Hi, On 2021-05-06 15:22:02 -0400, Tom Lane wrote: > Andres Freund <and...@anarazel.de> writes: > > we allow generating backtraces in all kind of places, including > > e.g. some inside critical sections via backtrace_functions. > > If there's an elog call inside a critical section, that seems > like a problem already. Are you sure that there are any such?
There's several, yes. In xlog.c there's quite a few that are gated by wal_debug being enabled. But also a few without that, e.g. XLogFileInit() logging elog(DEBUG1, "creating and filling new WAL file"); and XLogFileInit() can be called within a critical section. Greetings, Andres Freund