Believed fixed (was: Re: Another panic (during netisr?))

Robert Watson rwatson at
Tue Nov 3 08:08:16 UTC 2009

On Tue, 3 Nov 2009, Ian Freislich wrote:

> Robert Watson wrote:
>> Since debugging this went offline, the quick summary for the list is: it 
>> looks like a race condition in the read-write locking for tcbinfo in 
>> 8.x/9.x was responsible, and I've now committed a fix to head and merged to 
>> stable/8 this morning.  If this recurs with the fix, please let me know, 
>> because that would mean we fixed the wrong bug. :-)
> Since this I've not had a panic on our routers in the last 25 days. Before, 
> it would panic about every 5 days with a corrupted stack.

Sounds good, thanks!

Robert N M Watson
Computer Laboratory
University of Cambridge

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