From http://ftp.gnu.org/pub/gnu/bash/bash-4.3-patches/bash43-032 Signed-off-by: Gustavo Zacarias BASH PATCH REPORT ================= Bash-Release: 4.3 Patch-ID: bash43-032 Bug-Reported-by: crispusfairbairn@gmail.com Bug-Reference-ID: Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2014-09/msg00013.html Bug-Description: When bash is running in Posix mode, it allows signals -- including SIGCHLD -- to interrupt the `wait' builtin, as Posix requires. However, the interrupt causes bash to not run a SIGCHLD trap for all exited children. This patch fixes the issue and restores the documented behavior in Posix mode. Patch (apply with `patch -p0'): *** a/bash-4.3-patched/jobs.c 2014-05-14 09:20:15.000000000 -0400 --- b/jobs.c 2014-09-09 11:50:38.000000000 -0400 *************** *** 3340,3344 **** { interrupt_immediately = 0; ! trap_handler (SIGCHLD); /* set pending_traps[SIGCHLD] */ wait_signal_received = SIGCHLD; /* If we're in a signal handler, let CHECK_WAIT_INTR pick it up; --- 3346,3352 ---- { interrupt_immediately = 0; ! /* This was trap_handler (SIGCHLD) but that can lose traps if ! children_exited > 1 */ ! queue_sigchld_trap (children_exited); wait_signal_received = SIGCHLD; /* If we're in a signal handler, let CHECK_WAIT_INTR pick it up; *** a/bash-4.3/patchlevel.h 2012-12-29 10:47:57.000000000 -0500 --- b/patchlevel.h 2014-03-20 20:01:28.000000000 -0400 *************** *** 26,30 **** looks for to find the patch level (for the sccs version string). */ ! #define PATCHLEVEL 31 #endif /* _PATCHLEVEL_H_ */ --- 26,30 ---- looks for to find the patch level (for the sccs version string). */ ! #define PATCHLEVEL 32 #endif /* _PATCHLEVEL_H_ */