squid-1.NOVM.21: FATAL: Somebody is putting a NULL pointer!

I just tried 1.NOVM.21 on my own workstation, and it installed and ran fine
(as usual). So I installed it on our main cache, but it refuses to
start with:

        FATAL: Somebody is putting a NULL pointer!

I backed down to 1.NOVM.20 and everything is fine again. The problem is
that I cannot use this production cache to run tests on, so before I go
read the 20 -> 21 patch and debug stuff, I thought I'd ask here first
to see if anyone else has already noticed this.

Linux 2.0.33
GNU libc 2.0.6 (also tried 2.0.7pre1)

Mike.

-- 
 Miquel van Smoorenburg |  
    miquels@cistron.nl  |  Luck is when preparation meets opportunity