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From: David Xu <davidxu@FreeBSD.org>
Date: Tue, 19 Apr 2005 08:07:28 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org,
	cvs-all@FreeBSD.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/sys proc.h src/sys/kern kern_exit.c
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davidxu     2005-04-19 08:07:28 UTC

  FreeBSD src repository

  Modified files:
    sys/sys              proc.h 
    sys/kern             kern_exit.c 
  Log:
  Fix a race condition between kern_wait() and thread_stopped().
  Problem is in kern_wait(), parent process steps through children list,
  once a child process is skipped, and later even if the child is stopped,
  parent process still sleeps in msleep(), the race happens if parent
  masked SIGCHLD.
  
  Submitted by : Peter Edwards peadar.edwards at gmail dot com
  MFC after    : 4 days
  
  Revision  Changes    Path
  1.259     +5 -1      src/sys/kern/kern_exit.c
  1.427     +1 -0      src/sys/sys/proc.h