[BUG][BISECTED] Freeze at loading init ramdisk

From: Mirsad Todorovac
Date: Mon Jan 15 2024 - 20:14:35 EST

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@defiant:~/linux/kernel/linux_torvalds$ git bisect good
d97a78423c33f68ca6543de510a409167baed6f5 is the first bad commit
commit d97a78423c33f68ca6543de510a409167baed6f5
Merge: 61da593f4458 689237ab37c5
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
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@defiant:~/linux/kernel/linux_torvalds$

Hope this helps.

Best regards,
Mirsad Todorovac

Attachment: config-6.7.0-initrd-02743-gca6c080eef42.xz
Description: application/xz