nginx large POST body under Solaris

[Wil Tan]

Hello Nginx-ers,

I had a problem with uploading large files to a FastCGI (Django)  
process behind nginx. Nginx crashes when running under Solaris 10  
(SunOS 5.11 snv_67 i86pc i386 i86pc) and nginx 0.5.35 compiled  
without any special modules. I also tried nginx 0.6.29 with the same  
problem.

The problem is that when I upload a small file, it works fine. But  
when uploading a large file (> 1Mb) I got 413 request too large and  
so I upped the client_max_body_size parameter in the config. When I  
upload, I get a blank page back, with a message like this:

2008/03/25 08:03:15 [warn] 3176#0: *5 a client request body is  
buffered to a temporary file /tmp/nginx/0/00/0000000000, client:  
75.75.25.21, server: mojipage.com, request: "POST /account/avatar/? 
t=1206428905 HTTP/1.1", host: "mojipage.com", referrer: "http:// 
mojipage.com/account/avatar/?t=1206428905"
2008/03/25 08:03:24 [notice] 3175#0: signal 18 (SIGCHLD) received
2008/03/25 08:03:24 [alert] 3175#0: worker process 3176 exited on  
signal 11
2008/03/25 08:03:24 [notice] 3175#0: start worker process 3184


Here's a debug log that I correspond to one of these attempts:

2008/03/25 07:29:21 [debug] 28590#0: *5 connect to unix:/home/moji/ 
web/floweb/floweb-fcgi.sock, fd:9 #6
2008/03/25 07:29:21 [debug] 28590#0: *5 devpoll add event: fd:9 ev:0001
2008/03/25 07:29:21 [debug] 28590#0: *5 devpoll fd:9 ev:0001 fl:0000
2008/03/25 07:29:21 [debug] 28590#0: *5 connected
2008/03/25 07:29:21 [debug] 28590#0: *5 http upstream connect: 0
2008/03/25 07:29:21 [debug] 28590#0: *5 http upstream send request
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:992
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:354
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:14
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 malloc: 080F0E00:4096
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:27809
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:15
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:32768
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:8
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:27809
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer buf fl:0 s:15
2008/03/25 07:29:21 [debug] 28590#0: *5 chain writer in: 080F0D4C
2008/03/25 07:29:21 [debug] 28590#0: *5 writev: 1408
2008/03/25 07:29:21 [notice] 28575#0: signal 18 (SIGCHLD) received
2008/03/25 07:29:21 [alert] 28575#0: worker process 28590 exited on  
signal 11



Any pointers would be appreciated.

Thanks and best regards,

=wil

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