hello-world exits with Init(Io(Os { code: 22, kind: InvalidInput, message: "Invalid argument" })) error

[pbeza]

I'm trying to run hello-world as described in the README but I'm getting the following error:

$ cargo run --target x86_64-fortanix-unknown-sgx
   Compiling hello-world v0.1.0 (/tmp/hello-world)
    Finished dev [unoptimized + debuginfo] target(s) in 0.08s
     Running `ftxsgx-runner-cargo target/x86_64-fortanix-unknown-sgx/debug/hello-world`
Error: Init(Io(Os { code: 22, kind: InvalidInput, message: "Invalid argument" }))

While loading SGX enclave
ERROR: while running "ftxsgx-runner" "target/x86_64-fortanix-unknown-sgx/debug/hello-world.sgxs" got exit status: 1

Any idea what I'm doing wrong?

Full log:

$ RUST_BACKTRACE=1 cargo run --target x86_64-fortanix-unknown-sgx
    Finished dev [unoptimized + debuginfo] target(s) in 0.00s
     Running `ftxsgx-runner-cargo target/x86_64-fortanix-unknown-sgx/debug/hello-world`
Error: Init(Io(Os { code: 22, kind: InvalidInput, message: "Invalid argument" }))

   0: failure::backtrace::Backtrace::new
   1: <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from
   2: sgxs_loaders::generic::Device<D>::load
   3: enclave_runner::loader::EnclaveBuilder::build
   4: ftxsgx_runner::main
   5: std::sys_common::backtrace::__rust_begin_short_backtrace
   6: std::rt::lang_start::{{closure}}
   7: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
             at /rustc/5680fa18feaa87f3ff04063800aec256c3d4b4be/library/core/src/ops/function.rs:284:13
      std::panicking::try::do_call
             at /rustc/5680fa18feaa87f3ff04063800aec256c3d4b4be/library/std/src/panicking.rs:500:40
      std::panicking::try
             at /rustc/5680fa18feaa87f3ff04063800aec256c3d4b4be/library/std/src/panicking.rs:464:19
      std::panic::catch_unwind
             at /rustc/5680fa18feaa87f3ff04063800aec256c3d4b4be/library/std/src/panic.rs:142:14
      std::rt::lang_start_internal::{{closure}}
             at /rustc/5680fa18feaa87f3ff04063800aec256c3d4b4be/library/std/src/rt.rs:148:48
      std::panicking::try::do_call
             at /rustc/5680fa18feaa87f3ff04063800aec256c3d4b4be/library/std/src/panicking.rs:500:40
      std::panicking::try
             at /rustc/5680fa18feaa87f3ff04063800aec256c3d4b4be/library/std/src/panicking.rs:464:19
      std::panic::catch_unwind
             at /rustc/5680fa18feaa87f3ff04063800aec256c3d4b4be/library/std/src/panic.rs:142:14
      std::rt::lang_start_internal
             at /rustc/5680fa18feaa87f3ff04063800aec256c3d4b4be/library/std/src/rt.rs:148:20
   8: main
   9: <unknown>
  10: __libc_start_main
  11: _start


While loading SGX enclave
ERROR: while running "ftxsgx-runner" "target/x86_64-fortanix-unknown-sgx/debug/hello-world.sgxs" got exit status: 1

sgx-detect output:

$ sudo $(which sgx-detect) --verbose
Detecting SGX, this may take a minute...
✔  SGX instruction set
  ✔  CPU support
  ✔  CPU configuration
  ✔  Enclave attributes
  ✔  Enclave Page Cache
  SGX features
    ✔  SGX2  ✔  EXINFO  ✘  ENCLV  ✘  OVERSUB  ✔  KSS
    Total EPC size: 32.0GiB (no integrity protection)
✔  Flexible launch control
  ✔  CPU support
  ✔  CPU configuration
  ✔  Able to launch production mode enclave
✘  SGX system software
  ✔  SGX kernel device (/dev/sgx_enclave)
  ✔  libsgx_enclave_common
  ✔  AESM service
  ✘  Able to launch enclaves
    ✘  Debug mode
    ✔  Production mode

🕮  SGX system software > Able to launch enclaves > Debug mode
The enclave could not be launched.

debug: failed to load report enclave
debug: cause: Failed to call EINIT.
debug: cause: I/O ctl failed.
debug: cause: Invalid argument (os error 22)

More information: https://edp.fortanix.com/docs/installation/help/#run-enclave-debug

[kostko]

It looks like this is related to the in-kernel SGX driver (a bug preventing debug enclaves from being launched?) and upgrading to Linux 6.5 may fix the issue.

At least that was the case when we encountered a similar issue so do try it out.

[pbeza]

Thank you for the quick reply! I was about to update my post with this link claiming what you just mentioned.

I will try to upgrade the kernel on the system I'm using which is Ubuntu 22.04.3 LTS (jammy).

[pbeza]

Unbelievable! Running:

sudo apt install linux-oem-22.04d

(that effectively installed Linux kernel version 6.5) and rebooting my machine worked! 🙌🏼

$ cargo new --bin hello-world
     Created binary (application) `hello-world` package
$ cd hello-world/
$ cargo run --target x86_64-fortanix-unknown-sgx
   Compiling hello-world v0.1.0 (/tmp/hello-world)
    Finished dev [unoptimized + debuginfo] target(s) in 0.53s
     Running `ftxsgx-runner-cargo target/x86_64-fortanix-unknown-sgx/debug/hello-world`
Hello, world!

sgx-detect is fixed now too:

$ sgx-detect
Detecting SGX, this may take a minute...
✔  SGX instruction set
  ✔  CPU support
  ✔  CPU configuration
  ✔  Enclave attributes
  ✔  Enclave Page Cache
  SGX features
    ✔  SGX2  ✔  EXINFO  ✘  ENCLV  ✘  OVERSUB  ✔  KSS
    Total EPC size: 32.0GiB (no integrity protection)
✔  Flexible launch control
  ✔  CPU support
  ？ CPU configuration
  ✔  Able to launch production mode enclave
✔  SGX system software
  ✔  SGX kernel device (/dev/sgx_enclave)
  ✔  libsgx_enclave_common
  ✔  AESM service
  ✔  Able to launch enclaves
    ✔  Debug mode
    ✔  Production mode
    ✔  Production mode (Intel whitelisted)

You're all set to start running SGX programs!

Thank you @kostko!

[jethrogb]

https://bugs.launchpad.net/ubuntu/+source/linux-signed-azure-5.15/+bug/2034745