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Date:      Mon, 12 Feb 2024 14:53:45 -0500
From:      Cheng Cui <cc@freebsd.org>
To:        Dave Cottlehuber <dch@freebsd.org>
Cc:        Michael Tuexen <tuexen@freebsd.org>, Richard Scheffenegger <rscheff@freebsd.org>, transport@freebsd.org,  dev-commits-src-main@freebsd.org
Subject:   Re: hitting Assertion !callout_active(&tp->t_callout) failed at /usr/src/sys/netinet/tcp_subr.c:2386 after 62d47d7
Message-ID:  <CAGaXuiLuL6QdYxO-_N%2Bg0Jw7YiK-NhS4pw2YjEKrn3XagDT5oA@mail.gmail.com>
In-Reply-To: <eff52164-c7a9-46f8-8146-0949b3fe1a6f@app.fastmail.com>
References:  <202402100934.41A9Y11l044213@gitrepo.freebsd.org> <e8721b3e-75bd-49c4-bfc2-76ac7c53deb8@app.fastmail.com> <fd1aa20e-dc05-4fb1-bf5f-2d15bc9e404f@app.fastmail.com> <EC325EA9-D52C-4793-B6E4-559E4F5404E5@freebsd.org> <eff52164-c7a9-46f8-8146-0949b3fe1a6f@app.fastmail.com>

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I created https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D277009. You m=
ay
add your findings there.

On Mon, Feb 12, 2024 at 6:41=E2=80=AFAM Dave Cottlehuber <dch@freebsd.org> =
wrote:

> On Mon, 12 Feb 2024, at 10:26, tuexen@freebsd.org wrote:
> >> On Feb 12, 2024, at 09:50, Dave Cottlehuber <dch@freebsd.org> wrote:
> >>
> >> On Mon, 12 Feb 2024, at 08:31, Dave Cottlehuber wrote:
> >>> I'm repeatedly hitting this assert soon after boot on my ryzen deskto=
p
> >>> I've a coredump.
> >>>
> >>> Panic String: Assertion !callout_active(&tp->t_callout) failed at
> >>> /usr/src/sys/netinet/tcp_subr.c:2386
>
> This one "just happens" while I'm sitting at the PC hacking in the
> terminal,
> I don't get much incoming data here so it's presumably clean local traffi=
c.
>
> >>> I'll apply your latest patch in
> >>> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D276761#c16 and
> report
> >>> back..
> >>
> >> Reporting back, insta-panic on boot at:
> >>
> >> Panic String: Assertion !tcp_timer_active(tp, TT_REXMT) failed at
> /usr/src/sys/netinet/tcp_subr.c:2387
> >>
> >> Does that help any?
> > Sure! Could you provide any hints how to reproduce it?
>
> this one happens during boot very early, I have a coredump handy if that
> helps.
> I will try with all sysctls disabled, and without zerotier (overlay
> network)
> too, see if that makes a difference.
>
> A+
> Dave
> =E2=80=94=E2=80=94=E2=80=94
> O for a muse of fire, that would ascend the brightest heaven of invention=
!
>
>

--=20
Best Regards,
Cheng Cui

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<div dir=3D"ltr"><div dir=3D"ltr">I created=C2=A0<a href=3D"https://bugs.fr=
eebsd.org/bugzilla/show_bug.cgi?id=3D277009">https://bugs.freebsd.org/bugzi=
lla/show_bug.cgi?id=3D277009</a>. You may add your findings there.</div><br=
><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, F=
eb 12, 2024 at 6:41=E2=80=AFAM Dave Cottlehuber &lt;<a href=3D"mailto:dch@f=
reebsd.org">dch@freebsd.org</a>&gt; wrote:<br></div><blockquote class=3D"gm=
ail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;border-l=
eft-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">On Mon=
, 12 Feb 2024, at 10:26, <a href=3D"mailto:tuexen@freebsd.org" target=3D"_b=
lank">tuexen@freebsd.org</a> wrote:<br>
&gt;&gt; On Feb 12, 2024, at 09:50, Dave Cottlehuber &lt;<a href=3D"mailto:=
dch@freebsd.org" target=3D"_blank">dch@freebsd.org</a>&gt; wrote:<br>
&gt;&gt; <br>
&gt;&gt; On Mon, 12 Feb 2024, at 08:31, Dave Cottlehuber wrote:<br>
&gt;&gt;&gt; I&#39;m repeatedly hitting this assert soon after boot on my r=
yzen desktop <br>
&gt;&gt;&gt; I&#39;ve a coredump.<br>
&gt;&gt;&gt; <br>
&gt;&gt;&gt; Panic String: Assertion !callout_active(&amp;tp-&gt;t_callout)=
 failed at <br>
&gt;&gt;&gt; /usr/src/sys/netinet/tcp_subr.c:2386<br>
<br>
This one &quot;just happens&quot; while I&#39;m sitting at the PC hacking i=
n the terminal,<br>
I don&#39;t get much incoming data here so it&#39;s presumably clean local =
traffic.<br>
<br>
&gt;&gt;&gt; I&#39;ll apply your latest patch in <br>
&gt;&gt;&gt; <a href=3D"https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=
=3D276761#c16" rel=3D"noreferrer" target=3D"_blank">https://bugs.freebsd.or=
g/bugzilla/show_bug.cgi?id=3D276761#c16</a> and report <br>
&gt;&gt;&gt; back..<br>
&gt;&gt; <br>
&gt;&gt; Reporting back, insta-panic on boot at:<br>
&gt;&gt; <br>
&gt;&gt; Panic String: Assertion !tcp_timer_active(tp, TT_REXMT) failed at =
/usr/src/sys/netinet/tcp_subr.c:2387<br>
&gt;&gt; <br>
&gt;&gt; Does that help any?<br>
&gt; Sure! Could you provide any hints how to reproduce it?<br>
<br>
this one happens during boot very early, I have a coredump handy if that he=
lps.<br>
I will try with all sysctls disabled, and without zerotier (overlay network=
)<br>
too, see if that makes a difference.<br>
<br>
A+<br>
Dave<br>
=E2=80=94=E2=80=94=E2=80=94<br>
O for a muse of fire, that would ascend the brightest heaven of invention!<=
br>
<br>
</blockquote></div><br clear=3D"all"><div><br></div><span class=3D"gmail_si=
gnature_prefix">-- </span><br><div dir=3D"ltr" class=3D"gmail_signature"><d=
iv dir=3D"ltr"><div></div>Best Regards,<div>Cheng Cui</div></div></div></di=
v>

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