Public bug reported:
To stop any potential race conditions between writing to port 0x70 and
reading from port 0x71 we should disable interrupts to be safe. We can
do this by:
iopl(3);
asm("cli");
write to port 0x70
read data from port 0x71
asm("sti");
iopl(0);
** Affects: fwts (Ubuntu)
Importance: Low
Assignee: Colin King (colin-king)
Status: Fix Committed
** Changed in: fwts (Ubuntu)
Status: New => In Progress
** Changed in: fwts (Ubuntu)
Importance: Undecided => Low
** Changed in: fwts (Ubuntu)
Assignee: (unassigned) => Colin King (colin-king)
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https://bugs.launchpad.net/bugs/880472
Title:
fwts: CMOS reading should have interrupts disabled during a read op
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