I had discovered all site with "unlink" keyword, but found nothing.

My question is:

Linux tkdrzbkup2.nssmb.com 2.4.18-12smp #1 SMP Fri Jun 14 15:22:49 EDT 2002 i686Linux,Red Hat 7.1, ReseirFS

root@tkdrzbkup2 staging# dd if=/dev/zero of=big_file bs=1M count=3072

3072+0 records in

3072+0 records out

root@tkdrzbkup2 staging# pwd

/export/staging

root@tkdrzbkup2 staging# mount

/dev/rza1 on / type ext2 (rw)

/dev/rze1 on /export type reiserfs (rw)

root@tkdrzbkup2 staging# ls -l

total 3148800

-rw-r--r-- 1 root root 3221225472 Nov 12 09:56 big_file

root@tkdrzbkup2 staging# perl -e 'printf "Deleted %d files\n", unlink "/export/staging/big_file"'"'

Deleted 0 files

For checking:

root@tkdrzbkup2 staging# ls > a

root@tkdrzbkup2 staging# ls -l

total 3148804

-rw-r--r-- 1 root root 11 Nov 12 13:33 a

-rw-r--r-- 1 root root 3221225472 Nov 12 09:56 big_file

root@tkdrzbkup2 staging# perl -e 'printf "Deleted %d files\n", unlink "/export/staging/a"'

Deleted 1 files

Command 'rm':

root@tkdrzbkup2 staging# rm -f big_file

root@tkdrzbkup2 staging# ls -l

total 0

It means, unlink doesn't work with big files.

Perl info:

root@tkdrzbkup2 staging# perl -V

  Summary of my perl5 (revision 5.0 version 6 subversion 0) configurat
+ion:
  Platform:
  osname=linux, osvers=2.2.17-8smp, archname=i386-linux
  uname='linux porky.devel.redhat.com 2.2.17-8smp #1 smp fri nov 17 16
+:12:17
  est 2000 i686 unknown 'config_args='-des -Doptimize=-O2 -march=i386 
+-mcpu=i686 -Dcc=gcc
  -Dcccdlflags=-fPIC -Dinstallprefix=/usr -Dprefix=/usr
  -Darchname=i386-linux -Dd_dosuid -Dd_semctl_semun -Di_db -Di_ndbm -D
+i_gdbm
  -Di_shadow -Di_syslog -Dman3ext=3pm -Uuselargefiles'hint=recommended
+, useposix=true,
  d_sigaction=define
  usethreads=undef use5005threads=undef useithreads=undef
  usemultiplicity=undefuseperlio=undef d_sfio=undef uselargefiles=unde
+f
  use64bitint=undef use64bitall=undef uselongdouble=undef usesocks=und
+ef
  Compiler:
  cc='gcc', optimize='-O2 -march=i386 -mcpu=i686', gccversion=2.96 200
+00731
  (Red Hat Linux 7.1 2.96-79)cppflags='-fno-strict-aliasing'
  ccflags ='-fno-strict-aliasing'
  stdchar='char', d_stdstdio=define, usevfork=false
  intsize=4, longsize=4, ptrsize=4, doublesize=8
  d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
  ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t',
  lseeksize=4alignbytes=4, usemymalloc=n, prototype=define
  Linker and Libraries:
  ld='gcc', ldflags =' -L/usr/local/lib'
  libpth=/usr/local/lib /lib /usr/lib
  libs=-lnsl -ldl -lm -lc -lcrypt
  libc=/lib/libc-2.2.2.so, so=so, useshrplib=false, libperl=libperl.a
  Dynamic Linking:
  dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic'
  cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib'


  Characteristics of this binary (from libperl):
  Compile-time options:
  Built under linux
  Compiled at Mar 23 2001 12:49:50
  @INC:
  /usr/lib/perl5/5.6.0/i386-linux
  /usr/lib/perl5/5.6.0
  /usr/lib/perl5/site_perl/5.6.0/i386-linux
  /usr/lib/perl5/site_perl/5.6.0
  /usr/lib/perl5/site_perl
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