[Bug 2103798] Re: go backtrace during boot, can't boot

[Andreas Hasenack]

Here is a diff between my working[1] and broken[2] initrd:

--- /dev/fd/63	2025-03-25 06:30:09.440174979 -0300
+++ /dev/fd/62	2025-03-25 06:30:09.441174986 -0300
@@ -107,33 +107,10 @@
 usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/display
 usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/display/drm_display_helper.ko.zst
 usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/drm_buddy.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/drm_dma_helper.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/drm_mipi_dbi.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/drm_ttm_helper.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/drm_vram_helper.ko.zst
 usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/i915
 usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/i915/i915.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/tiny
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/tiny/bochs.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/tiny/cirrus-qemu.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/tiny/gm12u320.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/tiny/hx8357d.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/tiny/ili9163.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/tiny/ili9225.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/tiny/ili9341.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/tiny/ili9486.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/tiny/mi0283qt.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/tiny/panel-mipi-dbi.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/tiny/repaper.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/tiny/sharp-memory.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/tiny/st7586.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/tiny/st7735r.ko.zst
 usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/ttm
 usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/ttm/ttm.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/vboxvideo
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/vboxvideo/vboxvideo.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/virtio
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/gpu/drm/virtio/virtio-gpu.ko.zst
 usr/lib/modules/6.14.0-11-generic/kernel/drivers/hid
 usr/lib/modules/6.14.0-11-generic/kernel/drivers/hid/amd-sfh-hid
 usr/lib/modules/6.14.0-11-generic/kernel/drivers/hid/amd-sfh-hid/amd_sfh.ko.zst
@@ -554,8 +531,6 @@
 usr/lib/modules/6.14.0-11-generic/kernel/drivers/video
 usr/lib/modules/6.14.0-11-generic/kernel/drivers/video/backlight
 usr/lib/modules/6.14.0-11-generic/kernel/drivers/video/backlight/lcd.ko.zst
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/virtio
-usr/lib/modules/6.14.0-11-generic/kernel/drivers/virtio/virtio_dma_buf.ko.zst
 usr/lib/modules/6.14.0-11-generic/kernel/drivers/watchdog
 usr/lib/modules/6.14.0-11-generic/kernel/drivers/watchdog/acquirewdt.ko.zst
 usr/lib/modules/6.14.0-11-generic/kernel/drivers/watchdog/advantech_ec_wdt.ko.zst


1. sudo dracut --force --add-drivers "=drivers/gpu/drm/tiny vboxvideo virtio-gpu"
2. sudo dracut --force

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https://bugs.launchpad.net/bugs/2103798

Title:
  go backtrace during boot, can't boot

Status in dracut package in Ubuntu:
  New

Bug description:
  I'm using dracut with plucky. When I reboot, I briefly see the
  passphrase prompt for the disk encryption, but I don't have time to
  type it completely. Midtype, the screen gets filled with a golang
  backtrace, and boot stops.

  The only way to boot this system (that I have found) is to edit the
  grub entry and remove "quiet splash".

  ProblemType: Bug
  DistroRelease: Ubuntu 25.04
  Package: dracut 106-2ubuntu3
  ProcVersionSignature: Ubuntu 6.14.0-11.11-generic 6.14.0-rc7
  Uname: Linux 6.14.0-11-generic x86_64
  NonfreeKernelModules: zfs
  ApportVersion: 2.32.0-0ubuntu2
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Mar 21 09:20:23 2025
  DracutModulesPackages: dracut-core 106-2ubuntu3
  InstallationDate: Installed on 2024-05-20 (305 days ago)
  InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
  PackageArchitecture: all
  SourcePackage: dracut
  UpgradeStatus: Upgraded to plucky on 2025-02-09 (40 days ago)

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