Intermittently getting cannot allocate memory error while decrypting a file via python gnupg package
To Reproduce
Initialize the gpg agent and decrypt the file :
gpg_obj = gnupg.GPG(gnupghome=os.path.expanduser('~'))
gpg_obj.encoding = 'utf-8'
gpg_obj.decrypt_file()
Exact Error
\ngpg: public key decryption failed: Cannot allocate memory\n[GNUPG:] ERROR pkdecrypt_failed 67141718\n[GNUPG:] BEGIN_DECRYPTION\n[GNUPG:] DECRYPTION_FAILED\ngpg: decryption failed: No secret key\n[GNUPG:] END_DECRYPTION\n
Environment
OS, including version : Ubuntu 20.04.6 LTS
Version of this library: python-gnupg==0.5.0
Version of GnuPG: gpg (GnuPG) 2.2.19, libgcrypt 1.8.5
Note : Sufficient RAM is available (around 14/32GB is available) when this issue occurrs
Saw here that using the option --auto-expand-secmem has solved the issue for lot of people. However I could not see anything mentioned about how to use this option via the python gnupg package. And I am facing a critical issue regarding this. It would be great if I can get help reg:
- How can I use this option in the gnupg package
- Is there a way to limit the max memory being used via this option since in the worst case I want to avoid this consuming the majority of system's RAM