Locking broken in gnupg 1.4.2 ?

[Jørgen Thomsen]

I frequently get missing signatures and I have traced it down to the fact that
several instances of the program is running simultaneously:

secmem usage: 2464/2464 bytes in 7/7 blocks of pool 2464/32768
gpg: fatal: can't read `/home/jth/.gnupg/random_seed': No such file or directory

Shouldn't there be some locking mechanism to take care of this?

I use calls like this:

/usr/bin/gpg --lock-once --default-key yyyyyyyy --pgp8 --batch --passphrase-fd 0
--clearsign "inputfile" <xxxx

- Jørgen Thomsen