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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