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    SubjectRe: Real-Time Preemption, -RT-2.6.12-final-V0.7.50-45

    * Steven Rostedt <rostedt@goodmis.org> wrote:

    > Hi Ingo,
    >
    > I've just downloaded 51-09 and tried running it here on a normal intel
    > pentium4 box here at my customers site. It included some hotplug PCI
    > modules (I don't know why since it's doesn't have hotplug devices) and
    > I got some init_MUTEX_LOCKED bugs on them. Below you will find the
    > patch (I assume that compat_semaphore is still used).

    thanks, i've applied it, and it's now in 51-11.

    > Anyway, I also want to let you know that the e100 does not work. It's
    > detected, but it wont bring up DHCP, and when I manually configued it,
    > it just froze (the process not the machine). But when I did a sysrq-t,
    > the machine froze up after it completed with some RT yeilding bug.
    > Here's what was last to spit out:

    is PCI_MSI enabled by any chance? That is known to break level-triggered
    IOAPIC irqs and devices.

    > NETDEV WATCHDOG: eth0: transmit timed out
    > BUG: events/0:10 RT task yield()-ing!

    i have replaced this yield() with msleep(1) in -51-11, but that's just
    fixing the symptom.

    Ingo
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