runtime: disable io-uring on EPERM (#7724)

2026-08-16 00:00:12 +02:00 · 2025-11-08 17:13:12 +08:00
parent 62ecff895a
commit 2bf80f0ac6
1 changed files with 7 additions and 0 deletions
@@ -194,6 +194,13 @@ impl Handle {
                    self.set_uring_state(State::Unsupported);
                    Ok(false)
                }
+                // If we get EPERM, io-uring syscalls may be blocked (for example, by seccomp).
+                // In this case, we try to fall back to spawn_blocking for this and future operations.
+                // See also: https://github.com/tokio-rs/tokio/issues/7691
+                Err(e) if e.raw_os_error() == Some(libc::EPERM) => {
+                    self.set_uring_state(State::Unsupported);
+                    Ok(false)
+                }
                // For other system errors, we just return it.
                Err(e) => Err(e),
            },