关于 bug74/77 “未知错误”的一些详情

nihui

0000074: 普通用户无法启动 smart
0000077: 部分需要root权限的程序由普通用户执行时提示“未知错误”

相关的包：  smart usermode pam

普通用户终端执行 smart-gui 的调试信息输出：

1. 
   
2. [nihui@Nihui ~]$ smart-gui
   
3. Running child pid=10425.
   
4. Exec arg 0 = "/usr/sbin/userhelper".
   
5. Exec arg 1 = "-w".
   
6. Exec arg 2 = "smart-gui".
   
7. userhelper: ruid user = 'nihui'
   
8. userhelper: current user is nihui
   
9. userhelper: ruid user = 'nihui'
   
10. userhelper: user for auth = 'root'
    
11. userhelper: authenticating "root"
    
12. [Invalid UTF-8] userhelper: PAM retval = 28 (\xc4\xa3\xbf\xe9\xce\xb4\xd6\xaa)
    
13. userhelper: authenticating "root"
    
14. [Invalid UTF-8] userhelper: PAM retval = 28 (\xc4\xa3\xbf\xe9\xce\xb4\xd6\xaa)
    
15. userhelper: authenticating "root"
    
16. [Invalid UTF-8] userhelper: PAM retval = 28 (\xc4\xa3\xbf\xe9\xce\xb4\xd6\xaa)
    
17. userhelper: got PAM error 28.
    
18. userhelper: exiting with status 255.
    
19. EOF from child.
    
20. Child 10425 exited (looking for 10425).
    
21. Child 10425 exited normally, ret = 255.
    
22. Child returned exit status 255.
    
23. Status is "Unknown error.".
    
24. 
    
25. (smart-gui:10424): Gdk-CRITICAL **: gdk_x11_atom_to_xatom_for_display: assertion `atom != GDK_NONE' failed
    
26. Quitting main loop 1.
    
27. Completing startup notification for "".
    
28. Child exited, continuing.
    
29. [nihui@Nihui ~]$ python -c "print '\xc4\xa3\xbf\xe9\xce\xb4\xd6\xaa'"
    
30. 模块未知
    

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经检查，smart-gui 的 pam 文件中 /lib/security/pam_stack.so 模块已经不存在，按照 fedora 的 smart 包中的配置更新了此行。

再次尝试执行 smart-gui，不再提示未知错误。但仍然有问题。。。
调试信息输出：

1. 
   
2. [nihui@Nihui ~]$ smart-gui
   
3. Running child pid=10735.
   
4. Exec arg 0 = "/usr/sbin/userhelper".
   
5. Exec arg 1 = "-w".
   
6. Exec arg 2 = "smart-gui".
   
7. userhelper: ruid user = 'nihui'
   
8. userhelper: current user is nihui
   
9. userhelper: ruid user = 'nihui'
   
10. userhelper: user for auth = 'root'
    
11. userhelper: authenticating "root"
    
12. userhelper (cp): converse_pipe_called(num_msg=1, canceled=0)
    
13. userhelper (cp): sending user `root'
    
14. userhelper (cp): sending service `smart-gui'
    
15. userhelper (cp): sending fallback = 0.
    
16. [Invalid UTF-8] userhelper (cp): sending prompt (no echo) = "\xc3\xdc\xc2\xeb\xa3\xba".
    
17. userhelper (cp): sending expected response count = 1.
    
18. userhelper (cp): sending sync point.
    
19. Child message: (42)/"root"
    
20. User is "root".
    
21. Completing startup notification for "".
    
22. Child message: (40)/"smart-gui"
    
23. Service is "smart-gui".
    
24. Completing startup notification for "".
    
25. Child message: (41)/"0"
    
26. Fallback not allowed.
    
27. Completing startup notification for "".
    
28. userhelper (cp): got 0 responses, expected 1 <---- 定位在 userhelper.c 第 451 行
    
29. [Invalid UTF-8] userhelper: PAM retval = 7 (\xbc\xf8\xb6\xa8\xb9\xca\xd5\xcf)
    
30. userhelper: exiting with status 12.
    
31. [nihui@Nihui ~]$ python -c "print '\xc3\xdc\xc2\xeb\xa3\xba'"
    
32. 密码：
    
33. [nihui@Nihui ~]$ python -c "print '\xbc\xf8\xb6\xa8\xb9\xca\xd5\xcf'"
    
34. 鉴定故障
    

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[ 本帖最后由 nihui 于 2009-7-7 11:40 编辑 ]

sejishikong

看起来和pam有关？
我更新了pam。另外，usermode的配置是否有和pam有关的呢。

nihui

system-config-mouse 的 pam 文件也有 pam_stack.so 无效模块。