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Date: | Tue, 29 Nov 94 21:29:39 EST |
From: | peprbv AT cfa0 DOT harvard DOT edu (Bob Babcock) |
To: | djgpp AT sun DOT soe DOT clarkson DOT edu |
Subject: | Re: Interrupts |
Reply-To: | babcock AT cfa DOT harvard DOT edu |
> What happens if the real-mode callback/interrupt handler page faults? I stuff short code fragments into the 1st MB for releasing time slices and handling critical errors. Each handler is 16 bytes or less and exits by a retf or iret, so the handler itself can't generate a page fault, but it seems that invoking it or exiting from it could. I haven't seen any evidence that this is unsafe. Should I be worried.
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