prem@mazunetworks.com (Prem Gopalan) writes:
> The dying process is postmaster. After these crashes the server is
> missing from ps and no more new connections are possible. The backend
> processes stay on till their connections close.
That behavior does sound like a postmaster crash --- but all the stack
traces you show are clearly in backend code. A backend crash ought not
take out the postmaster. So something fairly odd is going on here.
What if anything shows up in the postmaster's stderr log when this
happens?
regards, tom lane