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Date:      Sun, 23 Jan 2022 22:38:09 +0300
From:      Dima Panov <fluffy@FreeBSD.org>
To:        freebsd-current@freebsd.org, tech-lists <tech-lists@zyxst.net>,  freebsd-arm@freebsd.org
Subject:   Re: POLLHUP detected on devd socket
Message-ID:  <d9d85d02-5c2c-476f-99ee-f33e8b069d4b@Canary>
In-Reply-To: <Ye0ZsFgQL8jlAGaF@ceres.zyxst.net>
References:  <YewV/8v7nb78a%2Bg4@ceres.zyxst.net> <8BA9DE0C-81B4-420E-B326-7B7133EC31BA@dons.net.au> <Ye0ZsFgQL8jlAGaF@ceres.zyxst.net>

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Moin=21

I saw a such issue on amd64, both 13.0-RELEASE and -CURRENT.
Both hosts have zfsd enabled, and after devd die by signal 15 all other d=
aemons such as sshd, crond, syslogd (almost all runned daemons) stopeed b=
y signal 15 too. At least, as it shows by system logs.

Will try to play with zfsd disabled, as suggested.

--
Dima. (desktop, kde, x11, office, ports-secteam)=40=46reeBSD team
(fluffy=40=46reeBSD.org, https://t.me/dima=5Fpanov)

> On Sunday, Jan 23, 2022 at 12:03 PM, tech-lists <tech-lists=40zyxst.net=
 (mailto:tech-lists=40zyxst.net)> wrote:
> On Sun, Jan 23, 2022 at 04:10:40PM +1030, Daniel O'Connor wrote:
>
> > Is it reproducible=3F ie can you trigger it post boot=3F
> >
> > It is very strange that devd dying would kill anything else running -=

> > I have stopped and started it a lot while testing devd scripts and
> > I haven't seen anything else break.
> >
> > One idea would be to hack up devd's rc.d script and run it under
> > ktrace and try and get some clues.
>
> I can try that, thanks for the suggestion.
>
> Right now I'm thinking it's tied to zfsd, since disabling that
> service I've not seen the issue.
> --
> J.

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<html xmlns=3D=22http://www.w3.org/1999/xhtml=22><head>; <title></title> <=
meta name=3D=22viewport=22 content=3D=22width=3Ddevice-width, initial-sca=
le=3D1.0, user-scalable=3Dno=22> </head> <body style=3D=22font-family:Hel=
vetica;color:=23000000;font-size:13px;=22><img id=3D=22597B2328D72BB35BBA=
C8CD91A1D8EA24=22 alt=3D=22=22 width=3D=220px=22 src=3D=22https://read-re=
ceipts.canarymail.io:8100/track/2BD3A57834=462C18772CBE819A75674B4=5F597B=
2328D72BB35BBAC8CD91A1D8EA24.png=22 height=3D=220px=22><div id=3D=22Canar=
yBody=22> <div> Moin=21</div><div><br></div><div><br></div><div>I saw a s=
uch issue on amd64, both 13.0-RELEASE and -CURRENT.=C2=A0</div><div>Both =
hosts have zfsd enabled, and after devd die by signal 15 all other daemon=
s such as sshd, crond, syslogd (almost all runned daemons) stopeed by sig=
nal 15 too. At least, as it shows by system logs.</div> <div><br></div><d=
iv>Will try to play with zfsd disabled, as suggested.</div><div><br></div=
> </div> <div id=3D=22CanarySig=22> <div> <div style=3D=22font-family:Hel=
vetica;=22>--<br><div>Dima. (desktop, kde, x11, office, ports-secteam)=40=
=46reeBSD team</div><div>(fluffy=40=46reeBSD.org, https://t.me/dima=5Fpan=
ov)</div></div> <div><br></div> </div> </div> <div id=3D=22CanaryDropbox=22=
> </div> <blockquote id=3D=22CanaryBlockquote=22> <div> <div>On Sunday, J=
an 23, 2022 at 12:03 PM, tech-lists &lt;<a href=3D=22mailto:tech-lists=40=
zyxst.net=22>tech-lists=40zyxst.net</a>&gt; wrote:<br></div> <div>On Sun,=
 Jan 23, 2022 at 04:10:40PM +1030, Daniel O'Connor wrote: <br> <br><block=
quote type=3D=22cite=22>Is it reproducible=3F ie can you trigger it post =
boot=3F <br> <br>It is very strange that devd dying would kill anything e=
lse running - <br>I have stopped and started it a lot while testing devd =
scripts and <br>I haven't seen anything else break. <br> <br>One idea wou=
ld be to hack up devd's rc.d script and run it under <br>ktrace and try a=
nd get some clues. <br></blockquote> <br>I can try that, thanks for the s=
uggestion. <br> <br>Right now I'm thinking it's tied to zfsd, since disab=
ling that <br>service I've not seen the issue. <br>-- <br>J. <br></div> <=
/div> </blockquote> </body></html>
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