RGW pod crashing with Segmentation Fault while resharding a bucket in an OCS 4 cluster.

Issue

• RGW pod crashing with Segmentation Fault while resharding a bucket in an OCS 4 cluster.

• RGW pod crashing with following stack trace

  *** Caught signal (Segmentation fault) **
   in thread 7f16ab942700 thread_name:rgw_reshard
   ceph version 14.2.4-69.el8cp (8d72f97ca776c758a7ce0009959ca3044cd0b9c2) nautilus (stable)
   1: (()+0x12dc0) [0x7f16d7c54dc0]
   2: (rgw_get_system_obj(RGWRados*, RGWSysObjectCtx&, rgw_pool const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, ceph::buffer::v14_2_0::list&, RGWObjVersionTracker*, std::chrono::time_point<ceph::time_detail::real_clock, std::chrono::duration<unsigned long, std::ratio<1l, 1000000000l> > >*, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, ceph::buffer::v14_2_0::list, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, ceph::buffer::v14_2_0::list> > >*, rgw_cache_entry_info*, boost::optional<obj_version>)+0xb3) [0x555f3d87eb73]
   3: (RGWRados::get_bucket_entrypoint_info(RGWSysObjectCtx&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, RGWBucketEntryPoint&, RGWObjVersionTracker*, std::chrono::time_point<ceph::time_detail::real_clock, std::chrono::duration<unsigned long, std::ratio<1l, 1000000000l> > >*, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, ceph::buffer::v14_2_0::list, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, ceph::buffer::v14_2_0::list> > >*, rgw_cache_entry_info*, boost::optional<obj_version>)+0x16f) [0x555f3d7e12df]
   4: (rgw_link_bucket(RGWRados*, rgw_user const&, rgw_bucket&, std::chrono::time_point<ceph::time_detail::real_clock, std::chrono::duration<unsigned long, std::ratio<1l, 1000000000l> > >, bool, rgw_ep_info*)+0x802) [0x555f3d5db7c2]
   5: (RGWBucketReshard::do_reshard(int, RGWBucketInfo&, int, bool, std::ostream*, ceph::Formatter*)+0x1a71) [0x555f3d741471]
   6: (RGWBucketReshard::execute(int, int, bool, std::ostream*, ceph::Formatter*, RGWReshard*)+0x550) [0x555f3d742020]
   7: (RGWReshard::process_single_logshard(int)+0x301) [0x555f3d742ce1]
   8: (RGWReshard::process_all_logshards()+0x198) [0x555f3d743fd8]
   9: (RGWReshard::ReshardWorker::entry()+0x249) [0x555f3d744379]
   10: (()+0x82de) [0x7f16d7c4a2de]
   11: (clone()+0x43) [0x7f16d704c133]
   in thread 7f16ab942700 thread_name:rgw_reshard