System error

error:  read_file: could not open file '/nfs/www/math.umd.edu/mason/research/seminars/ritF11.html' for reading: Permission denied
context: 
... 
44:  # the potential bugs. It's easy to mess up the logic.
45: 
46:  sub read_file_ref
47:  {
48:  my $fh = _get_reading_handle(@_);
49:  my ($buffer, $retval) = ('');
50:  while (1) {
51:  # Important to read in chunks - 16KB is a good compromise
52:  # between not bloating memory usage and not calling read many
... 
code stack:  /usr/local/lib/perl/HTML/Mason/Tools.pm:48
/usr/local/lib/perl/HTML/Mason/Resolver/File.pm:97
/usr/local/lib/perl/HTML/Mason/ComponentSource.pm:55
/usr/local/lib/perl/HTML/Mason/Compiler/ToObject.pm:115
/usr/local/lib/perl/HTML/Mason/Interp.pm:317
/usr/local/lib/perl/HTML/Mason/Request.pm:198
/usr/local/lib/perl/HTML/Mason/Request.pm:166
/usr/local/lib/perl/HTML/Mason/ApacheHandler.pm:62
/usr/local/lib/perl/Class/Container.pm:265
/usr/local/lib/perl/Class/Container.pm:343
/usr/local/lib/perl/HTML/Mason/Interp.pm:222
/usr/local/lib/perl/HTML/Mason/ApacheHandler.pm:897
/usr/local/lib/perl/HTML/Mason/ApacheHandler.pm:822
(eval 27):8
/dev/null:0
raw error






























read_file: could not open file '/nfs/www/math.umd.edu/mason/research/seminars/ritF11.html' for reading: Permission denied

Trace begun at /usr/local/lib/perl/HTML/Mason/Tools.pm line 67
HTML::Mason::Tools::_get_reading_handle('/nfs/www/math.umd.edu/mason/research/seminars/ritF11.html') called at /usr/local/lib/perl/HTML/Mason/Tools.pm line 48
HTML::Mason::Tools::read_file_ref('/nfs/www/math.umd.edu/mason/research/seminars/ritF11.html') called at /usr/local/lib/perl/HTML/Mason/Resolver/File.pm line 97
HTML::Mason::Resolver::File::__ANON__ at /usr/local/lib/perl/HTML/Mason/ComponentSource.pm line 55
eval {...} at /usr/local/lib/perl/HTML/Mason/ComponentSource.pm line 55
HTML::Mason::ComponentSource::comp_source_ref('HTML::Mason::ComponentSource=HASH(0x967c9d0)') called at /usr/local/lib/perl/HTML/Mason/Compiler/ToObject.pm line 115
HTML::Mason::Compiler::ToObject::compile_to_file(undef, 'file', '/var/local/mason/math.umd.edu/obj/research/seminars/ritF11.html', 'source', 'HTML::Mason::ComponentSource=HASH(0x967c9d0)') called at /usr/local/lib/perl/HTML/Mason/Interp.pm line 317
HTML::Mason::Interp::load('HTML::Mason::Interp=HASH(0x8f75940)', '/research/seminars/ritF11.html') called at /usr/local/lib/perl/HTML/Mason/Request.pm line 198
eval {...} at /usr/local/lib/perl/HTML/Mason/Request.pm line 186
HTML::Mason::Request::_initialize('HTML::Mason::Request::ApacheHandler=HASH(0x91f1358)') called at /usr/local/lib/perl/HTML/Mason/Request.pm line 166
HTML::Mason::Request::new('HTML::Mason::Request::ApacheHandler', 'error_mode', 'output', 'error_format', 'html', 'interp', 'HTML::Mason::Interp=HASH(0x8f75940)', 'comp', '/research/seminars/ritF11.html', 'args', 'ARRAY(0x9afd5d0)', 'ah', 'HTML::Mason::ApacheHandler=HASH(0x8f759f4)', 'apache_req', 'Apache::Request=SCALAR(0x942ba60)', 'container', 'HASH(0x94fb3f0)') called at /usr/local/lib/perl/HTML/Mason/ApacheHandler.pm line 62
HTML::Mason::Request::ApacheHandler::new('HTML::Mason::Request::ApacheHandler', 'error_mode', 'output', 'error_format', 'html', 'interp', 'HTML::Mason::Interp=HASH(0x8f75940)', 'comp', '/research/seminars/ritF11.html', 'args', 'ARRAY(0x9afd5d0)', 'ah', 'HTML::Mason::ApacheHandler=HASH(0x8f759f4)', 'apache_req', 'Apache::Request=SCALAR(0x942ba60)', 'container', 'HASH(0x94fb3f0)') called at /usr/local/lib/perl/Class/Container.pm line 265
Class::Container::call_method('HTML::Mason::Interp=HASH(0x8f75940)', 'request', 'new', 'interp', 'HTML::Mason::Interp=HASH(0x8f75940)', 'comp', '/research/seminars/ritF11.html', 'args', 'ARRAY(0x9afd5d0)', 'ah', 'HTML::Mason::ApacheHandler=HASH(0x8f759f4)', 'apache_req', 'Apache::Request=SCALAR(0x942ba60)', 'container', 'HASH(0x94fb3f0)') called at /usr/local/lib/perl/Class/Container.pm line 343
Class::Container::create_delayed_object('interp', 'HTML::Mason::Interp=HASH(0x8f75940)', 'comp', '/research/seminars/ritF11.html', 'args', 'ARRAY(0x9afd5d0)', 'ah', 'HTML::Mason::ApacheHandler=HASH(0x8f759f4)', 'apache_req', 'Apache::Request=SCALAR(0x942ba60)', 'container', 'HASH(0x94fb3f0)') called at /usr/local/lib/perl/HTML/Mason/Interp.pm line 222
HTML::Mason::Interp::make_request('HTML::Mason::Interp=HASH(0x8f75940)', 'comp', '/research/seminars/ritF11.html', 'args', 'ARRAY(0x9afd5d0)', 'ah', 'HTML::Mason::ApacheHandler=HASH(0x8f759f4)', 'apache_req', 'Apache::Request=SCALAR(0x942ba60)') called at /usr/local/lib/perl/HTML/Mason/ApacheHandler.pm line 897
eval {...} at /usr/local/lib/perl/HTML/Mason/ApacheHandler.pm line 896
HTML::Mason::ApacheHandler::prepare_request('HTML::Mason::ApacheHandler=HASH(0x8f759f4)', 'Apache=SCALAR(0x94a06fc)') called at /usr/local/lib/perl/HTML/Mason/ApacheHandler.pm line 822
HTML::Mason::ApacheHandler::handle_request('HTML::Mason::ApacheHandler=HASH(0x8f759f4)', 'Apache=SCALAR(0x94a06fc)') called at (eval 27) line 8
HTML::Mason::ApacheHandler::handler('HTML::Mason::ApacheHandler', 'Apache=SCALAR(0x94a06fc)') called at /dev/null line 0
eval {...} at /dev/null line 0