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    SubjectRe: 2.6.14-rc4-rt7

    * Daniel Walker <> wrote:

    > > > I found this latency ~5 minutes after boot up, no load . It looks like
    > > > vgacon_scroll() has a memset like operation which can grow.
    > >
    > > do you have PRINTK_IGNORE_LOGLEVEL enabled? If yes then much of the
    > > printk code will run with interrupts disabled - hence non-preemptable.
    > > PRINTK_IGNORE_LOGLEVEL is a debugging feature for developers. I have
    > > added an extra explanation to the Kconfig, see below.
    > I was just running a "make defconfig" and I enabled latency tracing .
    > PRINTK_IGNORE_LOGLEVEL defaults to off (doesn't it?), and I didn't
    > make any changes to it . Unless it get switched on by something else
    > ..
    > It looks like the logic might be reversed in release_console_sem() .

    yeah, it is reversed. I 'fixed' it a couple of releases ago - but in
    fact it was correct previously and i introduced this bug. I have fixed
    this in my tree and have released -rt9 with the fix.

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      Last update: 2005-10-18 22:28    [W:0.022 / U:17.456 seconds]
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