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Date: Thu, 25 Jun 1998 11:12:30 +0900
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Subject: [FreeBSD-users-jp 29964] bad crc error 
Errors-To: owner-FreeBSD-users-jp@jp.freebsd.org
Sender: owner-FreeBSD-users-jp@jp.freebsd.org

$BNkLZ!w@n:j;T$G$9!#(B

FreeBSD 2.1.7.1 $B$+$i(B 2.2.6 $B$K(BOS$B$rJQ99!J$^$C$5$i$+$i$N%$%s%9%H!<%k!K$r(B
$B9T$J$C$?$H$3$m!"$3$N%^%7%s$G(B 
/kernel: de0: receive: 00:80:ad:ba:29:1c: bad crc
$B$N$h$&$J%a%C%;!<%8$,IQHK$K=PNO$5$l$k$h$&$K$J$j$^$7$?!#(B

$B$3$N%^%7%s$O(BNFS/NIS$B%/%i%$%"%s%H$G!"(BFreeBSD 2.1.7.1$B$N%5!<%P!<$r%^%&%s%H(B
$B$7$F$$$^$9!#FC$K(BNFS$B$GFI$_=q$-$r9T$J$&$HBgNL$K>e5-%a%C%;!<%8$,I=<($5$l(B
$B$^$9!#(B
$B%M%C%H%o!<%/%+!<%I$O(B
  <Digital 21041 Ethernet> rev 33 $B$H(B <Digital 21040 Ethernet> rev 35 
$B$N%A%C%W$r;H$C$?(B10M$B@lMQ$N%M%C%H%o!<%/%+!<%I$r;H$C$F$$$^$9$,!"$$$:$l$N(B
$B>l9g$bF1MM$N>I>u$G$9!#(B
NFS$B%5!<%P!<$bF1$8%M%C%H%o!<%/%+!<%I$r;H$C$F$*$j!"(BAHA-2940$B$r;H$C$F(BCCD$B$G(B
$B%_%i!<%j%s%0$b9T$J$C$F$$$^$9!#(B

$B$3$l$O0JA0$3$3$G$b$*OC$N=P$F$$$?(B

>FreeBSD Q and A [$B4IM}HV9f(B: 623]
>
>Q. DEC 2114x $B%A%C%W$N(B NIC $B$r;H$C$F$$$^$9$,!"(B
>de0: abnormal interrupt: transmit underflow (raising TX threshold to
>96|256)
>de0: abnormal interrupt: transmit underflow (raising TX threshold to
>8|512)
>de0: abnormal interrupt: transmit underflow (raising TX threshold to
>1024)
>de0: abnormal interrupt: transmit underflow (switching to
>store-and-forward mode)
>
>$B$H$$$&$h$&$J%a%C%;!<%8$,=P$^$9!#(B
>
>A. $B$3$N%a%C%;!<%8$O!"(Bde $B%I%i%$%P$,!V(B2114x $B$,Aw?.%"%s%@!<%U%m!<3d$j9~$_(B
>$B$rH/@8$7$?!W$3$H$r8!=P$7$?$H$$$&0UL#$G$9!#(B

 $B!ACfN,!A(B

>$B$7$?$,$C$F!"DL?.$NAj<j@h$G$OJQ$J%Q%1%C%H$r<u$1<h$k$3$H$K$J$j!"$?$H$($P!"(B
>$B$=$l$,%$!<%5%Q%1%C%H$N:G8eHx$KIU2C$5$l$k$Y$-(B CRC (Cyclic Redundancy
>Check) $B$,IU$$$F$$$J$$>uBV$N%Q%1%C%H$H$_$J$5$l$?>l9g$O!"<!$N$h$&$J(B bad
>crc $B$H$N%a%C%;!<%8$,I=<($5$l$k$G$7$g$&!#(B
>
>    de0: receive: xx:xx:xx:xx:xx:xx: bad crc

$B$KHs>o$K;w$F$$$k$N$G$9$,!"(B

1. FreeBSD 2.1.7.1 $B$N$H$-$K$O$3$N$h$&$J%a%C%;!<%8$O=P$F$$$J$+$C$?!#(B
2. FReeBSD 2.1.7.1 $B$N%5!<%P!<B&(B(Broken frame$B$rAw$C$F$/$k%^%7%s(B)$B$K$O(B
   underflow$B%a%C%;!<%8$O=P$F$$$J$$!#(B
3. NFS/NIS$B%/%i%$%"%s%H$+$i$N(BNFS I/O$B$,B?$/$J$k$H;I$5$k$3$H$,$"$k!#(B
   $B!J$3$l$O$I$&$b0JA0$+$i$"$C$?$h$&$G$9!K(B

$B$N$h$&$K$&>/$7>u67$,0[$J$k$h$&$G$9!#(B
$B$=$3$G;d$O(B FreeBSD 2.1.7.1 $B$N(B de $B%I%i%$%P$,$"$^$j$*C}$j$G$J$$$N$G%a%C(B
$B%;!<%8$r=P$5$J$$$@$1$G!"0JA0$+$i(BBroken frame$B$rAw=P$9$kLdBj$O$"$C$?$N$G(B
$B$O$J$$$+$H9M$($F$$$^$9!#$7$+$7!"%I%i%$%P$r<+J,$G$OHf3SI>2A$G$-$k$[$I$N(B
$B%9%-%k$,$"$j$^$;$s$N$G$4AjCL$5$;$F$$$?$@$-$^$7$?!#(B

$B$h$m$7$/$*4j$$$7$^$9!#(B

$B$9$:$-(B


