dhchen’s blog

apache2、php4與GNU Recode這三個一起用會有問題 :Q

前一陣子就遇到這個問題了，newsyslog每次在rotate log的時候apache都會無緣無故收到SIGABRT死掉，本來也沒有詳細再看，這陣子無聊想說來看看好了（一方面是因為有了blog所以這個問題蠻頭大的）。本來用google找只有找到舊版本的php4和pcre有問題，不過看了看說這個bug修正了啊…結果一直追一追gdb全部都給我來個??看不到是那個function出問題，火大了全部加上-g重新編一遍才看到收到SIGABRT時候的backtrace…

(gdb) where
#0 0×283e019f in kill () from /lib/libc.so.6
#1 0×283d3ca6 in raise () from /lib/libc.so.6
#2 0×284540d2 in abort () from /lib/libc.so.6
#3 0×283ef55c in _UTF8_wcsnrtombs () from /lib/libc.so.6
#4 0×283ef5a8 in _UTF8_wcsnrtombs () from /lib/libc.so.6
#5 0×283f026b in _UTF8_wcsnrtombs () from /lib/libc.so.6
#6 0×283f0842 in _UTF8_wcsnrtombs () from /lib/libc.so.6
#7 0×283f09bf in free () from /lib/libc.so.6
#8 0×288bc851 in my_no_flags_free () from /usr/local/lib/mysql/libmysqlclient.so.14
#9 0×288c27a9 in delete_dynamic () from /usr/local/lib/mysql/libmysqlclient.so.14
#10 0×288c40cc in hash_free () from /usr/local/lib/mysql/libmysqlclient.so.14
#11 0×28b55711 in recode_delete_outer () from /usr/local/lib/librecode.so.3
#12 0×28a26ed7 in zm_shutdown_recode (type=1, module_number=14)
at /usr/ports/converters/php4-recode/work/php-4.3.10/ext/recode/recode.c:113
#13 0×285b01bd in ?? () from /usr/local/libexec/apache2/libphp4.so
#14 0×285b24ff in ?? () from /usr/local/libexec/apache2/libphp4.so
#15 0×285b267c in ?? () from /usr/local/libexec/apache2/libphp4.so
#16 0×285ac514 in ?? () from /usr/local/libexec/apache2/libphp4.so
#17 0×2857b78a in ?? () from /usr/local/libexec/apache2/libphp4.so
#18 0×2857b747 in ?? () from /usr/local/libexec/apache2/libphp4.so
#19 0×285ca1c1 in ?? () from /usr/local/libexec/apache2/libphp4.so
#20 0×28356edd in run_cleanups (cref=0×80a1028) at apr_pools.c:1951
#21 0×283560fc in apr_pool_clear (pool=0×80a1018) at apr_pools.c:693
#22 0×0806b81d in main (argc=3, argv=0xbfbfecd8) at main.c:594

librecode？這是什麼東西…結果發現拿掉這個php extension就好了，apache可以順利graceful restart沒有問題，就順便送了個pr出去了…

不過我也沒用到這東西，為啥把這個編進來呢…