From owner-freebsd-current@FreeBSD.ORG Mon Sep 16 15:26:25 2013 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 9BEA4801 for ; Mon, 16 Sep 2013 15:26:25 +0000 (UTC) (envelope-from hps@bitfrost.no) Received: from mta.bitpro.no (mta.bitpro.no [92.42.64.202]) by mx1.freebsd.org (Postfix) with ESMTP id 2D49E25D4 for ; Mon, 16 Sep 2013 15:26:25 +0000 (UTC) Received: from mail.lockless.no (mail.lockless.no [46.29.221.38]) by mta.bitpro.no (Postfix) with ESMTP id C7DD87A1EA for ; Mon, 16 Sep 2013 17:26:22 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by mail.lockless.no (Postfix) with ESMTP id 8BBE58EEB47 for ; Mon, 16 Sep 2013 17:26:40 +0200 (CEST) X-Virus-Scanned: by amavisd-new-2.6.4 (20090625) (Debian) at lockless.no Received: from mail.lockless.no ([127.0.0.1]) by localhost (mail.lockless.no [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9S2DXTRuS7CA for ; Mon, 16 Sep 2013 17:26:39 +0200 (CEST) Received: from laptop015.home.selasky.org (cm-176.74.213.204.customer.telag.net [176.74.213.204]) by mail.lockless.no (Postfix) with ESMTPSA id D39F28EEB42 for ; Mon, 16 Sep 2013 17:26:38 +0200 (CEST) Message-ID: <52372362.10506@bitfrost.no> Date: Mon, 16 Sep 2013 17:27:30 +0200 From: Hans Petter Selasky Organization: Bitfrost A/S User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:17.0) Gecko/20130522 Thunderbird/17.0.6 MIME-Version: 1.0 To: freebsd-current@freebsd.org Subject: General Protection Fault in prelist_remove() Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 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: Mon, 16 Sep 2013 15:26:25 -0000 Hi, I caught a General protection fault in prelist_remove. Any clues what this might be? FreeBSD-10 from one month back approx. > ffffffff80a95810 : > ffffffff80a95810: 55 push %rbp > ffffffff80a95811: 48 89 e5 mov %rsp,%rbp > ffffffff80a95814: 41 57 push %r15 > ffffffff80a95816: 41 56 push %r14 > ffffffff80a95818: 53 push %rbx > ffffffff80a95819: 48 83 ec 38 sub $0x38,%rsp > ffffffff80a9581d: 49 89 ff mov %rdi,%r15 > ffffffff80a95820: 48 8b 04 25 c0 de 3b mov 0xffffffff813bdec0,%rax > ffffffff80a95827: 81 > ffffffff80a95828: 48 89 45 e0 mov %rax,-0x20(%rbp) > ffffffff80a9582c: 49 c7 47 44 00 00 00 movq $0x0,0x44(%r15) > ffffffff80a95833: 00 > ffffffff80a95834: 41 f6 47 6c 01 testb $0x1,0x6c(%r15) > ffffffff80a95839: 74 4d je ffffffff80a95888 > ffffffff80a9583b: 4c 89 ff mov %r15,%rdi > ffffffff80a9583e: e8 fd 00 00 00 callq ffffffff80a95940 > ffffffff80a95843: 41 89 c6 mov %eax,%r14d > ffffffff80a95846: 45 85 f6 test %r14d,%r14d > ffffffff80a95849: 74 3d je ffffffff80a95888 > ffffffff80a9584b: 8b 04 25 c4 a6 56 81 mov 0xffffffff8156a6c4,%eax > ffffffff80a95852: 85 c0 test %eax,%eax > ffffffff80a95854: 74 32 je ffffffff80a95888 > ffffffff80a95856: 49 8d 77 20 lea 0x20(%r15),%rsi > ffffffff80a9585a: 48 8d 7d b0 lea -0x50(%rbp),%rdi > ffffffff80a9585e: e8 1d fa fd ff callq ffffffff80a75280 > ffffffff80a95863: 41 0f b6 4f 78 movzbl 0x78(%r15),%ecx > ffffffff80a95868: 4d 8b 07 mov (%r15),%r8 > ffffffff80a9586b: 49 83 c0 28 add $0x28,%r8 > ffffffff80a9586f: bf 03 00 00 00 mov $0x3,%edi > ffffffff80a95874: 48 c7 c6 c6 17 fa 80 mov $0xffffffff80fa17c6,%rsi > ffffffff80a9587b: 48 89 c2 mov %rax,%rdx > ffffffff80a9587e: 45 89 f1 mov %r14d,%r9d > ffffffff80a95881: 30 c0 xor %al,%al > ffffffff80a95883: e8 08 f0 e5 ff callq ffffffff808f4890 > ffffffff80a95888: 41 83 7f 7c 00 cmpl $0x0,0x7c(%r15) > ffffffff80a9588d: 7f 6c jg ffffffff80a958fb > ffffffff80a9588f: 49 8b 47 08 mov 0x8(%r15),%rax > ffffffff80a95893: 48 85 c0 test %rax,%rax > ffffffff80a95896: 74 0a je ffffffff80a958a2 > ffffffff80a95898: 49 8d 4f 08 lea 0x8(%r15),%rcx > ffffffff80a9589c: 48 39 48 10 cmp %rcx,0x10(%rax) ^^^^ crash here > ffffffff80a958a0: 75 72 jne ffffffff80a95914 > ffffffff80a958a2: 49 8b 4f 10 mov 0x10(%r15),%rcx Non-reproducable. --HPS