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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: "Jonathan Frederickson" <jonathan@HIDDEN>
Subject: Re: bug#72166: Shepherd periodically goes unresponsive on one of my
machines
In-Reply-To: <7974c622-e7d8-48b3-9948-14e8d7654793@HIDDEN> (Jonathan
Frederickson's message of "Fri, 19 Jul 2024 12:25:37 -0400")
References: <df6e8894-fd84-446f-a67f-50cdcc9de5b3@HIDDEN>
<878qxxtmwu.fsf@HIDDEN>
<7974c622-e7d8-48b3-9948-14e8d7654793@HIDDEN>
Date: Mon, 22 Jul 2024 09:14:29 +0200
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Hi,
"Jonathan Frederickson" <jonathan@HIDDEN> skribis:
> Hi Ludo, thanks for the troubleshooting help. Looks like I'm running 0.10=
.4:
>
> jfred@terracard ~$ cat /proc/1/cmdline | xargs -0
> /gnu/store/bhynhk0c6ssq3fqqc59fvhxjzwywsjbb-guile-3.0.9/bin/guile --no-au=
to-compile /gnu/store/39li5qpiaj1lx89xgahlbgvfnjhpcpwg-shepherd-0.10.4/bin/=
shepherd --config /gnu/store/hfyri6ygfdjq4w3nkha2ypa2k98hhfxj-shepherd.conf
>
> I see now that 0.10.5 was released a few weeks ago, does that have a fix =
that could be related?
Yes, it could be related. Per the =E2=80=98NEWS=E2=80=99 file of Shepherd:
** =E2=80=98herd unload root SERVICE=E2=80=99 no longer hands when there=
=E2=80=99s a replacement
(<https://issues.guix.gnu.org/71478>)
It used to be that, for a running service S that has a replacement regist=
ered,
=E2=80=98herd unload root S=E2=80=99 would hang shepherd, making it total=
ly unresponsive=E2=80=94=E2=80=98herd
status=E2=80=99, =E2=80=98halt=E2=80=99, etc. would hang forever, and ine=
td-style services would no
longer start, etc. This is now fixed.
Depending on previous =E2=80=98guix system reconfigure=E2=80=99 invocations=
on these
machines, it=E2=80=99s possible that you ended up in this state.
Would be great if you could upgrade and see if the problem still occurs.
Thanks,
Ludo=E2=80=99.
bug-guix@HIDDEN:bug#72166; Package guix.
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Fri, 19 Jul 2024 12:25:57 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.11.0-alpha0-568-g843fbadbe-fm-20240701.003-g843fbadb MIME-Version: 1.0 Message-Id: <7974c622-e7d8-48b3-9948-14e8d7654793@HIDDEN> In-Reply-To: <878qxxtmwu.fsf@HIDDEN> References: <df6e8894-fd84-446f-a67f-50cdcc9de5b3@HIDDEN> <878qxxtmwu.fsf@HIDDEN> Date: Fri, 19 Jul 2024 12:25:37 -0400 From: "Jonathan Frederickson" <jonathan@HIDDEN> To: =?UTF-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN> Subject: Re: bug#72166: Shepherd periodically goes unresponsive on one of my machines Content-Type: text/plain;charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 72166 Cc: 72166 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) On Fri, Jul 19, 2024, at 11:35 AM, Ludovic Court=C3=A8s wrote: > Hi Jonathan, >=20 > "Jonathan Frederickson" <jonathan@HIDDEN> skribis: >=20 > > I've been running into an issue with Shepherd on one of my machines.= Every so often (and I haven't figured out what conditions trigger it), = my Shepherd instances (both home and PID 1) will go unresponsive. I thou= ght I had tracked it down to a misbehaving home service that I had confi= gured, but it's just happened again without that service running. > > > > 'herd status' hangs indefinitely: > > > > jfred@terracard ~$ sudo herd status > > Password:=20 > > <never returns> > > > > ...on both instances: > > > > jfred@terracard ~$ herd status > > <never returns> >=20 > Ouch. What version of shepherd is running? (You can view it with > =E2=80=9Ccat /proc/1/cmdline | xargs -0=E2=80=9D.) >=20 > > The PID 1 shepherd instance isn't reaping defunct processes: > > > > jfred@terracard ~$ ps aux | grep -i lock > > jfred 541 0.0 0.0 3700 2304 ? S 18:30 0:00 swa= yidle -w timeout 300 swaylock -f -i ~/.wallpapers/user-manual.jpg timeou= t 10 if pgrep swaylock; then swaymsg "output * dpms off"; fi resume sway= msg "output * dpms on" before-sleep swaylock -f -i ~/.wallpapers/user-ma= nual.jpg > > jfred 3111 0.0 0.0 0 0 ? Z 18:53 0:00 [sw= aylock] <defunct> > > jfred 3112 0.0 0.0 0 0 ? Zs 18:53 0:00 [sw= aylock] <defunct> > > > > Some further troubleshooting... strace indicates that it's waiting o= n a read() on its fd 9: >=20 > Interesting. There were bugs in earlier 0.10.x version that could cau= se > this sort of thing; let=E2=80=99s see what version you have, first. >=20 > Ludo=E2=80=99. >=20 Hi Ludo, thanks for the troubleshooting help. Looks like I'm running 0.1= 0.4: jfred@terracard ~$ cat /proc/1/cmdline | xargs -0 /gnu/store/bhynhk0c6ssq3fqqc59fvhxjzwywsjbb-guile-3.0.9/bin/guile --no-a= uto-compile /gnu/store/39li5qpiaj1lx89xgahlbgvfnjhpcpwg-shepherd-0.10.4/= bin/shepherd --config /gnu/store/hfyri6ygfdjq4w3nkha2ypa2k98hhfxj-shephe= rd.conf I see now that 0.10.5 was released a few weeks ago, does that have a fix= that could be related?
bug-guix@HIDDEN:bug#72166; Package guix.
Full text available.Received: (at 72166) by debbugs.gnu.org; 19 Jul 2024 15:36:12 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Jul 19 11:36:11 2024 Received: from localhost ([127.0.0.1]:50213 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1sUpeV-0001fH-J4 for submit <at> debbugs.gnu.org; Fri, 19 Jul 2024 11:36:11 -0400 Received: from hera.aquilenet.fr ([185.233.100.1]:60734) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <ludo@HIDDEN>) id 1sUpeQ-0001ej-3y for 72166 <at> debbugs.gnu.org; Fri, 19 Jul 2024 11:36:10 -0400 Received: from localhost (localhost [127.0.0.1]) by hera.aquilenet.fr (Postfix) with ESMTP id A8B301F24; Fri, 19 Jul 2024 17:35:30 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at hera.aquilenet.fr Received: from hera.aquilenet.fr ([127.0.0.1]) by localhost (hera.aquilenet.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wa4uM9Ge4WZP; Fri, 19 Jul 2024 17:35:30 +0200 (CEST) Received: from ribbon (91-160-117-201.subs.proxad.net [91.160.117.201]) by hera.aquilenet.fr (Postfix) with ESMTPSA id 1FAE21EE6; Fri, 19 Jul 2024 17:35:30 +0200 (CEST) From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN> To: "Jonathan Frederickson" <jonathan@HIDDEN> Subject: Re: bug#72166: Shepherd periodically goes unresponsive on one of my machines In-Reply-To: <df6e8894-fd84-446f-a67f-50cdcc9de5b3@HIDDEN> (Jonathan Frederickson's message of "Wed, 17 Jul 2024 20:43:15 -0400") References: <df6e8894-fd84-446f-a67f-50cdcc9de5b3@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Date: Fri, 19 Jul 2024 17:35:29 +0200 Message-ID: <878qxxtmwu.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: 1.0 (+) X-Debbugs-Envelope-To: 72166 Cc: 72166 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -0.0 (/) Hi Jonathan, "Jonathan Frederickson" <jonathan@HIDDEN> skribis: > I've been running into an issue with Shepherd on one of my machines. Ever= y so often (and I haven't figured out what conditions trigger it), my Sheph= erd instances (both home and PID 1) will go unresponsive. I thought I had t= racked it down to a misbehaving home service that I had configured, but it'= s just happened again without that service running. > > 'herd status' hangs indefinitely: > > jfred@terracard ~$ sudo herd status > Password:=20 > <never returns> > > ...on both instances: > > jfred@terracard ~$ herd status > <never returns> Ouch. What version of shepherd is running? (You can view it with =E2=80=9Ccat /proc/1/cmdline | xargs -0=E2=80=9D.) > The PID 1 shepherd instance isn't reaping defunct processes: > > jfred@terracard ~$ ps aux | grep -i lock > jfred 541 0.0 0.0 3700 2304 ? S 18:30 0:00 swayidle= -w timeout 300 swaylock -f -i ~/.wallpapers/user-manual.jpg timeout 10 if = pgrep swaylock; then swaymsg "output * dpms off"; fi resume swaymsg "output= * dpms on" before-sleep swaylock -f -i ~/.wallpapers/user-manual.jpg > jfred 3111 0.0 0.0 0 0 ? Z 18:53 0:00 [swayloc= k] <defunct> > jfred 3112 0.0 0.0 0 0 ? Zs 18:53 0:00 [swayloc= k] <defunct> > > Some further troubleshooting... strace indicates that it's waiting on a r= ead() on its fd 9: Interesting. There were bugs in earlier 0.10.x version that could cause this sort of thing; let=E2=80=99s see what version you have, first. Ludo=E2=80=99.
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Date: Wed, 17 Jul 2024 20:43:15 -0400
From: "Jonathan Frederickson" <jonathan@HIDDEN>
To: bug-guix@HIDDEN
Subject: Shepherd periodically goes unresponsive on one of my machines
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I've been running into an issue with Shepherd on one of my machines. Every so often (and I haven't figured out what conditions trigger it), my Shepherd instances (both home and PID 1) will go unresponsive. I thought I had tracked it down to a misbehaving home service that I had configured, but it's just happened again without that service running.
'herd status' hangs indefinitely:
jfred@terracard ~$ sudo herd status
Password:
<never returns>
...on both instances:
jfred@terracard ~$ herd status
<never returns>
The PID 1 shepherd instance isn't reaping defunct processes:
jfred@terracard ~$ ps aux | grep -i lock
jfred 541 0.0 0.0 3700 2304 ? S 18:30 0:00 swayidle -w timeout 300 swaylock -f -i ~/.wallpapers/user-manual.jpg timeout 10 if pgrep swaylock; then swaymsg "output * dpms off"; fi resume swaymsg "output * dpms on" before-sleep swaylock -f -i ~/.wallpapers/user-manual.jpg
jfred 3111 0.0 0.0 0 0 ? Z 18:53 0:00 [swaylock] <defunct>
jfred 3112 0.0 0.0 0 0 ? Zs 18:53 0:00 [swaylock] <defunct>
Some further troubleshooting... strace indicates that it's waiting on a read() on its fd 9:
jfred@terracard ~ [env]$ sudo strace -fp 1
Password:
strace: Process 1 attached with 5 threads
[pid 144] read(9, <unfinished ...>
[pid 142] futex(0x7fa43892abe8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, NULL, FUTEX_BITSET_MATCH_ANY <unfinished ...>
[pid 141] futex(0x7fa43892abe8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, NULL, FUTEX_BITSET_MATCH_ANY <unfinished ...>
[pid 140] futex(0x7fa43892abe8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, NULL, FUTEX_BITSET_MATCH_ANY^
...which seems to be:
jfred@terracard ~ [env]$ sudo ls -l /proc/1/fd/9
lr-x------ 1 root root 64 Jul 17 20:39 /proc/1/fd/9 -> 'pipe:[4015]'
jfred@terracard ~ [env]$ sudo lsof -n | grep 4015
lsof: WARNING: can't stat() fuse.portal file system /run/user/1000/doc
Output information may be incomplete.
shepherd 1 root 9r FIFO 0,15 0t0 4015 pipe
shepherd 1 root 11w FIFO 0,15 0t0 4015 pipe
shepherd 1 140 GC-marker root 9r FIFO 0,15 0t0 4015 pipe
shepherd 1 140 GC-marker root 11w FIFO 0,15 0t0 4015 pipe
shepherd 1 141 GC-marker root 9r FIFO 0,15 0t0 4015 pipe
shepherd 1 141 GC-marker root 11w FIFO 0,15 0t0 4015 pipe
shepherd 1 142 GC-marker root 9r FIFO 0,15 0t0 4015 pipe
shepherd 1 142 GC-marker root 11w FIFO 0,15 0t0 4015 pipe
shepherd 1 144 shepherd root 9r FIFO 0,15 0t0 4015 pipe
shepherd 1 144 shepherd root 11w FIFO 0,15 0t0 4015 pipe
My system configuration for this machine can be found here, and I last ran a 'guix pull' on June 21: https://github.com/jfrederickson/dotfiles/blob/master/guix/guix/system/machines/terracard/config.scm
Has anyone else run into this?
"Jonathan Frederickson" <jonathan@HIDDEN>:bug-guix@HIDDEN.
Full text available.bug-guix@HIDDEN:bug#72166; Package guix.
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