From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 89EE3176FA5 for ; Thu, 26 Sep 2024 12:16:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727352999; cv=none; b=ACcrfb47hF/s+MOe9h4cMCwP6LagpXuBUhvB+iVXDIdhkQ25B4xYbRftSgXOcIZ1tc6vigSKfeXNFJciMvJ1ZLZQgLeJhwj8DlF33+y5g+REqpr93NFAD1IsphMVj32yadtySLm7ju6sS+gZGU/3s3G0VqE8j8xIS3ZVdFuZ4X4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727352999; c=relaxed/simple; bh=RRgwc5xpe3X5w8W6KmFXNzg5aq2ZB4mn6BCPUcswxhw=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=ua6Kq6ULpGgKw1MiGuasC3aIQI7FEYb6DsiXYl7SghGNgOwXoIicOaVkx2D1d75YER3QsTwLoz+WMb73ub2/DaPKoWWCXMa0xAZFSeyigDdeohCwyteJAQram5ag3b+dWoYBv+zAK7L076XHYlw1aIIpEkh7x0QVEqQVXzExO70= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=casper.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=SnpaCdz4; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=casper.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="SnpaCdz4" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=MIME-Version:Content-Type:References: In-Reply-To:Date:Cc:To:From:Subject:Message-ID:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=RRgwc5xpe3X5w8W6KmFXNzg5aq2ZB4mn6BCPUcswxhw=; b=SnpaCdz4mo+FSbm8EuIC2J9BYv IF9k6VtDD45igBBhIenBSGQ7TvCrVvTtNxslgUfTuqIXSJWnWHCqBpoSE12fcJ0gvku3v1DcY3om1 q+BkGZjDfFmjNRYnzhEzmoy1hMQ0ooikcF6R1wKQ//YTCYstYGOJjHs6X+bsPTFBLPycvqUdMUbCf R+39tLrYzZxSpPWNhLhwPALk/tEhj53OQ41ZJuOwd0wcEh1DxZv+y1cW8JTc8XD6ujWzvKrpr180A B5I+b8zmiUyyKRVZ08OSfS5uq6emYpW7Qb9AcIdFK6lylu+eLhH80BeqJmK5aQ+pxQ+4xhjMBFjOR 1cTsuRtw==; Received: from [2001:8b0:10b:5:16cf:fc6a:25d9:f696] (helo=u3832b3a9db3152.ant.amazon.com) by casper.infradead.org with esmtpsa (Exim 4.98 #2 (Red Hat Linux)) id 1stnQ7-00000006aqc-3r6u; Thu, 26 Sep 2024 12:16:32 +0000 Message-ID: Subject: Re: [PATCH v3] lockdep: add lockdep_cleanup_dead_cpu() From: David Woodhouse To: Boqun Feng Cc: Thomas Gleixner , Peter Zijlstra , Ingo Molnar , Will Deacon , Waiman Long , linux-kernel , Juergen Gross Date: Thu, 26 Sep 2024 13:16:32 +0100 In-Reply-To: References: <635fa006e8f3816b4a36b964d6281f0d8efa789b.camel@infradead.org> <2b8c36376fa01fa6a1bac9570eb7d41e7e232a29.camel@infradead.org> <1da59ef5df8e8a2bebd31535fa13264113a316ff.camel@infradead.org> Content-Type: multipart/signed; micalg="sha-256"; protocol="application/pkcs7-signature"; boundary="=-HkG1gd9cqV8n3J+mHLT+" User-Agent: Evolution 3.44.4-0ubuntu2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html --=-HkG1gd9cqV8n3J+mHLT+ Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Thu, 2024-09-26 at 05:09 -0700, Boqun Feng wrote: >=20 >=20 > I think this is already fixed by: >=20 > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A09bb69ba4c177 ("ACPI: proc= essor_idle: use raw_safe_halt() in acpi_idle_play_dead()") >=20 > , no? That patch fixed the bug. *This* patch fixes the fact that lockdep didn't *tell* us about the bug. --=-HkG1gd9cqV8n3J+mHLT+ Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCCEkQw ggYQMIID+KADAgECAhBNlCwQ1DvglAnFgS06KwZPMA0GCSqGSIb3DQEBDAUAMIGIMQswCQYDVQQG EwJVUzETMBEGA1UECBMKTmV3IEplcnNleTEUMBIGA1UEBxMLSmVyc2V5IENpdHkxHjAcBgNVBAoT FVRoZSBVU0VSVFJVU1QgTmV0d29yazEuMCwGA1UEAxMlVVNFUlRydXN0IFJTQSBDZXJ0aWZpY2F0 aW9uIEF1dGhvcml0eTAeFw0xODExMDIwMDAwMDBaFw0zMDEyMzEyMzU5NTlaMIGWMQswCQYDVQQG EwJHQjEbMBkGA1UECBMSR3JlYXRlciBNYW5jaGVzdGVyMRAwDgYDVQQHEwdTYWxmb3JkMRgwFgYD VQQKEw9TZWN0aWdvIExpbWl0ZWQxPjA8BgNVBAMTNVNlY3RpZ28gUlNBIENsaWVudCBBdXRoZW50 aWNhdGlvbiBhbmQgU2VjdXJlIEVtYWlsIENBMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC AQEAyjztlApB/975Rrno1jvm2pK/KxBOqhq8gr2+JhwpKirSzZxQgT9tlC7zl6hn1fXjSo5MqXUf 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