K 10
svn:author
V 3
bde
K 8
svn:date
V 27
2003-10-16T10:44:24.000000Z
K 7
svn:log
V 450
Don't forget to load %es with the kernel data segment selector in
Xcpustop().  %es is used in at least the call to savectx() when savectx()
calls bcopy(), so not loading it was fatal if a stop IPI interrupts
user mode.

This reduces bugs starting and stopping CPUs for debuggers.  CPUs are
stopped mainly in kdb_trap() and cpu_reset().  At reset time there is
a good chance that all the CPUs are in the kernel, so the bug was
probably harmless then.

END