On Thu, Jun 22, 2017 at 2:26 AM, Guido Falsi <madpi...@freebsd.org> wrote:

> On 06/21/17 16:59, Guido Falsi wrote:
> > On 06/13/17 13:44, Peter Blok wrote:
> >> Hi,
> >>
> >> For a while now, I’m not able to build a RPI1-B image from -stable. I
> have narrowed it dow to fix 318394, which adds a refresh option to
> geom_label. If I undo this fix in today’s stable it works ok. If I don’t
> I’m getting continuously:
> >>
> >> vm_fault: pager read error, pid 1 (init)
> >> vnode_pager_generic_getpages_done: I/O read error 5
> >>
> >> I have looked at the fix and I can’t figure out why it breaks the code.
> >>
> >> And yes I have tried various other SD cards - they all have the same
> issue.
> >>
> >
> > Hi,
> >
> > I'm seeing similar symptoms with NanoBSD images on PCEngines ALIX and
> > APU2 boards, using compactflash and SD card storage respectively. The
> > problem has appeared as soon as I started testing 11.1-BETA1 from the
> > stable branch.
> >
> > Problem appears when I update the image, using a slightly modified
> > version of the standard nanobsd update and updatep[12] scripts. My
> > changes are not in the dd/gpart commands though, which are the same.
> > gpart seems the most likely candidate though.
> >
> > I have just discovered this thread and I will test reverting r318394
> > soon. Thanks to Peter for narrowing it down!
> >
> > Maybe this is related to having the disks mounted read-only?
> >
>
> I noticed that after the problem appears many commands, including
> shutdown, start failing telling "device not configured" for all mounted
> FSes. I'm even unable to "ls /dev".
>
> Looks like the geom refresh changes devices from below the system in a
> way which triggers this reaction.
>
> I don't know the geom code and have been unable to find an immediate
> problem in the commit mentioned above. I'd really like some help to know
> where to look, or what kind of debugging information is needed.
>
> This is quite a bad bug for people running NanoBSD and should be fixed
> before the release.
>

So can I recreate this with the embedded-type NanoBSD image? If this change
breaks NanoBSD, it will need to be reverted...

Warner
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