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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - btrfs_subvol_snapshot() broken"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90803">90803</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>btrfs_subvol_snapshot() broken
</td>
</tr>
<tr>
<th>Product</th>
<td>systemd
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
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<th>Component</th>
<td>general
</td>
</tr>
<tr>
<th>Assignee</th>
<td>systemd-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>dh.herrmann@gmail.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>systemd-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=116211" name="attach_116211" title="strace log">attachment 116211</a> <a href="attachment.cgi?id=116211&action=edit" title="strace log">[details]</a></span>
strace log
Hi
Running `systemd-nspawn -D / -xb` produces the following error for me:
david@david-t2 ~/dev/systemd $ sudo ./systemd-nspawn -D / -xb
Failed to create snapshot /.#a726c057b3fe24c6 from /: No such file or
directory
I tracked this down to btrfs_subvol_snapshot(), and subvol_snapshot_children()
in particular. If called with BTRFS_SNAPSHOT_RECURSIVE, it fails in the
recursion step.
My root system consists of the root snapshot at '/', and a btrfs snapshot at
'/var/lib/machines'. The strace output is attached.
Thanks
David</pre>
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