fcc023545e
address space available to processes. this limit exists in most other modern unix variants, and like most of them, our defaults are unlimited. remove the old mmap / rlimit.datasize hack. - adds the VMCMD_STACK flag to all the stack-creation vmcmd callers. it is currently unused, but was added a few years ago. - add a pair of new process size values to kinfo_proc2{}. one is the total size of the process memory map, and the other is the total size adjusted for unused stack space (since most processes have a lot of this...) - patch sh, and csh to notice RLIMIT_AS. (in some cases, the alias RLIMIT_VMEM was already present and used if availble.) - patch ps, top and systat to notice the new k_vm_vsize member of kinfo_proc2{}. - update irix, svr4, svr4_32, linux and osf1 emulations to support this information. (freebsd could be done, but that it's best left as part of the full-update of compat/freebsd.) this addresses PR 7897. it also gives correct memory usage values, which have never been entirely correct (since mmap), and have been very incorrect since jemalloc() was enabled. tested on i386 and sparc64, build tested on several other platforms. thanks to many folks for feedback and testing but most espcially chuq and yamt for critical suggestions that lead to this patch not having a special ugliness i wasn't happy with anyway :-) |
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README |
$NetBSD: README,v 1.5 2008/10/30 00:27:31 joerg Exp $ Organization of Sources: This directory hierarchy is using an organization that separates source for programs that we have obtained from external third parties (where NetBSD is not the primary maintainer) from the system source. The hierarchy is grouped by license, and then package per license, and is organized as follows: external/ Makefile Descend into the license sub-directories. <license>/ Per-license sub-directories. Makefile Descend into the package sub-directories. <package>/ Per-package sub-directories. Makefile Build the package. dist/ The third-party source for a given package. bin/ lib/ sbin/ BSD makefiles "reach over" from these into "../dist/". This arrangement allows for packages to be easily disabled or excised as necessary, either on a per-license or per-package basis. The licenses currently used are: bsd BSD (or equivalent) licensed software, possibly with the "advertising clause". gpl2 GNU Public License, version 2 (or earlier). intel-fw-oem Intel firmware license with redistribution restricted to OEM. intel-fw-public Intel firmware license permitting redistribution with terms similiar to BSD licensed software. mit MIT (X11) style license. If a package has components covered by different licenses (for example, GPL2 and the LGPL), use the <license> subdirectory for the more restrictive license. If a package allows the choice of a license to use, we'll generally use the less restrictive license. If in doubt about where a package should be located, please contact <core@NetBSD.org> for advice. Migration Strategy: Eventually src/dist (and associated framework in other base source directories) and src/gnu will be migrated to this hierarchy. Maintenance Strategy: The sources under src/external/<license>/<package>/dist/ are generally a combination of a published distribution plus changes that we submit to the maintainers and that are not yet published by them. Make sure all changes made to the external sources are submitted to the appropriate maintainer, but only after coordinating with the NetBSD maintainers.