[tor-dev] [tor-relays] [warn] No unused circIDs found on channel without wide circID support

ra r.a at posteo.net
Mon Sep 29 14:18:40 UTC 2014

reply-to: tor-dev

On Monday 29 September 2014 15:00:29 tor-admin wrote:
> since upgrading torland to I see the below warnings. Is this
> something to worry about?

IMHO this might be due to a programming error in the circuit ID selection code 
or possibly indicate a DoS attack. 

> --------------------------------------------------------------------------
> Sep 28 16:07:24.000 [warn] No unused circIDs found on channel without wide
> circID support, with 0 inbound and 4 outbound circuits. Found 0 circuit IDs
> in use by circuits, and 64 with pending destroy cells. (0 of those were
> marked bogusly.) The ones with pending destroy cells have been marked
> unusable for an average of 7594 seconds and a maximum of 16137 seconds.
> This channel is 18469 seconds old. Failing a circuit.
> Sep 28 16:07:24.000 [warn]   Circuitmux on this channel has 4 circuits, of
> which 4 are active. It says it has 29535 destroy cells queued.

Those lines are important. I would suggest opening a ticket on trac. See 

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 163 bytes
Desc: This is a digitally signed message part.
URL: <http://lists.torproject.org/pipermail/tor-dev/attachments/20140929/307b2131/attachment.sig>

More information about the tor-dev mailing list