On 01/11/16 09:32, Roger Pau Monné wrote:
> El 11/01/16 a les 7.47, Colin Percival ha escrit:
>> I'm rather suspicious of r292255 here -- royger, hps, kib, can any of you
>> comment on whether it would be responsible for making non-page-aligned I/Os
>> no longer get split on page boundaries?  The commit message is suggestive,
>> but I don't know the code very well.
> This is caused by r291716

Agreed.  Sorry for pointing at the wrong busdma change.

> which re-introduced the broken mechanism
> found in bus_dmamap_load_ma_triv. I've already notified ken about it,
> and I have a patch that should solve it by reverting to the usage of
> _bus_dmamap_load_ma in order to load an unmapped bio:
> https://lists.freebsd.org/pipermail/svn-src-all/2016-January/116629.html

Ken replied shortly after the Europe -> North America "shift change", so I
took the liberty of committing this fix (after doing further testing myself)
as r293698.

Thank you!

Colin Percival
Security Officer Emeritus, FreeBSD | The power to serve
Founder, Tarsnap | www.tarsnap.com | Online backups for the truly paranoid
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