tiny lib/libkvm/kvm_proc.c correction

[John Baldwin]

On Saturday 06 March 2010 3:39:17 am Ulrich Spörlein wrote:
> On Fri, 05.03.2010 at 12:38:40 -0800, Xin LI wrote:
> > On 2010/03/05 11:59, Alexander Best wrote:
> > > Xin LI schrieb am 2010-03-05:
> > > On 2010/03/05 11:26, Alexander Best wrote:
> > >>>> hi there. does this look right?
> > > 
> > > Not to me, the value is not to be used this way and the comments
> > > above the code explained the same thing.
> > > 
> > > I think we should use cputick2usec but it's not available to userland
> > > (one have to copy cpu_tick_frequency and friends).
> > > 
> > >> damn you're right. i completely overlooked that comment. would it be 
worth
> > >> making cputick2usec available to userland? is kvm_proc.c the only 
candidate in
> > >> need of converting cpu ticks to usecs?
> > 
> > I'm not sure how to do that unfortunately, is there a way to expose a
> > kernel variable to userland which also works on a crash dump?
> 
> ticks *is* available to libkvm, not sure what happens on crashdumps,
> though. The following patchset has not been tested:
> 
> 
https://www.spoerlein.net/gitweb/?p=freebsd.work/.git;a=commitdiff;h=d500a051eb75dd234166bb11485c0a953aefce1d

I'm fine with this patch so long as you are reading 'ticks' from the crash 
dump.

-- 
John Baldwin