Balazs Gerofi 9ba40dc0ff schedule(): hold runq lock for the entire duration of context switching ...

releasing the runq lock after loading page tables but before the actual
context switch can leave execution in an inconsistent if the current
process is descheduled from an IRQ between these two steps.
this patch holds the runq lock with IRQs disabled and makes the context
switch a single atomic operation.

2015-08-10 12:37:12 +09:00

..

x86

schedule(): hold runq lock for the entire duration of context switching

2015-08-10 12:37:12 +09:00