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PR/7897 CVS commit: src

The following reply was made to PR kern/7897; it has been noted by GNATS.

From: matthew green <>
Subject: PR/7897 CVS commit: src
Date: Sun, 29 Mar 2009 01:02:51 +0000

 Module Name:   src
 Committed By:  mrg
 Date:          Sun Mar 29 01:02:51 UTC 2009
 Modified Files:
        src/bin/csh: csh.1 func.c
        src/bin/ps: print.c ps.c
        src/bin/sh: miscbltin.c sh.1
        src/external/bsd/top/dist/machine: m_netbsd.c
        src/lib/libkvm: kvm_proc.c
        src/sys/arch/mips/mips: cpu_exec.c
        src/sys/compat/darwin: darwin_exec.c
        src/sys/compat/ibcs2: ibcs2_exec.c
        src/sys/compat/irix: irix_resource.c
        src/sys/compat/linux/arch/amd64: linux_exec_machdep.c
        src/sys/compat/linux/arch/i386: linux_exec_machdep.c
        src/sys/compat/linux/common: linux_limit.h
        src/sys/compat/osf1: osf1_resource.c
        src/sys/compat/svr4: svr4_resource.c
        src/sys/compat/svr4_32: svr4_32_resource.c
        src/sys/kern: exec_subr.c init_sysctl.c kern_exec.c kern_resource.c
        src/sys/sys: resource.h sysctl.h
        src/sys/uvm: uvm_extern.h uvm_glue.c uvm_mmap.c
        src/usr.bin/systat: ps.c
 Log Message:
 - add new RLIMIT_AS (aka RLIMIT_VMEM) resource that limits the total
 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
 - 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
 - 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 :-)
 To generate a diff of this commit:
 cvs rdiff -u -r1.45 -r1.46 src/bin/csh/csh.1
 cvs rdiff -u -r1.36 -r1.37 src/bin/csh/func.c
 cvs rdiff -u -r1.110 -r1.111 src/bin/ps/print.c
 cvs rdiff -u -r1.73 -r1.74 src/bin/ps/ps.c
 cvs rdiff -u -r1.37 -r1.38 src/bin/sh/miscbltin.c
 cvs rdiff -u -r1.91 -r1.92 src/bin/sh/sh.1
 cvs rdiff -u -r1.6 -r1.7 src/external/bsd/top/dist/machine/m_netbsd.c
 cvs rdiff -u -r1.81 -r1.82 src/lib/libkvm/kvm_proc.c
 cvs rdiff -u -r1.54 -r1.55 src/sys/arch/mips/mips/cpu_exec.c
 cvs rdiff -u -r1.56 -r1.57 src/sys/compat/darwin/darwin_exec.c
 cvs rdiff -u -r1.72 -r1.73 src/sys/compat/ibcs2/ibcs2_exec.c
 cvs rdiff -u -r1.14 -r1.15 src/sys/compat/irix/irix_resource.c
 cvs rdiff -u -r1.15 -r1.16 \
 cvs rdiff -u -r1.11 -r1.12 \
 cvs rdiff -u -r1.4 -r1.5 src/sys/compat/linux/common/linux_limit.h
 cvs rdiff -u -r1.13 -r1.14 src/sys/compat/osf1/osf1_resource.c
 cvs rdiff -u -r1.17 -r1.18 src/sys/compat/svr4/svr4_resource.c
 cvs rdiff -u -r1.16 -r1.17 src/sys/compat/svr4_32/svr4_32_resource.c
 cvs rdiff -u -r1.61 -r1.62 src/sys/kern/exec_subr.c
 cvs rdiff -u -r1.159 -r1.160 src/sys/kern/init_sysctl.c
 cvs rdiff -u -r1.287 -r1.288 src/sys/kern/kern_exec.c
 cvs rdiff -u -r1.150 -r1.151 src/sys/kern/kern_resource.c
 cvs rdiff -u -r1.30 -r1.31 src/sys/sys/resource.h
 cvs rdiff -u -r1.183 -r1.184 src/sys/sys/sysctl.h
 cvs rdiff -u -r1.152 -r1.153 src/sys/uvm/uvm_extern.h
 cvs rdiff -u -r1.135 -r1.136 src/sys/uvm/uvm_glue.c
 cvs rdiff -u -r1.127 -r1.128 src/sys/uvm/uvm_mmap.c
 cvs rdiff -u -r1.31 -r1.32 src/usr.bin/systat/ps.c
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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