Commits on Nov 3, 2023

1. dlopen: make error handling thread safe …

   The dlerror() value is stored in thread local storage and thus checking
   the error from go code is not safe because go can schedule goroutines
   on any other thread at any time. This means it is possible that between
   the dlsym() or dlclose() call the code get moved to another thread and
   thus the dlerror() value is not what we expect. Instead because we read
   now from another thread it will be an error from a different call.
   
   A test is added which without this fix is able to reproduce the
   problem somewhat reliably.
   
   This issue was observed in the podman CI[1] which uses the sdjournal
   API.
   
   [1] containers/podman#20569
   
   Signed-off-by: Paul Holzinger <pholzing@redhat.com>

   

   Luap99 committed Nov 3, 2023
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