>Number:         10874
>Category:       port-newsmips
>Synopsis:       secondary bootstrap crashes when netbooted
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    port-newsmips-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Aug 22 02:43:00 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     Thilo Manske
>Release:        NetBSD 1.4 to 1.5_ALPHA2 (never worked for me)
>Organization:
Dies ist Thilos Unix Signature! Viel Spass damit.
>Environment:
	
NetBSD 1.5_ALPHA2 (News) #38: Sun Aug 20 18:19:44 MEST 2000
    thilo@News:/usr/src/sys/arch/newsmips/compile/News
total memory = 16352 KB
avail memory = 12704 KB
using 512 buffers containing 2048 KB of memory
SONY NET WORK STATION, Model NWS-3410, Machine ID #50053
mainbus0 (root)
cpu0 at mainbus0: MIPS R3000 CPU (0x220) Rev. 2.0 with MIPS R3010 FPC Rev.  2.0
cpu0: 64KB Instruction, 64KB Data, direct mapped cache
hb0 at mainbus0 
le0 at hb0 addr 0xbff80000 level 1: address 08:00:46:00:67:11
le0: 8 receive buffers, 2 transmit buffers
mkclock0 at hb0 addr 0xbff407f8
zsc0 at hb0 addr 0xbfec0000 level 1
zstty1 at zsc0 channel 1 (console i/o)
sc0 at hb0 addr 0xbfe00100 level 0
scsibus0 at sc0: 8 targets, 8 luns per target
scsibus0: waiting 2 seconds for devices to settle...


>Description:
The secondary bootstrap (/usr/mdec/boot) crashes when trying to netboot:
(bootdevice tftp)

NetBSD/newsmips Secondary Boot

TLB miss exception (Load or instruction fetch)
cause=8, sr=40c404, badvaddr=4c, epc=a07066a0
[Freeze]

Compiled with BOOT_DEBUG (common and boot):

NetBSD/newsmips Secondary Boot
HB system.
howto = 0x0
bootdev = 0xffffffff
bootname = /tftpboot/a020005.news3400
maxmem = 0xff8000

TLB miss exception (Load or instruction fetch)
cause=8, sr=40c404, badvaddr=4c, epc=a0706800
[Freeze]

>How-To-Repeat:
See above
>Fix:
Not known, the workaround I use:
Make a copy of your kernel in ecoff format with objcopy(1) and
boot that with tftpboot (in usr/mdec.mips) from NEWS OS 4.1.

>Release-Note:
>Audit-Trail:
>Unformatted: