From owner-freebsd-sparc64@FreeBSD.ORG Sat Aug 20 02:53:38 2005 Return-Path: X-Original-To: sparc64@FreeBSD.org Delivered-To: freebsd-sparc64@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8612716A41F; Sat, 20 Aug 2005 02:53:38 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: from fileserver.fields.utoronto.ca (fileserver.fields.utoronto.ca [128.100.216.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 10F9743D45; Sat, 20 Aug 2005 02:53:37 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: from fields.fields.utoronto.ca (fields.localdomain [192.168.216.11]) by fileserver.fields.utoronto.ca (8.12.8/8.12.8/Fields 6.0) with ESMTP id j7K2rbvf016535 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 19 Aug 2005 22:53:37 -0400 Received: from obsecurity.dyndns.org (localhost.localdomain [127.0.0.1]) by fields.fields.utoronto.ca (8.12.8/8.12.8/Fields WS 6.0) with ESMTP id j7K2ra6P010283; Fri, 19 Aug 2005 22:53:36 -0400 Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 2B8D151358; Fri, 19 Aug 2005 22:53:36 -0400 (EDT) Date: Fri, 19 Aug 2005 22:53:36 -0400 From: Kris Kennaway To: Marcel Moolenaar Message-ID: <20050820025336.GA94049@xor.obsecurity.org> References: <20050819171555.GA45748@xor.obsecurity.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="+HP7ph2BbKc20aGI" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.1i Cc: marcel@FreeBSD.org, sparc64@FreeBSD.org, Kris Kennaway Subject: Re: kgdb still broken? X-BeenThere: freebsd-sparc64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the Sparc List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 20 Aug 2005 02:53:38 -0000 --+HP7ph2BbKc20aGI Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Aug 19, 2005 at 05:42:33PM -0700, Marcel Moolenaar wrote: >=20 > On Aug 19, 2005, at 10:15 AM, Kris Kennaway wrote: >=20 > >When I attempt to run kgdb on a core on sparc64 I get this: > > > >kgdb: kvm_read: invalid address (7070707) > >kgdb: kvm_read: invalid address (ffffd9c1) > >kgdb: kvm_read: invalid address (4044ac00) > *snip* >=20 > >Is it working for you on sparc since your recent fix? >=20 > Yes. I typically get the above (on any architecture) when the kernel > is out-of-sync with the core file. Are the core file and kernel in > sync? OK, that was it.. It's not making much sense of the backtrace though: (kgdb) bt #0 doadump () at /usr/src.6/sys/kern/kern_shutdown.c:233 #1 0x00000000c006a728 in db_fncall (dummy1=3D0, dummy2=3D0, dummy3=3D11, d= ummy4=3D0x16e9a41a0 "") at /usr/src.6/sys/ddb/db_command.c:486 #2 0x00000000c006a434 in db_command (last_cmdp=3D0xc040f940, cmd_table=3D0= x0, aux_cmd_tablep=3D0xc03c8dc8, aux_cmd_tablep_end=3D0xc03c8de0) at /usr/src.6/sys/ddb/db_command.c:401 #3 0x00000000c006a558 in db_command_loop () at /usr/src.6/sys/ddb/db_comma= nd.c:452 #4 0x00000000c006d0b8 in db_trap (type=3D1855603632, code=3D0) at /usr/src= .6/sys/ddb/db_main.c:221 #5 0x00000000c018d208 in kdb_trap (type=3D107, code=3D0, tf=3D0x16e9a4630)= at /usr/src.6/sys/kern/subr_kdb.c:473 #6 0x00000000c02f6b4c in trap (tf=3D0x16e9a4630) at /usr/src.6/sys/sparc64= /sparc64/trap.c:307 #7 0x00000000c0048fe0 in tl1_trap () #8 0x00000000c0048fe0 in tl1_trap () Previous frame identical to this frame (corrupt stack?) Where ddb showed that the panic correctly (see my mail to -current entitled 'panic: uma_small_alloc: free page still has mappings!'). =20 gdb53 also gets it right, but I can't examine other threads to see if they had also panicked. Kris --+HP7ph2BbKc20aGI Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDBpsvWry0BWjoQKURAo/SAJsEQM4GrT6lEfUPLu+S/ojM2AhluACcC5v1 bnsnfYcSrqxnOma8daV4+6s= =ahPC -----END PGP SIGNATURE----- --+HP7ph2BbKc20aGI--