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Bug#1136379: Kernel panic on boot with linux-image-7.0.4+deb14-amd64

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Hi Michael,

On Tue, May 12, 2026 at 08:39:51PM -0400, Michael Greenberg wrote:
> Package: linux-image-7.0.4+deb14-amd64
> Version: 7.0.4-1
> Severity: critical
> 
> On booting the new kernel, my kernel panicked. Here is the message (with
> the kernel boot sequence timestamps elided). NB that this is necessarily
> transcribed, as the fatal error happened when mounting the root VFS (and
> so nothing could be written to disk):
> 
> ```
> ACPI BIOS Error (bug): Failure creating named object
> [\_SB.PC00.RP05.PXSX._DSM], AE_ALREADY_EXISTS (20251212/dswload2-326)
> ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
> (20251212/psobject-220)
> ACPI BIOS Error (bug): Failure creating named object
> [\_SB.PC00.SAT0.PRT0.PWRG], AE_ALREADY_EXISTS (20251212/dswload2-326)
> ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
> (20251212/psobject-220)
> /dev/root: Can't open blockdev
> Lits of all bdev filesystems:
>  fuseblk
> 
> Kernel panic - not syncing: VFS: Unable to mount root fs on
> unknown-block(0,0)
> CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Tainted: G S
> 7.0.4+deb14-amd64 #1 PREEMPTY(lazy) Debian 7.0.4-1
> Tainted: [S]=CPU_OUT_OF_SPEC
> Hardware name: LENOVO 20Y3003XUS/20Y3003XUS, BIOS N40ET38W (1.20 )
> 10/06/2022
> Call Trace:
>  <TASK>
>  dupm_stack_lvl+0x5d/0x80
>  vpanic+0x24b/0x450
>  panic+0x6b/0x70
>  mount_root_generic+0x1cf/0x270
>  prepare_namespace+0x1d1/0x270
>  kernel_init_freeable+0x2f3/0x320
>  ? __pfx_kernel_init+0x10/0x10
>  kernel_init+0x1a/0x130
>  ret_from_fork+0x2c7/0x350
>  ? __pfx_kernel_init+0x10/0x10
>  ret_from_fork_asm+0x1a/0x30
>  </TASK>
> Kernel Offset: 0x13600000 from 0xfffffffff81000000 (relocation range:
> 0xffffffff80000000-0xffffffffbfffffff)
> ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on
> unknown-block(0,0) ]---
> ```
> 
> NB that the first few ACPI messages seem to be benign (they occur with
> 6.x kernels, which boot just fine).

From which version are you upgrading? Did you got errors on generating
the initrd? (can you compare the sizes, show the upgrade log please?)

Regards,
Salvatore

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Bug#1136379: Kernel panic on boot with linux-image-7.0.4+deb14-amd64 Salvatore Bonaccorso <carnil@debian.org> - 2026-05-13 07:00 +0200

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