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Date:      Fri, 13 Oct 2023 20:34:26 -0600
From:      Warner Losh <imp@bsdimp.com>
To:        Pete Wright <pete@nomadlogic.org>
Cc:        FreeBSD Current <freebsd-current@freebsd.org>
Subject:   Re: nvme timeout issues with hardware and bhyve vm's
Message-ID:  <CANCZdfpgw_sm4couYx9%2Bcgp-q_2jmPC2Q7TSeD9Yb3VYoiDQhQ@mail.gmail.com>
In-Reply-To: <0c4f8149-89dd-4635-a5ed-4766fffd2553@nomadlogic.org>
References:  <90d3e532-8ea7-4eea-8e31-8c363285a156@nomadlogic.org> <CANCZdfrQTd3F-j81HsamUCJG4DyUk_-yPOtbZY4Q926_ihatsQ@mail.gmail.com> <0ad493d5-1c1e-4370-977a-118f46ebd677@nomadlogic.org> <CANCZdfrwzmZ=iHj_vm2nsi72ceRQ81KY5DjiuML3udEaWTBanA@mail.gmail.com> <0c4f8149-89dd-4635-a5ed-4766fffd2553@nomadlogic.org>

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On Fri, Oct 13, 2023 at 11:47=E2=80=AFAM Pete Wright <pete@nomadlogic.org> =
wrote:

>
>
> On 10/13/23 6:24 AM, Warner Losh wrote:
> >
> >
> > On Thu, Oct 12, 2023, 10:53 PM Pete Wright <pete@nomadlogic.org
> > <mailto:pete@nomadlogic.org>> wrote:
> >
> >
> >
> >     On 10/12/23 8:45 PM, Warner Losh wrote:
> >      > What version is that kernel?
> >
> >     oh dang i sent this to the wrong list, i'm not running current.  th=
e
> >     hypervisor and vm are both 13.2 and my workstation is a recent 14.0
> >     pre-release build.  i'll do more homework tomorrow and post to
> >     questions
> >     or a more appropriate list.
> >
> >
> > Are the messages from the VM? Stable/14 should have the important nvme
> > changes I've made lately. The bhyve in 13.2 is lacking a number of nvme
> > fixes that have gone into current and stable/14. It's hard to say where
> > the fault is coming from.
> >
>
>
> the messages i posted in the start of the thread are from the VM itself
> (13.2-RELEASE).  The zpool on the hypervisor (13.2-RELEASE) showed no
> such issues.
>
> Based on your comment about the improvements in 14 I'll focus my efforts
> on my workstation, it seemed to happen regularly so hopefully i can find
> a repo case.
>

Let me now if you see similar messages in stable/14. I think I've fixed all
the
issues with timeouts, though you shouldn't ever seem them in a vm setup
unless something else weird is going on.

Warner

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<div dir=3D"ltr"><div dir=3D"ltr"><br></div><br><div class=3D"gmail_quote">=
<div dir=3D"ltr" class=3D"gmail_attr">On Fri, Oct 13, 2023 at 11:47=E2=80=
=AFAM Pete Wright &lt;<a href=3D"mailto:pete@nomadlogic.org">pete@nomadlogi=
c.org</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"ma=
rgin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:=
1ex"><br>
<br>
On 10/13/23 6:24 AM, Warner Losh wrote:<br>
&gt; <br>
&gt; <br>
&gt; On Thu, Oct 12, 2023, 10:53 PM Pete Wright &lt;<a href=3D"mailto:pete@=
nomadlogic.org" target=3D"_blank">pete@nomadlogic.org</a> <br>
&gt; &lt;mailto:<a href=3D"mailto:pete@nomadlogic.org" target=3D"_blank">pe=
te@nomadlogic.org</a>&gt;&gt; wrote:<br>
&gt; <br>
&gt; <br>
&gt; <br>
&gt;=C2=A0 =C2=A0 =C2=A0On 10/12/23 8:45 PM, Warner Losh wrote:<br>
&gt;=C2=A0 =C2=A0 =C2=A0 &gt; What version is that kernel?<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 =C2=A0oh dang i sent this to the wrong list, i&#39;m not =
running current.=C2=A0 the<br>
&gt;=C2=A0 =C2=A0 =C2=A0hypervisor and vm are both 13.2 and my workstation =
is a recent 14.0<br>
&gt;=C2=A0 =C2=A0 =C2=A0pre-release build.=C2=A0 i&#39;ll do more homework =
tomorrow and post to<br>
&gt;=C2=A0 =C2=A0 =C2=A0questions<br>
&gt;=C2=A0 =C2=A0 =C2=A0or a more appropriate list.<br>
&gt; <br>
&gt; <br>
&gt; Are the messages from the VM? Stable/14 should have the important nvme=
 <br>
&gt; changes I&#39;ve made lately. The bhyve in 13.2 is lacking a number of=
 nvme <br>
&gt; fixes that have gone into current and stable/14. It&#39;s hard to say =
where <br>
&gt; the fault is coming from.<br>
&gt; <br>
<br>
<br>
the messages i posted in the start of the thread are from the VM itself <br=
>
(13.2-RELEASE).=C2=A0 The zpool on the hypervisor (13.2-RELEASE) showed no =
<br>
such issues.<br>
<br>
Based on your comment about the improvements in 14 I&#39;ll focus my effort=
s <br>
on my workstation, it seemed to happen regularly so hopefully i can find <b=
r>
a repo case.<br></blockquote><div><br></div><div>Let me now if you see simi=
lar messages in stable/14. I think I&#39;ve fixed all the=C2=A0</div><div>i=
ssues with timeouts, though you shouldn&#39;t ever seem them in a vm setup<=
/div><div>unless something else weird is going on.</div><div><br></div><div=
>Warner <br></div></div></div>

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