Segmentation fault in rgw_rados.cc

Hello everyone, I m facing strange issue of segmentation fault in rados.cc inside `int RGWRados::put_linked_bucket_info()` when trying to create a new bucket. I m making a span inside this function with its parent_span as req_state->root_span (root_span is a data member of req_state).On checking the logs I found that my root_span is not initialized an it is throwing segmentation fault, but when I debug this same program with gdb I m not getting any segmentation fault, Strange. I dont find this function to be running parallel in which race condition might corrupt the variable. Side Note: Inside RGWRados I m accessing req_state by first getting RGWRadosStore and inside that I having req_state variable. And I m setting the RGWRadosStore req_state variable inside function RGWCreateBucket::init(). An idea why is this happening?