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bash keeps too much data in memory


From: Wojciech Puchar
Subject: bash keeps too much data in memory
Date: Thu, 13 Mar 2008 12:41:09 +0100 (CET)

Configuration Information [Automatically generated, do not change]:
Machine: i386
OS: freebsd6.2
Compiler: cc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i386' 
-DCONF_OSTYPE='freebsd6.2' -DCONF_MACHTYPE='i386-portbld-freebsd6.2' 
-DCONF_VENDOR='portbld' -DLOCALEDIR='/usr/local/share/locale' -DPACKAGE='bash' 
-DSHELL  -DHAVE_CONFIG_H   -I.  -I. -I./include -I./lib  -I/usr/local/include 
-O2 -fno-strict-aliasing -pipe -march=pentium3
uname output: FreeBSD wojtek.tensor.gdynia.pl 6.3-RELEASE-p1 FreeBSD 
6.3-RELEASE-p1 #0: Thu Feb 28 00:27:45 CET 2008     
address@hidden:/usr2/src/sys/i386/compile/p234  i386
Machine Type: i386-portbld-freebsd6.2

Bash Version: 3.2
Patch Level: 33
Release Status: release

Description:
        bash sometimes keeps in memory everything it outputs with echo.

Repeat-By:
        create BIG text file, lots of lines, at least 100MB
        do 
        while read ll;do echo $RANDOM $RANDOM $ll;done <bigfile >outfile
        then from other console observe how bash grows, will and with something
        above filesize - which suggest it keeps in memory all it echoed.

Fix:
        none




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