/dev/urandom closed by save-lisp-and-die about ironclad

[glv2]

The stream for "/dev/urandom" gets opened the first time some random data is requested, for example with random-data, random-bits or strong-random. The error you get happens when using save-lisp-and-die in a session where some random data has already been requested from Ironclad, because save-lisp-and-die closes the stream, but in a strange way.
Trying to read data from this closed stream throws a SB-INT:CLOSED-SAVED-STREAM-ERROR error, however calling open-stream-p on it returns T. Maybe that's a bug in SBCL, I'll ask the developers...

For the moment I can think of two workarounds:

1. If that's possible in your case, use save-lisp-and-die in a session where no random data has been requested from Ironclad yet.
2. Run (progn (close ironclad::*os-prng-stream*) (setf ironclad::*os-prng-stream* nil)) just before calling save-lisp-and-die.

[glv2]

Using Ironclad >= 0.56 and SBCL >= 2.1.8 should solve the issue without the need for a workaround.

[K1D77A]

Thanks 👍