From owner-FreeBSD-tech-jp@jp.freebsd.org  Sat Jan 31 01:24:09 1998
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To: FreeBSD-tech-jp@jp.freebsd.org
From: KATO Takenori <kato@ganko.eps.nagoya-u.ac.jp>
In-Reply-To: Your message of "Wed, 21 Jan 1998 18:14:48 +0900"
	<19980121181448B.kato@gneiss.eps.nagoya-u.ac.jp>
References: <19980121181448B.kato@gneiss.eps.nagoya-u.ac.jp>
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Subject: [FreeBSD-tech-jp 1157] Re: Please test unionfs
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$B2CF#!w=i5i$G$9!%(B

> Murata Shuuichirou <mrt@mickey.ai.kyutech.ac.jp> wrote:
> 
> > mount_union /home/obj /usr/obj
> > $B$7$F(B make world $B$7$?$i$9$0$K;_$^$C$A$c$&$N$G!"(B
> > $B%G%#%9%/MFNL$O>/$J$/$F$b;n$;$^$9$h!#(B
> 
> $BMn$A$^$7$?(B :-($B!%;d$N$H$3$m$G$O(Bbounce buffer$B4X78$G$*$b$$$C$-$j(Bpanic$B$7$F(B
> $B$/$l$^$9!%%+!<%M%k$K%G%P%C%0%7%s%\%k$D$1$k$NK:$l$F$$$?$N$G$9$,!$(BDDB$B$N(B
> trace$B$N=PNO$r8+$?$H$3$m!$62I]$N(Bclustered I/O$B$,$+$i$s$G$$$^$9!%$3$l$O$d$C(B
> $B$+$$$G$9!%(B

$B:G6a$NJQ99$G!$(Bpanic$B$7$J$/$J$j!$$`$i$?$5$s$HA4$/F1$8!$(B

> install -c -s -o bin -g bin -m 555   make /usr/obj/usr/src/tmp/usr/bin
> Segmentation fault - core dumped
> *** Error code 139
> 
> Stop.
> *** Error code 1

$B$H$$$&>uBV$K$J$j$^$7$?!%(Bpanic$B$7$J$$$@$1$^$H$b$H>!<j$K;W$C$F$$$k$N$G$9(B
$B$,!$;H$($J$$$3$H$K$O$+$o$j$"$j$^$;$s!%$=$l$G$A$g$C$H8+$?$N$G$9$,!$=i5i(B
$B$N;d$O(Bpanic$B$7$A$c$$$^$7$?!%(B

union_lookup()$B$N:G8e$K!$(BDIAGNOSTIC$B$K0O$^$l$?!$(B

	if (cnp->cn_namelen == 1 &&
	    cnp->cn_nameptr[0] == '.' &&
	    *ap->a_vpp != dvp) {
		panic("union_lookup returning . (%p) not same as startdir (%p)",
		    ap->a_vpp, dvp);
	}

$B$H$$$&ItJ,$,$"$j$^$9$,!$$3$N>r7o$,@.N)$7$F$$$^$9!%$h$&$9$k$K!$(B
DIAGNOSTIC$B%+!<%M%k$O$"$$$+$o$i$:(Bpanic$B$9$k$O$:$G$9!%$3$N(Bpanic$B<+BN$O!$(B
union_removed_upper()$B$r:o$k$3$H$K$h$jL5$/$J$j$^$9!%$J$s$G$3$&$7$?$+$H(B
$B$$$&$H!$O@M}E*;W9M$G$O$J$/!$%+%s$,(Bhash$B$,$*$+$7$$$H8@$C$F$-$?$H$$$&$@$1(B
$B$N$3$H$G$9!%(B($B$3$s$JM}M3$G$O(Bcommit$B$G$-$J$$(B)

$B$?$@$7!$(Bpanic$B$7$J$/$F$b(BDIAGNOSTIC$BL5$7$N;~$H>I>u$,JQ$o$i$J$$(B(make world
$B$9$k$H!$F1$8$H$3$m$G(Bsegmentation fault$B$,H/@8$9$k(B)$B$N$G!$JL$N$G$C$+$$MW(B
$B0x$,;D$C$F$$$k$N$@$H;W$$$^$9!%(B

$B$=$l$G!$$H$j$"$($:$NL\I8$H$7$F$d$j$?$$$3$H(B($B$G$O$J$/$F!$C/$+$K$d$C$FM_(B
$B$7$$$3$H$H=q$/$Y$-(B)$B$O!$(B`.'$B$K%"%/%;%9$7$?$H$-$K(BDIAGNOSTIC$B%+!<%M%k$G$b(B
panic$B$7$J$$$h$&$K$9$k$H$$$&$3$H$J$N$G!$2?$+$"$l$P65$($F$/$@$5$$!%(B


P.S.
LFS$B$O%=!<%9%D%j!<$+$i>C$($A$c$$$^$7$?!%(B

----
KATO Takenori <kato@ganko.eps.nagoya-u.ac.jp>
Dept. Earth Planet. Sci., Nagoya Univ.,  Nagoya, 464-01, Japan
PGP public key: finger kato@eclogite.eps.nagoya-u.ac.jp
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