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    SubjectRe: [BUG] New Kernel Bugs
    On Tue, 13 Nov 2007, Mark Lord wrote:

    > Andrew Morton wrote:
    > > On Mon, 12 Nov 2007 22:42:32 -0800 "Natalie Protasevich"
    > > <protasnb@gmail.com> wrote:
    > ..
    > > > with CONFIG_NO_HZ and/or CONFIG_HPET_TIMER set kernel 2.6.23 doesn't
    > > > boot (ARM, Timer)
    > > > http://bugzilla.kernel.org/show_bug.cgi?id=9229
    > > > Kernel: 2.6.23
    > >
    > > No response from developers
    > ..

    The bug report is bogus. ARM has no CONFIG_HPET_TIMER.

    > Note: that same bug exists/existed on i386 back when NO_HZ was
    > introduced (2.6.21?). I still see it from time to time on my Quad core
    > system (very rare), but not any more on my Duo notebook where it used
    > to happen about 1 in n boots (n < 10).
    >
    > AFAICT no fix was ever released for it.

    Hmm, at which point does the boot stop ?

    > > > Suspend to RAM resume hangs on a tickless (NO_HZ) kernel
    > > > http://bugzilla.kernel.org/show_bug.cgi?id=9275
    > > > Kernel: 2.6.23
    > > > This is HP notebook nc6320 T2400 945GM
    > > No response from developers
    > ..
    >
    > I *still* get very slow resume-from-RAM quite often here
    > (new in 2.6.22 kernel, wasn't there in early 2.6.23-rc*).

    Hmm. Which one 22 or 23 ?

    > Something eventually times out after a minute or so
    > and it comes back. Cannot make it happen reliably,
    > unless I'm in a hurry to get something done. :)
    > I suspect USB here, probably the same loopy bug that
    > we added a "loop limit failsafe" for back in 2.6.21(?).

    Do you have a pointer to that please ?

    Thanks,

    tglx
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