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Re: Filesystem full? I've got 4.2TB free!

On Wed, 22 Apr 2009, Stephen Borrill wrote:
On Wed, 22 Apr 2009, Andy Ruhl wrote:
On Wed, Apr 22, 2009 at 3:11 AM, Stephen Borrill
<> wrote:
Filesystem in question is:

Filesystem  Size Used      Avail %Cap    iUsed   iAvail %iCap Mounted on
/dev/dk0    4.4T  39G       4.2T   0%   224044 592051282   0% /backup

For the heck of it, what does du -sh /backup show?

It's consistent with the size used reported by df.

I've been playing about with more and I'm getting more and more confused now :-/

I can touch /backup/dellboy/foo, but I cannot mkdir /backup/dellboy/foo.
rm -r /backup/dellboy then running rsync to recreate fails again, but not always at the same directory depth

Antti had the great idea of running rump_ffs under gdb and putting a breakpoint on ffs_alloc(). The problem is this clause here:

        if (flags & B_CONTIG) {
                 * XXX ump->um_lock handling is "suspect" at best.
                 * For the case where ffs_hashalloc() fails early
                 * in the B_CONTIG case we reach here with um_lock
                 * already unlocked, so we can't release it again
                 * like in the normal error path.  See kern/39206.
                 * Fail silently - it's up to our caller to report
                 * errors.
                return (ENOSPC);


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