From owner-freebsd-current@FreeBSD.ORG Thu Mar 19 14:56:58 2015 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 62353C15 for ; Thu, 19 Mar 2015 14:56:58 +0000 (UTC) Received: from courriel.site.uottawa.ca (eecsmail.engineering.uottawa.ca [137.122.24.224]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "*.site.uottawa.ca", Issuer "PositiveSSL CA 2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 0E548CB0 for ; Thu, 19 Mar 2015 14:56:57 +0000 (UTC) Received: from admin16.site.uottawa.ca (admin16.site.uottawa.ca [137.122.90.250]) (authenticated bits=0) by courriel.site.uottawa.ca (8.14.5/8.14.5) with ESMTP id t2JEY43A013235 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Thu, 19 Mar 2015 10:34:04 -0400 (EDT) (envelope-from kwhite@site.uottawa.ca) Date: Thu, 19 Mar 2015 10:34:04 -0400 (EDT) From: Keith White To: freebsd-current@freebsd.org Subject: panic: UMA: Increase vm.boot_pages on Dell R920 r279210 Message-ID: <20150319095306.C7719@admin16.site.uottawa.ca> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Mar 2015 14:56:58 -0000 I (temporarily) have a Dell R920 with 1T RAM, and 4 CPUs with 15 cores. I get a kernel panic when attempting to boot FreeBSD-11.0-CURRENT-amd64-20150223-r279210-memstick.img: ... Dell System PowerEdge R920 www.dell.com ... Four 2.30 GHz Fifteen-core Processors, L2/L3 Cache:3.75 MB/30 MB System running at 2.30 GHz System Bus Speed: 8.00 GT/s System Memory Size: 1024.0 GB, System Memory Speed: 1333 MHz, Voltage: 1.35V ... Booting... GDB: no debug ports present KDB: debugger backends: ddb KDB: current backend: ddb Copyright (c) 1992-2015 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD 11.0-CURRENT #0 r279210: Mon Feb 23 19:14:12 UTC 2015 root@releng2.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64 FreeBSD clang version 3.5.1 (tags/RELEASE_351/final 225668) 20150115 WARNING: WITNESS option enabled, expect reduced performance. panic: UMA: Increase vm.boot_pages cpuid = 0 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xffffffff81bfe7a0 vpanic() at vpanic+0x189/frame 0xffffffff81bfe820 panic() at panic+0x43/frame 0xffffffff81bfe880 startup_alloc() at startup_alloc+0x1da/frame 0xffffffff81bfe8d0 keg_alloc_slab() at keg_alloc_slab+0xce/frame 0xffffffff81bfe930 keg_fetch_slab() at keg_fetch_slab+0x171/frame 0xffffffff81bfe980 zone_fetch_slab() at zone_fetch_slab+0x6e/frame 0xffffffff81bfe9c0 zone_import() at zone_import+0x40/frame 0xffffffff81bfea30 zone_alloc_item() at zone_alloc_item+0x36/frame 0xffffffff81bfea70 uma_zcreate() at uma_zcreate+0x8a/frame 0xffffffff81bfeb10 vm_map_startup() at vm_map_startup+0x52/frame 0xffffffff81bfeb30 vm_mem_init() at vm_mem_init+0x31/frame 0xffffffff81bfeb50 mi_startup() at mi_startup+0x118/frame 0xffffffff81bfeb70 btext() at btext+0x2c KDB: enter: panic [ thread pid 0 tid 0 ] Stopped at kdb_enter+0x3e: movq $0,kdb_why db> I tried the suggestion "Increase vm.boot_pages" but am unsure how much. I tried doubling to 128, and even excessive(?) values like 102400; but got the same panic. If, however, I reduce the number of active cores to 10 in the BIOS, I am able to boot with the original value of vm.boot_pages. I have serial console and sneaker net access for the next couple of days. Any suggestions? ...keith -- Keith White, genie.uottawa.ca engineering.uottawa.ca kwhite@uottawa.ca [+1 613 562 5800 x6681]