From owner-freebsd-current@freebsd.org Mon Aug 20 14:26:43 2018 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C779A106F93C for ; Mon, 20 Aug 2018 14:26:43 +0000 (UTC) (envelope-from olivier@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [96.47.72.83]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "smtp.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 7A28B8F5DF for ; Mon, 20 Aug 2018 14:26:43 +0000 (UTC) (envelope-from olivier@freebsd.org) Received: from mail-pg1-f169.google.com (mail-pg1-f169.google.com [209.85.215.169]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G3" (verified OK)) (Authenticated sender: olivier/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id 29A1B22911 for ; Mon, 20 Aug 2018 14:26:43 +0000 (UTC) (envelope-from olivier@freebsd.org) Received: by mail-pg1-f169.google.com with SMTP id z25-v6so2179045pgu.7 for ; Mon, 20 Aug 2018 07:26:43 -0700 (PDT) X-Gm-Message-State: AOUpUlFj1Y6vaI3MIvOmPPXYFLu48c58A0HAyAEUmd9ArnApH3fXofkD p7LGO1VBbw5GrL63s5+wVaO2kUUQUgzSsG+TNMA= X-Google-Smtp-Source: AA+uWPxV0HitL+HMvuU1C1bUsmabrFvwdbfWZt/OQIHUNvJCSeAEbAOvho6hmJ/k/iZeQ0xLZMN/TmHHUD2sNyK36d0= X-Received: by 2002:a65:60cf:: with SMTP id r15-v6mr43267136pgv.41.1534775201838; Mon, 20 Aug 2018 07:26:41 -0700 (PDT) MIME-Version: 1.0 From: =?UTF-8?Q?Olivier_Cochard=2DLabb=C3=A9?= Date: Mon, 20 Aug 2018 16:26:29 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: Loading carp module crash i386 (12-ALPHA2), seems VNET related To: freebsd-current Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.27 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.27 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, 20 Aug 2018 14:26:44 -0000 Just loading carp kernel module is enough to panic it: [root@router]~# uname -a FreeBSD router.bsdrp.net 12.0-ALPHA2 FreeBSD 12.0-ALPHA2 r338100M i386 [root@router]~# kldload carp Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x14de0f4c fault code = supervisor write, page not present instruction pointer = 0x20:0x1201657c stack pointer = 0x28:0x11f3e804 frame pointer = 0x28:0x11f3e80c 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 = 55291 (kldload) [ thread pid 55291 tid 100070 ] Stopped at vnet_carpstats_init+0x2c: movl %eax,__stop_set_vnet(%ecx,%esi,1) A backtrace on kgdb gives this output: (kgdb) bt #0 __curthread () at ./machine/pcpu.h:226 #1 doadump (textdump=) at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/kern/kern_shutdown.c:366 #2 0x009f69ee in db_dump (dummy=302081404, dummy2=false, dummy3=-1, dummy4=0x11f3e4fc "") at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/ddb/db_command.c:574 #3 0x009f67c7 in db_command (last_cmdp=, cmd_table=, dopager=) at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/ddb/db_command.c:481 #4 0x009f6520 in db_command_loop () at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/ddb/db_command.c:534 #5 0x009f978d in db_trap (type=12, code=0) at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/ddb/db_main.c:252 #6 0x0113e29e in kdb_trap (type=12, code=0, tf=0x11f3e7c4) at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/kern/subr_kdb.c:693 #7 0x016d593c in trap_fatal (frame=0x11f3e7c4, eva=) at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/i386/i386/trap.c:989 #8 0x016d5a43 in trap_pfault (frame=, usermode=0, eva=350097228) at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/i386/i386/trap.c:827 #9 0x016d508f in trap (frame=0x11f3e7c4) at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/i386/i386/trap.c:519 #10 0xffc0315d in ?? () #11 0x11f3e7c4 in ?? () #12 0x0121c7ef in vnet_register_sysinit (arg=0x120182cc ) at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/net/vnet.c:500 #13 0x010c18f0 in linker_file_sysinit (lf=) at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/kern/kern_linker.c:236 #14 linker_load_file (filename=, result=) at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/kern/kern_linker.c:462 #15 linker_load_module (kldname=, modname=0x11449c00 "carp", parent=0x0, verinfo=0x0, lfpp=0x11f3ea6c) at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/kern/kern_linker.c:2092 #16 0x010c30d1 in kern_kldload (td=0x1157c380, file=0x11449c00 "carp", fileid=0x11f3ea98) at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/kern/kern_linker.c:1071 #17 0x010c31ee in sys_kldload (td=0x1157c380, uap=0x1157c604) at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/kern/kern_linker.c:1097 #18 0x016d6217 in syscallenter (td=) at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/i386/i386/../../kern/subr_syscall.c:135 #19 syscall (frame=0x11f3eba8) at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/i386/i386/trap.c:1152 #20 0xffc033a7 in ?? () #21 0x11f3eba8 in ?? () Backtrace stopped: Cannot access memory at address 0xffbfecec (kgdb) frame 12 #12 0x0121c7ef in vnet_register_sysinit (arg=0x120182cc ) at /usr/local/BSDRP/TESTING/FreeBSD/src/sys/net/vnet.c:500 500 vs->func(vs->arg); Regards, Olivier