snapd

Snapd `internal error: connection "[slot] [plug]" not found in state`

Bug #1882957 reported by Joseph Borg
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
snapd
Fix Committed
High
Unassigned

Bug Description

I've been developing a test snap. During this, I had a broken `connect-plug` hook which failed for an expected reason.

However, this as left snapd in a broken state as I cannot remove the snap, nor the connection.

➜ snap remove [snap_1]
error: cannot perform the following tasks:
- Disconnect [snap_1]:[slot] from [snap_2]:[plug] (internal error: connection "[snap_1]:[slot] [snap_2]:[plug]" not found in state)

➜ snap disconnect [snap_1]:[slot] [snap_2]:[plug]
error: cannot perform the following tasks:
- Disconnect [snap_1]:[slot] from [snap_2]:[plug] (internal error: connection "[snap_1]:[slot] [snap_2]:[plug]" not found in state)

Samuele Pedroni (pedronis)
affects: snappy → snapd
Changed in snapd:
status: New → Triaged
importance: Undecided → High
Paweł Stołowski (stolowski)
Changed in snapd:
assignee: nobody → Paweł Stołowski (stolowski)
Revision history for this message
Paweł Stołowski (stolowski) wrote :

@Joseph Thanks for the report! Did you use 'snap try' when working on this snap?

Revision history for this message
Paweł Stołowski (stolowski) wrote :

I've managed to reproduce it without snap try (nonetheless please let me know if you used snap try).

Changed in snapd:
status: Triaged → Confirmed
Revision history for this message
Joseph Borg (joeborg) wrote :

Hey Pavel,

I did not, is it something should try? That wasn't even mean to be a pun :).

Thanks,
Joe

Revision history for this message
Paweł Stołowski (stolowski) wrote :

@Joseph No, I was just looking for ways to reproduce and what execution paths to focus on. Don't worry about snap try.

Paweł Stołowski (stolowski)
Changed in snapd:
status: Confirmed → In Progress
Revision history for this message
Paweł Stołowski (stolowski) wrote :

Proposed a fix: https://github.com/snapcore/snapd/pull/8914

As a workaround you can restart snapd, this should let you remove this snap.

Paweł Stołowski (stolowski)
Changed in snapd:
status: In Progress → Fix Committed
Revision history for this message
Tom Chiverton (bugs-launchpad-net-falkensweb) wrote :

Workaround does not work :
```
falken@wopr:/var/cache$ systemctl restart snapd
falken@wopr:/var/cache$ sudo snap remove --purge chromium
error: cannot perform the following tasks:
- Remove data for snap "chromium" (2424) (failed to remove snap "chromium" base directory: remove /var/snap/chromium: directory not empty)
```

Paweł Stołowski (stolowski)
Changed in snapd:
assignee: Paweł Stołowski (stolowski) → nobody
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