K 10
svn:author
V 6
jilles
K 8
svn:date
V 27
2013-09-02T21:57:46.284890Z
K 7
svn:log
V 440
sh: Fix race condition with signals and wait or set -T.

The change in r238888 was incomplete. It was still possible for a trapped
signal to arrive before the shell went to sleep (sigsuspend()) because a
check was missing or because the signal arrived before in_waitcmd was set.

On SMP, this bug sometimes caused the builtins/wait4.0 test to take 1 second
to execute; it then might or might not fail. On UP, the test almost always
failed.

END