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Date: Fri, 15 Apr 2016 18:36:27 +0300
From: Ivan Klymenko <fidaj@ukr.net>
To: Warner Losh <imp@bsdimp.com>
Cc: FreeBSD Current <freebsd-current@freebsd.org>
Subject: Re: Heads up
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On Fri, 15 Apr 2016 07:29:23 -0600
Warner Losh <imp@bsdimp.com> wrote:

> Do you have this problem w/o CAM_NETFLIX_IOSCHED?

I not have problem without option CAM_NETFLIX_IOSCHED.

> 
> What version of virtualbox? I've not booted with that in 3 years.

virtualbox-ose-4.3.36

> 
> Warner
> 
> On Fri, Apr 15, 2016 at 2:44 AM, Ivan Klymenko <fidaj@ukr.net> wrote:
> 
> > On Thu, 14 Apr 2016 16:42:33 -0600
> > Warner Losh <imp@bsdimp.com> wrote:
> >  
> > > The CAM I/O scheduler has been committed to current. This work is
> > > described in
> > > https://people.freebsd.org/~imp/bsdcan2015/iosched-v3.pdf though
> > > the default scheduler doesn't change the default (old) behavior.
> > >
> > > One possible issue, however, is that it also enables NCQ Trims on
> > > ada SSDs. There are a few rogue drives that claim support for this
> > > feature, but actually implement data corrupt instead of queued
> > > trims. The list of known rogues is believed to be complete, but
> > > some caution is in order.
> > >
> > > Warner  
> >
> > Hi.
> > Thanks for you work.
> > But i have problem with VirtualBox if i use the kernel with option
> > CAM_NETFLIX_IOSCHED
> > http://imgur.com/JpcfW1h
> >