Re: [PATCH 05/15] Coalesce userspace/kernel irqchip interrupt injection logic. - Dmitry Eremin-Solenikov

From: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
To: Gleb Natapov <gleb@redhat.com>
Cc: kvm@vger.kernel.org
Subject: Re: [PATCH 05/15] Coalesce userspace/kernel irqchip interrupt injection logic.
Date: Tue, 14 Apr 2009 18:32:29 +0400	[thread overview]
Message-ID: <bc64b4640904140732r7dd3240bue15a820734cf8cb3@mail.gmail.com> (raw)
In-Reply-To: <20090414142403.GC20739@redhat.com>

2009/4/14 Gleb Natapov <gleb@redhat.com>:
> On Tue, Apr 14, 2009 at 02:14:04PM +0000, Dmitry Eremin-Solenikov wrote:
>> Gleb Natapov wrote:
>>
>> > Start to use interrupt/exception queues like VMX does. This also fix the
>> > bug that if exit was caused by a guest internal exception access to IDT
>> > the exception was not reinjected.
>>
>> This patch broke KVM for me: after it is applied (to the tip of avi's git tree),
>> linux inside KVM (version 84 from Debian) stops booting, moaning about lost
>> interrupts from ide. The KVM is executed inside qemu-system-x86_64,
>> version 0.10.2.
>>
> Please apply next patch in the series too. This one will not work
> without it. But better yet can you please test entire series.

After applying the next patch (or the whole serie), I get the following messages
during initramfs drivers probe:

Clocksource tsc unstable (delta...)
no cont in shutdown!
floppy0: FDC access conflict!

Then kernel boot stalls. I'll try gdbing into kernel but this may
require lots of efforts.
I don't quite understand how do these two patches influence FDC emulation, but
they do. Tell me if you need any additional info.

-- 
With best wishes
Dmitry