linux-kernel - Re: [PATCH 8/8] x86: I/O APIC: Timer through 8259A second-chance

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Date:	Thu, 5 Jun 2008 20:47:44 +0100 (BST)
From:	"Maciej W. Rozycki" <macro@...ux-mips.org>
To:	Cyrill Gorcunov <gorcunov@...il.com>
cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
	the arch/x86 maintainers <x86@...nel.org>
Subject: Re: [PATCH 8/8] x86: I/O APIC: Timer through 8259A second-chance

On Thu, 5 Jun 2008, Cyrill Gorcunov wrote:

> Since I've got the same hang by using qemu - i think i could test ;)

 I can reproduce the hang, except with a slightly different options.  I
have spotted the places where the watchdog is set up incorrectly.  I shall
post fixes shortly, once I have got them polished and tested.  Feel free
to throw them at your qemu.

 Also it's worth noting there's more breakage of the NMI watchdog for this
configuration ("maxcpus=1 noapic") -- it fails to tick on the CPU #0 on my
system for some reason, but that's well beyond the scope of this series,
so I am not going to look into it.

  Maciej
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