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Date: Wed, 17 Jan 2024 19:47:49 +0100 From: Mirsad Todorovac <mirsad.todorovac@....unizg.hr> To: Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Cc: Helge Deller <deller@....de>, "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>, Uwe Kleine-König <u.kleine-koenig@...gutronix.de>, Ard Biesheuvel <ardb@...nel.org>, Arnd Bergmann <arnd@...db.de>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Hans de Goede <hdegoede@...hat.com>, Huacai Chen <chenhuacai@...nel.org>, Javier Martinez Canillas <javierm@...hat.com>, Linus Walleij <linus.walleij@...aro.org>, Prathu Baronia <prathubaronia2011@...il.com>, Sam Ravnborg <sam@...nborg.org>, Sui Jingfeng <suijingfeng@...ngson.cn>, Thomas Zimmermann <tzimmermann@...e.de>, dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org, linux-parisc@...r.kernel.org Subject: Re: [BUG][BISECTED] Freeze at loading init ramdisk 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@...iant:~/linux/kernel/linux_torvalds$ git bisect good > d97a78423c33f68ca6543de510a409167baed6f5 is the first bad commit > commit d97a78423c33f68ca6543de510a409167baed6f5 > Merge: 61da593f4458 689237ab37c5 > Author: Linus Torvalds <torvalds@...ux-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@...iant:~/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. Best regards, Mirsad Todorovac View attachment "lshw.txt" of type "text/plain" (58568 bytes) View attachment "lshw-ryzen-7.txt" of type "text/plain" (38850 bytes) Download attachment "config-6.7.0-initrd-02743-gca6c080eef42.xz" of type "application/x-xz" (58588 bytes)
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