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lstat64 在现有目录上失败

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lstat64 在现有目录上失败

经过一段时间的尝试调试失败后move_uploaded_file打电话，我试过了

strace -s 8192 -o strace.log -f /etc/init.d/apache22 restart

在更多的输出中，这产生了以下几行：

5069  lstat64("/var", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
5069  lstat64("/var/apache22", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
5069  lstat64("/var/apache22/var", 0xbffe0f8c) = -1 ENOENT (No such file or directory)

（是的，我知道路径有点奇怪。它是一个遗留应用程序。）

问题是“/var/apache22/var”确实存在。从根会话逐字粘贴（[括号内的文本] 除外）：

# ls -la "/var/apache22/var"      
total 24
drwxr-xr-x  6 root root 4096 Mar  7  2011 .
drwxr-xr-x  9 root root 4096 Jan 11 19:18 ..
drwxr-xr-x 10 root root 4096 Mar  7  2011 apache22
drwxr-xr-x  3 root root 4096 Mar  7  2011 log
drwxr-xr-x  2 root root 4096 Jan 11 19:36 run
drwxr-xr-x  3 root root 4096 Mar  7  2011 usr

# stat "/var/apache22/var"
  File: `/var/apache22/var'
  Size: 4096        Blocks: 8          IO Block: 4096   directory
Device: 804h/2052d  Inode: 539214      Links: 6
Access: (0755/drwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2012-01-11 19:46:47.000000000 +0100
Modify: 2011-03-07 23:27:57.000000000 +0100
Change: 2011-06-06 19:39:40.000000000 +0200

# mount
/dev/sda1 on / type ext3 (rw)
/dev/sda3 on /usr type ext3 (rw)
/dev/sda4 on /var type ext3 (rw)
sysfs on /sys type sysfs (rw)
/var/[product name] on /var/apache22/var/apache22/export/[product name] type none (rw,bind)

没有符号链接：

# file / /var /var/apache22 /var/apache22/var
/:                 directory
/var:              directory
/var/apache22:     directory
/var/apache22/var: directory

# uname -r
2.6.29.6

答案1

检查 Apache 是否正在运行chroot()。我能想到的是你在哪里看到的情况/var/apache22/var，但实际上并不意味着/var/apache22/var。

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