From owner-svn-src-all@FreeBSD.ORG Mon Jun 3 17:13:38 2013 Return-Path: <owner-svn-src-all@FreeBSD.ORG> Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 8FBEC973; Mon, 3 Jun 2013 17:13:38 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) by mx1.freebsd.org (Postfix) with ESMTP id 680491B41; Mon, 3 Jun 2013 17:13:38 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.7/8.14.7) with ESMTP id r53HDcG0085290; Mon, 3 Jun 2013 17:13:38 GMT (envelope-from kib@svn.freebsd.org) Received: (from kib@localhost) by svn.freebsd.org (8.14.7/8.14.5/Submit) id r53HDcTq085288; Mon, 3 Jun 2013 17:13:38 GMT (envelope-from kib@svn.freebsd.org) Message-Id: <201306031713.r53HDcTq085288@svn.freebsd.org> From: Konstantin Belousov <kib@FreeBSD.org> Date: Mon, 3 Jun 2013 17:13:38 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r251313 - in stable/8/sys: amd64/amd64 i386/i386 X-SVN-Group: stable-8 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" <svn-src-all.freebsd.org> List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-all>, <mailto:svn-src-all-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/svn-src-all> List-Post: <mailto:svn-src-all@freebsd.org> List-Help: <mailto:svn-src-all-request@freebsd.org?subject=help> List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-all>, <mailto:svn-src-all-request@freebsd.org?subject=subscribe> X-List-Received-Date: Mon, 03 Jun 2013 17:13:38 -0000 Author: kib Date: Mon Jun 3 17:13:37 2013 New Revision: 251313 URL: http://svnweb.freebsd.org/changeset/base/251313 Log: MFC r251033: When handling an exception from the attempt from loading the faulting context on return from the trap handler, re-enable the interrupts on i386 and amd64. Modified: stable/8/sys/amd64/amd64/exception.S stable/8/sys/i386/i386/exception.s Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/ (props changed) stable/8/sys/i386/ (props changed) Modified: stable/8/sys/amd64/amd64/exception.S ============================================================================== --- stable/8/sys/amd64/amd64/exception.S Mon Jun 3 17:07:57 2013 (r251312) +++ stable/8/sys/amd64/amd64/exception.S Mon Jun 3 17:13:37 2013 (r251313) @@ -818,6 +818,10 @@ doreti_iret_fault: .globl ds_load_fault ds_load_fault: movl $T_PROTFLT,TF_TRAPNO(%rsp) + testl $PSL_I,TF_RFLAGS(%rsp) + jz 1f + sti +1: movq %rsp,%rdi call trap movw $KUDSEL,TF_DS(%rsp) @@ -827,6 +831,10 @@ ds_load_fault: .globl es_load_fault es_load_fault: movl $T_PROTFLT,TF_TRAPNO(%rsp) + testl $PSL_I,TF_RFLAGS(%rsp) + jz 1f + sti +1: movq %rsp,%rdi call trap movw $KUDSEL,TF_ES(%rsp) @@ -835,6 +843,10 @@ es_load_fault: ALIGN_TEXT .globl fs_load_fault fs_load_fault: + testl $PSL_I,TF_RFLAGS(%rsp) + jz 1f + sti +1: movl $T_PROTFLT,TF_TRAPNO(%rsp) movq %rsp,%rdi call trap @@ -846,6 +858,10 @@ fs_load_fault: gs_load_fault: popfq movl $T_PROTFLT,TF_TRAPNO(%rsp) + testl $PSL_I,TF_RFLAGS(%rsp) + jz 1f + sti +1: movq %rsp,%rdi call trap movw $KUG32SEL,TF_GS(%rsp) @@ -855,6 +871,10 @@ gs_load_fault: .globl fsbase_load_fault fsbase_load_fault: movl $T_PROTFLT,TF_TRAPNO(%rsp) + testl $PSL_I,TF_RFLAGS(%rsp) + jz 1f + sti +1: movq %rsp,%rdi call trap movq PCPU(CURTHREAD),%r8 @@ -866,6 +886,10 @@ fsbase_load_fault: .globl gsbase_load_fault gsbase_load_fault: movl $T_PROTFLT,TF_TRAPNO(%rsp) + testl $PSL_I,TF_RFLAGS(%rsp) + jz 1f + sti +1: movq %rsp,%rdi call trap movq PCPU(CURTHREAD),%r8 Modified: stable/8/sys/i386/i386/exception.s ============================================================================== --- stable/8/sys/i386/i386/exception.s Mon Jun 3 17:07:57 2013 (r251312) +++ stable/8/sys/i386/i386/exception.s Mon Jun 3 17:13:37 2013 (r251313) @@ -417,6 +417,7 @@ doreti_popl_es_fault: pushl %fs .globl doreti_popl_fs_fault doreti_popl_fs_fault: + sti movl $0,TF_ERR(%esp) /* XXX should be the error code */ movl $T_PROTFLT,TF_TRAPNO(%esp) jmp alltraps_with_regs_pushed