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

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This commit is contained in:
Motoyuki Kimura
2025-11-08 17:13:12 +08:00
committed by GitHub
parent 62ecff895a
commit 2bf80f0ac6
1 changed files with 7 additions and 0 deletions
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tokio/src/runtime/io/driver/uring.rs
+7
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@@ -194,6 +194,13 @@ impl Handle {
self.set_uring_state(State::Unsupported); self.set_uring_state(State::Unsupported);
Ok(false) 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. // For other system errors, we just return it.
Err(e) => Err(e), Err(e) => Err(e),
}, },