Re: 2.6.15-rc5-mm1 (x86_64-hpet-overflow.patch breaks resume from disk)

[Rafael J. Wysocki]

On Friday, 9 December 2005 13:41, Jan Beulich wrote:
> >>> "Rafael J. Wysocki" <rjw@xxxxxxx> 09.12.05 12:20:05 >>>
> >On Friday, 9 December 2005 10:15, Jan Beulich wrote:
> >> It's a possible way to address this, but I'd rather just set a flag
> >> indicating that the last-whatever values should not be considered
> (to
> >> get into a state just like after initial boot). Jan
> >
> >OK, but what is the interrupt handler supposed to do if the
> >vxtime.last* values are invalid?  I guess assume delta = 0?
> 
> As I said, the state should be (re)set to whatever is in effect at
> boot.
> 
> >BTW, in the interrupt handler there is:
> >
> >		__asm__("mulq %1\n\t"
> >		        "shrdq $32, %%rdx, %0"
> >		        : "+a" (delta)
> >		        : "rm" (vxtime.tsc_quot)
> >		        : "rdx");
> >
> >Is the "+a" a typo?
> 
> Why would you think so?

Well, "=" is usually used in that context and "+", "=" are on the same key. ;-)

Rafael


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