dd bs=10000000G SIGABRT

[oech3]

$ dd bs=10000000G
memory allocation of 10737418240000000 bytes failed
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

[oech3]

error[E0658]: use of unstable library feature `try_with_capacity`
   --> src/uu/dd/src/dd.rs:187:19
    |
187 |     let mut buf = Vec::try_with_capacity(buf_size)?; //vec![0u8; buf_size];
    |                   ^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: see issue #91913 <https://github.com/rust-lang/rust/issues/91913> for more information

[not4s]

Think try_reserve_exact is a stable function we can use here?

[oech3]

Can you avoid zero-fill cost with your suggestion?