Validated on a Jammy VM with the HWE kernel, according to the Test Plan
from the description. With arc_summary from jammy-proposed, everything
works correctly on both the GA and HWE kernels:
root@halves-jammy:~# apt policy zfsutils-linux
zfsutils-linux:
Installed: 2.1.5-1ubuntu6~22.04.6
Candidate: 2.1.5-1ubuntu6~22.04.6
Version table:
*** 2.1.5-1ubuntu6~22.04.6 500
500 http://archive.ubuntu.com/ubuntu jammy-proposed/main amd64 Packages
100 /var/lib/dpkg/status
2.1.5-1ubuntu6~22.04.5 500
500 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages
2.1.5-1ubuntu6~22.04.4 500
500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
2.1.2-1ubuntu3 500
500 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages
root@halves-jammy:~# uname -rv
6.8.0-60-generic #63~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Tue Apr 22 19:00:15 UTC
2
root@halves-jammy:~# arc_summary
------------------------------------------------------------------------
ZFS Subsystem Report Thu Jul 03 12:44:28 2025
Linux 6.8.0-60-generic 2.2.2-0ubuntu9.2
Machine: halves-jammy (x86_64) 2.2.2-0ubuntu9.2
ARC status: HEALTHY
Memory throttle count: 0
...
...
...
ZIL committed transactions: 0
Commit requests: 0
Flushes to stable storage: 0
Transactions to SLOG storage pool: 0 Bytes 0
Transactions to non-SLOG storage pool: 0 Bytes 0
root@halves-jammy:~#
** Tags removed: verification-needed verification-needed-jammy
** Tags added: verification-done verification-done-jammy
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https://bugs.launchpad.net/bugs/1980848
Title:
arc_summary doesn't work with HWE kernel
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