From owner-freebsd-stable@FreeBSD.ORG Mon Apr 25 23:32:35 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id CFE7D1065797 for ; Mon, 25 Apr 2011 23:32:35 +0000 (UTC) (envelope-from gardnerbell@gmail.com) Received: from mail-iw0-f182.google.com (mail-iw0-f182.google.com [209.85.214.182]) by mx1.freebsd.org (Postfix) with ESMTP id 9C9FC8FC13 for ; Mon, 25 Apr 2011 23:32:35 +0000 (UTC) Received: by iwn33 with SMTP id 33so123343iwn.13 for ; Mon, 25 Apr 2011 16:32:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:date:message-id:subject:from:to :content-type; bh=ZiH5BaxrELmnblEWVN+gUY4yL6G3omhiXZvH/4e93/E=; b=Lzbdp7+J5/qhgv0Qq/gmICeNDtg6SpbbmYzUDMPTgYcy1GdBFFIrvZedGy+V4CEt/1 dZeKPRxYHSF9nm6ISq4CIxYDimNeyie8oMBXO5qTkNCQsOGIXHudiibQJkwqNCTfwVCA e43OLLJpj5ijakQ90YZc1Rk8aoiLtBnLvSz2s= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=hoZMSNOCmYQJGR/z38vjMwE7/qmrutlsOATe8t+nlhur1mJ4oyKuxrl3tFhvoOjlqh iWkr5zQYcMLvoPpGOgSLDYDBT7GylbElGOr9iUZld7seCsRIbtOPG0Hdq0jU/YZ0FMZ7 bCHLU1/v603jJAiBi2axyVgWG9X6Q9bPTuI9o= MIME-Version: 1.0 Received: by 10.42.141.202 with SMTP id p10mr76844icu.124.1303772982799; Mon, 25 Apr 2011 16:09:42 -0700 (PDT) Received: by 10.42.179.68 with HTTP; Mon, 25 Apr 2011 16:09:42 -0700 (PDT) Date: Mon, 25 Apr 2011 19:09:42 -0400 Message-ID: From: Gardner Bell To: freebsd-stable@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Subject: Fatal trap 12: page fault while in kernel mode X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Apr 2011 23:32:36 -0000 Downloading a torrent with many peers on a toshiba satellite notebook using an Atheros AR5006 wireless nic caused the following panic. This is an i386 system running 8.2-STABLE from around April 06. Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0xc647a000 fault code = supervisor read, page not present instruction pointer = 0x20:0xc0999329 stack pointer = 0x28:0xc51c1c18 frame pointer = 0x28:0xc51c1c24 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 12 (swi4: clock) trap number = 12 panic: page fault cpuid = 0 KDB: stack backtrace: #0 0xc08e0d07 at kdb_backtrace+0x47 #1 0xc08b1dc7 at panic+0x117 #2 0xc0be4b43 at trap_fatal+0x323 #3 0xc0be4dc0 at trap_pfault+0x270 #4 0xc0be5305 at trap+0x465 #5 0xc0bcbebc at calltrap+0x6 #6 0xc08c508a at softclock+0x22a #7 0xc088903b at intr_event_execute_handlers+0x13b #8 0xc088a75b at ithread_loop+0x6b #9 0xc0886d51 at fork_exit+0x91 #10 0xc0bcbf34 at fork_trampoline+0x8 Uptime: 6m15s Physical memory: 2026 MB Dumping 99 MB: 84 68 52 36 20 4 #0 doadump () at pcpu.h:231 231 pcpu.h: No such file or directory. in pcpu.h (kgdb) #0 doadump () at pcpu.h:231 #1 0xc08b1b63 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:419 #2 0xc08b1e00 in panic (fmt=Variable "fmt" is not available. ) at /usr/src/sys/kern/kern_shutdown.c:592 #3 0xc0be4b43 in trap_fatal (frame=0xc51c1bd8, eva=3326582784) at /usr/src/sys/i386/i386/trap.c:946 #4 0xc0be4dc0 in trap_pfault (frame=0xc51c1bd8, usermode=0, eva=3326582784) at /usr/src/sys/i386/i386/trap.c:859 #5 0xc0be5305 in trap (frame=0xc51c1bd8) at /usr/src/sys/i386/i386/trap.c:532 #6 0xc0bcbebc in calltrap () at /usr/src/sys/i386/i386/exception.s:166 #7 0xc0999329 in ieee80211_tx_mgt_timeout (arg=0xc647a000) at /usr/src/sys/net80211/ieee80211_output.c:2478 #8 0xc08c508a in softclock (arg=0xc0df90e0) at /usr/src/sys/kern/kern_timeout.c:430 #9 0xc088903b in intr_event_execute_handlers (p=0xc55497f8, ie=0xc5591d00) at /usr/src/sys/kern/kern_intr.c:1220 #10 0xc088a75b in ithread_loop (arg=0xc5548070) at /usr/src/sys/kern/kern_intr.c:1233 #11 0xc0886d51 in fork_exit (callout=0xc088a6f0 , arg=0xc5548070, frame=0xc51c1d28) at /usr/src/sys/kern/kern_fork.c:845 #12 0xc0bcbf34 in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:273 (kgdb)