Difference between FreeBSD-7 and FreeBSD-8 in tasting?

Lev Serebryakov lev at serebryakov.spb.ru
Tue Aug 18 07:38:37 UTC 2009

Hello, Lev.
You wrote 18 августа 2009 г., 02:59:41:

>   I'm porting geom_raid5 to FreeBSD8, and have strange problem: when
> module is loaded after system start (with kldload) it tastes its
> consumers (configured early) and creates array.
>   When it is loaded on boot time (with /boot/loader.conf), it doesn't
> see array components at all, as if taste is not called...
>   It works on FreeBSD7 flawless in both cases...
>   I've changed only two things:
>     (1) allow root_mount_hold() tocken to be NULL
>     (2) change working thread creation from kthread_create() to kproc_kthread_add().
>  What are other differences in GEOM between 7 and 8?
  I've found problem. geom_raid5 check cp->provider->sectorsize before
g_access() call, and on boot it is zero before g_access() and 512
(which is proper value) after this call.

// Black Lion AKA Lev Serebryakov <lev at serebryakov.spb.ru>

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