openai/codex · error · ExecPolicyUpdateError

failed to join blocking rules update task: {source}

Error message

failed to join blocking rules update task: {source}

What it means

Error "failed to join blocking rules update task: {source}" thrown in openai/codex.

Source

Thrown at codex-rs/core/src/exec_policy.rs:264

    #[error("failed to read rules file {path}: {source}")]
    ReadFile {
        path: PathBuf,
        source: std::io::Error,
    },

    #[error("failed to parse rules file {path}: {source}")]
    ParsePolicy {
        path: String,
        source: codex_execpolicy::Error,
    },
}

#[derive(Debug, Error)]
pub enum ExecPolicyUpdateError {
    #[error("failed to update rules file {path}: {source}")]
    AppendRule { path: PathBuf, source: AmendError },

    #[error("failed to join blocking rules update task: {source}")]
    JoinBlockingTask { source: tokio::task::JoinError },

    #[error("failed to update in-memory rules: {source}")]
    AddRule {
        #[from]
        source: ExecPolicyRuleError,
    },
}

pub(crate) struct ExecPolicyManager {
    policy: ArcSwap<Policy>,
    update_lock: Semaphore,
}

pub(crate) struct ExecApprovalRequest<'a> {
    pub(crate) command: &'a [String],
    pub(crate) approval_policy: AskForApproval,
    pub(crate) permission_profile: PermissionProfile,

View on GitHub (pinned to 339751715c)

Solutions

1. Retry the rules update; the blocking task failed to join, which indicates an internal runtime problem.

When it happens

Trigger: Thrown at codex-rs/core/src/exec_policy.rs:264 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of openai/codex@339751715c (2026-08-25). Data as JSON: /api/errors/86771c9fd5fefee1. Report an issue: GitHub.