[Bug 880472] Re: fwts: CMOS reading should have interrupts disabled during a read op
Colin King
880472 at bugs.launchpad.net
Mon Dec 5 12:46:20 UTC 2011
.."fix committed" was marked in this bug by me as the commit has been
committed to the git repo - however, the new changes have not been
uploaded.
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https://bugs.launchpad.net/bugs/880472
Title:
fwts: CMOS reading should have interrupts disabled during a read op
Status in “fwts” package in Ubuntu:
Fix Committed
Bug description:
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);
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