I applied zfs_fallocate_reserve_percent=0 to the kernel module, confirmed it was set, but I still see the same incorrect behavior with fallocate:
root@nsn7:/tank/test# rm -f foo.img; touch foo.img; fallocate -z -l 10M foo.img; ls -lah foo.img -rw-r--r-- 1 root root 0 abr 19 10:35 foo.img root@nsn7:/tank/test# uname -a Linux nsn7 5.15.0-25-generic #25-Ubuntu SMP Wed Mar 30 15:54:22 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux root@nsn7:/tank/test# cat /sys/module/zfs/parameters/zfs_fallocate_reserve_percent 0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1969247 Title: fallocate with FALLOC_FL_ZERO_RANGE produces zero-size files on zfs in Jammy To manage notifications about this bug go to: https://bugs.launchpad.net/zfs/+bug/1969247/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
