Sorry if this is already somewhere in the faq or just plain stupid, but I couldn't find any satisfying answer or workaround to this. When I do something like: -- use IPC::Open2; ... if($state->{pid} = open2(my $rx,my $tx,'/usr/bin/ispell','-S', '-a')) { $state->{header} = scalar <$rx>; ... } ... -- Under modperl, I can see the other progam sending data back (checked Ispell, but also did some diagnostics with others), but the mod_perl program seems not able to send *anything* over the $tx descriptor to the other end. Tried this with 1 MB of junk and a 'tee -a /tmp/anything' to see if this is a buffering issue. The file is created by tee, but no data present on STDIN. Funny thing is that the whole thing *is* working under regular perl 5.6.0. In the list archives, about a year ago there was a similar discussion betweeen Richard Timuss and Doug. At some point it was said that this was addressed and fixed in cvs (http://www.mail-archive.com/modperl@apache.org/msg05632.html). Current setup is perl 5.6.0, Apache 1.3.20, mod_perl 1.25, but also tried downgrading to apache 1.3.19, mod_perl 1.24, 1.24_01 and todays snapshot (20010612). All with the same problem. Any ideas where to start searching? Thanks, Ime -- Summary of my perl5 (revision 5.0 version 6 subversion 0) configuration: Platform: osname=linux, osvers=2.4.0, archname=i686-linux uname='linux roambird 2.4.0 #22 wed jan 10 13:50:18 cet 2001 i686 unknown ' config_args='' hint=previous, useposix=true, d_sigaction=define usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef useperlio=undef d_sfio=undef uselargefiles=undef use64bitint=undef use64bitall=undef uselongdouble=undef usesocks=undef Compiler: cc='gcc', optimize='-O3', gccversion=2.96 20000731 (Red Hat Linux 7.0) cppflags='-fno-strict-aliasing -I/www/include' ccflags ='-fno-strict-aliasing -I/www/include' 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=4 alignbytes=4, usemymalloc=n, prototype=define Linker and Libraries: ld='gcc', ldflags ='-L/www/lib' libpth=/lib /usr/lib /www/lib libs=-lnsl -lgdbm -ldl -lm -lc -lcrypt libc=/lib/libc-2.2.so, so=so, useshrplib=true, libperl=libperl.so Dynamic Linking: dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic' cccdlflags='-fpic', lddlflags='-shared -L/www/lib' Characteristics of this binary (from libperl): Compile-time options: Built under linux Compiled at Jan 11 2001 12:30:24 @INC: /www/lib/perl