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    SubjectRe: 2.6.25.3: su gets stuck for root
    Harald Dunkel wrote:
    > Joe Peterson wrote:
    >> Hi Harold,
    >>
    >> Doing "ps" while hung shows stty in the "T" state. "killall -9 stty"
    >> releases it.
    >>
    >
    > Does strace give you the same output if you attach it to the blocking
    > stty (strace -p $pid)?
    >
    > I got
    >
    >
    > :
    > ioctl(0, SNDCTL_TMR_START or TCSETS, {B38400 opost isig icanon echo ...}) = ? ERESTARTSYS (To be restarted)
    > --- SIGTTOU (Stopped (tty output)) @ 0 (0) ---
    > --- SIGTTOU (Stopped (tty output)) @ 0 (0) ---

    Yep, almost the same. I get (repeating):

    ioctl(0, SNDCTL_TMR_STOP or TCSETSW, {B38400 opost isig icanon echo
    ...}) = ? ERESTARTSYS (To be restarted)
    --- SIGTTOU (Stopped (tty output)) @ 0 (0) ---
    --- SIGTTOU (Stopped (tty output)) @ 0 (0) ---


    -Joe


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