From: Avi Kivity <avi@redhat.com>
To: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Cc: Jan Kiszka <jan.kiszka@siemens.com>,
Marcelo Tosatti <mtosatti@redhat.com>, kvm <kvm@vger.kernel.org>,
Takuya Yoshikawa <takuya.yoshikawa@gmail.com>
Subject: Re: [PATCH] KVM: x86: Drop unused return value of kvm_mmu_remove_some_alloc_mmu_pages
Date: Tue, 06 Dec 2011 12:41:19 +0200 [thread overview]
Message-ID: <4EDDF14F.70804@redhat.com> (raw)
In-Reply-To: <4EDDF106.7080602@redhat.com>
On 12/06/2011 12:40 PM, Avi Kivity wrote:
> >
> > Is there any need for mmu_shrink()?
>
> Without it a user can easily pin large amounts of kernel memory by
> filling guest memory with page tables and shadowing them all.
It would make an interesting test case, btw, to try to crash the kernel
this way, and exercise the shrinker.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2011-12-06 10:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-02 17:35 [PATCH] KVM: x86: Drop unused return value of kvm_mmu_remove_some_alloc_mmu_pages Jan Kiszka
2011-12-04 16:48 ` Avi Kivity
2011-12-06 9:56 ` Takuya Yoshikawa
2011-12-06 10:40 ` Avi Kivity
2011-12-06 10:41 ` Avi Kivity [this message]
2011-12-06 10:52 ` Takuya Yoshikawa
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