Attempting to write a plugin

[nginx.devlist.alias at fremnet.net]

Hi

I'm attempting to write my first plugin, it's going swimmingly except 
it's not.

I'm trying to add to the SSI module the same way the perl module does 
and have spent a lot of time flicking between the two (c isn't one of my 
strong languages).

It appears to work, the very last log line does get called, then it 
segfaults

2012/03/16 20:14:55 [emerg] 10663#0: *1 working with the bufferzzzzzz 
while sending response to client, client: 118.xx.xx.66, server: 
flatus.xx.net, request: "GET /index.html HTTP/1.1", host: 
"flatus.xx.net:8081"

2012/03/16 20:14:55 [emerg] 10663#0: *1 working with the buffer failing 
btw YqEgHCzpROFbVQPah9mA_w==,1331892955 while sending response to 
client, client: 118.xx.xx.66, server: flatus.xx.net, request: "GET 
/index.html HTTP/1.1", host: "flatus.xx.net:8081"

I've attached the plugin, such as it is...

You get the log message from line 130
ngx_log_error(NGX_LOG_EMERG, c->log, 0, "working with the buffer failing 
btw %V", &foo);

but then it promptly crashes....

Any ideas? I thought it was going along so well :(

Thanks

Shannon.
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