“[注意] 子 pid XXXX 退出信号分段错误 (11)” 在 apache 错误.log [已关闭]

2022-08-30 07:25:13

我正在使用Apache / PHP / MySQL堆栈。
用作CakePHP的框架。

时不时地,我会得到一张空白的白页。我无法通过Cake调试它,所以我偷看了apache错误.log这是我得到的:

[Wed Oct 12 15:27:23 2011] [notice] child pid 3580 exit signal Segmentation fault (11)
[Wed Oct 12 15:27:34 2011] [notice] child pid 3581 exit signal Segmentation fault (11)
[Wed Oct 12 15:30:52 2011] [notice] child pid 3549 exit signal Segmentation fault (11)
[Wed Oct 12 16:04:27 2011] [notice] child pid 3579 exit signal Segmentation fault (11)
zend_mm_heap corrupted
[Wed Oct 12 16:26:24 2011] [notice] child pid 3625 exit signal Segmentation fault (11)
[Wed Oct 12 17:57:24 2011] [notice] child pid 3577 exit signal Segmentation fault (11)
[Wed Oct 12 17:58:54 2011] [notice] child pid 3550 exit signal Segmentation fault (11)
[Wed Oct 12 17:59:52 2011] [notice] child pid 3578 exit signal Segmentation fault (11)
[Wed Oct 12 18:01:38 2011] [notice] child pid 3683 exit signal Segmentation fault (11)
[Wed Oct 12 22:20:53 2011] [notice] child pid 3778 exit signal Segmentation fault (11)
[Wed Oct 12 22:29:51 2011] [notice] child pid 3777 exit signal Segmentation fault (11)
[Wed Oct 12 22:33:42 2011] [notice] child pid 3774 exit signal Segmentation fault (11)

这是什么分段错误,我该如何解决它?

更新:

PHP Version 5.3.4, OSX local development
Server version: Apache/2.2.17 (Unix)
CakePhp: 1.3.10

答案 1

将 gdb 附加到其中一个 httpd 子进程,然后重新加载或继续工作并等待崩溃,然后查看回溯。执行如下操作:

$ ps -ef|grep httpd
0     681     1   0 10:38pm ??         0:00.45 /Applications/MAMP/Library/bin/httpd -k start
501   690   681   0 10:38pm ??         0:00.02 /Applications/MAMP/Library/bin/httpd -k start

...

现在将 gdb 附加到其中一个子进程,在本例中为 PID 690(列是 UID、PID、PPID 等)

$ sudo gdb
(gdb) attach 690
Attaching to process 690.
Reading symbols for shared libraries . done
Reading symbols for shared libraries ....................... done
0x9568ce29 in accept$NOCANCEL$UNIX2003 ()
(gdb) c
Continuing.

等待崩溃...然后:

(gdb) backtrace

(gdb) backtrace full

应该给你一些线索,这是怎么回事。如果您提交错误报告,则应包含回溯跟踪。

如果崩溃难以重现,最好将 Apache 配置为仅使用一个子进程来处理请求。配置如下所示:

StartServers 1
MinSpareServers 1
MaxSpareServers 1

答案 2

隔离错误是php(或者不太可能是apache)中的内部错误。通常,分割错误是由一个更新的,测试较少的php模块引起的,例如imagemagick或subversion。

尝试禁用所有非必要模块(in ),然后逐个重新启用它们,直到出现错误。您可能还想更新php和apache。php.ini

如果这没有帮助,你应该报告一个php错误


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