On Sat, 9 Feb 2002, Julian Elischer wrote:
> On Sun, 10 Feb 2002, Bruce Evans wrote:
> >
> > Yes, anything that reaches doreti checks for ASTs and runs userret() if
> > necessary and possible (only for returns to user mode).
> >
> > Hmm, this check seems to be inadequate for fast interrupts. The
Thanks
On Sun, 10 Feb 2002, Bruce Evans wrote:
>
> Yes, anything that reaches doreti checks for ASTs and runs userret() if
> necessary and possible (only for returns to user mode).
>
> Hmm, this check seems to be inadequate for fast interrupts. There is
> no check for rescheduling if the retu
On Fri, 8 Feb 2002, Julian Elischer wrote:
> Bruce, for the low-level impared such as myself, can you give a quick
> precis on teh difference between "fast" interrupt handlers in -current
> and 'normal' interrupt handlers.
"Fast" interrupt handlers are harder to program and should rarely be used
On Sat, 9 Feb 2002, Julian Elischer wrote:
> On Sun, 10 Feb 2002, Bruce Evans wrote:
> >
> > Yes, anything that reaches doreti checks for ASTs and runs userret() if
> > necessary and possible (only for returns to user mode).
> >
> > Hmm, this check seems to be inadequate for fast interrupts. The
Thanks
On Sun, 10 Feb 2002, Bruce Evans wrote:
>
> Yes, anything that reaches doreti checks for ASTs and runs userret() if
> necessary and possible (only for returns to user mode).
>
> Hmm, this check seems to be inadequate for fast interrupts. There is
> no check for rescheduling if the retu
On Fri, 8 Feb 2002, Julian Elischer wrote:
> Bruce, for the low-level impared such as myself, can you give a quick
> precis on teh difference between "fast" interrupt handlers in -current
> and 'normal' interrupt handlers.
"Fast" interrupt handlers are harder to program and should rarely be used
Bruce, for the low-level impared such as myself, can you give a quick
precis on teh difference between "fast" interrupt handlers in -current
and 'normal' interrupt handlers.
Do fast interrupt handlers enter through "trap()" ?
if they interrupt a user process, do they take on the cred of the run
