ed86674a3d
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. |
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.. | ||
acpica | ||
amd64 | ||
compile | ||
conf | ||
ia32 | ||
include | ||
isa | ||
pci | ||
Makefile |