http://doxygen.postgresql.org/xlog_8c_source.html#l08197
On line 8197 of xlog.c: 08194 /* Get a local copy of the last safe checkpoint record. */ 08195 SpinLockAcquire(&xlogctl->info_lck); 08196 lastCheckPointRecPtr = xlogctl->lastCheckPointRecPtr; 08197 memcpy(&lastCheckPoint, &XLogCtl->lastCheckPoint, sizeof(CheckPoint)); 08198 SpinLockRelease(&xlogctl->info_lck); Note the use of capital XLogCtl->lastCheckPoint, which is not the volatile pointer. I found this while scouring the code trying to figure out Bug #6291, which is the (to my latest knowledge) is when the epoch is not incremented (sometimes) when passing wraparound. -- fdr -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
