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Re: kern/47739: tmpfs panic: kernel diagnostic assertion "(node)->tn_spec.tn_dir.tn_readdir_lastp == NULL..."
The following reply was made to PR kern/47739; it has been noted by GNATS.
From: David Holland <dholland-bugs%netbsd.org@localhost>
Subject: Re: kern/47739: tmpfs panic: kernel diagnostic assertion
"(node)->tn_spec.tn_dir.tn_readdir_lastp == NULL..."
Date: Fri, 11 Oct 2013 08:03:11 +0000
On Wed, Oct 09, 2013 at 09:27:38PM +0100, David Laight wrote:
> > Four and a half years ago (in PR 41068) I asked why tmpfs does this
> > nonsense instead of just assigning sequence numbers to each node.
> > Nobody has ever managed to come up with a coherent justification, just
> > FUD.
> If it assigned sequence numbers it would have to check for already used
> values once it had created 2^32 entries (assuming it needs to generate
> 32bit offsets).
... so once you've cycled 2^32 entries through a directory, which is
in general "never", you compact it. Big deal...
David A. Holland
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