(Redhat appears to have not included perlbug in their 6.0 distribution,
so I am using an older perlbug from a distribution I built myself.
This is, however, running via the perl(1) included with redhat 6.0,
which is the one I am noticing the problem with.)
I had been running a script I wrote to resolve the PTRs of several
/16 networks, when I heard significant swapping about halfway through
I checked vmstat:
# vmstat 5 3
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
0 0 0 27592 17912 10204 18560 0 0 3 3 72 53 2 0 98
0 0 0 27592 17876 10204 18572 0 0 2 1 123 59 0 0 100
1 0 0 27592 17872 10204 18572 0 0 0 4 124 55 0 0 99
PID USER PRI NI SIZE RSS SHARE STAT LIB %CPU %MEM TIME COMMAND
850 root 6 0 82204 59M 404 S 0 0.2 47.2 3:49 ns.pl
The ouput was then redirected to a file. The file of IPs being read is
only 17M , and a running perl is usually less than 3M on this box.
This is pretty extreme use of perl, so I don't expect a high priority
to be placed on this report; however, the script will most likely be
running for another day or so, so if you would like any more info about
the running perl, please let me know.
PS: named crashed after expiring ~22000 rr from it's cache while I was
writing this report, so perl isnt the only thing unprepared for this
This perlbug was built using Perl 5.00502 - Mon Nov 30 03:25:42 PST 1998
It is being executed now by Perl 5.00503 - Tue Apr 6 23:33:05 EDT 1999.
Site configuration information for perl 5.00503:
Configured by root at Tue Apr 6 23:33:05 EDT 1999.
Summary of my perl5 (5.0 patchlevel 5 subversion 3) configuration:
osname=linux, osvers=2.2.1-ac1, archname=i386-linux
uname='linux porky.devel.redhat.com 2.2.1-ac1 #1 smp mon feb 1 17:44:44 est 1999 i686 unknown '
hint=recommended, useposix=true, d_sigaction=define
usethreads=undef useperlio=undef d_sfio=undef
cc='cc', optimize='-O2', gccversion=egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)
cppflags='-Dbool=char -DHAS_BOOL -I/usr/local/include'
ccflags ='-Dbool=char -DHAS_BOOL -I/usr/local/include'
stdchar='char', d_stdstdio=undef, usevfork=false
intsize=4, longsize=4, ptrsize=4, doublesize=8
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
alignbytes=4, usemymalloc=n, prototype=define
Linker and Libraries:
ld='cc', ldflags =' -L/usr/local/lib'
libpth=/usr/local/lib /lib /usr/lib
libs=-lnsl -lndbm -lgdbm -ldb -ldl -lm -lc -lposix -lcrypt
libc=, so=so, useshrplib=false, libperl=libperl.a
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic'
cccdlflags='-fpic', lddlflags='-shared -L/usr/local/lib'
Locally applied patches:
@INC for perl 5.00503:
Environment for perl 5.00503: