On Sun, May 24 2026, Yifei Chu wrote:
> Hello,
>
> Short version: I found that the same memfd can be preserved more than once in
> a single liveupdate session under different
> tokens. After kexec, those tokens can both refer to the same preserved KHO
> folio, and the second restore path hits
> kho_restore_page(). With panic_on_warn=1, this is a reproducible panic.
Pasha fixed this with 00d0b372374f ("liveupdate: prevent double
management of files"). It landed in v7.1-rc1.
Since you seem to be using 7.0.9, please port this patch to the 7.0.y
series and try again. If this fixes the problem, please send it to
[email protected] so it can be included in the 7.0.y series.
--
Regards,
Pratyush Yadav
