I compiled nginx with debug support, here is log
Server: nginx/0.7.60
Date: Tue, 16 Jun 2009 15:46:31 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
Content-Encoding: gzip
2009/06/16 17:46:31 [debug] 29541#0: *1 write new buf t:1 f:0 000000000068FF10, pos 000000000068FF10, size: 186 file: 0, size: 0
2009/06/16 17:46:31 [debug] 29541#0: *1 http write filter: l:0 f:0 s:186
2009/06/16 17:46:31 [debug] 29541#0: *1 http output filter "/moje.html?otheruser=silia&showpage=2"
2009/06/16 17:46:31 [debug] 29541#0: *1 copy filter: "/moje.html?otheruser=silia&showpage=2"
2009/06/16 17:46:31 [debug] 29541#0: *1 http postpone filter "/moje.html?otheruser=silia&showpage=2" 0000000000699F28
2009/06/16 17:46:31 [debug] 29541#0: *1 http gzip filter
2009/06/16 17:46:31 [debug] 29541#0: *1 malloc: 0000000000690F00:12288
2009/06/16 17:46:31 [debug] 29541#0: *1 gzip alloc: n:1 s:5928 a:8192 p:0000000000690F00
2009/06/16 17:46:31 [debug] 29541#0: *1 gzip alloc: n:512 s:2 a:1024 p:0000000000692F00
2009/06/16 17:46:31 [debug] 29541#0: *1 gzip alloc: n:512 s:2 a:1024 p:0000000000693300
2009/06/16 17:46:31 [debug] 29541#0: *1 gzip alloc: n:512 s:2 a:1024 p:0000000000693700
2009/06/16 17:46:31 [debug] 29541#0: *1 gzip alloc: n:256 s:4 a:1024 p:0000000000693B00
2009/06/16 17:46:31 [debug] 29541#0: *1 gzip in: 0000000000699F58
2009/06/16 17:46:31 [debug] 29541#0: *1 gzip in_buf:000000000068FFD0 ni:00000000006740C0 ai:116
2009/06/16 17:46:31 [debug] 29541#0: *1 malloc: 00000000006CECF0:4096
2009/06/16 17:46:31 [debug] 29541#0: *1 deflate in: ni:00000000006740C0 no:00000000006CECF0 ai:116 ao:4096 fl:0 redo:0
2009/06/16 17:46:31 [debug] 29541#0: *1 deflate out: ni:0000000000674134 no:00000000006CECF0 ai:0 ao:4096 rc:0
2009/06/16 17:46:31 [debug] 29541#0: *1 gzip in_buf:000000000068FFD0 pos:00000000006740C0
2009/06/16 17:46:31 [debug] 29541#0: *1 gzip in: 00000000006900E0
2009/06/16 17:46:31 [debug] 29541#0: *1 gzip in_buf:0000000000690020 ni:0000000000673B60 ai:53
2009/06/16 17:46:31 [debug] 29541#0: *1 deflate in: ni:0000000000673B60 no:00000000006CECF0 ai:53 ao:4096 fl:4 redo:0
2009/06/16 17:46:31 [debug] 29541#0: *1 deflate out: ni:0000000000673B95 no:00000000006CED61 ai:0 ao:3983 rc:1
2009/06/16 17:46:31 [debug] 29541#0: *1 gzip in_buf:0000000000690020 pos:0000000000673B60
2009/06/16 17:46:31 [debug] 29541#0: *1 free: 0000000000690F00
2009/06/16 17:46:31 [debug] 29541#0: *1 http chunk: 10
2009/06/16 17:46:31 [debug] 29541#0: *1 http chunk: 121
2009/06/16 17:46:31 [debug] 29541#0: *1 write old buf t:1 f:0 000000000068FF10, pos 000000000068FF10, size: 186 file: 0, size: 0
2009/06/16 17:46:31 [debug] 29541#0: *1 write new buf t:1 f:0 0000000000000000, pos 0000000000690230, size: 4 file: 0, size: 0
2009/06/16 17:46:31 [debug] 29541#0: *1 write new buf t:0 f:0 0000000000000000, pos 00000000006778E8, size: 10 file: 0, size: 0
2009/06/16 17:46:31 [debug] 29541#0: *1 write new buf t:1 f:0 00000000006CECF0, pos 00000000006CECF0, size: 121 file: 0, size: 0
2009/06/16 17:46:31 [debug] 29541#0: *1 write new buf t:0 f:0 0000000000000000, pos 0000000000463798, size: 7 file: 0, size: 0
2009/06/16 17:46:31 [debug] 29541#0: *1 http write filter: l:1 f:1 s:328
2009/06/16 17:46:31 [debug] 29541#0: *1 http write filter limit 0
2009/06/16 17:46:31 [debug] 29541#0: *1 writev: 328
2009/06/16 17:46:31 [debug] 29541#0: *1 http write filter 0000000000000000
2009/06/16 17:46:31 [debug] 29541#0: *1 copy filter: 0 "/moje.html?otheruser=silia&showpage=2"
2009/06/16 17:46:31 [debug] 29541#0: *1 http finalize request: 0, "/moje.html?otheruser=silia&showpage=2" 1
2009/06/16 17:46:31 [debug] 29541#0: *1 set http keepalive handler
2009/06/16 17:46:31 [debug] 29541#0: *1 http close request
2009/06/16 17:46:31 [debug] 29541#0: *1 http log handler
2009/06/16 17:46:31 [debug] 29541#0: *1 free: 00000000006CECF0
2009/06/16 17:46:31 [debug] 29541#0: *1 free: 0000000000000000
2009/06/16 17:46:31 [debug] 29541#0: *1 free: 0000000000698F70, unused: 8
2009/06/16 17:46:31 [debug] 29541#0: *1 free: 000000000068FEF0, unused: 2890
2009/06/16 17:46:31 [debug] 29541#0: *1 event timer add: 20: 65000:1245167256695
2009/06/16 17:46:31 [debug] 29541#0: *1 free: 00000000006A2180
2009/06/16 17:46:31 [debug] 29541#0: *1 free: 00000000006A1D70
2009/06/16 17:46:31 [debug] 29541#0: *1 hc free: 0000000000000000 0
2009/06/16 17:46:31 [debug] 29541#0: *1 hc busy: 0000000000000000 0
2009/06/16 17:46:31 [debug] 29541#0: *1 post event 00002AB734F94148
2009/06/16 17:46:31 [debug] 29541#0: *1 delete posted event 00002AB734F94148
2009/06/16 17:46:31 [debug] 29541#0: *1 http keepalive handler
2009/06/16 17:46:31 [debug] 29541#0: *1 malloc: 00000000006A1D70:1024
2009/06/16 17:46:31 [debug] 29541#0: *1 recv: fd:20 -1 of 1024
2009/06/16 17:46:31 [debug] 29541#0: *1 recv() not ready (11: Resource temporarily unavailable)
2009/06/16 17:46:32 [debug] 29541#0: *1 post event 00002AB734F94148
2009/06/16 17:46:32 [debug] 29541#0: *1 delete posted event 00002AB734F94148
2009/06/16 17:46:32 [debug] 29541#0: *1 http keepalive handler
2009/06/16 17:46:32 [debug] 29541#0: *1 recv: fd:20 638 of 1024
2009/06/16 17:46:32 [debug] 29541#0: *1 malloc: 00000000006A2180:1248
2009/06/16 17:46:32 [debug] 29541#0: *1 malloc: 0000000000698F70:4096
2009/06/16 17:46:32 [debug] 29541#0: *1 http process request line
2009/06/16 17:46:32 [debug] 29541#0: *1 http request line: "GET /user/silia/content/2.html HTTP/1.1"
2009/06/16 17:46:32 [debug] 29541#0: *1 http uri: "/user/silia/content/2.html"
2009/06/16 17:46:32 [debug] 29541#0: *1 http args: ""
2009/06/16 17:46:32 [debug] 29541#0: *1 http exten: "html"
2009/06/16 17:46:32 [debug] 29541#0: *1 http process request header line
2009/06/16 17:46:32 [debug] 29541#0: *1 http header: "Host: swir.us:83"
2009/06/16 17:46:32 [debug] 29541#0: *1 http header: "User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.10) Gecko/2009042315 Firefox/3.0.10"
2009/06/16 17:46:32 [debug] 29541#0: *1 http header: "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"
2009/06/16 17:46:32 [debug] 29541#0: *1 http header: "Accept-Language: en-us,en;q=0.5"
2009/06/16 17:46:32 [debug] 29541#0: *1 http header: "Accept-Encoding: gzip,deflate"
2009/06/16 17:46:32 [debug] 29541#0: *1 http header: "Accept-Charset: ISO-8859-2,utf-8;q=0.7,*;q=0.7"
2009/06/16 17:46:32 [debug] 29541#0: *1 http header: "Keep-Alive: 300"
2009/06/16 17:46:32 [debug] 29541#0: *1 http header: "Connection: keep-alive"
2009/06/16 17:46:32 [debug] 29541#0: *1 http header: "Cookie: __utma=56877352.3795460516796146000.1237308151.1245077681.1245085203.16; __utmz=56877352.1242057004.6.2.utmcsr=gry.swir.us|utmccn=(referral)|utmcmd=referral|utmcct=/; __gads=ID=c42082e22896b935:T=1242056621:S=ALNI_MaoNXmB0LRDjKcwEKM9n7yQ4_EQbg"
2009/06/16 17:46:32 [debug] 29541#0: *1 http header done
2009/06/16 17:46:32 [debug] 29541#0: *1 event timer del: 20: 1245167256695
2009/06/16 17:46:32 [debug] 29541#0: *1 generic phase: 0
2009/06/16 17:46:32 [debug] 29541#0: *1 test location: "/"
2009/06/16 17:46:32 [debug] 29541#0: *1 test location: "user/"
2009/06/16 17:46:32 [debug] 29541#0: *1 using configuration "/user/"
2009/06/16 17:46:32 [debug] 29541#0: *1 http cl:-1 max:1048576
2009/06/16 17:46:32 [debug] 29541#0: *1 generic phase: 2
2009/06/16 17:46:32 [debug] 29541#0: *1 http script regex: "^/user/(.*)/moje.([0-9]+).html$"
2009/06/16 17:46:32 [notice] 29541#0: *1 "^/user/(.*)/moje.([0-9]+).html$" does not match "/user/silia/content/2.html", client: 83.5.37.96, server: swir.us, request: "GET /user/silia/content/2.html HTTP/1.1", host: "swir.us:83"
2009/06/16 17:46:32 [debug] 29541#0: *1 http script regex: "^/user/(.*)/(content|lista)/([0-9]+).html$"
2009/06/16 17:46:32 [notice] 29541#0: *1 "^/user/(.*)/(content|lista)/([0-9]+).html$" matches "/user/silia/content/2.html", client: 83.5.37.96, server: swir.us, request: "GET /user/silia/content/2.html HTTP/1.1", host: "swir.us:83"
2009/06/16 17:46:32 [debug] 29541#0: *1 http script copy: "/moje.html"
2009/06/16 17:46:32 [debug] 29541#0: *1 http script args
2009/06/16 17:46:32 [debug] 29541#0: *1 http script copy: "otheruser="
2009/06/16 17:46:32 [debug] 29541#0: *1 http script capture: "silia"
2009/06/16 17:46:32 [debug] 29541#0: *1 http script copy: "&showpage="
2009/06/16 17:46:32 [debug] 29541#0: *1 http script capture: "2"
2009/06/16 17:46:32 [debug] 29541#0: *1 http script regex end
2009/06/16 17:46:32 [notice] 29541#0: *1 rewritten data: "/moje.html", args: "otheruser=silia&showpage=2", client: 83.5.37.96, server: swir.us, request: "GET /user/silia/content/2.html HTTP/1.1", host: "swir.us:83"
2009/06/16 17:46:32 [debug] 29541#0: *1 post rewrite phase: 3
2009/06/16 17:46:32 [debug] 29541#0: *1 uri changes: 11
2009/06/16 17:46:32 [debug] 29541#0: *1 test location: "/"
2009/06/16 17:46:32 [debug] 29541#0: *1 test location: "user/"
2009/06/16 17:46:32 [debug] 29541#0: *1 test location: "50x.html"
2009/06/16 17:46:32 [debug] 29541#0: *1 test location: ~ "\.html$"
2009/06/16 17:46:32 [debug] 29541#0: *1 using configuration "\.html$"
2009/06/16 17:46:32 [debug] 29541#0: *1 http cl:-1 max:1048576
2009/06/16 17:46:32 [debug] 29541#0: *1 generic phase: 2
2009/06/16 17:46:32 [debug] 29541#0: *1 http script complex value
2009/06/16 17:46:32 [debug] 29541#0: *1 http script var: "GET /user/silia/content/2.html HTTP/1.1"
2009/06/16 17:46:32 [debug] 29541#0: *1 http script copy: "-filename"
2009/06/16 17:46:32 [debug] 29541#0: *1 http script file op 0000000000000001 "GET /user/silia/content/2.html HTTP/1.1-filename"
2009/06/16 17:46:32 [debug] 29541#0: *1 http script if
2009/06/16 17:46:32 [debug] 29541#0: *1 http finalize request: 404, "/moje.html?otheruser=silia&showpage=2" 1
2009/06/16 17:46:32 [debug] 29541#0: *1 http special response: 404, "/moje.html?otheruser=silia&showpage=2"
2009/06/16 17:46:32 [debug] 29541#0: *1 http set discard body
2009/06/16 17:46:32 [debug] 29541#0: *1 malloc: 000000000068FEF0:4096
2009/06/16 17:46:32 [debug] 29541#0: *1 HTTP/1.1 404 Not Found
and server block from nginx.conf here:
listen 83;
server_name swir.us www.swir.us;
#access_log logs/host.access.log main;
error_log logs/debug.log debug;
gzip on;
gzip_comp_level 9;
gzip_types text/css application/x-javascript;
