Configuration parsing error: mmap_log_buffer_size

[symstu-tempesta]

Describe the issue
I cannot set the configuration value for mmap_log_buffer_size.

Expected Behavior
Tempesta FW starts correctly but currently crashes when the mmap_log_buffer_size configuration parameter is set.

To Reproduce
Add the following line to your Tempesta configuration and start the application:

mmap_log_buffer_size 4096;

Configuration file

            listen 80;
            server localhost:8000;

            access_log dmesg mmap mmap_host=localhost mmap_log=/tmp/access.log;
            mmap_log_buffer_size 4096;

Version or commit hash
80598c9

Stacktrace or debug log

[23215.774224] Start test: t_clickhouse.test_clickhouse_logs.TestClickhouseLogsBaseTest2.test_missing_log
[23215.933958] [tdb] Start Tempesta DB
[23215.952773] [tempesta fw] Initializing Tempesta FW kernel module...
[23216.038606] [tempesta fw] ERROR: the first character is not a letter: '4'
[23216.038609] [tempesta fw] ERROR: syntax error
[23216.038611] [tempesta fw] ERROR: configuration parsing error:
                  5:             4096;
                     ^^^^^^^^^^^^^^^^^
[23216.038613] [tempesta fw] Warning: Configuration parsing has failed. Clean up...
[23216.086674] [tempesta fw] exiting...
[23216.180309] [tdb] Shutdown Tempesta DB