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Date: Mon, 28 Feb 2011 17:05:13 +0100
From: Jan Kiszka <jan.kiszka@siemens.com>
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Subject: [Qemu-devel] Re: [PATCH v2 13/24] kvm: Set up signal mask also for
	!CONFIG_IOTHREAD
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To: Avi Kivity <avi@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>, qemu-devel@nongnu.org, kvm@vger.kernel.org

On 2011-02-28 17:02, Jan Kiszka wrote:
> On 2011-02-28 16:55, Avi Kivity wrote:
>> On 02/01/2011 11:15 PM, Jan Kiszka wrote:
>>> From: Jan Kiszka<jan.kiszka@siemens.com>
>>>
>>> Block SIG_IPI, unblock it during KVM_RUN, just like in io-thread mode.
>>> It's unused so far, but this infrastructure will be required for
>>> self-IPIs and to process SIGBUS plus, in KVM mode, SIGIO and SIGALRM. As
>>> Windows doesn't support signal services, we need to provide a stub for
>>> the init function.
>>>
>>
>> This patch breaks qemu-kvm after merging.  The symptoms are that Windows
>> XP x64 does not respond when netcat connects to some server in it, via
>> -net user,hostfwd.  The vcpu thread loops indefinitely on KVM_EXIT_INTR,
>> which is consistent with signals being messed up.
> 
> Does the same test case work with qemu, iothread on and off? Just to

Err, "iothread on" makes no sense here, of course.

> ensure we are not hunting an issue with the patch itself but of the merge.
> 
> Will have a look as well.
> 

Jan

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