From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Zhang Haoyu" <zhanghy@sangfor.com>
Subject: [question] lots of interrupts injected to vm when pressing some key w/o releasing
Date: Thu, 20 Nov 2014 10:20:58 +0800
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Cc: "Paolo Bonzini" <pbonzini@redhat.com>,
	"Alex Williamson" <alex.williamson@redhat.com>,
	"Zhang, Yang Z" <yang.z.zhang@intel.com>,
	"Xiao Guangrong" <xiaoguangrong@linux.vnet.ibm.com>,
	"Michael S.Tsirkin" <mst@redhat.com>,
	"Gleb Natapov" <gleb@cloudius-systems.com>
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Hi all,

If I press the one of "Insert/Delete/Home/End/PageUp/PageDown/UpArrow/
DownArrow/LeftArrow/RightArrow" key w/o releasing, then lots of interrupts
will be injected to vm(win7/win2008), about 8000/s, the system become very slow,
bringing very bad experience. But the other keys are okay.
And, linux guest has no this problem.

If I remove the commit of 0bc830b05c667218d703f2026ec866c49df974fc, then the
problem disappeared, but win7 guest got stuck at booting stage.
And so strange that If the vm has only one vcpu, then the problem also disappeared.

Any ideas?

Thanks,
Zhang Haoyu