Latest docker version (as of 2023-09-01) fails to spawn worker #1459

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MrUnknownDE · 2026-04-06T01:54:36+02:00

MrUnknownDE commented

2026-04-06 01:54:36 +02:00

Originally created by @phormix on 9/6/2023

Subject of the issue

Docker version (1.29.2: latest, pulled from 2023-09-01) fails. Logs indicate an issue spawning worker threads per error (continual)

thread 'main' panicked at 'OS can't spawn worker thread: Operation not permitted (os error 1)', /root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.31.0/src/runtime/scheduler/multi_thread/worker.rs:447:13
note: run with RUST_BACKTRACE=1 environment variable to display a backtrace

Deployment environment

Debian Bookworm with kernel 6.1.0-11-amd64

vaultwarden version: 1.29.2

Install method: Docker image
Clients used: Web vault, Android
Reverse proxy and version: Apache 2.4.57/debian
MySQL/MariaDB or PostgreSQL version: N/A (in docker image)
Other relevant details:

Steps to reproduce

docker container start vaultwarden

Expected behaviour

container normal startup

Actual behaviour

Thread failed due to error

Troubleshooting data

This error is repeated in the logs (per "docker logs vaultwarden")

thread 'main' panicked at 'OS can't spawn worker thread: Operation not permitted (os error 1)', /root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.31.0/src/runtime/scheduler/multi_thread/worker.rs:447:13
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

*Originally created by @phormix on 9/6/2023*   ### Subject of the issue Docker version (1.29.2: latest, pulled from 2023-09-01) fails. Logs indicate an issue spawning worker threads per error (continual) thread 'main' panicked at 'OS can't spawn worker thread: Operation not permitted (os error 1)', /root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.31.0/src/runtime/scheduler/multi_thread/worker.rs:447:13 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace ### Deployment environment Debian Bookworm with kernel 6.1.0-11-amd64     * vaultwarden version: 1.29.2  * Install method: Docker image * Clients used: Web vault, Android * Reverse proxy and version: Apache 2.4.57/debian * MySQL/MariaDB or PostgreSQL version: N/A (in docker image) * Other relevant details: ### Steps to reproduce docker container start vaultwarden ### Expected behaviour container normal startup ### Actual behaviour Thread failed due to error ### Troubleshooting data  This error is repeated in the logs (per "docker logs vaultwarden") ``` thread 'main' panicked at 'OS can't spawn worker thread: Operation not permitted (os error 1)', /root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.31.0/src/runtime/scheduler/multi_thread/worker.rs:447:13 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace ```

MrUnknownDE closed this issue

2026-04-06 01:54:36 +02:00

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Reference: github/vaultwarden#1459