Workaround issue of Linux vdev_disk.c #16678
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in some cases not linearizing buffers with disk sector crossing a page boundary. It is fine for hardware, but somehow required by LUKS. It is not typical for ZFS to produce such buffers, but it may happen if 6KB block is compressed to 4KB, while still having 2KB alignment. Banning the 6KB buffers helps vdevs with ashifh=12. Signed-off-by: Alexander Motin <[email protected]> Sponsored by: iXsystems, Inc.
tonyhutter
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Oct 23, 2024
This was referenced Oct 23, 2024
mcmilk
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Oct 23, 2024
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There is a typo in the comment:
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You are right, within the comment :-( |
Another reason to remove all the workaround sooner. ;) |
robn
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Now that we can handle these different alignments, we don't this workaround. This reverts commit aefc2da. Sponsored-by: Klara, Inc. Sponsored-by: Wasabi Technology, Inc. Signed-off-by: Rob Norris <[email protected]>
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robn
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Now that we can handle these different alignments, we don't this workaround. This reverts commit aefc2da. Sponsored-by: Klara, Inc. Sponsored-by: Wasabi Technology, Inc. Signed-off-by: Rob Norris <[email protected]>
robn
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Now that we can handle these different alignments, we don't this workaround. This reverts commit aefc2da. Sponsored-by: Klara, Inc. Sponsored-by: Wasabi Technology, Inc. Signed-off-by: Rob Norris <[email protected]>
robn
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Now that we can handle these different alignments, we don't this workaround. This reverts commit aefc2da. Sponsored-by: Klara, Inc. Sponsored-by: Wasabi Technology, Inc. Signed-off-by: Rob Norris <[email protected]>
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behlendorf
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Nov 1, 2024
Now that we can handle these different alignments, we don't this workaround. This reverts commit aefc2da. Sponsored-by: Klara, Inc. Sponsored-by: Wasabi Technology, Inc. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Alexander Motin <[email protected]> Reviewed-by: Tony Hutter <[email protected]> Signed-off-by: Rob Norris <[email protected]> Closes #16687
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in some cases not linearizing buffers with disk sector crossing a page boundary. It is fine for hardware, but somehow required by LUKS. It is not typical for ZFS to produce such buffers, but it may happen if 6KB block is compressed to 4KB, while still having 2KB alignment. Banning the 6KB buffers helps vdevs with ashift=12.
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