Mercurial > hg > nginx
annotate auto/nohave @ 4895:508e61393b6c
Event pipe: fixed handling of buf_to_file data.
Input filter might free a buffer if there is no data in it, and in case
of first buffer (used for cache header and request header, aka p->buf_to_file)
this resulted in cache corruption. Buffer memory was reused to read upstream
response before headers were written to disk.
Fix is to avoid moving pointers in ngx_event_pipe_add_free_buf() to a buffer
start if we were asked to free a buffer used by p->buf_to_file.
This fixes occasional cache file corruption, usually resulted
in "cache file ... has md5 collision" alerts.
Reported by Anatoli Marinov.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Tue, 30 Oct 2012 11:14:24 +0000 |
parents | d620f497c50f |
children |
rev | line source |
---|---|
444
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
298
diff
changeset
|
1 |
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
298
diff
changeset
|
2 # Copyright (C) Igor Sysoev |
4412 | 3 # Copyright (C) Nginx, Inc. |
444
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
298
diff
changeset
|
4 |
298
4a3f18406832
nginx-0.0.3-2004-03-30-10:27:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
5 |
4a3f18406832
nginx-0.0.3-2004-03-30-10:27:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
6 cat << END >> $NGX_AUTO_CONFIG_H |
4a3f18406832
nginx-0.0.3-2004-03-30-10:27:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
7 |
4a3f18406832
nginx-0.0.3-2004-03-30-10:27:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
8 #ifndef $have |
4a3f18406832
nginx-0.0.3-2004-03-30-10:27:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
9 #define $have 0 |
4a3f18406832
nginx-0.0.3-2004-03-30-10:27:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
10 #endif |
4a3f18406832
nginx-0.0.3-2004-03-30-10:27:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
11 |
4a3f18406832
nginx-0.0.3-2004-03-30-10:27:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
12 END |