Jon Lapham <lapham@xxxxxxxxx> writes: > Tom Lane wrote: >> It would seem that maybe your kernel has a different idea of what EIDRM >> means than we do. You say this persists across a reboot? > I probably should have asked before doing this... but I just rebooted > and postgresql came up fine. I hope I didn't screw up the forensics. Well, we have a clue now anyway: it's got something to do with the kernel unexpectedly returning EIDRM. Just for completeness, could we see the output of "ipcs -a" now? regards, tom lane