Hi, When using the user-mode library, I found that calling ecrt_master_deactivate does not properly release the domain memory mapping. In particular, the following sequence:
- ecrt_request_master - (domain set up) - ecrt_master_activate - ecrt_master_deactivate - (domain set up) - ecrt_master_activate - ecrt_master_deactivate - ecrt_master_release Does *not* result in actually releasing the master kernel module -- the master thread remains running and the master module cannot be unloaded until the application process terminates. It's especially noticeable when the first domain is non-empty and the second is empty -- during ecrt_master_release the call to munmap will fail with EINVAL because master->process_data is non-NULL but master->process_data_size is 0. The attached patch resolves this by moving the munmap to ecrt_master_deactivate instead of ecrt_master_release. Regards, Gavin Lambert
lib-deactivate.patch
Description: Binary data
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