Bug 76193 - systemd-nspawn: Freezes when switching --link-journal
Summary: systemd-nspawn: Freezes when switching --link-journal
Alias: None
Product: systemd
Classification: Unclassified
Component: general (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Djalal Harouni
QA Contact: systemd-bugs
Depends on:
Reported: 2014-03-15 08:22 UTC by Tobias Hunger
Modified: 2014-05-25 04:58 UTC (History)
2 users (show)

See Also:
i915 platform:
i915 features:


Description Tobias Hunger 2014-03-15 08:22:57 UTC
Systemd-nspawn freezes when switching --link-journal settings.

Steps to reproduce:
1) Run "systemd-nspawn --directory=/some/dir --boot --link-journal=host"
2) Quit that VM (I used ^]^]^])
3) Run "systemd-nspawn --directory=/some/dir --boot --link-journal=guest"

Expected result: A VM is started with the journal in guest mode.

Actual result: The VM is not started, systemd-nspawn stops responding. I need kill -9 to stop the systemd-nspawn.

The order of host/guest mode is not important.

The problem persists till /var/log/journal/{VM_machine_id} is deleted.
Comment 1 Djalal Harouni 2014-04-10 00:24:20 UTC
Hi Tobias,

Thank you for reporting, I'm able to reproduce and I've located the problem!

There is also another bug that keeps systemd-nspawn blocking, thus the kill -9

I'll send patches to the mailing list

Comment 2 Djalal Harouni 2014-04-11 00:49:20 UTC
I've just posted patches:


systemd-nspawn should be able to terminate cleanly on errors, for the bind mount I'm not sure we'll see what others think!

Comment 3 Zbigniew Jedrzejewski-Szmek 2014-05-25 04:58:56 UTC
Patch applied as http://cgit.freedesktop.org/systemd/systemd/commit/?id=e866af3a. The issue seems fixed in my testing.

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