We are using zymkey as SSL engine for curl to make HTTPS requests (with the flag --engine zymkey_ssl). It worked nicely at low volume but starts to fail when we have a lot of concurrent requests.
curl: (66) Failed to initialise SSL Engine 'zymkey_ssl':
9|tester | error:2506406A:DSO support routines:dlfcn_bind_func:could not bind to the requested symbol name
Is it a known limitation of the hardware/driver?