Heikki Linnakangas escribió: > Zou Yong wrote: >> I was running postgres on a Linux with busybox. The autovacuum feature is >> turned on. I noticed that the autovacuum worker sent SIGUSR1 to pid 1 which >> is the init process and caused the system halt. > > Hmm. The postgres user shouldn't have permission to halt the system, > methinks.
Yeah, the reason this hasn't ever been seen is that normally we don't have permissions to signal init. My guess is that Zou Yang is running a system without users where everything runs as root. This fits the fact that it's running busybox: I guess it's an embedded system of some sort. >> I did some debugging and found that the root cause is the constant >> AutoVacNumSignals is not defined correctly. It should be (AutoVacRebalance + >> 1). > > Yeah, that's clearly a bug. Fixed, thanks. My fault. Thanks for the patch. -- Alvaro Herrera http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc. -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
