Configuration Information [Automatically generated, do not change]:
Machine: i686
OS: linux-gnu
Compiler: i686-pc-linux-gnu-gcc
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='i686'
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i686-pc-linux-gnu'
-DCONF_VENDOR='pc' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL
-DHAVE_CONFIG_H -I. -I. -I./include -I./lib
-DDEFAULT_PATH_VALUE='/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin'
-DSTANDARD_UTILS_PATH='/bin:/usr/bin:/sbin:/usr/sbin'
-DSYS_BASHRC='/etc/bash/bashrc' -DSYS_BASH_LOGOUT='/etc/bash/bash_logout'
-DNON_INTERACTIVE_LOGIN_SHELLS -DSSH_SOURCE_BASHRC -march=prescott -O2 -pipe
uname output: Linux home 2.6.28-hardened-r9 #1 SMP Fri Jun 19 19:08:07 EEST
2009 i686 Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz GenuineIntel GNU/Linux
Machine Type: i686-pc-linux-gnu
Bash Version: 4.0
Patch Level: 28
Release Status: release
Description:
Looks like 'wait' command in bash-4 is broken: if used together
with 'trap myhandler SIGCHLD' the 'wait' (without params) exit
just after receiving first child exit, instead of waiting for all
childs exit.
This bug already reported in Gentoo Linux bugzilla at
http://bugs.gentoo.org/show_bug.cgi?id=286360
but received no comments in 3 days, so I decide to report it to
bash bugtracker too.
Repeat-By:
This command works differently on bash-3.2 and bash-4:
$ time bash -c '
function spawn { echo SPAWN; sleep 1 & sleep 2 & }
set -m
spawn
trap spawn SIGCHLD
wait
'
On app-shells/bash-3.2_p39 (and all previous bash I've used for years)
it works as expected:
---cut---
SPAWN
SPAWN
[1] Done sleep 1
SPAWN
[2] Done sleep 2
SPAWN
[3] Done sleep 1
SPAWN
[4] Done sleep 2
SPAWN
SPAWN
<Ctrl-C>
real 0m3.288s
user 0m0.004s
sys 0m0.005s
---cut---
but on app-shells/bash-4.0_p28 it exit in 1 second without requiring to
press Ctrl-C:
---cut---
SPAWN
SPAWN
real 0m1.004s
user 0m0.001s
sys 0m0.001s
---cut---
