From owner-svn-src-head@freebsd.org Sun Feb 18 16:03:51 2018 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 64D14F1416B; Sun, 18 Feb 2018 16:03:51 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 173E67D9FA; Sun, 18 Feb 2018 16:03:51 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 12149642A; Sun, 18 Feb 2018 16:03:51 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id w1IG3op3035924; Sun, 18 Feb 2018 16:03:50 GMT (envelope-from markj@FreeBSD.org) Received: (from markj@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id w1IG3oYd035923; Sun, 18 Feb 2018 16:03:50 GMT (envelope-from markj@FreeBSD.org) Message-Id: <201802181603.w1IG3oYd035923@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: markj set sender to markj@FreeBSD.org using -f From: Mark Johnston Date: Sun, 18 Feb 2018 16:03:50 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r329521 - head/sys/x86/iommu X-SVN-Group: head X-SVN-Commit-Author: markj X-SVN-Commit-Paths: head/sys/x86/iommu X-SVN-Commit-Revision: 329521 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 18 Feb 2018 16:03:51 -0000 Author: markj Date: Sun Feb 18 16:03:50 2018 New Revision: 329521 URL: https://svnweb.freebsd.org/changeset/base/329521 Log: Don't include DMAR map entry zone items in kernel dumps. Such items may be allocated in the I/O path used by the dumper, potentially causing the dump to fail. Since there is some precedent in the DMAR driver for avoiding this problem using _NODUMP, apply this workaround to the zone as well. Reported and tested by: mmacy Reviewed by: kib MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D14422 Modified: head/sys/x86/iommu/intel_gas.c Modified: head/sys/x86/iommu/intel_gas.c ============================================================================== --- head/sys/x86/iommu/intel_gas.c Sun Feb 18 15:27:24 2018 (r329520) +++ head/sys/x86/iommu/intel_gas.c Sun Feb 18 16:03:50 2018 (r329521) @@ -81,7 +81,7 @@ intel_gas_init(void) dmar_map_entry_zone = uma_zcreate("DMAR_MAP_ENTRY", sizeof(struct dmar_map_entry), NULL, NULL, - NULL, NULL, UMA_ALIGN_PTR, 0); + NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_NODUMP); } SYSINIT(intel_gas, SI_SUB_DRIVERS, SI_ORDER_FIRST, intel_gas_init, NULL);