On Wed, Apr 28, 2004 at 02:40:38PM -0700, John Uhlig wrote:On the web, freebsd mailing lists and bug lists, I have seen existing thread about "kmem_malloc and kmem_map too small" problems - but no evidence of a fix or patch. We experienced the same problem running 4.9 but were able to fix it by setting the MAXMEM option in our kernel conf file to a value 1GB less than actual physical memory size. This does not help with 5.2.1-RELEASE-p5.
See PR 53416. You just need to tune your kernel resource allocation to deal with the large amount of memory your system has.
I recently enquired about advice for this exact situation on -current (see http://lists.freebsd.org/pipermail/freebsd-current/2004-April/ 026065.html), but didn't really get any.
The PR does not give advice on which parameters in which way, or list a solution. My own experimentation has been inconclusive; the machine still panics when running the daily scripts. I'm running a cron job every minute to record various vm statistics now; hopefully this will give me further pointers.
How does PAE affect this? My box has 6 GB, but I have disabled PAE for the moment.
And just for clarification: the panic is with basically no load, just some file system pressure (two jails running the daily scripts); otherwise, the machine is unused.
Stefan
-- Stefan Bethke <[EMAIL PROTECTED]> Fon +49 170 346 0140
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