This question belongs on squid-users, not squid-dev. On Wed, 10 Aug 2005, joaoBR wrote:
I get this on freebsd 4.11, 5.2.1 and 5.4 and squid2.5-10 and greater Happens when the hardcoded mxdsize of 512MB is reached then the xmalloc: unable message appears and squid crashes. Squid do not use any swap it simply crashes and it does not matter how much RAM the machine may have. Soon I set maxdsiz to any value higher the 512 squid do not crash anymore and start using swap when not enough RAM available. So I wonder what is reason and like to ask if you have some ideas about this.
See the Squid FAQ, both the entry on the error message quoted and the chapter on how Squid uses memory.
Regards Henrik