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From: Jilles Tjoelker <jilles@FreeBSD.org>
Date: Tue, 15 Mar 2011 20:24:21 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: RELENG_8
Subject: cvs commit: src/sys/kern kern_descrip.c
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jilles      2011-03-15 20:24:21 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_8)
    sys/kern             kern_descrip.c 
  Log:
  SVN rev 219677 on 2011-03-15 20:24:21Z by jilles
  
  MFC r218019: Do not trip a KASSERT if /dev/null cannot be opened for a
  setuid program.
  
  The fdcheckstd() function makes sure fds 0, 1 and 2 are open by opening
  /dev/null. If this fails (e.g. missing devfs or wrong permissions),
  fdcheckstd() will return failure and the process will exit as if it received
  SIGABRT. The KASSERT is only to check that kern_open() returns the expected
  fd, given that it succeeded.
  
  Tripping the KASSERT is most likely if fd 0 is open but fd 1 or 2 are not.
  
  Revision   Changes    Path
  1.357.2.5  +1 -1      src/sys/kern/kern_descrip.c