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Mon, 08 Apr 2024 19:01:35 -0700 (PDT) Date: Mon, 8 Apr 2024 19:01:23 -0700 In-Reply-To: <20240315143507.102629-1-mlevitsk@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240315143507.102629-1-mlevitsk@redhat.com> X-Mailer: git-send-email 2.44.0.478.gd926399ef9-goog Message-ID: <171262713897.1419961.5139969748119275014.b4-ty@google.com> Subject: Re: [PATCH] KVM: selftests: fix max_guest_memory_test with more that 256 vCPUs From: Sean Christopherson To: Sean Christopherson , kvm@vger.kernel.org, Maxim Levitsky Cc: linux-kernel@vger.kernel.org, Paolo Bonzini , linux-kselftest@vger.kernel.org, Shuah Khan Content-Type: text/plain; charset="utf-8" On Fri, 15 Mar 2024 10:35:07 -0400, Maxim Levitsky wrote: > max_guest_memory_test uses ucalls to sync with the host, but > it also resets the guest RIP back to its initial value in between > tests stages. > > This makes the guest never reach the code which frees the ucall struct > and since a fixed pool of 512 ucall structs is used, the test starts > to fail when more that 256 vCPUs are used. > > [...] Applied to kvm-x86 fixes, thanks! [1/1] KVM: selftests: fix max_guest_memory_test with more that 256 vCPUs https://github.com/kvm-x86/linux/commit/0ef2dd1f4144 -- https://github.com/kvm-x86/linux/tree/next