[tor-bugs] #24715 [Core Tor/Tor]: Job for tor.service failed when /var/run is tmpfs
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Fri Dec 22 16:13:59 UTC 2017
#24715: Job for tor.service failed when /var/run is tmpfs
------------------------------+-----------------------------------------
Reporter: vilhelmgray | Owner: (none)
Type: enhancement | Status: new
Priority: Medium | Milestone:
Component: Core Tor/Tor | Version: Tor: 0.3.2.6-alpha
Severity: Normal | Keywords: tmpfs, tor.service, systemd
Actual Points: | Parent ID:
Points: | Reviewer:
Sponsor: |
------------------------------+-----------------------------------------
ISSUE SUMMARY
=============
For this test I'm running Tor 0.3.2.6-alpha (git-87012d076ef58bb9) on
Gentoo Linux. On my system, the /var/run/tor directory does not exist, and
/var/run is a link to /run which is mounted as tmpfs:
tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755)
Attempting to start tor using tor.service fails:
vilhelm at sophia ~ $ sudo systemctl restart tor
Job for tor.service failed because the control process exited with
error code.
See "systemctl status tor.service" and "journalctl -xe" for details.
vilhelm at sophia ~ $ sudo systemctl status tor.service
● tor.service - Anonymizing overlay network for TCP
Loaded: loaded (/lib/systemd/system/tor.service; enabled; vendor
preset: disabled)
Active: failed (Result: exit-code) since Wed 2017-12-06 09:08:19
EST; 4s ago
Process: 12244 ExecStart=/usr/bin/tor -f /etc/tor/torrc
(code=exited, status=1/FAILURE)
Process: 12243 ExecStartPre=/usr/bin/tor -f /etc/tor/torrc --verify-
config (code=exited, status=0/SUCCESS)
Main PID: 12244 (code=exited, status=1/FAILURE)
Dec 06 09:08:19 sophia systemd[1]: tor.service: Service hold-off time
over, scheduling restart.
Dec 06 09:08:19 sophia systemd[1]: tor.service: Scheduled restart job,
restart counter is at 5.
Dec 06 09:08:19 sophia systemd[1]: Stopped Anonymizing overlay network
for TCP.
Dec 06 09:08:19 sophia systemd[1]: tor.service: Start request repeated
too quickly.
Dec 06 09:08:19 sophia systemd[1]: tor.service: Failed with result
'exit-code'.
Dec 06 09:08:19 sophia systemd[1]: Failed to start Anonymizing overlay
network for TCP.
vilhelm at sophia ~ $ sudo journalctl -xe
-- Support: https://lists.freedesktop.org/mailman/listinfo/systemd-
devel
--
-- Unit tor.service has begun starting up.
Dec 06 09:08:18 sophia tor[12243]: Dec 06 09:08:18.595 [notice] Tor
0.3.2.6-alpha (git-87012d076ef58bb9) running on Linux with Libevent
2.1.8-stable, OpenSSL 1.0.2m, Zlib 1.2.11, Liblzma 5.2.3, and Libzstd N/A.
Dec 06 09:08:18 sophia tor[12243]: Dec 06 09:08:18.595 [notice] Tor
can't help you if you use it wrong! Learn how to be safe at
https://www.torproject.org/download/download#warning
Dec 06 09:08:18 sophia tor[12243]: Dec 06 09:08:18.595 [notice] This
version is not a stable Tor release. Expect more bugs than usual.
Dec 06 09:08:18 sophia tor[12243]: Dec 06 09:08:18.596 [notice] Read
configuration file "/etc/tor/torrc".
Dec 06 09:08:18 sophia tor[12243]: Dec 06 09:08:18.597 [notice] Based
on detected system memory, MaxMemInQueues is set to 8192 MB. You can
override this by setting MaxMemInQueues by hand.
Dec 06 09:08:18 sophia tor[12243]: Configuration was valid
Dec 06 09:08:19 sophia tor[12244]: Dec 06 09:08:19.036 [notice] Tor
0.3.2.6-alpha (git-87012d076ef58bb9) running on Linux with Libevent
2.1.8-stable, OpenSSL 1.0.2m, Zlib 1.2.11, Liblzma 5.2.3, and Libzstd N/A.
Dec 06 09:08:19 sophia tor[12244]: Dec 06 09:08:19.036 [notice] Tor
can't help you if you use it wrong! Learn how to be safe at
https://www.torproject.org/download/download#warning
Dec 06 09:08:19 sophia tor[12244]: Dec 06 09:08:19.036 [notice] This
version is not a stable Tor release. Expect more bugs than usual.
Dec 06 09:08:19 sophia tor[12244]: Dec 06 09:08:19.036 [notice] Read
configuration file "/etc/tor/torrc".
Dec 06 09:08:19 sophia tor[12244]: Dec 06 09:08:19.038 [notice] Based
on detected system memory, MaxMemInQueues is set to 8192 MB. You can
override this by setting MaxMemInQueues by hand.
Dec 06 09:08:19 sophia tor[12244]: Dec 06 09:08:19.038 [notice]
Scheduler type KIST has been enabled.
Dec 06 09:08:19 sophia tor[12244]: Dec 06 09:08:19.038 [notice]
Opening OR listener on 0.0.0.0:443
Dec 06 09:08:19 sophia tor[12244]: Dec 06 09:08:19.038 [notice]
Opening Extended OR listener on 127.0.0.1:0
Dec 06 09:08:19 sophia tor[12244]: Dec 06 09:08:19.038 [notice]
Extended OR listener listening on port 35193.
Dec 06 09:08:19 sophia Tor[12244]: Tor 0.3.2.6-alpha (git-
87012d076ef58bb9) running on Linux with Libevent 2.1.8-stable, OpenSSL
1.0.2m, Zlib 1.2.11, Liblzma 5.2.3, and Libzstd N/A.
Dec 06 09:08:19 sophia Tor[12244]: Tor can't help you if you use it
wrong! Learn how to be safe at
https://www.torproject.org/download/download#warning
Dec 06 09:08:19 sophia Tor[12244]: This version is not a stable Tor
release. Expect more bugs than usual.
Dec 06 09:08:19 sophia Tor[12244]: Read configuration file
"/etc/tor/torrc".
Dec 06 09:08:19 sophia Tor[12244]: Based on detected system memory,
MaxMemInQueues is set to 8192 MB. You can override this by setting
MaxMemInQueues by hand.
Dec 06 09:08:19 sophia Tor[12244]: Scheduler type KIST has been
enabled.
Dec 06 09:08:19 sophia Tor[12244]: Opening OR listener on 0.0.0.0:443
Dec 06 09:08:19 sophia Tor[12244]: Opening Extended OR listener on
127.0.0.1:0
Dec 06 09:08:19 sophia Tor[12244]: Extended OR listener listening on
port 35193.
Dec 06 09:08:19 sophia Tor[12244]: Unable to open
"/var/run/tor/tor.pid" for writing: No such file or directory
Dec 06 09:08:19 sophia Tor[12244]: Unable to write PIDFile
"/var/run/tor/tor.pid"
Dec 06 09:08:19 sophia Tor[12244]: set_options(): Bug: Acting on
config options left us in a broken state. Dying. (on Tor 0.3.2.6-alpha
87012d076ef58bb9)
Dec 06 09:08:19 sophia systemd[1]: tor.service: Main process exited,
code=exited, status=1/FAILURE
Dec 06 09:08:19 sophia systemd[1]: tor.service: Failed with result
'exit-code'.
Dec 06 09:08:19 sophia systemd[1]: Failed to start Anonymizing overlay
network for TCP.
-- Subject: Unit tor.service has failed
-- Defined-By: systemd
-- Support: https://lists.freedesktop.org/mailman/listinfo/systemd-
devel
--
-- Unit tor.service has failed.
--
-- The result is RESULT.
Dec 06 09:08:19 sophia systemd[1]: tor.service: Service hold-off time
over, scheduling restart.
Dec 06 09:08:19 sophia systemd[1]: tor.service: Scheduled restart job,
restart counter is at 5.
Dec 06 09:08:19 sophia systemd[1]: Stopped Anonymizing overlay network
for TCP.
-- Subject: Unit tor.service has finished shutting down
-- Defined-By: systemd
-- Support: https://lists.freedesktop.org/mailman/listinfo/systemd-
devel
--
-- Unit tor.service has finished shutting down.
Dec 06 09:08:19 sophia systemd[1]: tor.service: Start request repeated
too quickly.
Dec 06 09:08:19 sophia systemd[1]: tor.service: Failed with result
'exit-code'.
Dec 06 09:08:19 sophia systemd[1]: Failed to start Anonymizing overlay
network for TCP.
-- Subject: Unit tor.service has failed
-- Defined-By: systemd
-- Support: https://lists.freedesktop.org/mailman/listinfo/systemd-
devel
--
-- Unit tor.service has failed.
--
-- The result is RESULT.
SUSPECTED CAUSE
===============
The issue appears to result from the missing /var/run/tor directory and a
lack of write permission to create the /var/run/tor/tor.pid PIDFile. I can
manually create a /var/run/tor directory, but it will be gone if the
system restarts since /var/run is tmpfs. The /var/run/tor directory and
appropriate permissions should be configured in the tor.service file by
default.
PROPOSED SOLUTION
=================
If I add the following lines to the /lib64/systemd/system/tor.service file
the issue is resolved:
Group=tor
RuntimeDirectory=tor
RuntimeDirectoryMode=0770
I suggest adding these lines to the Tor source code
contrib/dist/tor.service.in file so that the installed tor.service file
will have the configuration lines to automatically create a /var/run/tor
directory with the necessary permissions.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24715>
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