From owner-svn-src-stable-11@freebsd.org Mon Aug 21 17:29:39 2017 Return-Path: Delivered-To: svn-src-stable-11@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 2DB8FDE990E; Mon, 21 Aug 2017 17:29:39 +0000 (UTC) (envelope-from jhb@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 mx1.freebsd.org (Postfix) with ESMTPS id F0D7F7C9FE; Mon, 21 Aug 2017 17:29:38 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v7LHTcAt019558; Mon, 21 Aug 2017 17:29:38 GMT (envelope-from jhb@FreeBSD.org) Received: (from jhb@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v7LHTcV8019557; Mon, 21 Aug 2017 17:29:38 GMT (envelope-from jhb@FreeBSD.org) Message-Id: <201708211729.v7LHTcV8019557@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: jhb set sender to jhb@FreeBSD.org using -f From: John Baldwin Date: Mon, 21 Aug 2017 17:29:38 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r322760 - stable/11/sys/arm64/arm64 X-SVN-Group: stable-11 X-SVN-Commit-Author: jhb X-SVN-Commit-Paths: stable/11/sys/arm64/arm64 X-SVN-Commit-Revision: 322760 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable-11@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for only the 11-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Aug 2017 17:29:39 -0000 Author: jhb Date: Mon Aug 21 17:29:37 2017 New Revision: 322760 URL: https://svnweb.freebsd.org/changeset/base/322760 Log: MFC 322436: Don't panic for PT_GETFPREGS. Only fetch the VFP state from the CPU if the thread whose registers are being requested is the current thread. If a stopped thread's registers are being fetched by a debugger, the saved state in the PCB is already valid. Modified: stable/11/sys/arm64/arm64/machdep.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/arm64/arm64/machdep.c ============================================================================== --- stable/11/sys/arm64/arm64/machdep.c Mon Aug 21 17:20:31 2017 (r322759) +++ stable/11/sys/arm64/arm64/machdep.c Mon Aug 21 17:29:37 2017 (r322760) @@ -213,7 +213,8 @@ fill_fpregs(struct thread *td, struct fpreg *regs) * If we have just been running VFP instructions we will * need to save the state to memcpy it below. */ - vfp_save_state(td, pcb); + if (td == curthread) + vfp_save_state(td, pcb); memcpy(regs->fp_q, pcb->pcb_vfp, sizeof(regs->fp_q)); regs->fp_cr = pcb->pcb_fpcr;