Christian Sengstock <csengstock@xxxxxxxxx> writes: > to save the database on a filesystem basis i stopped the postgres server and > tried to tar the entire pgdata directory. this process stopped with a > "segmentation fault" during the tar process. So there's something wrong beyond just postgres ... > the server is running, and i can connect with another psql client, but the > drop table process is still present. ps aux shows > postgres 5548 0.0 0.8 16420 4548 ? D 07:58 0:00 postgres: postgres > wlan [local] DROP TABLE > i cannot kill it with kill -9, and also i'm not sure if i should. maybe the > database is not running after it at all? A process stuck in an unkillable disk wait is a pretty common symptom of low-level problems. There might be a disk hardware issue --- have you looked into the kernel message log on the machine? regards, tom lane