Re: Failing iotest 206

[Eric Blake <eblake@redhat.com>]

On Mon, Jul 19, 2021 at 10:06:01AM +0200, Thomas Huth wrote:
>  Hi,
> 
> iotest 206 fails for me with:
> 

> --- 206.out
> +++ 206.out.bad
> @@ -99,55 +99,19 @@
> 
>  {"execute": "blockdev-create", "arguments": {"job-id": "job0", "options":
> {"driver": "qcow2", "encrypt": {"cipher-alg": "twofish-128", "cipher-mode":
> "ctr", "format": "luks", "hash-alg": "sha1", "iter-time": 10, "ivgen-alg":
> "plain64", "ivgen-hash-alg": "md5", "key-secret": "keysec0"}, "file":
> {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2"}, "size": 33554432}}}
>  {"return": {}}
> +Job failed: Unsupported cipher algorithm twofish-128 with ctr mode
>  {"execute": "job-dismiss", "arguments": {"id": "job0"}}
>  {"return": {}}

> 
> Looks like it is missing a check for the availability of the corresponding
> crypto stuff? Does anybody got a clue how to fix this?

What system is this on? Which crypto library versions are installed?
I suspect this is related to Dan's effort to speed up crypto by
favoring gnutls over nettle, where the switch in favored libraries
failed to account for whether twofish-128 is supported?

https://lists.gnu.org/archive/html/qemu-devel/2021-07/msg03886.html

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org