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markus@chromium.org authored
good chance that we will produce a zombie process inside of the new pid namespace. This happens, because we create a short-lived helper process when setting up the pid namespace, but the new "init" process never gets around to reaping this process. It would have reaped it, if it had received a SIGCHLD signal from any other process that died. But without the seccomp sandbox, that doesn't happen very frequently. This changelist reorders instructions so that we always look for dead children at least once, when starting the mainloop of the new "init" process. In doing so, we will always find and reap our dead helper process. BUG=109944 TEST=Run Chrome with the suid but without the seccomp sandbox, grep for "defunct" processes in the output of "ps auxw". There shouldn't be any. Review URL: https://chromiumcodereview.appspot.com/9661001 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@126188 0039d316-1c4b-4281-b951-d872f2087c98
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