Re: BTX halt error: pxe/etherboot voodoo?

From: Jon Passki (cykyc_at_yahoo.com)
Date: 11/27/03

  • Next message: Daniel O'Connor: "Re: Compact Flash PCMCIA problems" 
    Date: Wed, 26 Nov 2003 20:49:01 -0800 (PST)
To: freebsd-stable@freebsd.org

    Self-reply...

    Etherboot had an alingment error for 3c90x that was fixed in
    5.0.10. All works!

    Take care,

    Jon

    --- Jon Passki <cykyc@yahoo.com> wrote:
    > Hello,
    >
    > I have a consistent error involving loader(8)...
    >
    > My Compaq Armada M700 laptop is connected through a docking
    > station. The station has a 3Com 3c905c TXM card w/ "Managed PC
    > Boot Agent (MBA) v4.00" and PXE 2.00. The BIOS and NIC are set
    > to
    > boot from the network first.
    >
    > Once booted, I have dhcpd setup with some vendor options to load
    > Etherboot's (v5.0.8) pxezloader. pxezloader then loads the
    > boot.menu file, and through the menus I have a choice to boot the
    > local harddrive. Also, I have enabled a more generic option in
    > Etherboot to boot the local harddrive. When either of these
    > choices are executed, the following happens:
    >
    > -) The boot0 menu appears and selects (or I select) the FreeBSD
    > partition
    > -) boot2 loads /boot/loader, which then found an exception
    >
    >
    > FreeBSD/i386 bootstrap loader, Revision 0.8
    > (root@dominique, Mon Sep 8 11:23:25 CDT 2003)
    > -
    > int=0000000d err=0000001a efl=00030202 eip=0000088f
    > eax=00000200 ebx=0000000c ecx=00000e54 edx=00000080
    > esi=00000000 edi=00000000 ebp=00000000 esp=00000406
    > cs=9d74 ds=0000 es=48ec fs=0000 gs=0000 ss=9dc2
    > cs:eip=cc 40 00 ec 48 00 00 00-00 00 00 00 00 06 02 00
    > ss:esp=38 91 00 00 c6 02 00 00-00 00 06 00 00 00 f3 4a
    >
    >
    > -) This error does not occur if I interrupt boot2 and have it
    > load
    > the kernel directly [i.e. 0:ad(0,a)/kernel]. The system boots
    > fine
    >
    > -) This error does not occur is I directly boot the harddrive by
    > either resetting the BIOS or NIC options to boot the local
    > harddrive first
    >
    > -) This error does not occur if I network boot a diskless FreeBSD
    > kernel
    >
    > -) The above register values have been the same on all observed
    > errors
    >
    > The system is a 4.9-PRERELEASE (Oct 26 2003), built on another
    > system. That system had the following in /etc/make.conf:
    > CPUTYPE=486
    > XFREE86_VERSION=4
    > NO_BIND=yes
    > NO_OPENSSH=yes
    > .undef PERL_VER
    > .undef PERL_VERSION
    > .undef PERL_ARCH
    > .undef NOPERL
    > .undef NO_PERL
    >
    > Etherboot modifications:
    > grep ^CFLAGS Config
    > CFLAGS32+= -DPCBIOS
    > CFLAGS32+= -DASK_BOOT=6 -DANS_DEFAULT=ANS_NETWORK
    > CFLAGS32+= -DALLOW_ONLY_ENCAPSULATED
    > CFLAGS32+= -DBACKOFF_LIMIT=7 -DCONGESTED
    > CFLAGS32+= -DCAN_BOOT_DISK
    > CFLAGS32+= -DTAGGED_IMAGE -DELF_IMAGE
    > CFLAGS32+= -DIMAGE_FREEBSD
    > CFLAGS32+= -DAOUT_IMAGE
    > CFLAGS32+= -DFREEBSD_KERNEL_ENV
    > CFLAGS32+= -Os -ffreestanding -fstrength-reduce
    > -fomit-frame-pointer -mcpu=i386
    > CFLAGS32+= -malign-jumps=1 -malign-loops=1
    > -malign-functions=1
    > CFLAGS32+= -Wall -W -Wno-format -Wno-unused
    >
    > Etherboot build:
    > gmake bin32/3c905c-tpo.lzpxe
    > cp bin32/3c905c-tpo.lzpxe /tftpboot/
    >
    >
    > The only thing that seems off is when pxezloader initially boots,
    > it displays its relocation address differently from the Makefile.
    >
    > The Makefile has RELOCADDR=0x94000 by default. When pxezloader
    > is
    > loaded, it displays (via main.c) reloc=0x9400, missing a zero at
    > the end. I've changed RELOCADDR to 0x74000 and 0x84000, with the
    > same exception error and register values. Both times, though,
    > reloc displayed 0x7400 and 0x8400 respectively. Setting
    > RELOCADDR
    > to 0x104000 upset Etherboot and it did not build successfully :-)
    >
    > Thoughts?
    >
    > Jon Passki
    >
    > p.s. I'm going to setup another box to exclude hardware issues
    > (e.g. flaky memory), just not tonight. When I do, I'll report
    > back.
    >
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