Date: Thu, 7 Aug 2003 23:14:04 +0800 (KRAST) From: Eugene Grosbein <eugen@grosbein.pp.ru> To: FreeBSD-gnats-submit@freebsd.org Cc: stable@freebsd.org Subject: /bin/sh eats memory and CPU infinitely Message-ID: <200308071514.h77FE4xC034357@grosbein.pp.ru>
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>Submitter-Id: current-users >Originator: Eugene Grosbein >Organization: JSC Svyaz-Service >Confidential: no >Synopsis: /bin/sh eats memory and CPU infinitely >Severity: serious >Priority: medium >Category: bin >Class: sw-bug >Release: FreeBSD 4.8-STABLE i386 >Environment: System: FreeBSD grosbein.pp.ru 4.8-STABLE FreeBSD 4.8-STABLE #3: Wed Aug 6 21:50:36 KRAST 2003 eu@grosbein.pp.ru:/usr/local/obj/usr/local/src/sys/DADV i386 CPUTYPE=i686 and no other optimizations >Description: /bin/sh leaks memory and can eat all CPU cycles when it become very big. >How-To-Repeat: Test script is 15K in size so it comes gzipped and uuencoded. Yes, it is compressed very well. begin 644 test.sh.gz M'XL(`"5H,C\"`^W3P0F#`!``L/]-<2+T*WYUF^*!@FBI%=<O=(B"D.R0MNF> MR]8=<\0U+VOEYWU6CCGMD3]#]L!-Y$-<$!<0%Q`7Q`7$!<0%<0%Q`7%!7$!< ;0%Q`7!`7^&_<8ZUZ91_3OE5\`=@<)[J\.P`` ` end Run it and watch how /bin/sh slowly increases its SIZE, RES, WCPU and CPU values. This is an exapmle. My real script grows upto 70Mb in size and eats all of idle Pentium-III 866Mhz cycles, it is machine-generated and runs 24x7x365. It's twice smaller than this test case. Now I have to restart it from time to time. >Fix: Unknown for me. Eugene Grosbein
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