Re: UFS s_maxbytes bogosity

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On Fri, 9 Jun 2017, Al Viro wrote:

On Thu, Jun 08, 2017 at 05:11:39PM -0700, Richard Narron wrote:

Test results don't look pretty on FreeBSD.  (I will also test OpenBSD and
NetBSD.)

OK, here's the cumulative diff so far - easy-to-backport parts only; that'll
be split into 6 commits (plus whatever else gets added).   It really needs
beating...

This looks much better.

The Linux "df ." test looks good.  No more missing 32k.

cd /fbsdd
#df .
Filesystem     1K-blocks  Used Available Use% Mounted on
/dev/sda18      20307184     8  18682632   1% /fbsdd
#mkdir a
#rmdir a
#df .
Filesystem     1K-blocks  Used Available Use% Mounted on
/dev/sda18      20307184     8  18682632   1% /fbsdd

And the FreeBSD "fsck" looks good:
 # fsck -f ada0s2d
** /dev/ada0s2d
** Last Mounted on
** Phase 1 - Check Blocks and Sizes
** Phase 2 - Check Pathnames
** Phase 3 - Check Connectivity
** Phase 4 - Check Reference Counts
** Phase 5 - Check Cyl groups
2 files, 2 used, 5076794 free (26 frags, 634596 blocks, 0.0% fragmentation)
***** FILE SYSTEM IS CLEAN *****




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