Re: su/kdesu not working

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On Monday November 9 2009 18:47:30 you wrote:
> Dj YB wrote:
> >> # strace -u foo -f su -
> >
> > wow that was incredibly long output
> >
> > the important line was about 1023 times repeating
> >
> > [pid 24172] close(3) = 0
> > [pid 24172] close(4) = 0
> > [pid 24172] close(5) = -1 (EBADF) bad file descriptor
> > [pid 24172] close(6) = -1 (EBADF) bad file descriptor
> > [pid 24172] close(7) = -1 (EBADF) bad file descriptor
> > [pid 24172] close(8) = -1 (EBADF) bad file descriptor
> > ...
> > [pid 24172] close(1023) = -1 (EBADF) bad file descriptor
> >
> > that was before and after the password entering step.
> > any idea what to do next?
> > it seems like a filesystem problem
> 
> No, that is not a significant part.
> This is just a new process starting and doing a "let me close
> every file descriptor they passed me" function.
> It actually closes only 3 and 4 as the others are not
> opened (closing them fails because they are simply not open).
> 
> Your problem is somewhere else.
> Try to see what happens before the access denied message.
> 

thanks
i found some lines that look suspicious

8854  open("/etc/shadow", O_RDONLY|O_CLOEXEC) = -1 EACCES (Permission 
denied)

and this are the last lines, I really don't know where to look, I can't tell 
what line indicate a failure...

...
8843  getuid32()                        = 500
8843  close(4)                          = 0
8843  munmap(0x5ad000, 6256)            = 0
8843  munmap(0x110000, 14844)           = 0
8843  munmap(0xf31000, 100768)          = 0
8843  munmap(0xd40000, 121836)          = 0
8843  munmap(0x7f0d000, 108520)         = 0
8843  munmap(0x114000, 12716)           = 0
8843  munmap(0x958000, 5972)            = 0
8843  munmap(0xf6b000, 7912)            = 0
8843  munmap(0x3ab000, 6264)            = 0
8843  munmap(0x4fd000, 12684)           = 0
8843  munmap(0xd84000, 196956)          = 0
8843  munmap(0xa98000, 294732)          = 0
8843  munmap(0x118000, 46784)           = 0
8843  munmap(0x1ce000, 4456)            = 0
8843  munmap(0x124000, 15776)           = 0
8843  munmap(0x6c6000, 15736)           = 0
8843  open("/usr/share/locale/en_US.UTF-8/LC_MESSAGES/coreutils.mo", 
O_RDONLY) = -1 ENOENT (No such file or directory)
8843  open("/usr/share/locale/en_US.utf8/LC_MESSAGES/coreutils.mo", 
O_RDONLY) = -1 ENOENT (No such file or directory)
8843  open("/usr/share/locale/en_US/LC_MESSAGES/coreutils.mo", O_RDONLY) 
= -1 ENOENT (No such file or directory)
8843  open("/usr/share/locale/en.UTF-8/LC_MESSAGES/coreutils.mo", 
O_RDONLY) = -1 ENOENT (No such file or directory)
8843  open("/usr/share/locale/en.utf8/LC_MESSAGES/coreutils.mo", O_RDONLY) 
= -1 ENOENT (No such file or directory)
8843  open("/usr/share/locale/en/LC_MESSAGES/coreutils.mo", O_RDONLY) = -1 
ENOENT (No such file or directory)
8843  write(2, "su: "..., 4)            = 4
8843  write(2, "incorrect password"..., 18) = 18
8843  write(2, "\n"..., 1)              = 1
8843  close(1)                          = 0
8843  close(2)                          = 0
8843  exit_group(1)                     = ?

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