mysqldump error 5 Out of memory

[Tyler Poland]

When I try to dump one of our tables as a part of our automated backup script I get the error message "Error 5: Out of memory (Needed 60536232 bytes) when dumping table `<tablename>` at row: 53147".

The specifics of the implementation are below:

Windows 2003 Enterprise Edition
24 GB physical memory
MySQL 4.1.9-nt compiled for AWE support
Dual XEON 2.8 GHz

my.ini [mysqldump] section
quick
max_allowed_packet=64M

Table details
Data_length: 7826571264
Index_length: 188448768
Type: INNODB

Record details
Row before failure row in error contains a longtext of 383Kb
Row identified as failure row contains a longtext of 166Kb
Row after failure row in error contains a longtext of 19705Kb


Dump Command
mysqldump --u={uname} -p{password} --port={portnumber} --opt --skip-lock-tables --single-transaction {database} > D:\{path to sql file}

I have tried several variations of max_allowed_packet, net_buffer_length, as well as skip_extended_insert, skip_quick, -f. I have also run the command directly on the specify table that is failing, it fails in the same place.

Any assistance would be greatly appreciated.

Thank you,