Frederick Gotham wrote: > I don't think any code other than "libcrypto.so" is using the TPM2, and so > I don't know why I'm getting "device or resource busy" (considering I'm > using a global named mutex)". I see that there's also a TPM2 tcti called > "abrmd", and I'm not sure if this purpose is exactly what it's for. I tweaked my global mutex a bit and now it's working fine.