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SubjectRe: [BUG] New Kernel Bugs
Andrew Morton wrote:
> On Mon, 12 Nov 2007 22:42:32 -0800 "Natalie Protasevich" <> wrote:
>> with CONFIG_NO_HZ and/or CONFIG_HPET_TIMER set kernel 2.6.23 doesn't
>> boot (ARM, Timer)
>> Kernel: 2.6.23
> No response from developers

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.

>> Suspend to RAM resume hangs on a tickless (NO_HZ) kernel
>> 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*).
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(?).
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