Date: Sun, 24 Apr 2016 20:49:34 +0300 From: Ivan Klymenko <fidaj@ukr.net> To: Warner Losh <imp@bsdimp.com> Cc: FreeBSD Current <freebsd-current@freebsd.org>, freebsd-virtualization@freebsd.org Subject: Re: Heads up Message-ID: <20160424204934.46eebae8@nonamehost.local> In-Reply-To: <20160415114443.660453cb@nonamehost.local> References: <CANCZdfpnYnVrvhNagYUT9RhAuC1AMCrxh=GCt8RKT0bqxuJybw@mail.gmail.com> <20160415114443.660453cb@nonamehost.local>
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On Fri, 15 Apr 2016 11:44:43 +0300 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 This problem is not over. After the update on other hardware from r296979 to r298512 (!!! without option CAM_NETFLIX_IOSCHED !!!) due to errors in recording the virtual machine to a virtual disk I lost completely virtual machine with permanent damage to the integrity of the file system in the inside of the virtual machine. This is a serious bug! Who cares not to fall into the same situation - is testing yourself and needed more testers. Because there is a suspicion that the problem is also relevant for bhyve VM. With me on this no more neither the strength nor the desire nor time. Thanks.home | help
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