[BUG][BISECTED] Freeze at loading init ramdisk
Mirsad Todorovac
mirsad.todorovac at alu.unizg.hr
Sat Jan 20 18:15:07 UTC 2024
On 1/20/24 12:25, Bagas Sanjaya wrote:
> On Wed, Jan 17, 2024 at 07:47:49PM +0100, Mirsad Todorovac wrote:
>> On 1/16/24 01:32, Mirsad Todorovac wrote:
>>> Hi,
>>>
>>> On the Ubuntu 22.04 LTS Jammy platform, on a mainline vanilla torvalds tree kernel, the boot
>>> freezes upon first two lines and before any systemd messages.
>>>
>>> (Please find the config attached.)
>>>
>>> Bisecting the bug led to this result:
>>>
>>> marvin at defiant:~/linux/kernel/linux_torvalds$ git bisect good
>>> d97a78423c33f68ca6543de510a409167baed6f5 is the first bad commit
>>> commit d97a78423c33f68ca6543de510a409167baed6f5
>>> Merge: 61da593f4458 689237ab37c5
>>> Author: Linus Torvalds <torvalds at linux-foundation.org>
>>> Date: Fri Jan 12 14:38:08 2024 -0800
>>>
>>> Merge tag 'fbdev-for-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
>>> Pull fbdev updates from Helge Deller:
>>> "Three fbdev drivers (~8500 lines of code) removed. The Carillo Ranch
>>> fbdev driver is for an Intel product which was never shipped, and for
>>> the intelfb and the amba-clcd drivers the drm drivers can be used
>>> instead.
>>> The other code changes are minor: some fb_deferred_io flushing fixes,
>>> imxfb margin fixes and stifb cleanups.
>>> Summary:
>>> - Remove intelfb fbdev driver (Thomas Zimmermann)
>>> - Remove amba-clcd fbdev driver (Linus Walleij)
>>> - Remove vmlfb Carillo Ranch fbdev driver (Matthew Wilcox)
>>> - fb_deferred_io flushing fixes (Nam Cao)
>>> - imxfb code fixes and cleanups (Dario Binacchi)
>>> - stifb primary screen detection cleanups (Thomas Zimmermann)"
>>> * tag 'fbdev-for-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: (28 commits)
>>> fbdev/intelfb: Remove driver
>>> fbdev/hyperv_fb: Do not clear global screen_info
>>> firmware/sysfb: Clear screen_info state after consuming it
>>> fbdev/hyperv_fb: Remove firmware framebuffers with aperture helpers
>>> drm/hyperv: Remove firmware framebuffers with aperture helper
>>> fbdev/sis: Remove dependency on screen_info
>>> video/logo: use %u format specifier for unsigned int values
>>> video/sticore: Remove info field from STI struct
>>> arch/parisc: Detect primary video device from device instance
>>> fbdev/stifb: Allocate fb_info instance with framebuffer_alloc()
>>> video/sticore: Store ROM device in STI struct
>>> fbdev: flush deferred IO before closing
>>> fbdev: flush deferred work in fb_deferred_io_fsync()
>>> fbdev: amba-clcd: Delete the old CLCD driver
>>> fbdev: Remove support for Carillo Ranch driver
>>> fbdev: hgafb: fix kernel-doc comments
>>> fbdev: mmp: Fix typo and wording in code comment
>>> fbdev: fsl-diu-fb: Fix sparse warning due to virt_to_phys() prototype change
>>> fbdev: imxfb: add '*/' on a separate line in block comment
>>> fbdev: imxfb: use __func__ for function name
>>> ...
>>>
>>> Documentation/fb/index.rst | 1 -
>>> Documentation/fb/intelfb.rst | 155 --
>>> Documentation/userspace-api/ioctl/ioctl-number.rst | 1 -
>>> MAINTAINERS | 12 -
>>> arch/parisc/video/fbdev.c | 2 +-
>>> drivers/Makefile | 3 +-
>>> drivers/firmware/sysfb.c | 14 +-
>>> drivers/gpu/drm/hyperv/hyperv_drm_drv.c | 8 +-
>>> drivers/video/backlight/Kconfig | 7 -
>>> drivers/video/backlight/Makefile | 1 -
>>> drivers/video/backlight/cr_bllcd.c | 264 ---
>>> drivers/video/fbdev/Kconfig | 72 -
>>> drivers/video/fbdev/Makefile | 2 -
>>> drivers/video/fbdev/amba-clcd.c | 986 ---------
>>> drivers/video/fbdev/core/fb_defio.c | 8 +-
>>> drivers/video/fbdev/fsl-diu-fb.c | 2 +-
>>> drivers/video/fbdev/hgafb.c | 13 +-
>>> drivers/video/fbdev/hyperv_fb.c | 20 +-
>>> drivers/video/fbdev/imxfb.c | 179 +-
>>> drivers/video/fbdev/intelfb/Makefile | 8 -
>>> drivers/video/fbdev/intelfb/intelfb.h | 382 ----
>>> drivers/video/fbdev/intelfb/intelfb_i2c.c | 209 --
>>> drivers/video/fbdev/intelfb/intelfbdrv.c | 1680 ----------------
>>> drivers/video/fbdev/intelfb/intelfbhw.c | 2115 --------------------
>>> drivers/video/fbdev/intelfb/intelfbhw.h | 609 ------
>>> drivers/video/fbdev/mmp/hw/mmp_spi.c | 2 +-
>>> drivers/video/fbdev/sis/sis_main.c | 37 -
>>> drivers/video/fbdev/stifb.c | 109 +-
>>> drivers/video/fbdev/vermilion/Makefile | 6 -
>>> drivers/video/fbdev/vermilion/cr_pll.c | 195 --
>>> drivers/video/fbdev/vermilion/vermilion.c | 1175 -----------
>>> drivers/video/fbdev/vermilion/vermilion.h | 245 ---
>>> drivers/video/logo/pnmtologo.c | 6 +-
>>> drivers/video/sticore.c | 5 +
>>> include/linux/amba/clcd-regs.h | 87 -
>>> include/linux/amba/clcd.h | 290 ---
>>> include/video/sticore.h | 6 +-
>>> 37 files changed, 208 insertions(+), 8708 deletions(-)
>>> delete mode 100644 Documentation/fb/intelfb.rst
>>> delete mode 100644 drivers/video/backlight/cr_bllcd.c
>>> delete mode 100644 drivers/video/fbdev/amba-clcd.c
>>> delete mode 100644 drivers/video/fbdev/intelfb/Makefile
>>> delete mode 100644 drivers/video/fbdev/intelfb/intelfb.h
>>> delete mode 100644 drivers/video/fbdev/intelfb/intelfb_i2c.c
>>> delete mode 100644 drivers/video/fbdev/intelfb/intelfbdrv.c
>>> delete mode 100644 drivers/video/fbdev/intelfb/intelfbhw.c
>>> delete mode 100644 drivers/video/fbdev/intelfb/intelfbhw.h
>>> delete mode 100644 drivers/video/fbdev/vermilion/Makefile
>>> delete mode 100644 drivers/video/fbdev/vermilion/cr_pll.c
>>> delete mode 100644 drivers/video/fbdev/vermilion/vermilion.c
>>> delete mode 100644 drivers/video/fbdev/vermilion/vermilion.h
>>> delete mode 100644 include/linux/amba/clcd-regs.h
>>> delete mode 100644 include/linux/amba/clcd.h
>>> marvin at defiant:~/linux/kernel/linux_torvalds$
>>>
>>> Hope this helps.
>>
>> P.S.
>>
>> As I see that this is a larger merge commit, with 5K+ lines changed, I don't think I can
>> bisect further to determine the culprit.
>>
>> But I thought later that it would be interesting to see why my hardware triggered the freeze
>> and probably others did not, or someone would complain already.
>>
>> Both of the boxes were AMD Ryzen: Ryzen 7 5700G and Ryzen 9 7950X.
>>
>> FWIW, I am attaching both hardware listings and the config used, so anyone knowledgeable with
>> fbdev could possibly narrow down the search.
>>
>
> Hi Mirsad,
>
> There is another report from Jens with similar symptom [1]. Can you check if
> reverting df67699c9cb0ce ("firmware/sysfb: Clear screen_info state after
> consuming it") fixes your regression?
>
> Thanks.
>
> [1]: https://lore.kernel.org/regressions/93ffd2ee-fa83-4469-96fb-fb263c26bb3c@kernel.dk/T/#t
Thanks, Bagas, I confirm that it is the same issue:
1991 git checkout d97a78423c33
1992 git revert df67699c9cb0ce
1993 make clean; make olddefconfig
1994 time nice make -j 36 bindeb-pkg |& tee ../err-6.8-mrg-1.log; date
1995 sudo apt-get -s install ../linux-image-6.7.0-bagas-vanilla-rvt-09751-g6b082430adc8_6.7.0-09751-g6b082430adc8-26_amd64.deb
1996 sudo apt-get -y install ../linux-image-6.7.0-bagas-vanilla-rvt-09751-g6b082430adc8_6.7.0-09751-g6b082430adc8-26_amd64.deb
Reverting df67699c9cb0ce fixed it.
I don't have a slightest idea what is the side effect of this commit.
Tested-by: Mirsad Goran Todorovac <mirsad.todorovac at alu.unizg.hr>
Best regards,
Mirsad
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