Re: [HACKERS] Our poll() based WaitLatch implementation is broken

2012-01-15 Thread Peter Geoghegan
On 15 January 2012 07:26, Peter Geoghegan pe...@2ndquadrant.com wrote: Build Postgres master, on Linux or another platform that will use the poll() implementation rather than the older select(). Send the Postmaster SIGKILL. Observe that the WAL Writer lives on, representing a denial of service

Re: [HACKERS] Our poll() based WaitLatch implementation is broken

2012-01-15 Thread Heikki Linnakangas
On 15.01.2012 09:26, Peter Geoghegan wrote: Build Postgres master, on Linux or another platform that will use the poll() implementation rather than the older select(). Send the Postmaster SIGKILL. Observe that the WAL Writer lives on, representing a denial of service as it stays attached to

[HACKERS] Our poll() based WaitLatch implementation is broken

2012-01-14 Thread Peter Geoghegan
Build Postgres master, on Linux or another platform that will use the poll() implementation rather than the older select(). Send the Postmaster SIGKILL. Observe that the WAL Writer lives on, representing a denial of service as it stays attached to shared memory, busy waiting (evident from the fact