https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=285681

--- Comment #29 from commit-h...@freebsd.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=a319ba694538a38429115aaaf1d4b3946ea3a8b5

commit a319ba694538a38429115aaaf1d4b3946ea3a8b5
Author:     Mark Johnston <ma...@freebsd.org>
AuthorDate: 2025-03-31 10:45:14 +0000
Commit:     Mark Johnston <ma...@freebsd.org>
CommitDate: 2025-03-31 11:14:42 +0000

    hyperv/storvsc: Fix busdma constraints

    - The BUS_DMA_KEEP_PG_OFFSET flag is needed, since
      storvsc_xferbuf_prepare() assumes that only the first segment may have
      a non-zero offset, and that all following segments are page-sized and
      -aligned.
    - storvsc_xferbuf_prepare() handles 64-bit bus addresses, so avoid
      unneeded bouncing on i386.

    PR:             285681
    Reported by:    dim
    Tested by:      dim, whu
    MFC after:      2 weeks

 sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

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