From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2E627C77B7C for ; Thu, 11 May 2023 23:47:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239412AbjEKXrH (ORCPT ); Thu, 11 May 2023 19:47:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49526 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238915AbjEKXrG (ORCPT ); Thu, 11 May 2023 19:47:06 -0400 Received: from mail-pj1-x1049.google.com (mail-pj1-x1049.google.com [IPv6:2607:f8b0:4864:20::1049]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BD6031AC for ; Thu, 11 May 2023 16:47:05 -0700 (PDT) Received: by mail-pj1-x1049.google.com with SMTP id 98e67ed59e1d1-24e4acd6b61so8735847a91.0 for ; Thu, 11 May 2023 16:47:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1683848825; x=1686440825; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=hDjdKrWUHGsVMJ2gMSx8epGixnLnx2dMDqo9vhiuXBs=; b=qhfsMa2jOiqkhf4RshIh3PEfjniiGYeJZDmwYo7xFuYeX8NBFb1lf+uO9tQ3WplQ/w cVkjbQau+GmcYpI3dJK+rjicYLHgj4wcOYfmY2DaMSUmr2qIah8WfJPUbXthoV2intEC xGDaGhz5sn9ApDEPBi0VVUyUlPNu1yUUYmKltJsQaKTSjSDE8uA6CYgaE8Bsdp8wRluO gug0ajehSHtekpAf9Z4bCcN4fewRrzhUJx50iTC25W4vdQxI8EszvPH/Ak4r01BwXhHn ax1kUgt+eqXoB7JOVaKfY8Sv6/EejSNC7saZhILGktquZbb5XvHdBDDV0s+xAXwpPMVD YKOA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683848825; x=1686440825; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=hDjdKrWUHGsVMJ2gMSx8epGixnLnx2dMDqo9vhiuXBs=; b=YwezTPT2BEJDevXacp/7UCx7JDyLeG3ewb1IvfoJu+y6jK3wmaQ+JGTQyYevDjnTFv b7bhZNE95mjRhQhvmwg07GzQWGav/3jb4zyqzeKznvoEXCi0BkV7zmJ8HifkCy6gpAlV vm5zesvesgNxI1iQAZWCGNKo4zjw42xpLFsNLrUM6hkVxWQPqWShYZAMceZwsXqh2NsU dhnU1nvhKYhoHUOmAgTiQ8EjnB4paBE3unEn1pLIgmlWOr12v6w9Mp4QIti8XQskMQlC KEqsy8u+x1C4toLRkFboqoXr6ybmF+9ka26ivxsSL174a6oTqiDJ+I7wTenGZ79+Rqym fAtw== X-Gm-Message-State: AC+VfDyXUQ1JhvcBEqKXB5Tyd3CnvvagpiOBs1TVXylZXpx36GuzSBFp 03GZYaakx2r76/CifZVPicf1uQkB64A= X-Google-Smtp-Source: ACHHUZ7Mjlxci3PIOr9utUnGxTlbJJRsGOa3EtjmfyiADDuMluEgDU+fA16XjSxvBGqRMOfxImArZV1V5GY= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a17:90a:c7d0:b0:24d:df95:fdc5 with SMTP id gf16-20020a17090ac7d000b0024ddf95fdc5mr6945096pjb.2.1683848825348; Thu, 11 May 2023 16:47:05 -0700 (PDT) Date: Thu, 11 May 2023 16:47:03 -0700 In-Reply-To: Mime-Version: 1.0 References: Message-ID: Subject: Re: Please apply commit 6470accc7ba9 ("KVM: x86: hyper-v: Avoid calling kvm_make_vcpus_request_mask() with vcpu_mask==NULL") to v5.10.y From: Sean Christopherson To: Sasha Levin Cc: Salvatore Bonaccorso , stable , Greg Kroah-Hartman , Vitaly Kuznetsov , Paolo Bonzini , Jared Epp Content-Type: text/plain; charset="us-ascii" Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Thu, May 11, 2023, Sasha Levin wrote: > On Wed, May 10, 2023 at 02:57:22PM +0200, Salvatore Bonaccorso wrote: > > Hi > > > > After we updated the kernel in Debian bullseye from 5.10.162 to > > 5.10.178, we got a report from Jared Epp in > > https://bugs.debian.org/1035779 that a Windows Guest VM no longer > > booted, and Kernel reporting: > > This KVM commit wasn't tagged for stable, and would need an ack from the > KVM maintainers to apply. For grabbing commit 6470accc7ba9, Acked-by: Sean Christopherson If it helps, Fixes: 6100066358ee ("KVM: Optimize kvm_make_vcpus_request_mask() a bit") That optimization got pulled in without the undocumented dependency due to: Stable-dep-of: 2b0128127373 ("KVM: Register /dev/kvm as the _very_ last thing during initialization")