From owner-freebsd-amd64@FreeBSD.ORG Fri Jul 12 03:25:13 2013 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 14E4A3C3; Fri, 12 Jul 2013 03:25:13 +0000 (UTC) (envelope-from bsd-lists@1command.com) Received: from udns.ultimateDNS.NET (ultimatedns.net [209.180.214.225]) by mx1.freebsd.org (Postfix) with ESMTP id D25DB16B1; Fri, 12 Jul 2013 03:25:12 +0000 (UTC) Received: from udns.ultimateDNS.NET (localhost [127.0.0.1]) by udns.ultimateDNS.NET (8.14.5/8.14.5) with ESMTP id r6C3P06q009288; Thu, 11 Jul 2013 20:25:06 -0700 (PDT) (envelope-from bsd-lists@1command.com) Received: (from www@localhost) by udns.ultimateDNS.NET (8.14.5/8.14.5/Submit) id r6C3OtNu009287; Thu, 11 Jul 2013 20:24:55 -0700 (PDT) (envelope-from bsd-lists@1command.com) Received: from udns.ultimatedns.net ([209.180.214.225]) (UDNSMS authenticated user chrish) by ultimatedns.net with HTTP; Thu, 11 Jul 2013 20:24:55 -0700 (PDT) Message-ID: <4640843f1a35075d295f99aa9e8ed951.authenticated@ultimatedns.net> Date: Thu, 11 Jul 2013 20:24:55 -0700 (PDT) Subject: What are the ideal ranges for kern.ipc.shm*? From: "Chris H" To: "freebsd-amd64" , "freebsd-stable" User-Agent: UDNSMS/2.0.3 MIME-Version: 1.0 Content-Type: text/plain;charset=utf-8 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 12 Jul 2013 03:25:13 -0000 Greetings, Over the years using the xfce4 desktop, I would occasionally receive SHM ERROR messages. As they never interfered (so's I could notice), I always put off attempting to track the cause down. However, now having performed a fairly major upgrade (~1yr since last), The error appears to greatly affect KDE4 (used to use kde3) applications I run within xfce4. The windows don't re-draw correctly, and I receive additional errors,as well: ... Resource id: 0x0 X Error: BadDrawable (invalid Pixmap or Window parameter) 9 Major opcode: 62 (X_CopyArea) Resource id: 0x0 X Error: BadDrawable (invalid Pixmap or Window parameter) 9 Major opcode: 62 (X_CopyArea) Resource id: 0x0 X Error: BadDrawable (invalid Pixmap or Window parameter) 9 Major opcode: 62 (X_CopyArea) Resource id: 0x0 X Error: BadDrawable (invalid Pixmap or Window parameter) 9 Major opcode: 62 (X_CopyArea) Resource id: 0x0 QCoreApplication::postEvent: Unexpected null receiver ... After much searching, it would appear to be related to the kern.ipc.shm* values. pertinent details follow: FreeBSD udns 8.4-STABLE FreeBSD 8.4-STABLE #3: Tue Jul 2 13:41:21 PDT 2013 root@udns:/usr/obj/usr/src/sys/AMD64 amd64 with 64Gb ram, and 3 cores, and nvidia-driver-308.88_1. # ipcs -M shminfo: shmmax: 33554432 (max shared memory segment size) shmmin: 1 (min shared memory segment size) shmmni: 192 (max number of shared memory identifiers) shmseg: 128 (max shared memory segments per process) shmall: 8192 (max amount of shared memory in pages) Thank you for all your time, and consideration. --chris