I've validated this on noble using the same server as before, since I
had a zpool snapshot that reliably reproduces this issue. I left the
zfs_write_unified.py script running for around an hour, and everything
looks good. No hangs or kernel spews were detected.
ubuntu@wringer-wooster:~$ apt policy zfs-dkms
zfs-dkms:
Installed: 2.2.2-0ubuntu9.4
Candidate: 2.2.2-0ubuntu9.4
Version table:
*** 2.2.2-0ubuntu9.4 100
100 http://archive.ubuntu.com/ubuntu noble-proposed/universe amd64
Packages
100 /var/lib/dpkg/status
2.2.2-0ubuntu9.3 500
500 http://archive.ubuntu.com/ubuntu noble-updates/universe amd64
Packages
2.2.2-0ubuntu9 500
500 http://archive.ubuntu.com/ubuntu noble/universe amd64 Packages
ubuntu@wringer-wooster:~$ zfs version
zfs-2.2.2-0ubuntu9.4
zfs-kmod-2.2.2-0ubuntu9.4
ubuntu@wringer-wooster:~$ zpool iostat
capacity operations bandwidth
pool alloc free read write read write
---------- ----- ----- ----- ----- ----- -----
pooltest 6.23T 777G 1 721 51.7K 16.8M
** Tags added: verification-done-no verification-needed
** Tags removed: verification-done-no
** Tags added: verification-done-noble verification-needed-jammy
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https://bugs.launchpad.net/bugs/2115683
Title:
ZFS hangs when writing to pools with high object count
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