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Bug 23924 - bash 2.05b-r5 has weird problems with named pipes ("Process Substitution")
Summary: bash 2.05b-r5 has weird problems with named pipes ("Process Substitution")
Status: RESOLVED WORKSFORME
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: x86 Linux
: High critical (vote)
Assignee: Martin Schlemmer (RETIRED)
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2003-07-03 15:20 UTC by Wolfram Schlich (RETIRED)
Modified: 2004-06-30 07:40 UTC (History)
2 users (show)

See Also:
Package list:
Runtime testing required: ---


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Description Wolfram Schlich (RETIRED) gentoo-dev 2003-07-03 15:20:51 UTC
$ while true; do read BLA < <(echo -e "YO\n"); done
-> Lots of interrupted system calls. If it's started within a bash script, this 
process hangs.

I believe this happened right after the upgrade from -r3 to -r5, but it persists 
after downgrading to -r3 :-/ Have checked a SuSE 7.3 box - no problems with the 
above commands.

Reproducible: Always
Steps to Reproduce:
1. $ while true; do read BLA < <(echo -e "YO\n"); done
Actual Results:  
Lots of interrupted system calls.

Expected Results:  
No errors ;)
Comment 1 SpanKY gentoo-dev 2003-07-04 17:22:36 UTC
works fine for me over here ;) 
 
`emerge info` please 
Comment 2 Wolfram Schlich (RETIRED) gentoo-dev 2003-07-06 15:51:21 UTC
'emerge info' on machine 1:
--8<--
Portage 2.0.48-r1 (default-x86-1.4, gcc-3.2.2, glibc-2.3.1-r4)
=================================================================
System uname: 2.4.21-ac4 i686 AMD Athlon(tm) MP
GENTOO_MIRRORS="http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror http://gentoo.oregonstate.edu http://www.ibiblio.org/pub/Linux/distributions/gentoo"
CONFIG_PROTECT="/etc /var/qmail/control /usr/share/config /usr/kde/2/share/config /usr/kde/3/share/config /var/bind /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/"
CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d"
PORTDIR="/usr/portage"
DISTDIR="/usr/portage/distfiles"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR_OVERLAY="/usr/local/portage"
USE="x86 oss 3dnow apm crypt cups encode gif imlib java jpeg mikmod mmx mpeg ncurses nls pdflib png quicktime sdl spell truetype xml2 zlib gdbm berkdb readline tetex svga mysql gpm tcpd pam libwww ssl perl python oggvorbis ldap cdr aalib acl acpi alsa cjk curl doc fbcon gd imap innodb jikes mbox mcal memlimit nas nntp nocardbus odbc pnp samba sasl slp socks5 sse tiff trusted usb wmf xml -arts -avi -gtk -kde -gnome -libg++ -motif -opengl -qt -slang -X -xmms -xv"
COMPILER="gcc3"
CHOST="i686-pc-linux-gnu"
CFLAGS="-march=athlon-mp -O3 -pipe"
CXXFLAGS="-march=athlon-mp -O3 -pipe"
ACCEPT_KEYWORDS="x86"
MAKEOPTS="-j6"
AUTOCLEAN="yes"
SYNC="rsync://rsync.bla.fasel.org/gentoo-portage"
FEATURES="sandbox buildpkg ccache distcc userpriv usersandbox digest notitles"
--8<--

'emerge info' on machine 2:
--8<--
Portage 2.0.48-r1 (default-x86-1.4, gcc-3.2.2, glibc-2.3.1-r4)
=================================================================
System uname: 2.4.20-gentoo-r5 i686
GENTOO_MIRRORS="http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror http://gentoo.oregonstate.edu http://www.ibiblio.org/pub/Linux/distributions/gentoo"
CONFIG_PROTECT="/etc /var/qmail/control /usr/share/config /usr/kde/2/share/config /usr/kde/3/share/config /var/bind"
CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d"
PORTDIR="/usr/portage"
DISTDIR="/usr/portage/distfiles"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR_OVERLAY="/usr/local/portage"
USE="x86 oss apm crypt cups gif imlib java jpeg mikmod mmx mpeg ncurses nls oggvorbis pdflib png quicktime sdl spell truetype xml2 xmms xv zlib gdbm berkdb readline tetex svga ruby mysql gpm tcpd pam libwww ssl perl python ldap aalib acl acpi alsa cdr curl fbcon gd imap innodb jikes mbox memlimit nocardbus odbc pnp samba sasl slp socks5 sse tiff trusted usb wmf xml -3dnow -arts -avi -encode -gtk -kde -gnome -libg++ -motif -opengl -qt -X -slang"
COMPILER="gcc3"
CHOST="i686-pc-linux-gnu"
CFLAGS="-march=pentium3 -O3 -pipe"
CXXFLAGS="-march=pentium3 -O3 -pipe"
ACCEPT_KEYWORDS="x86"
MAKEOPTS="-j2"
AUTOCLEAN="yes"
SYNC="rsync://rsync.bla.fasel.org/gentoo-portage"
FEATURES="sandbox buildpkg ccache distcc userpriv usersandbox digest notitles"
--8<--
Comment 3 Danny Milosavljevic 2003-07-11 08:40:31 UTC
this bug happens here too...
Comment 4 Seemant Kulleen (RETIRED) gentoo-dev 2003-12-29 20:29:29 UTC
how is bash -r7?
Comment 5 Aron Griffis (RETIRED) gentoo-dev 2004-06-30 07:40:33 UTC
This seems to work fine with more recent versions of bash, or maybe it's a different mix of bash and kernel/glibc.  Please reopen if the problem persists for you.