linux-kernel - 2.6.19-rc4-mm1: noidlehz problems

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Date:	Wed, 1 Nov 2006 13:23:19 +0100
From:	Pavel Machek <pavel@....cz>
To:	kernel list <linux-kernel@...r.kernel.org>, mingo@...hat.com
Cc:	Andrew Morton <akpm@...l.org>
Subject: 2.6.19-rc4-mm1: noidlehz problems

Hi!

First, it would be nice if we had someone listed as a maintainer of
noidlehz stuff...

Then... I'm getting strange messages from noidlehz each time I
unplug/replug AC power (perhaps due to interrupt latency?).

Disabling NO_HZ and high resolution timers due to timer broadcasting
(C3 stops local apic)
Adding 987988k swap on /dev/sda1.  Priority:-1 extents:1
across:987988k
Disabling NO_HZ and high resolution timers due to timer broadcasting
(C3 stops local apic)
EXT2-fs warning (device sda2): ext2_fill_super: mounting ext3
filesystem as ext2
pcmcia: Detected deprecated PCMCIA ioctl usage from process: cardmgr.
pcmcia: This interface will soon be removed from the kernel; please
expect breakage unless you upgrade to new tools.
pcmcia: see
http://www.kernel.org/pub/linux/utils/kernel/pcmcia/pcmcia.html for
details.
cs: IO port probe 0x310-0x380: clean.
cs: IO port probe 0xa00-0xaff: clean.
Disabling NO_HZ and high resolution timers due to timer broadcasting
(C3 stops local apic)
Disabling NO_HZ and high resolution timers due to timer broadcasting
(C3 stops local apic)
e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex
e1000: eth0: e1000_watchdog: 10/100 speed: disabling TSO
coda_read_super: Bad mount data
coda_read_super: device index: 0
coda_read_super: rootfid is (01234567.ffffffff.080519b0.00000000)
coda_upcall: Venus dead on (op,un) (7.2) flags 10
Failure of coda_cnode_make for root: error -19
acpiphp_glue: cannot get bridge info
Disabling NO_HZ and high resolution timers due to timer broadcasting
(C3 stops local apic)
Disabling NO_HZ and high resolution timers due to timer broadcasting
(C3 stops local apic)
Disabling NO_HZ and high resolution timers due to timer broadcasting
(C3 stops local apic)
Disabling NO_HZ and high resolution timers due to timer broadcasting
(C3 stops local apic)

...I'd expect one such message, not many of them. Something seems
seriously wrong there...

Plus, suspend to RAM and disk is broken in -rc4-mm1. Suspend to RAM
dies with screaming speaker, suspend to disk returns but machine is
mostly toast (and screaming, looks like timer problem, beeps never
end). I'll disable NO_HZ and try again.

							Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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