Dave Hansen wrote: > On Tue, 2006-10-31 at 11:48 +0300, Pavel Emelianov wrote: >> If memory is considered to be unreclaimable then actions should be >> taken at mmap() time, not later! Rejecting mmap() is the only way to >> limit user in unreclaimable memory consumption. > > I don't think this is necessarily true. Today, if a kernel exceeds its > allocation limits (runs out of memory) it gets killed. Doing the > limiting at mmap() time instead of fault time will keep a sparse memory > applications from even being able to run.
If limiting _every_ mapping it will, but when limiting only "private" mappings - no problems at all. BC code lives for more than 3 years already and no claims from users on this question yet. > Now, failing an mmap() is a wee bit more graceful than a SIGBUS, but it > certainly introduces its own set of problems. > > -- Dave > > ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ ckrm-tech mailing list https://lists.sourceforge.net/lists/listinfo/ckrm-tech
