From owner-freebsd-questions@FreeBSD.ORG Wed Aug 10 12:52:23 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 524F0106564A for ; Wed, 10 Aug 2011 12:52:23 +0000 (UTC) (envelope-from harald.glanzer@play.fm) Received: from mail-pz0-f45.google.com (mail-pz0-f45.google.com [209.85.210.45]) by mx1.freebsd.org (Postfix) with ESMTP id 3782A8FC0A for ; Wed, 10 Aug 2011 12:52:22 +0000 (UTC) Received: by pzk33 with SMTP id 33so3723680pzk.18 for ; Wed, 10 Aug 2011 05:52:22 -0700 (PDT) MIME-Version: 1.0 Received: by 10.142.117.13 with SMTP id p13mr7413075wfc.286.1312978941041; Wed, 10 Aug 2011 05:22:21 -0700 (PDT) Received: by 10.143.61.1 with HTTP; Wed, 10 Aug 2011 05:22:20 -0700 (PDT) Date: Wed, 10 Aug 2011 14:22:20 +0200 Message-ID: From: harald glanzer To: freebsd-questions@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Subject: FreeBSD 8.2-RELEASE generic kernel panic X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Aug 2011 12:52:23 -0000 hey folks, i have a problem related to a fresh-installed freebsd8.2-server, acting as host for 7 jails(mysql, apache, solr, ...). we are using AMD64 / GENERIC at the moment. this kind of kernel-panic occurs from time to time(about once a month, no regular basis) ------------------------------------------------------------------------------------------------------ Panic String: free: address 0x806274fb0(0x806274000) has not been allocated. ------------------------------------------------------------------------------------------------------ hardware: we are useing 2 XEON - cpus hw.machine: amd64 hw.model: Intel(R) Xeon(TM) CPU 2.66GHz hw.ncpu: 8 hw.machine_arch: amd64 and 24GB of ram. serverload is low(~3 - 4), swapspace 24GB to, but the OS is hardly ever(lets say never) using swapspace. i can not exclude a hardware fault for sure, because when excessively compiling ports, there was never a problem. on the other hand the address mentioned in the panicstring looks very high to me, so i'm not sure if this can be a valid address at all(memory-fault?) at all. could point me someone here into the right direction? how does freebsd allocate memory, and what address-size(32bit?) does it use? vmcore was written, so i followed the steps described at the freebsd developber-handbook for debugging this issue, but any help would be very appreciated. thx in advance for every piece of information, harri