Date: Mon, 5 Apr 2004 12:52:38 -0500 (CDT) From: Dan Nelson <dnelson@allantgroup.com> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/65219: update sysctl descriptions for SYSV IPC variables Message-ID: <200404051752.i35Hqcme024617@dan.emsphone.com> Resent-Message-ID: <200404051800.i35I0YbC068680@freefall.freebsd.org>
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>Number: 65219
>Category: kern
>Synopsis: update sysctl descriptions for SYSV IPC variables
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Mon Apr 05 11:00:33 PDT 2004
>Closed-Date:
>Last-Modified:
>Originator: Dan Nelson
>Release: FreeBSD 5.2-CURRENT i386
>Organization:
The Allant Group
>Environment:
System: FreeBSD dan.emsphone.com 5.2-CURRENT FreeBSD 5.2-CURRENT #322: Sun Apr 4 14:54:45 CDT 2004 dan@dan.emsphone.com:/usr/src/sys/i386/compile/DANSMP i386
>Description:
Almost all of the kern.ipc variables are undocumented. This patch
describes as many as I could find references to in other OS'es manuals.
>How-To-Repeat:
>Fix:
Index: sysv_msg.c
===================================================================
RCS file: /home/ncvs/src/sys/kern/sysv_msg.c,v
retrieving revision 1.52
diff -u -r1.52 sysv_msg.c
--- sysv_msg.c 7 Nov 2003 04:47:14 -0000 1.52
+++ sysv_msg.c 20 Nov 2003 22:47:39 -0000
@@ -1141,11 +1141,11 @@
}
SYSCTL_DECL(_kern_ipc);
-SYSCTL_INT(_kern_ipc, OID_AUTO, msgmax, CTLFLAG_RD, &msginfo.msgmax, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, msgmni, CTLFLAG_RDTUN, &msginfo.msgmni, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, msgmnb, CTLFLAG_RD, &msginfo.msgmnb, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, msgtql, CTLFLAG_RD, &msginfo.msgtql, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, msgssz, CTLFLAG_RDTUN, &msginfo.msgssz, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, msgseg, CTLFLAG_RDTUN, &msginfo.msgseg, 0, "");
+SYSCTL_INT(_kern_ipc, OID_AUTO, msgmax, CTLFLAG_RD, &msginfo.msgmax, 0, "Maximum message size");
+SYSCTL_INT(_kern_ipc, OID_AUTO, msgmni, CTLFLAG_RDTUN, &msginfo.msgmni, 0, "Number of message queue identifiers");
+SYSCTL_INT(_kern_ipc, OID_AUTO, msgmnb, CTLFLAG_RD, &msginfo.msgmnb, 0, "Maximum number of bytes in a queue");
+SYSCTL_INT(_kern_ipc, OID_AUTO, msgtql, CTLFLAG_RD, &msginfo.msgtql, 0, "Maximum number of messages in the system");
+SYSCTL_INT(_kern_ipc, OID_AUTO, msgssz, CTLFLAG_RDTUN, &msginfo.msgssz, 0, "Size of a message segment");
+SYSCTL_INT(_kern_ipc, OID_AUTO, msgseg, CTLFLAG_RDTUN, &msginfo.msgseg, 0, "Number of message segments");
SYSCTL_PROC(_kern_ipc, OID_AUTO, msqids, CTLFLAG_RD,
NULL, 0, sysctl_msqids, "", "Message queue IDs");
Index: sysv_sem.c
===================================================================
RCS file: /home/ncvs/src/sys/kern/sysv_sem.c,v
retrieving revision 1.69
diff -u -r1.69 sysv_sem.c
--- sysv_sem.c 17 Mar 2004 09:37:13 -0000 1.69
+++ sysv_sem.c 22 Mar 2004 22:46:13 -0000
@@ -159,16 +159,16 @@
};
SYSCTL_DECL(_kern_ipc);
-SYSCTL_INT(_kern_ipc, OID_AUTO, semmap, CTLFLAG_RW, &seminfo.semmap, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, semmni, CTLFLAG_RDTUN, &seminfo.semmni, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, semmns, CTLFLAG_RDTUN, &seminfo.semmns, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, semmnu, CTLFLAG_RDTUN, &seminfo.semmnu, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, semmsl, CTLFLAG_RW, &seminfo.semmsl, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, semopm, CTLFLAG_RDTUN, &seminfo.semopm, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, semume, CTLFLAG_RDTUN, &seminfo.semume, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, semusz, CTLFLAG_RDTUN, &seminfo.semusz, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, semvmx, CTLFLAG_RW, &seminfo.semvmx, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, semaem, CTLFLAG_RW, &seminfo.semaem, 0, "");
+SYSCTL_INT(_kern_ipc, OID_AUTO, semmap, CTLFLAG_RW, &seminfo.semmap, 0, "Number of entries in the semaphore map");
+SYSCTL_INT(_kern_ipc, OID_AUTO, semmni, CTLFLAG_RDTUN, &seminfo.semmni, 0, "Number of semaphore identifiers");
+SYSCTL_INT(_kern_ipc, OID_AUTO, semmns, CTLFLAG_RDTUN, &seminfo.semmns, 0, "Maximum number of semaphores in the system");
+SYSCTL_INT(_kern_ipc, OID_AUTO, semmnu, CTLFLAG_RDTUN, &seminfo.semmnu, 0, "Maximum number of undo structures in the system");
+SYSCTL_INT(_kern_ipc, OID_AUTO, semmsl, CTLFLAG_RW, &seminfo.semmsl, 0, "Max semaphores per id");
+SYSCTL_INT(_kern_ipc, OID_AUTO, semopm, CTLFLAG_RDTUN, &seminfo.semopm, 0, "Max operations per semop call");
+SYSCTL_INT(_kern_ipc, OID_AUTO, semume, CTLFLAG_RDTUN, &seminfo.semume, 0, "Max undo entries per process");
+SYSCTL_INT(_kern_ipc, OID_AUTO, semusz, CTLFLAG_RDTUN, &seminfo.semusz, 0, "Size in bytes of undo structure");
+SYSCTL_INT(_kern_ipc, OID_AUTO, semvmx, CTLFLAG_RW, &seminfo.semvmx, 0, "Semaphore maximum value");
+SYSCTL_INT(_kern_ipc, OID_AUTO, semaem, CTLFLAG_RW, &seminfo.semaem, 0, "Adjust on exit max value");
SYSCTL_PROC(_kern_ipc, OID_AUTO, sema, CTLFLAG_RD,
NULL, 0, sysctl_sema, "", "");
Index: sysv_shm.c
===================================================================
RCS file: /home/ncvs/src/sys/kern/sysv_shm.c,v
retrieving revision 1.90
diff -u -r1.90 sysv_shm.c
--- sysv_shm.c 5 Feb 2004 18:00:35 -0000 1.90
+++ sysv_shm.c 5 Apr 2004 17:44:55 -0000
@@ -142,17 +142,17 @@
static int shm_allow_removed;
SYSCTL_DECL(_kern_ipc);
-SYSCTL_INT(_kern_ipc, OID_AUTO, shmmax, CTLFLAG_RW, &shminfo.shmmax, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, shmmin, CTLFLAG_RW, &shminfo.shmmin, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, shmmni, CTLFLAG_RDTUN, &shminfo.shmmni, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, shmseg, CTLFLAG_RDTUN, &shminfo.shmseg, 0, "");
-SYSCTL_INT(_kern_ipc, OID_AUTO, shmall, CTLFLAG_RW, &shminfo.shmall, 0, "");
+SYSCTL_INT(_kern_ipc, OID_AUTO, shmmax, CTLFLAG_RW, &shminfo.shmmax, 0, "Maximum shared memory segment size");
+SYSCTL_INT(_kern_ipc, OID_AUTO, shmmin, CTLFLAG_RW, &shminfo.shmmin, 0, "Minimum shared memory segment size");
+SYSCTL_INT(_kern_ipc, OID_AUTO, shmmni, CTLFLAG_RDTUN, &shminfo.shmmni, 0, "Number of shared memory identifiers");
+SYSCTL_INT(_kern_ipc, OID_AUTO, shmseg, CTLFLAG_RDTUN, &shminfo.shmseg, 0, "Number of segments per process");
+SYSCTL_INT(_kern_ipc, OID_AUTO, shmall, CTLFLAG_RW, &shminfo.shmall, 0, "Maximum number of pages available for shared memory");
SYSCTL_INT(_kern_ipc, OID_AUTO, shm_use_phys, CTLFLAG_RW,
- &shm_use_phys, 0, "");
+ &shm_use_phys, 0, "Enable/Disable locking of shared memory pages in core");
SYSCTL_INT(_kern_ipc, OID_AUTO, shm_allow_removed, CTLFLAG_RW,
- &shm_allow_removed, 0, "");
+ &shm_allow_removed, 0, "Enable/Disable attachment to attached segments marked for removal");
SYSCTL_PROC(_kern_ipc, OID_AUTO, shmsegs, CTLFLAG_RD,
- NULL, 0, sysctl_shmsegs, "", "");
+ NULL, 0, sysctl_shmsegs, "", "Current number of shared memory segments allocated");
static int
shm_find_segment_by_key(key)
>Release-Note:
>Audit-Trail:
>Unformatted:
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