[Bug 288881] ZFS checksum error at `software' level
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Date: Sat, 16 Aug 2025 15:32:46 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=288881
--- Comment #8 from dirkx@webweaving.org ---
(In reply to Alan Somers from comment #7)
Thanks - will do (openzfs)
As to zdb -R -- i am strugging to get the spec right on
$ sudo zdb -R -vvv zroot ada0p3:1793168560128:32768
Invalid block specifier: ada0p3:1793168560128:32768
- offset must be a multiple of sector size
While 1793168560128 is a nice multiple of 256, 512, 1024, 2048 and 4096 ; (and
the size is 64x1024) -- I keep getting the error that the offset and the size
are not a multiple of the sector size.
Rounding to 64k too:
$ sudo zdb -R -vvv zroot 3:1793168539648:32768
Invalid block specifier: 3:1793168539648:32768
- offset must be a multiple of sector size
But as I get:
$ sudo zdb zroot | grep ashift
zroot ashift 0 default
$ sudo gpart list ada0
...
Sectorsize: 512
Stripesize: 4096
..
I am assuming the default to match the underlaying disks.
$ sudo zdb -R -vvv zroot ada0p3:0:4096
Invalid block specifier: ada0p3:0:4096 - size must be a multiple of
sector size
Invalid block specifier: ada0p3:0:16384 - size must be a multiple of
sector size
Invalid block specifier: ada0p3:0:32768 - size must be a multiple of
sector size
But no cookie.
I suspect I am not understanding how the command is to work or what my sector
sized is.
So suspect that I am not understanding this well enough.
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