cvs commit: src/sys/kern kern_descrip.c
glebius at FreeBSD.org
Mon Mar 20 07:48:08 UTC 2006
On Sat, Mar 18, 2006 at 11:27:22PM +0000, Christian S.J. Peron wrote:
C> csjp 2006-03-18 23:27:22 UTC
C> FreeBSD src repository
C> Modified files:
C> sys/kern kern_descrip.c
C> Back out fd optimization introduced in revision 1.280 as it appears to be
C> really breaking things. Simple "close(0); dup(fd)" does not return descriptor
C> "0" in some cases. Further, this change also breaks some MAC interactions with
C> mac_execve_will_transition(). Under certain circumstances, fdcheckstd() can
C> be called in execve(2) causing an assertion that checks to make sure that
C> stdin, stdout and stderr reside at indexes 0, 1 and 2 in the process fd table
C> to fail, resulting in a kernel panic when INVARIANTS is on.
C> This should also kill the "dup(2) regression on 6.x" show stopper item on the
C> 6.1-RELEASE TODO list.
C> This is a RELENG_6 candidate.
C> PR: kern/87208
C> Silence from: des
C> MFC after: 1 week
Totus tuus, Glebius.
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