Can the requisite dependecies have debug turned on and the output captured? Is this on bare metal, a VM, a cloud host, or is this error appearing regardless?<div><br></div><div>--John<br><br>On Friday, June 10, 2016, Patrick Schleizer <<a href="mailto:adrelanos@riseup.net">adrelanos@riseup.net</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello Damian,<br>
<br>
I would very much appreciate your help. I may have a misunderstanding of<br>
how python-stem works or perhaps found a bug. It is race condition<br>
happening in Qubes-Whonix related to backups. I might be able to<br>
reproduce it in plain Debian, but perhaps you already know what is going<br>
on here.<br>
<br>
Steps to reproduce:<br>
<br>
sudo su<br>
<br>
service tor@default stop<br>
<br>
rm /var/lib/tor/*<br>
<br>
run a small python-stem based script [1] as user "user":<br>
<br>
/usr/lib/anon-shared-helper-scripts/tor_bootstrap_check.py 127.0.0.1 9050 1<br>
<br>
Unexpected behavior:<br>
<br>
sudo ls -la /var/lib/tor<br>
<br>
total 10988<br>
drwx--S--- 3 sdwdate kvm 4096 Jun 10 20:28 .<br>
drwxr-xr-x 50 root root 4096 Jun 10 20:50 ..<br>
-rw------- 1 sdwdate kvm 20442 Jun 5 05:14 cached-certs<br>
-rw------- 1 sdwdate kvm 1405911 Jun 10 20:25 cached-microdesc-consensus<br>
-rw------- 1 sdwdate kvm 7440585 Jun 6 19:11 cached-microdescs<br>
-rw------- 1 sdwdate kvm 2359137 Jun 10 20:25 cached-microdescs.new<br>
-rw------- 1 sdwdate kvm 0 Jun 10 18:58 lock<br>
-rw------- 1 sdwdate kvm 3535 Jun 10 20:28 state<br>
drwxrwsr-x 2 sdwdate kvm 4096 Jun 10 18:31 .tor<br>
<br>
Why of everything it picks sdwdate:kvm as owner:group is a mystery to<br>
me. Folder /var/lib/tor/.tor is entirely undesired. Worse are the messed<br>
up folder permissions.<br>
<br>
python-stem should not result in changes in the file system? It should<br>
just connect to Tor using ControlPort / ControlSocket? How can these<br>
permission issues be avoided?<br>
<br>
By answering to this mail, your reply will be shown on the whonix-devel<br>
public mailing list for others to profit from it.<br>
<br>
Cheers,<br>
Patrick<br>
<br>
[1]<br>
<a href="https://github.com/Whonix/anon-shared-helper-scripts/blob/master/usr/lib/anon-shared-helper-scripts/tor_bootstrap_check.py" target="_blank">https://github.com/Whonix/anon-shared-helper-scripts/blob/master/usr/lib/anon-shared-helper-scripts/tor_bootstrap_check.py</a><br>
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