On Sat, 18 Oct 2003, Yaoping Ruan wrote: > Hi: > > I installed the 4.8 release on a new box with 4GB memory, and found > kernel panic when I tried to write date. But the system run great with > only 2GB memory. Is there any kernel compiling option in the LINT, like > the "high mem" option in Linux? > > BTW, we also tried 4.6 release, didn't have this problem but had some > different issues.
Some of the kernel autoscaling values may be off with 4GB machines; I believe that this has been fixed with 4.9, so running 4.9-RC3 might be the easiest answer. Alternately, try the following: 1. Check the mailing list archives, there might be a better explanation than I'm about to give. 2. Play with the amount of memory available using the hw.physmem tunable in loader.conf; you can set to to intermediate values, such as 3G, etc. 3. Tweak the tunable kern.vm.kmem.size upwards, it defaults to 200M, which is probably too small for a 4G machine; try 300 or 400M. Don't worry about PAE, that's only needed if you have _more_ than 4G of ram. Mike "Silby" Silbersack _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
