Date: Wed, 30 Apr 1997 08:01:22 +1000 (EST) From: Peter Jeremy <peter.jeremy@alcatel.com.au> To: freebsd-stable@freefall.FreeBSD.ORG Subject: Swap leaks (was Re: Memory usage on NFS server) Message-ID: <199704292201.IAA11983@gsms01.alcatel.com.au>
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On Tue, 29 Apr 1997 10:03:57 +0200 (SAT), John Hay <jhay@zibbi.mikom.csir.co.za> wrote: > Inn then typically show a usage of >~70M according to top, but as soon as I kill and restart it the swap >usage go down to ~5M. Some of the BSD/386-derived Unices have a memory leak in the VM subsystem which matches the above behaviour: When a process fork()d whilst the system was paging, swap space allocated to the child was not released until the _parent_ exit()d. This primarily bit long- running daemons that fork() regularly: cron, inetd, innd and sendmail. I thought FreeBSD 2.1 and 2.2 included fixes for this VM problem. Can someone please confirm this. (In which case John's problem is something else). Peter -- Peter Jeremy (VK2PJ) peter.jeremy@alcatel.com.au Alcatel Australia Limited 41 Mandible St Phone: +61 2 9690 5019 ALEXANDRIA NSW 2015 Fax: +61 2 9690 5247
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