From: "Ludovic Courtès" <ludo@gnu.org>
To: Markus Nilsson <markusnilsson890@gmail.com>
Cc: 56519@debbugs.gnu.org
Subject: bug#56519: Shepherd non-deterministically fails to load the "guix-daemon" service after the "user-processes" service has been started
Date: Mon, 18 Jul 2022 14:54:01 +0200 [thread overview]
Message-ID: <87cze2zimu.fsf@gnu.org> (raw)
In-Reply-To: <CA+phM3JnBbA_0M16u-abNE_8n2dw3BssAca8igy2WF2fnqeMhg@mail.gmail.com> (Markus Nilsson's message of "Tue, 12 Jul 2022 13:07:00 +0000")
Hi Markus,
From the /var/log/messages excerpt you sent, it would seem that the root
cause is failing to device mapping for the “streetkid” storage:
Markus Nilsson <markusnilsson890@gmail.com> skribis:
> Jul 1 21:39:35 localhost vmunix: [ 16.150396] sd 6:0:1:0: Attached scsi generic sg6 type 0
> Jul 1 21:39:35 localhost vmunix: [ 16.157673] sd 6:0:0:0: [sdf] 625142448 512-byte logical blocks: (320 GB/298 GiB)
> Jul 1 21:39:35 localhost vmunix: [ 16.157689] sd 6:0:0:0: [sdf] 4096-byte physical blocks
> Jul 1 21:39:35 localhost vmunix: [ 16.195016] shepherd[1]: Service device-mapping-streetkid_VG_storage-streetkid_LV_home could not be started.
> Jul 1 21:39:35 localhost vmunix: [ 16.197048] shepherd[1]: Service file-system-/home depends on device-mapping-streetkid_VG_storage-streetkid_LV_home.
> Jul 1 21:39:35 localhost vmunix: [ 16.199307] shepherd[1]: Service file-system-/home could not be started.
> Jul 1 21:39:35 localhost vmunix: [ 16.203577] shepherd[1]: Service file-system-/dev/pts has been started.
> Jul 1 21:39:35 localhost vmunix: [ 16.206789] shepherd[1]: Service file-system-/sys/kernel/debug has been started.
> Jul 1 21:39:35 localhost vmunix: [ 16.209950] shepherd[1]: Service file-system-/dev/shm has been started.
> Jul 1 21:39:35 localhost vmunix: [ 16.212595] shepherd[1]: Service file-system-/sys/firmware/efi/efivars has been started.
> Jul 1 21:39:35 localhost vmunix: [ 16.215719] shepherd[1]: Service file-system-/gnu/store has been started.
[...]
> Jul 1 21:39:35 localhost vmunix: [ 17.481611] shepherd[1]: Service nscd could not be started.
> Jul 1 21:39:35 localhost vmunix: [ 17.499327] ppdev: user-space parallel port driver
> Jul 1 21:39:35 localhost vmunix: [ 17.691044] sdi: sdi1
> Jul 1 21:39:35 localhost vmunix: [ 17.949918] sd 6:0:3:0: [sdi] Attached SCSI disk
> Jul 1 21:39:35 localhost vmunix: [ 17.956933] shepherd[1]: Service device-mapping-streetkid_VG_storage-streetkid_LV_home could not be started.
> Jul 1 21:39:35 localhost vmunix: [ 17.958868] shepherd[1]: Service file-system-/home depends on device-mapping-streetkid_VG_storage-streetkid_LV_home.
> Jul 1 21:39:35 localhost vmunix: [ 17.960699] shepherd[1]: Service file-system-/home could not be started.
> Jul 1 21:39:35 localhost vmunix: [ 17.962778] shepherd[1]: Service file-systems depends on file-system-/home.
> Jul 1 21:39:35 localhost vmunix: [ 17.964868] shepherd[1]: Service file-systems could not be started.
> Jul 1 21:39:35 localhost vmunix: [ 17.966751] shepherd[1]: Service user-processes depends on file-systems.
> Jul 1 21:39:35 localhost vmunix: [ 17.968643] shepherd[1]: Service user-processes could not be started.
> Jul 1 21:39:35 localhost vmunix: [ 17.970712] shepherd[1]: Service guix-daemon depends on user-processes.
> Jul 1 21:39:35 localhost vmunix: [ 17.971359] shepherd[1]: Service guix-daemon could not be started.
That is: ‘device-mapping-streetkid_VG_storage-streetkid_LV_home’ fails
to start; shepherd tries to start other services, but they depend on it
so every time it fails with “Service X depends on
device-mapping-streetkid_VG_storage-streetkid_LV_home” followed by
“Service X could not be started”. Eventually, that propagates down to
‘user-processes’ and ‘guix-daemon’, both of which can’t be started.
You can see the dependency graph of Shepherd services with:
guix system shepherd-graph …/config.scm | xdot -
So it might not be a Shepherd or Guix issue per se, but rather something
related to that “streetkid” device. I couldn’t find hints in the log
though.
Ideas?
Thanks,
Ludo’.
next prev parent reply other threads:[~2022-07-18 12:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-12 13:07 bug#56519: Shepherd non-deterministically fails to load the "guix-daemon" service after the "user-processes" service has been started Markus Nilsson
2022-07-18 12:54 ` Ludovic Courtès [this message]
2022-07-26 2:48 ` Markus Nilsson
2022-08-01 13:56 ` Ludovic Courtès
2022-08-05 6:23 ` Markus Nilsson
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