From nobody Thu Jan 20 10:29:08 2022 X-Original-To: bugs@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 9125E1970E7C for ; Thu, 20 Jan 2022 10:29:08 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Jfdz81vNkz4g2r for ; Thu, 20 Jan 2022 10:29:08 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 1E5A8267CD for ; Thu, 20 Jan 2022 10:29:08 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 20KAT85G080484 for ; Thu, 20 Jan 2022 10:29:08 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 20KAT8No080483 for bugs@FreeBSD.org; Thu, 20 Jan 2022 10:29:08 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 261338] [PATCH] kernel panic "bad pte" under heavy CPU load on 12.2 and 12.3 (i386) Date: Thu, 20 Jan 2022 10:29:08 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 12.3-RELEASE X-Bugzilla-Keywords: panic, patch X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: avg@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1642674548; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=J26hY6SkBeJ9RTTZCzBxImDByD3dCIHu43B5rR0juCk=; b=yrGVbsGpq8RmeWXMUMrzanSkdQxAmJooTsQOE9GDlT4XNh/Z9ACJl6qEYfFpgb47dtT2pE ATwlFulMhXzJgioqRXdX89oqMXQqPEq1GRn9939DlCm7rixTMaRH484mb8fVqdP4IVJm4W kUeyZiihVrZjcyjsLoyN1fKuSOt59NtS3JwiyVHcK2Fnj1mCUO3zOV+kqGsC+ZtL+Er5uC CblasSWe9xbIdpX0IzIh5jh+ccpNaSf6y956JhFb7FiRFyB7Tk+vHdd0Ll3ElbbVWJdDYC DESUhtskCgRMRibbYLlleXwaa35Y+NK2dh+eBTPVD01ebM/sJeebEAh/RxDkdg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1642674548; a=rsa-sha256; cv=none; b=Fq0t25CQ5on4p040xv3Q93BWDIzaSby6H1plFGeNJNyaqvYkxhNUa3EjaHxY5gYfiVPiqJ 2/dWVj0+bCwxDLAAOCGZrf9ryRWS3HCgmd2Cj9fZNB2xWDyGc8wNoNZS+5IXjAjey1J9rE qUVS7nXaDEPbieIBjp5Ozk6Omy7zaLKP1IFLUQkMyt+oMa53bs/Ql/aHsGg1Kuo8s9hrQK PSBOfK32cwQ3s1VA9hsvn8y6YPtqi6TAdz3ZsTmoDUIGqcfY5lj1P0Hd8n8YG3Qj6keGil mPKqP5gnuIQm7MkBzXRmv1yyl8IeVW5ZOPd18WmxL8sWyhRNr5nt6r7iteINcA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D261338 --- Comment #7 from Andriy Gapon --- (In reply to Dmitry K. from comment #6) Thank you for the additional analysis. The nested pinning is indeed not a problem at all. I just thought that it was redundant but apparently it is only partially so. So, your proposed patch looks mostly good to me except that it would break amd64. --=20 You are receiving this mail because: You are the assignee for the bug.=