zero size buf in output

[Михаил Монашёв <postmaster@xxxxxxxxxxxxx>]

Здравствуйте.

В логах выпадает вот такое:
2013/01/22 22:29:32 [alert] 68016#0: *4447793 zero size buf in output t:0 r:0 
f:0 00000008EF833000 00000008EF833000-00000008EF849399 0000000000000000 0-0 
while sending to client, client: 89.222.164.41, server: i99.beon.ru, request: 
"GET /data.whicdn.com/images/47763159/tumblr_m37casVk2D1ro4xjio1_500_large.gif 
HTTP/1.1", upstream: 
"http://93.184.220.125:80/images/47763159/tumblr_m37casVk2D1ro4xjio1_500_large.gif";,
 host: "i99.beon.ru", referrer: 
"http://inthefootsteps.beon.ru/tag/Benedict%20Cumberbatch/2.html";
2013/01/22 22:30:53 [alert] 68018#0: *4493362 zero size buf in output t:0 r:0 
f:0 00000008F01D2000 00000008F01D2000-00000008F01D2A55 0000000000000000 0-0 
while sending to client, client: 88.135.86.195, server: i99.beon.ru, request: 
"GET /s019.radikal.ru/i604/1209/c0/1655940b7494.gif HTTP/1.1", upstream: 
"http://81.176.238.31:80/i604/1209/c0/1655940b7494.gif";, host: "i99.ltalk.ru", 
referrer: "http://sculptor.ltalk.ru/8.html";
2013/01/22 22:31:40 [alert] 68029#0: *4530373 zero size buf in output t:0 r:0 
f:0 00000008EF844000 00000008EF844000-00000008EF85EBBC 0000000000000000 0-0 
while sending to client, client: 95.78.244.123, server: i99.beon.ru, request: 
"GET /static.comicsia.ru/i/8b/48-35656.jpeg HTTP/1.1", upstream: 
"http://176.9.35.242:80/i/8b/48-35656.jpeg";, host: "i99.beon.ru", referrer: 
"http://angel04.beon.ru/";
2013/01/22 22:32:36 [alert] 68030#0: *4566100 zero size buf in output t:0 r:0 
f:0 00000008EF7CE000 00000008EF7CE000-00000008EF7CF000 0000000000000000 0-0 
while sending to client, client: 89.222.164.41, server: i99.beon.ru, request: 
"GET /25.media.tumblr.com/tumblr_m3b4paYiRx1qzioz2o2_250.png HTTP/1.1", 
upstream: "http://193.159.160.56:80/tumblr_m3b4paYiRx1qzioz2o2_250.png";, host: 
"i99.beon.ru", referrer: 
"http://inthefootsteps.beon.ru/tag/Benedict%20Cumberbatch/4.html";
2013/01/22 22:33:07 [alert] 68013#0: *4558338 zero size buf in output t:0 r:0 
f:0 00000008EF8CB000 00000008EF8CB000-00000008EF8E4F86 0000000000000000 0-0 
while sending to client, client: 176.8.113.114, server: i99.beon.ru, request: 
"GET /imgdepo.ru/id/i1776313 HTTP/1.1", upstream: 
"http://46.4.122.242:80/id/i1776313";, host: "i99.beon.ru", referrer: 
"http://kartinkoforyou.beon.ru/2.html";

Судя по рассылке, это бага какая-то.

 nginx -V
nginx version: nginx/1.3.11
configure arguments: --prefix=/usr/local/etc/nginx --with-cc-opt='-I 
/usr/local/include' --with-ld-opt='-L /usr/local/lib' 
--conf-path=/usr/local/etc/nginx/nginx.conf --sbin-path=/usr/local/sbin/nginx 
--pid-path=/var/run/nginx.pid --error-log-path=/var/log/nginx-error.log 
--user=www --group=www --with-debug --with-file-aio 
--http-client-body-temp-path=/var/tmp/nginx/client_body_temp 
--http-fastcgi-temp-path=/var/tmp/nginx/fastcgi_temp 
--http-proxy-temp-path=/var/tmp/nginx/proxy_temp 
--http-scgi-temp-path=/var/tmp/nginx/scgi_temp 
--http-uwsgi-temp-path=/var/tmp/nginx/uwsgi_temp 
--http-log-path=/var/log/nginx-access.log --with-http_image_filter_module 
--with-http_stub_status_module --with-pcre

с наложенным патчем Максима про proxy_metod.

debug-log попробовал писать для всех ip, но не вышло - не хватает
процессора. Выглядело в топе всё вот так:
76562 www         1  76    0  3828M 37752K RUN     0   0:08 22.27% nginx
76590 www         1  76    0  3830M 39500K RUN     3   0:07 22.27% nginx
76589 www         1  76    0  3828M 37568K CPU3    7   0:08 22.17% nginx
76578 www         1  76    0  3828M 37412K RUN     6   0:07 22.17% nginx
76576 www         1  76    0  3828M 37536K RUN     0   0:08 22.07% nginx
76565 www         1  76    0  3828M 38012K ksem    3   0:08 22.07% nginx
76571 www         1  76    0  3830M 38916K RUN     2   0:08 22.07% nginx
76579 www         1  76    0  3828M 37876K RUN     1   0:05 22.07% nginx
76563 www         1  76    0  3828M 37584K RUN     6   0:08 21.97% nginx
76564 www         1  76    0  3830M 38540K CPU2    7   0:08 21.97% nginx
76566 www         1  76    0  3828M 37952K RUN     2   0:08 21.97% nginx
76567 www         1 100    0  3828M 37580K CPU2    2   0:08 21.97% nginx
76586 www         1  76    0  3828M 37060K RUN     0   0:05 21.97% nginx
76577 www         1  76    0  3830M 39312K CPU1    4   0:09 21.88% nginx
76588 www         1  76    0  3830M 38536K CPU7    3   0:08 21.88% nginx
76574 www         1  76    0  3830M 39468K RUN     4   0:08 21.88% nginx
76582 www         1  76    0  3828M 37708K RUN     6   0:08 21.88% nginx


-- 
С уважением,
 Михаил                          mailto:postmaster@xxxxxxxxxxxxx

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