Date: Wed, 15 May 2002 19:48:14 -0700 From: Kris Kennaway <kris@obsecurity.org> To: Andrew Gallatin <gallatin@cs.duke.edu> Cc: Kris Kennaway <kris@obsecurity.org>, alpha@FreeBSD.ORG Subject: Re: memory management fault during netbooting on 4.6-PRERELEASE Message-ID: <20020515194814.A98844@xor.obsecurity.org> In-Reply-To: <15586.63656.192672.240973@grasshopper.cs.duke.edu>; from gallatin@cs.duke.edu on Wed, May 15, 2002 at 08:09:12PM -0400 References: <20020514235608.A69014@xor.obsecurity.org> <15586.25465.541559.66681@grasshopper.cs.duke.edu> <20020515165719.A94539@xor.obsecurity.org> <15586.63656.192672.240973@grasshopper.cs.duke.edu>
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--7JfCtLOvnd9MIVvH Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, May 15, 2002 at 08:09:12PM -0400, Andrew Gallatin wrote: >=20 > Kris Kennaway writes: > > On Wed, May 15, 2002 at 09:32:41AM -0400, Andrew Gallatin wrote: > > >=20 > > > Kris Kennaway writes: > > > > I'm seeing the following on the alpha package cluster when trying= to > > > > netboot a 4.6-PRERELEASE kernel: > > >=20 > > > <...> > > >=20 > > > > pc =3D 0x0 > > > > ra =3D 0xfffffc000056bcc0 > > >=20 > > > Something followed a null function pointer. > > >=20 > > > Can you run gdb on the corresponding kernel.debug & see what > > > 'list *0xfffffc000056bcc0' shows for the caller? > >=20 > > Unfortunately I'm not getting a crashdump because it's happening > > during the boot process. >=20 > We're just using gdb to translate that address to a line number, so > you don't need a crashdump; just do what I asked. Here's an example: The reason I thought I needed a crashdump is because when I do that command I get this: axp0# gdb kernel.debug GNU gdb 4.18 Copyright 1998 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain condition= s. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "alpha-unknown-freebsd"... (gdb) l *0xfffffc000056bcc0 No source file for address 0xfffffc000056bcc0. Kris --7JfCtLOvnd9MIVvH Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (FreeBSD) iD8DBQE84x3uWry0BWjoQKURArVLAJ9LDjvX4iWZf9x24M79W/R3m2y22QCeORM/ +1zEwjFra3onl5RiL4/6Ad8= =oRId -----END PGP SIGNATURE----- --7JfCtLOvnd9MIVvH-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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