[Bug 2125496] [NEW] z3fold no longer exists; use zsmalloc instead

Dave Jones 2125496 at bugs.launchpad.net
Tue Sep 23 12:18:19 UTC 2025


Public bug reported:

The z3fold module no longer exists in kernel 6.17 (causing errors in the
kernel dmesg output); zsmalloc is the replacement. This will also need a
corresponding change in the kernel cmdline in the pi-gadget repo.

** Affects: ubuntu-raspi-settings (Ubuntu)
     Importance: Medium
     Assignee: Dave Jones (waveform)
         Status: Triaged

** Description changed:

- The z3fold module no longer exists in kernel 6.17; zsmalloc is the
- replacement. This will also need a corresponding change in the kernel
- cmdline in the pi-gadget repo.
+ The z3fold module no longer exists in kernel 6.17 (causing errors in the
+ kernel dmesg output); zsmalloc is the replacement. This will also need a
+ corresponding change in the kernel cmdline in the pi-gadget repo.

** Changed in: ubuntu-raspi-settings (Ubuntu)
   Importance: Undecided => Medium

** Changed in: ubuntu-raspi-settings (Ubuntu)
       Status: New => Triaged

** Changed in: ubuntu-raspi-settings (Ubuntu)
     Assignee: (unassigned) => Dave Jones (waveform)

** Changed in: ubuntu-raspi-settings (Ubuntu)
    Milestone: None => ubuntu-25.10

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https://bugs.launchpad.net/bugs/2125496

Title:
  z3fold no longer exists; use zsmalloc instead

Status in ubuntu-raspi-settings package in Ubuntu:
  Triaged

Bug description:
  The z3fold module no longer exists in kernel 6.17 (causing errors in
  the kernel dmesg output); zsmalloc is the replacement. This will also
  need a corresponding change in the kernel cmdline in the pi-gadget
  repo.

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