From owner-freebsd-sparc64@freebsd.org Wed Nov 18 00:20:40 2015 Return-Path: Delivered-To: freebsd-sparc64@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C5C36A323E5 for ; Wed, 18 Nov 2015 00:20:40 +0000 (UTC) (envelope-from mark.cave-ayland@ilande.co.uk) Received: from s16892447.onlinehome-server.info (s16892447.onlinehome-server.info [82.165.15.123]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 783211B23; Wed, 18 Nov 2015 00:20:40 +0000 (UTC) (envelope-from mark.cave-ayland@ilande.co.uk) Received: from host31-50-169-61.range31-50.btcentralplus.com ([31.50.169.61] helo=[192.168.1.65]) by s16892447.onlinehome-server.info with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.76) (envelope-from ) id 1ZyqUG-0006DM-Ty; Wed, 18 Nov 2015 00:20:37 +0000 Message-ID: <564BC437.4020909@ilande.co.uk> Date: Wed, 18 Nov 2015 00:20:07 +0000 From: Mark Cave-Ayland User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.8.0 MIME-Version: 1.0 To: Adrian Chadd CC: Marius Strobl , Alexey Dokuchaev , "freebsd-sparc64@freebsd.org" References: <20150913180126.GC7862@alchemy.franken.de> <55F89861.1030107@ilande.co.uk> <20150916031030.GA6711@FreeBSD.org> <55F9C2B8.7030605@ilande.co.uk> <20150916211914.GD18789@alchemy.franken.de> <20150917082817.GA71811@FreeBSD.org> <55FBB662.4080708@ilande.co.uk> <20150919211420.GK18789@alchemy.franken.de> <55FDEA3C.1010804@ilande.co.uk> <20150920043630.GA36162@FreeBSD.org> <20150922221404.GA81100@alchemy.franken.de> <563F8722.9050503@ilande.co.uk> <56462A41.4030707@ilande.co.uk> <564B94A9.70003@ilande.co.uk> In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 31.50.169.61 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on s16892447.onlinehome-server.info X-Spam-Level: X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=ham version=3.3.2 Subject: Re: PCI range checking under qemu-system-sparc64 X-SA-Exim-Version: 4.2.1 (built Sun, 08 Jan 2012 02:45:44 +0000) X-SA-Exim-Scanned: Yes (on s16892447.onlinehome-server.info) X-BeenThere: freebsd-sparc64@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Porting FreeBSD to the Sparc List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Nov 2015 00:20:41 -0000 On 17/11/15 23:12, Adrian Chadd wrote: > cool, thanks! > > can you do "show registers" and "bt" there? Do we know what's going on? WARNING: WITNESS option enabled, expect reduced performance. Trying to mount root from cd9660:/dev/iso9660/TEST [ro]... [ thread pid 1 tid 100002 ] Stopped at tl1_trap+0x24: stx %o0, [%sp + 0x997] db> show registers g0 0xfffff800015e84d0 g1 0xc0c8ab38 g2 0xc0c8a800 g3 0x1 g4 0xfffff800015efb80 g5 0x2d7400 g6 0xc3a6d980 g7 0xc0f791d0 pcpu0+0x1800 i0 0x11 pcpup+0xa i1 0x1 i2 0 i3 0 i4 0 i5 0 i6 0 i7 0x101264 tnpc 0xc00b0fe8 tl1_trap+0x28 tpc 0xc00b0fe4 tl1_trap+0x24 tstate 0x9958001507 tl1_trap+0x24: stx %o0, [%sp + 0x997] db> bt Tracing pid 1 tid 100002 td 0xfffff800015e84d0 KDB: reentering KDB: stack backtrace: kdb_reenter() at kdb_reenter+0x5c trap() at trap+0x2fc -- kernel stack fault %o7=0xc05743e0 -- sched_clock() at sched_clock+0x94 KDB: reentering KDB: stack backtrace: kdb_reenter() at kdb_reenter+0x5c trap() at trap+0x2fc -- kernel stack fault %o7=0xc011a050 -- db_read_bytes() at db_read_bytes+0x44 KDB: reentering KDB: stack backtrace: kdb_reenter() at kdb_reenter+0x5c trap() at trap+0x2fc -- kernel stack fault %o7=0xc011a050 -- db_read_bytes() at db_read_bytes+0x44 KDB: reentering KDB: stack backtrace: kdb_reenter() at kdb_reenter+0x5c trap() at trap+0x2fc -- kernel stack fault %o7=0xc011a050 -- db_read_bytes() at db_read_bytes+0x44 KDB: reentering KDB: stack backtrace: kdb_reenter() at kdb_reenter+0x5c trap() at trap+0x2fc -- kernel stack fault %o7=0xc011a050 -- panic: longjmp botch cpuid = -1012475520 KDB: stack backtrace: Uptime: 22s Automatic reboot in 15 seconds - press a key on the console to abort --> Press a key on the console to reboot, --> or switch off the system now. Definitely looks like the stack is corrupted here. ATB, Mark.