From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sasha Levin <levinsasha928@gmail.com>
Subject: KVM_GET_SUPPORTED_CPUID returning -E2BIG
Date: Sun, 08 May 2011 08:15:43 +0300
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Cc: Ingo Molnar <mingo@elte.hu>, Pekka Enberg <penberg@kernel.org>,
	Cyrill Gorcunov <gorcunov@gmail.com>,
	Asias He <asias.hejun@gmail.com>,
	Prasad Joshi <prasadjoshi124@gmail.com>
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Hello,

I'm seeing a case where KVM tools occasionally fails with the following
error message: "KVM_GET_SUPPORTED_CPUID failed: Argument list too long",
which means that we get -E2BIG back from KVM_GET_SUPPORTED_CPUID.

Why would it happen if we pass KVM_MAX_CPUID_ENTRIES as the max number
of entries (in the nent field of struct kvm_cpuid2)?

Also, Why would it happen randomly and not each time the code is run?

-- 

Sasha.