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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>
Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
netbsd-bugs%netbsd.org@localhost, Thomas Klausner
Subject: Re: kern/47739: tmpfs panic: kernel diagnostic assertion
"(node)->tn_spec.tn_dir.tn_readdir_lastp == NULL..."
Date: Mon, 7 Oct 2013 07:42:23 +0000
On Thu, Aug 08, 2013 at 08:30:01PM +0000, Mindaugas Rasiukevicius wrote:
> > Can someone please take a look?
almost certainly the same as 47480 (and 41068)
> > Thomas
> Most likely this is due to tmpfs_dircookie() truncation here:
> It is wrong and there are other PRs because of it. Thomas, you can test
> this by replacing the function body with the following:
> return (off_t)(uintptr_t)de;
> This breaks linux32 compat, but we really just need to decide how we want
> to fix it (it would be good to avoid penalising the native code, but better
> to penalise than fail).
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
David A. Holland
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