Date: Sat, 05 May 2007 19:12:09 +0200 From: Martin Hudec <corwin@aeternal.net> To: freebsd-stable@freebsd.org Subject: Re: swap zone exhausted, increase kern.maxswzone Message-ID: <463CBAE9.1080803@aeternal.net> In-Reply-To: <F7A69B1C2C53E12D2A2DCB1A@ganymede.hub.org> References: <5580F93A753EBAEF71B41EE7@ganymede.hub.org> <20070505160655.GA847@xor.obsecurity.org> <F7A69B1C2C53E12D2A2DCB1A@ganymede.hub.org>
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Marc G. Fournier wrote: > Apparently that doesn't exist on 6-STABLE, although its generating the error? > > # sysctl kern.maxswzone > sysctl: unknown oid 'kern.maxswzone' As in /usr/src/sys/conf/NOTES: ... # 2. In /boot/loader.conf, set the tunables kern.maxswzone, # kern.maxbcache, kern.maxtsiz, kern.dfldsiz, kern.maxdsiz, # kern.dflssiz, kern.maxssiz and kern.sgrowsiz. ... As in man loader: kern.maxswzone Limits the amount of KVM to be used to hold swap meta information, which directly governs the maximum amount of swap the system can support. This value is specified in bytes of KVA space and defaults to around 70MBytes. Care should be taken to not reduce this value such that the actual amount of configured swap exceeds 1/2 the kernel- supported swap. The default 70MB allows the kernel to sup- port a maximum of (approximately) 14GB of configured swap. Only mess around with this parameter if you need to greatly extend the KVM reservation for other resources such as the buffer cache or NMBCLUSTERS. Modifies VM_SWZONE_SIZE_MAX. Also check -hackers maillist for following and the replies: http://lists.freebsd.org/pipermail/freebsd-hackers/2007-January/019217.html Martin
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