Re: opcontrol: line 1056: /dev/oprofile/0/enabled: No such file or directory

[John L. <le...@mo...>]

On Mon, Jul 30, 2007 at 04:03:06PM +0200, John Sigler wrote:

> >> What happens if you add nmi_watchdog=0 to your kernel boot parameters?
> > 
> > Thanks John. That worked, now I have /dev/oprofile/0 and /dev/oprofile/1
> 
> http://oprofile.sourceforge.net/doc/install.html states:
> 
> "If you use the NMI watchdog, be aware that the watchdog is disabled 
> when profiling starts, and not re-enabled until the OProfile module is 
> removed (or, in 2.6, when OProfile is not running)."
> 
> Is the documentation obsolete?
> 
> Or was the watchdog-disabling code broken somewhere along the way?

They actively chose to break userspace compatibility above our
complaints.

john