[9fans] ip/rarpd problem

[kazumi iwane <kiwane@mx6.ttcn.ne.jp>]

ip/rarpd dies as soon as it receives a request.

 rarpd 208: suicide: sys: trap: fault read addr=0xffff0000 pc=0x00002c19

Below is what acid tells me. dofmt:fmt looks bad. This should be equal
to efmt$1, a static format string defined in eipfmt(). I can't figure
out why this looks garbled.

Can somebody please enlighten me?

acid: stk()
At pc:0x00002c19:dofmt+0x138 /sys/src/libc/fmt/dofmt.c:37
dofmt(*dofmt:fmt=0xffff0000,*dofmt:f=0x7fffe4a8)
	called from vsnprint+0x62 /sys/src/libc/fmt/vsnprint.c:20
vsnprint(*vsnprint:len=0x00000028,*vsnprint:buf=0x7fffe55c,
         *vsnprint:args=0x7fffe50c,*vsnprint:fmt=0xffff0000)
	called from snprint+0x2b /sys/src/libc/fmt/snprint.c:13
snprint(*snprint:fmt=0xffff0000,*snprint:buf=0x7fffe55c,
        *snprint:len=0x00000028)
	called from eipfmt+0x272 /sys/src/libip/eipfmt.c:38
eipfmt(*eipfmt:f=0x7fffe5f0)
	called from _fmtdispatch+0x94 /sys/src/libc/fmt/fmt.c:187
_fmtdispatch(*_fmtdispatch:isrunes=0x00000000,*_fmtdispatch:f=0x7fffe5f0,
             *_fmtdispatch:fmt=0x000114b8)
	called from dofmt+0x75 /sys/src/libc/fmt/dofmt.c:62
dofmt(*dofmt:fmt=0x000114b6,*dofmt:f=0x7fffe5f0)
	called from vsnprint+0x62 /sys/src/libc/fmt/vsnprint.c:20
vsnprint(*vsnprint:len=0x00010000,*vsnprint:buf=0x7fffe744,
         *vsnprint:args=0x7fffe650,*vsnprint:fmt=0x000114b6)
	called from sprint+0x2c /sys/src/libc/fmt/sprint.c:13
sprint(*sprint:fmt=0x000114b6,*sprint:buf=0x7fffe744)
	called from main+0x330 /sys/src/cmd/ip/rarpd.c:141
main(*main:argv=0x7fffefe4,*main:argc=0x00000000)
	called from _main+0x31 /sys/src/libc/386/main9.s:16

-- kazumi iwane