svn commit: r206129 - head/sys/kern
Kostik Belousov
kostikbel at gmail.com
Sun Apr 4 21:27:51 UTC 2010
On Mon, Apr 05, 2010 at 12:11:06AM +0300, Andriy Gapon wrote:
> on 05/04/2010 00:03 Peter Jeremy said the following:
> > On 2010-Apr-03 08:39:00 +0000, Andriy Gapon <avg at FreeBSD.org> wrote:
> >> Author: avg
> >> Date: Sat Apr 3 08:39:00 2010
> >> New Revision: 206129
> >> URL: http://svn.freebsd.org/changeset/base/206129
> >>
> >> Log:
> >> vn_stat: take into account va_blocksize when setting st_blksize
> >>
> >> As currently st_blksize is always PAGE_SIZE, it is playing safe to not
> >> use any smaller value. For some cases this might not be optimal, but
> >> at least nothing should get broken.
> >
> > I haven't verified it but, based on a quick look at the change, I
> > suspect this will trigger the problem in bin/144446. Quick summary:
> > db(3) has restrictions on its internal bucket size but initializes it
> > from st_blksize with no sanity checking and ZFS can report blocksizes
> > outside the allowed bucket size range for db(3).
> >
>
> Thank you for pointing this out.
> If no one objects or provides a better patch, I will commit yours.
I do not think this is very satisfying solution. Pre-patched libc
still suffer from the problem. You cannot run stable/8 libc on this
kernel.
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