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Bug#1141446: linux-image-6.19.8+deb13-amd64: Kernel panic after resuming from hibernation

Cross-posted to 2 groups.

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Control: tags -1 + moreinfo

On Sun, Jul 05, 2026 at 12:03:30AM +0200, Sören König wrote:
> Package: src:linux
> Version: 6.19.8-1~bpo13+1
> Severity: normal
> X-Debbugs-Cc: debian-amd64@lists.debian.org
> User: debian-amd64@lists.debian.org
> Usertags: amd64
> 
> Dear Maintainer,
> 
> * What led up to the situation?
> 
> The machine (ThinkPad T14 Gen 4 AMD, 21K3CTO1WW, BIOS R2FET58W 1.38) was
> hibernated (suspend-to-disk) after roughly 8.8 hours of uptime. On the
> following boot I resumed from the hibernation image.
> 
> * What exactly did you do (or not do) that was effective (or ineffective)?
> 
> Nothing unusual: a regular hibernate/resume cycle, as I do routinely on
> this machine. Resume from hibernation has otherwise been working with
> this kernel.
> 
> * What was the outcome of this action?
> 
> The resume itself completed, but shortly afterwards the kernel panicked
> ("Fatal exception in interrupt") in an EFI runtime services call and the
> machine froze. The Oops shows a supervisor instruction fetch from an
> unmapped page (PTE 0) at RIP 0xfffffffed6fe0468, i.e. inside the EFI
> runtime services virtual mapping region rather than kernel text. The
> faulting task was a kworker on the efi_rts_wq workqueue running
> efi_call_rts, and immediately afterwards efi_pstore failed with
> "pstore: backend (efi_pstore) writing error (-16)", so the crashing call
> was most likely a SetVariable invocation on behalf of efi-pstore.
> 
> * What outcome did you expect instead?
> 
> A normal resume from hibernation without a kernel panic; at worst a
> disabled EFI runtime services interface (efi=noruntime-like behaviour)
> rather than a fatal exception.
> 
> Additional notes:
> 
> - This has happened once so far. I will report back if it recurs.
> - Note the panic occurred on linux-image-6.19.8+deb13-amd64
>   (6.19.8-1~bpo13+1, trixie-backports); the reportbug run below was made
>   from a newer kernel (7.0.9+deb13-amd64), so the "Kernel:" line in the
>   system information does not reflect the kernel that crashed.
> - Hibernation is set up with swap on dm-crypt (dm_crypt/md in use, see
>   module list in the Oops).

If things are happening only once then we cannot really help. But two
things:

- Upgrade to the most recent kernel possible. This is for now
  7.0.12-2~bpo13+1 in trixie-backports.

- Run a memory test, as there might be some indication of defective
  memory.

For now I tag the bug moreinfo, please report back if you re-encounter
the issue.

Regards,
Salvatore

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Bug#1141446: linux-image-6.19.8+deb13-amd64: Kernel panic after resuming from hibernation Salvatore Bonaccorso <carnil@debian.org> - 2026-07-05 09:10 +0200

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