Mercurial > hg > nginx
annotate auto/have @ 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> |
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date | Tue, 30 Oct 2012 11:14:24 +0000 |
parents | d620f497c50f |
children |
rev | line source |
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444
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
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1 |
42d11f017717
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Igor Sysoev <igor@sysoev.ru>
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2 # Copyright (C) Igor Sysoev |
4412 | 3 # Copyright (C) Nginx, Inc. |
444
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Igor Sysoev <igor@sysoev.ru>
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4 |
248
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Igor Sysoev <igor@sysoev.ru>
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5 |
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Igor Sysoev <igor@sysoev.ru>
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6 cat << END >> $NGX_AUTO_CONFIG_H |
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Igor Sysoev <igor@sysoev.ru>
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7 |
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Igor Sysoev <igor@sysoev.ru>
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8 #ifndef $have |
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Igor Sysoev <igor@sysoev.ru>
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9 #define $have 1 |
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Igor Sysoev <igor@sysoev.ru>
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10 #endif |
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Igor Sysoev <igor@sysoev.ru>
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11 |
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12 END |