Hi Keith!
On Tue, 2006-07-11 at 14:55 +1000, Keith Owens wrote:
> Fernando Luis =?ISO-8859-1?Q?V=E1zquez?= Cao (on Tue, 11 Jul 2006 13:21:01 +0900) wrote:
> >That is a good idea, but I have on concern. In mach-default by default
> >we use __send_IPI_shortcut (no_broadcast==0) instead of send_IPI_mask.
> >Is it always safe to ignore the no_broadcast setting? In other words,
> >can __send_IPI_shortcut be replaced by send_IPI_mask safely?
>
> It is always safe to use send_IPI_mask. It is not used by default
> because of concerns that send_IPI_mask may be slower than using a
> broadcast, although I do not know if anybody has measurements to back
> up that concern. OTOH I can guarantee that sending NMI as a broadcast
> has problems, it breaks some Dell Xeon servers[1]. My fix was to never
> broadcast NMI, from 2.6.18-rc1 NMI_VECTOR always uses a mask[2] and
> crash was changed accordingly[3].
>
> [1] http://marc.theaimsgroup.com/?t=114828920800003&r=1&w=2
> [2] http://marc.theaimsgroup.com/?t=115103727400006&r=1&w=2
> [3] http://marc.theaimsgroup.com/?t=115096703800003&r=1&w=2
Thank you for the links (I had forgotten about that thread) and
comments!
I prepared new patches and hopefully I got it right this time, Do they
look good this time (PATCH 4/4 in particular)?
Thank you in advance,
Fernando
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
