ecae2] ASoC: SOF: imx: Remove the
use of dev_err_probe()
# good: [d78e48ebe04e9566f8ecbf51471e80da3adbceeb] ASoC: dt-bindings: Minor
whitespace cleanup in example
# good: [96bcb34df55f7fee99795127c796315950c94fed] ASoC: test-component: Use
kcalloc() instead of kzalloc()
# good: [c232495d28ca092d0c39b10e35d3d613bd2414ab] ASoC: dt-bindings:
omap-twl4030: convert to DT schema
# good: [27848c082ba0b22850fd9fb7b185c015423dcdc7] spi: s3c64xx: Remove the use
of dev_err_probe()
# good: [ec0be3cdf40b5302248f3fb27a911cc630e8b855] regulator: consumer.rst:
document bulk operations
# good: [da9881d00153cc6d3917f6b74144b1d41b58338c] ASoC: qcom: audioreach: add
support for SMECNS module
# good: [c1dd310f1d76b4b13f1854618087af2513140897] spi: SPISG: Use
devm_kcalloc() in aml_spisg_clk_init()
# good: [2a55135201d5e24b80b7624880ff42eafd8e320c] ASoC: Intel: avs: Streamline
register-component function names
# good: [550bc517e59347b3b1af7d290eac4fb1411a3d4e] regulator: bd718x7: Use
kcalloc() instead of kzalloc()
# good: [0056b410355713556d8a10306f82e55b28d33ba8] spi: offload trigger:
adi-util-sigma-delta: clean up imports
# good: [cf65182247761f7993737b710afe8c781699356b] ASoC: codecs: wsa883x:
Handle shared reset GPIO for WSA883x speakers
# good: [90179609efa421b1ccc7d8eafbc078bafb25777c] spi: spl022: use min_t() to
improve code
# good: [daf855f76a1210ceed9541f71ac5dd9be02018a6] ASoC: es8323: enable DAPM
power widgets for playback DAC
# good: [48124569bbc6bfda1df3e9ee17b19d559f4b1aa3] spi: remove unneeded
'fast_io' parameter in regmap_config
# good: [258384d8ce365dddd6c5c15204de8ccd53a7ab0a] ASoC: es8323: enable DAPM
power widgets for playback DAC and output
# good: [6d068f1ae2a2f713d7f21a9a602e65b3d6b6fc6d] regulator: rt5133: Fix spelling mistake
"regualtor" -> "regulator"
# good: [a46e95c81e3a28926ab1904d9f754fef8318074d] ASoC: wl1273: Remove
# good: [0e62438e476494a1891a8822b9785bc6e73e9c3f] ASoC: Intel: sst: Remove
redundant semicolons
# good: [37533933bfe92cd5a99ef4743f31dac62ccc8de0] regulator: remove unneeded
'fast_io' parameter in regmap_config
# good: [5c36b86d2bf68fbcad16169983ef7ee8c537db59] regmap: Remove superfluous
check for !config in __regmap_init()
# good: [714165e1c4b0d5b8c6d095fe07f65e6e7047aaeb] regulator: rt5133: Add
RT5133 PMIC regulator Support
# good: [9c45f95222beecd6a284fd1284d54dd7a772cf59] spi: spi-qpic-snand: handle
'use_ecc' parameter of qcom_spi_config_cw_read()
# good: [bab4ab484a6ca170847da9bffe86f1fa90df4bbe] ASoC: dt-bindings: Convert
brcm,bcm2835-i2s to DT schema
# good: [b832b19318534bb4f1673b24d78037fee339c679] spi: loopback-test: Don't
use %pK through printk
# good: [8c02c8353460f8630313aef6810f34e134a3c1ee] ASoC: dt-bindings:
realtek,alc5623: convert to DT schema
# good: [6b7e2aa50bdaf88cd4c2a5e2059a7bf32d85a8b1] spi: spi-qpic-snand: remove
'clr*status' members of struct 'qpic_ecc'
# good: [2291a2186305faaf8525d57849d8ba12ad63f5e7] MAINTAINERS: Add entry for
FourSemi audio amplifiers
# good: [a54ef14188519a0994d0264f701f5771815fa11e] regulator: dt-bindings:
Clean-up active-semi,act8945a duplication
# good: [cf25eb8eae91bcae9b2065d84b0c0ba0f6d9dd34] ASoC: soc-component: unpack
snd_soc_component_init_bias_level()
# good: [595b7f155b926460a00776cc581e4dcd01220006] ASoC: Intel: avs:
Conditional-path support
# good: [a1d0b0ae65ae3f32597edfbb547f16c75601cd87] spi: spi-qpic-snand: avoid
double assignment in qcom_spi_probe()
# good: [3059067fd3378a5454e7928c08d20bf3ef186760] ASoC: cs48l32: Use
PTR_ERR_OR_ZERO() to simplify code
# good: [9a200cbdb54349909a42b45379e792e4b39dd223] rust: regulator: implement Send
and Sync for Regulator<T>
# good: [2d86d2585ab929a143d1e6f8963da1499e33bf13] ASoC: pxa: add
GPIOLIB_LEGACY dependency
# good: [886f42ce96e7ce80545704e7168a9c6b60cd6c03] regmap: mmio: Add missing
MODULE_DESCRIPTION()
# good: [162e23657e5379f07c6404dbfbf4367cb438ea7d] regulator: pf0900: Add PMIC
PF0900 support
git bisect start '3c642997252eef4449cb6b6e02af3dc22515d817'
'f51af24f910debef214edf108f7efad30874bc4f'
'a12b74d2bd4724ee1883bc97ec93eac8fafc8d3c'
'f840737d1746398c2993be34bfdc80bdc19ecae2'
'd78e48ebe04e9566f8ecbf51471e80da3adbceeb'
'96bcb34df55f7fee99795127c796315950c94fed'
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'27848c082ba0b22850fd9fb7b185c015423dcdc7'
'ec0be3cdf40b5302248f3fb27a911cc630e8b855'
'da9881d00153cc6d3917f6b74144b1d41b58338c'
'c1dd310f1d76b4b13f1854618087af2513140897'
'2a55135201d5e24b80b7624880ff42eafd8e320c'
'550bc517e59347b3b1af7d290eac4fb1411a3d4e'
'0056b410355713556d8a10306f82e55b28d33ba8'
'cf65182247761f7993737b710afe8c781699356b'
'90179609efa421b1ccc7d8eafbc078bafb25777c'
'daf855f76a1210ceed9541f71ac5dd9be02018a6'
'48124569bbc6bfda1df3e9ee17b19d559f4b1aa3'
'258384d8ce365dddd6c5c15204de8ccd53a7ab0a'
'6d068f1ae2a2f713d7f21a9a602e65b3d6b6fc6d'
'a46e95c81e3a28926ab1904d9f754fef8318074d'
'0e62438e476494a1891a8822b9785bc6e73e9c3f'
'37533933bfe92cd5a99ef4743f31dac62ccc8de0'
'5c36b86d2bf68fbcad16169983ef7ee8c537db59'
'714165e1c4b0d5b8c6d095fe07f65e6e7047aaeb'
'9c45f95222beecd6a284fd1284d54dd7a772cf59'
'bab4ab484a6ca170847da9bffe86f1fa90df4bbe'
'b832b19318534bb4f1673b24d78037fee339c679'
'8c02c8353460f8630313aef6810f34e134a3c1ee'
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'2291a2186305faaf8525d57849d8ba12ad63f5e7'
'a54ef14188519a0994d0264f701f5771815fa11e'
'cf25eb8eae91bcae9b2065d84b0c0ba0f6d9dd34'
'595b7f155b926460a00776cc581e4dcd01220006'
'a1d0b0ae65ae3f32597edfbb547f16c75601cd87'
'3059067fd3378a5454e7928c08d20bf3ef186760'
'9a200cbdb54349909a42b45379e792e4b39dd223'
'2d86d2585ab929a143d1e6f8963da1499e33bf13'
'886f42ce96e7ce80545704e7168a9c6b60cd6c03'
'162e23657e5379f07c6404dbfbf4367cb438ea7d'
# test job: [a12b74d2bd4724ee1883bc97ec93eac8fafc8d3c]
https://lava.sirena.org.uk/scheduler/job/1734135
# test job: [f840737d1746398c2993be34bfdc80bdc19ecae2]
https://lava.sirena.org.uk/scheduler/job/1727230
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https://lava.sirena.org.uk/scheduler/job/1694260
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https://lava.sirena.org.uk/scheduler/job/1693330
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https://lava.sirena.org.uk/scheduler/job/1693130
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https://lava.sirena.org.uk/scheduler/job/1685827
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https://lava.sirena.org.uk/scheduler/job/1685690
# test job: [0056b410355713556d8a10306f82e55b28d33ba8]
https://lava.sirena.org.uk/scheduler/job/1685834
# test job: [cf65182247761f7993737b710afe8c781699356b]
https://lava.sirena.org.uk/scheduler/job/1687590
# test job: [90179609efa421b1ccc7d8eafbc078bafb25777c]
https://lava.sirena.org.uk/scheduler/job/1685811
# test job: [daf855f76a1210ceed9541f71ac5dd9be02018a6]
https://lava.sirena.org.uk/scheduler/job/1685552
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# test job: [258384d8ce365dddd6c5c15204de8ccd53a7ab0a]
https://lava.sirena.org.uk/scheduler/job/1673449
# test job: [6d068f1ae2a2f713d7f21a9a602e65b3d6b6fc6d]
https://lava.sirena.org.uk/scheduler/job/1673208
# test job: [a46e95c81e3a28926ab1904d9f754fef8318074d]
https://lava.sirena.org.uk/scheduler/job/1673819
# test job: [0e62438e476494a1891a8822b9785bc6e73e9c3f]
https://lava.sirena.org.uk/scheduler/job/1669629
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https://lava.sirena.org.uk/scheduler/job/1669021
# test job: [5c36b86d2bf68fbcad16169983ef7ee8c537db59]
https://lava.sirena.org.uk/scheduler/job/1667994
# test job: [714165e1c4b0d5b8c6d095fe07f65e6e7047aaeb]
https://lava.sirena.org.uk/scheduler/job/1667749
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https://lava.sirena.org.uk/scheduler/job/1667650
# test job: [bab4ab484a6ca170847da9bffe86f1fa90df4bbe]
https://lava.sirena.org.uk/scheduler/job/1664754
# test job: [b832b19318534bb4f1673b24d78037fee339c679]
https://lava.sirena.org.uk/scheduler/job/1659321
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https://lava.sirena.org.uk/scheduler/job/1659043
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# test job: [595b7f155b926460a00776cc581e4dcd01220006]
https://lava.sirena.org.uk/scheduler/job/1653171
# test job: [a1d0b0ae65ae3f32597edfbb547f16c75601cd87]
https://lava.sirena.org.uk/scheduler/job/1653632
# test job: [3059067fd3378a5454e7928c08d20bf3ef186760]
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# test job: [9a200cbdb54349909a42b45379e792e4b39dd223]
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# test job: [2d86d2585ab929a143d1e6f8963da1499e33bf13]
https://lava.sirena.org.uk/scheduler/job/1653200
# test job: [886f42ce96e7ce80545704e7168a9c6b60cd6c03]
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# test job: [162e23657e5379f07c6404dbfbf4367cb438ea7d]
https://lava.sirena.org.uk/scheduler/job/1653604
# test job: [3c642997252eef4449cb6b6e02af3dc22515d817]
https://lava.sirena.org.uk/scheduler/job/1741780
# bad: [3c642997252eef4449cb6b6e02af3dc22515d817] Add linux-next specific files
for 20250827
git bisect bad 3c642997252eef4449cb6b6e02af3dc22515d817
# test job: [7902969a2e75fae35b04772a3e75a29737d463bd]
https://lava.sirena.org.uk/scheduler/job/1741974
# good: [7902969a2e75fae35b04772a3e75a29737d463bd] Merge branch 'for-next' of
https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git
git bisect good 7902969a2e75fae35b04772a3e75a29737d463bd
# test job: [c72c1b7d500f2e37ae06630ee20add5b68c7723c]
https://lava.sirena.org.uk/scheduler/job/1742110
# bad: [c72c1b7d500f2e37ae06630ee20add5b68c7723c] Merge branch 'for-next' of
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git
git bisect bad c72c1b7d500f2e37ae06630ee20add5b68c7723c
# test job: [9f26ae24e6a8435d88cfb8c01f7d02c348eb4868]
https://lava.sirena.org.uk/scheduler/job/1742182
# good: [9f26ae24e6a8435d88cfb8c01f7d02c348eb4868] Merge branch 'drm-next' of
https://gitlab.freedesktop.org/drm/kernel.git
git bisect good 9f26ae24e6a8435d88cfb8c01f7d02c348eb4868
# test job: [257ad6623adaf1685878a0d8724d5c40aa838e93]
https://lava.sirena.org.uk/scheduler/job/1742260
# bad: [257ad6623adaf1685878a0d8724d5c40aa838e93] Merge branch 'drm-next' of
https://gitlab.freedesktop.org/agd5f/linux.git
git bisect bad 257ad6623adaf1685878a0d8724d5c40aa838e93
# test job: [615471b860d628f7e7d9ffdf4b92477493e0a31c]
https://lava.sirena.org.uk/scheduler/job/1742299
# good: [615471b860d628f7e7d9ffdf4b92477493e0a31c] drm/amd/pm: Remove cache
logic from SMUv13.0.12
git bisect good 615471b860d628f7e7d9ffdf4b92477493e0a31c
# test job: [e3bd536580fe553d5768673660b1745ff1bb3b91]
https://lava.sirena.org.uk/scheduler/job/1742396
# good: [e3bd536580fe553d5768673660b1745ff1bb3b91] drm/radeon: Use
vmalloc_array and vcalloc to simplify code
git bisect good e3bd536580fe553d5768673660b1745ff1bb3b91
# test job: [9d3cc361252ee8ff60d7277a97950300e0340ec4]
https://lava.sirena.org.uk/scheduler/job/1742517
# good: [9d3cc361252ee8ff60d7277a97950300e0340ec4] drm/amd/display: Consider
sink max slice width limitation for dsc
git bisect good 9d3cc361252ee8ff60d7277a97950300e0340ec4
# test job: [efe927b9702643a1d80472664c2642f0304cb608]
https://lava.sirena.org.uk/scheduler/job/1742628
# good: [efe927b9702643a1d80472664c2642f0304cb608] drm/msm: fix
msm_gem_vma_new() allocations for managed GPUVMs
git bisect good efe927b9702643a1d80472664c2642f0304cb608
# test job: [b3c7edd5e50e0e92ead8794b084e92d89002dd6f]
https://lava.sirena.org.uk/scheduler/job/1742784
# bad: [b3c7edd5e50e0e92ead8794b084e92d89002dd6f] drm/format-helper: Add
XRGB8888-to-RGB332 to drm_fb_blit()
git bisect bad b3c7edd5e50e0e92ead8794b084e92d89002dd6f
# test job: [d6d05e2af796ca25094f80a73d8841505d54368b]
https://lava.sirena.org.uk/scheduler/job/1742821
# good: [d6d05e2af796ca25094f80a73d8841505d54368b] video: screen_info: Add
pixel-format helper for linear framebuffers
git bisect good d6d05e2af796ca25094f80a73d8841505d54368b
# test job: [061963cd9e5b60672695e9a592be440469a6bf72]
https://lava.sirena.org.uk/scheduler/job/1742968
# bad: [061963cd9e5b60672695e9a592be440469a6bf72] drm/sysfb: Blit to CRTC
destination format
git bisect bad 061963cd9e5b60672695e9a592be440469a6bf72
# test job: [31eea29d727ce35b747e68c6be350ca07b7ecd9b]
https://lava.sirena.org.uk/scheduler/job/1743040
# good: [31eea29d727ce35b747e68c6be350ca07b7ecd9b] drm/sysfb: Find screen_info
format with helpers
git bisect good 31eea29d727ce35b747e68c6be350ca07b7ecd9b
# first bad commit: [061963cd9e5b60672695e9a592be440469a6bf72] drm/sysfb: Blit
to CRTC destination format
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)
