Description:
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After 2-3 hours of uptime, i start getting these log messages:

PHP Warning:  Unknown(): POST Content-Length of 52 bytes exceeds the limit of 0 bytes in Unknown on line 0, referer: https://....


Fedora core 2
Apache 2 (2.0.51)
PHP 4.3.9 (and 4.3.8) (from RPM's - tried the 4.3.9 RPM and got the exact same result as in 4.3.8)
using mod_ssl

Reproduce code:
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Any POST operation