Comment 5 for bug 1441930
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| Mauricio Faria de Oliveira (mfo) wrote | #5 |
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bbfa235
(Get the code!)
I incorrectly mentioned LVM was also affected by the issue.
It doesn't, as the dm mappings are the LVs mapped on top of VGs, which already take sectors as 512B AFAICT.
The issue arises w/ multipath because then the partitions are mapped directly on top of the underlying devices, which have 4k sectors. Since the values being passed to libdevmapper should be in 512b sectors, if there's no multiplier of 4k/512 there, things go wrong. :)