On Sat, Jan 01, 2011 at 02:54:48PM +0000, Douglas Held wrote: > I've installed OpenBSD 4.7, i386 in a VMWare virtual machine with 3GB RAM. > > I find I can't allocate more than 1GB to any process as root. ksh > ulimit builtin provides me this when I try to set the hard limit > unlimited.
1GB is the hard limit in the kernel (for i386). There are a number of factors that play into this, the limitations of i386 with W^X, address space randomisation, space for mmap, etc. Basically the price you pay for OpenBSDs "invisible" security features. There are some recent patches on tech@ that raise the limit a bit, iirc. > > Even so, when I set the hard and soft limits for, say, 'ulimit -d' as > root and then su my application user, the specified limit is > unattainable. > > # ulimit -d > 1048576 > # ulimit -Hd unlimited > # ulimit -d unlimited > # ulimit -d > 1048576 > # su - xyz > $ ulimit -d > 524288 > $ ulimit -d 1024575 > ksh: ulimit: exceeds allowable limit > > Other operating systems have a configuration such as > /etc/security/limits.conf. What is the equivalent in OpenBSD? > > > -- > Douglas Held > [email protected] > +447986527654
