Wierd panic with 7.4.7

Hello,

Any thoughts on the below? Specifically the PANIC? A customer
was performing a full vacuum when it happen. This is running 7.4.7
on ES 3.0. We run daily vacuums and analyzes as well.

2005-06-27 16:35:02 LOG:  recycled transaction log file "0000004D0000006F"
2005-06-27 16:35:02 LOG:  recycled transaction log file "0000004D00000070"
2005-06-27 16:35:02 LOG:  recycled transaction log file "0000004D00000071"
2005-06-27 16:35:02 LOG:  recycled transaction log file "0000004D00000072"
2005-06-27 16:35:02 LOG:  recycled transaction log file "0000004D00000073"
2005-06-27 16:35:02 LOG:  recycled transaction log file "0000004D00000074"
2005-06-27 16:35:02 LOG:  recycled transaction log file "0000004D00000075"
2005-06-27 16:35:02 LOG:  recycled transaction log file "0000004D00000076"
2005-06-27 16:36:23 LOG:  incomplete startup packet
2005-06-27 16:37:53 ERROR:  could not send data to client: Broken pipe
2005-06-27 16:37:53 PANIC:  cannot abort transaction 146017848, it was 
already committed
2005-06-27 16:37:53 LOG:  server process (PID 6931) was terminated by 
signal 6
2005-06-27 16:37:53 LOG:  terminating any other active server processes
2005-06-27 16:37:53 WARNING:  terminating connection because of crash of 
another server process
DETAIL:  The postmaster has commanded this server process to roll back 
the current transaction and exit, because another server process exited 
abnormally and possibly corrupted shared memory.
HINT:  In a moment you should be able to reconnect to the database and 
repeat your command.
2005-06-27 16:37:53 WARNING:  terminating connection because of crash of 
another server process
DETAIL:  The postmaster has commanded this server process to roll back 
the current transaction and exit, because another server process exited 
abnormally and possibly corrupted shared memory.
HINT:  In a moment you should be able to reconnect to the database and 
repeat your command.

Sincerely,

Joshua D. Drake



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