From owner-freebsd-stable  Tue Jun 27 15: 2:46 2000
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From: David Gilbert <dgilbert@velocet.ca>
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Date: Tue, 27 Jun 2000 18:02:26 -0400 (EDT)
To: freebsd-stable@freebsd.org
Subject: panic with 20 ethernet interfaces reproducable.
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With FreeBSD-stable (4.0-STABLE, this week's), I can reliably panic a
machine with 20 dc ethernet interfaces by typing 'ifconfig -a'

Here's some output.  How do I find the actual culprit of the first
panic? (Captured from a serial console)

dc14: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
        ether 00:80:c8:ca:1d:0f 
        media: autoselect (none) status: no carrier
        supported media: autoselect 100baseTX <full-duplex> 100baseTX 10baseT/UTP <full-duplex> 10baseT/UTP none
dc15: flags=8802<BROADCAST,SIMPLEX,MULTICA
Fatal double fault:
eip = 0xc0210319
esp = 0xca09ff88
ebp = 0xca0a001c
panic: double fault
Debugger("panic")
ST> mtu 1500
  S      ether 00:8t0:c8:ca:1d:10 
o        media: aputoselect (none)p status: no carreier
        supdported media: au toselect 100baseaTX <full-duplex>t 100baseTX 10bas eT/UTP <full-dup lex> 10baseT/UTP  none
dc16: fla gs=8802<BROADCAS T,SIMPLEX,MULTIC AST> mtu 1500
bD       ether 00:e80:c8:c9:70:59 
         media: uautoselect (noneg) status: no cargrier
        suepported media: arutoselect 100bas+eTX <full-duplex0> 100baseTX 10baxseT/UTP <full-du35:  movb    $0,in_Debugger.390
db> bt
No such command
db> trace
Debugger(c025baa3) at Debugger+0x35
panic(c0281983,c0281f30,ca0a001c,c0281f24,ca09ff88) at panic+0x70
dblfault_handler(1c00,0,0,0,0) at dblfault_handler+0x47
db> ?
Bad character
?
db> help
print       p           examine     x           search      set         write
w           delete      d           break       dwatch      watch       step
s           continue    c           until       next        match       trace
call        show        ps          gdb         panic
db> 

Dave.

-- 
============================================================================
|David Gilbert, Velocet Communications.       | Two things can only be     |
|Mail:       dgilbert@velocet.net             |  equal if and only if they |
|http://www.velocet.net/~dgilbert             |   are precisely opposite.  |
=========================================================GLO================


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