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    Subjectwait_even_interruptible_timeout(), signal, spin_lock() = system hang
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    After this sequence of calls, system hangs (smp, x86 box based with
    .34 kernel), can ping only.
    I have not been able to break in with Alt Sysrq t, working on that

    rc = wait_event_interruptible_timeout(ses->server->response_q,
    (midQ->midState != MID_REQUEST_SUBMITTED), timeout);
    if (rc < 0) {
    cFYI(1, ("command 0x%x interrupted", midQ->command));
    return -1;
    }

    and when function that invoking function after coming out with ERESTARTSYS
    (I kill the command with Ctrl C) calls
    spin_lock(&GlobalMid_Lock);

    system hangs. If I sleep before return -1 (e.g. msleep(1), no hang)

    I do not have to use wait_event_interruptible_timeout and no such problems with
    wait_event_timeout, it is only when signal/interrupt is involved, I
    run into this problem

    Any pointers/ideas what could be happening, would be really really appreciated.

    Regards,

    Shirish


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