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[bug #15295] Mach lets processes write to I/O ports

From: Samuel Thibault
Subject: [bug #15295] Mach lets processes write to I/O ports
Date: Mon, 26 Dec 2005 22:52:02 +0100
User-agent: w3m/0.5.1

Follow-up Comment #1, bug #15295 (project hurd):

Note that this depends on patch #4737 for proper user TSS functionning.

Marcus' proposed file #3216 does fix the issue indeed.  But of course then
neither the console nor Xorg work any more (illegal instruction), and
i386_io_port_add() still fails.  A simple solution for now could be to open
the iopl device, which gives access to a collection of allowed ports (see


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