SLOG-120 — A process cannot terminate its logging to memory correctly
It is possible to perform logging to a memory buffer (in addition to normal log). It is faster than the conventional logging to a file or syslog and the messages are stored in a buffer with fixed size, old messages being rewritten by the new ones. The buffer is made accessible as a file using the technique of memory mapped files. The memory log of each process is stored in a separate file and deleted upon normal process exit. When the process exits with an error, its memory log is retained. This message informs that the logging buffer cannot be unmapped from the memory for some reason.