From owner-cvs-src-old@FreeBSD.ORG Tue Oct 27 10:48:32 2009 Return-Path: Delivered-To: cvs-src-old@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 82A241065679 for ; Tue, 27 Oct 2009 10:48:32 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repoman.freebsd.org (repoman.freebsd.org [IPv6:2001:4f8:fff6::29]) by mx1.freebsd.org (Postfix) with ESMTP id 6DD2A8FC1F for ; Tue, 27 Oct 2009 10:48:32 +0000 (UTC) Received: from repoman.freebsd.org (localhost [127.0.0.1]) by repoman.freebsd.org (8.14.3/8.14.3) with ESMTP id n9RAmW7O077708 for ; Tue, 27 Oct 2009 10:48:32 GMT (envelope-from kib@repoman.freebsd.org) Received: (from svn2cvs@localhost) by repoman.freebsd.org (8.14.3/8.14.3/Submit) id n9RAmWA5077707 for cvs-src-old@freebsd.org; Tue, 27 Oct 2009 10:48:32 GMT (envelope-from kib@repoman.freebsd.org) Message-Id: <200910271048.n9RAmWA5077707@repoman.freebsd.org> X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to kib@repoman.freebsd.org using -f From: Konstantin Belousov Date: Tue, 27 Oct 2009 10:47:58 +0000 (UTC) To: cvs-src-old@freebsd.org X-FreeBSD-CVS-Branch: HEAD Subject: cvs commit: src/sys/amd64/amd64 machdep.c src/sys/amd64/ia32 ia32_signal.c src/sys/amd64/linux32 linux32_sysvec.c src/sys/arm/arm machdep.c src/sys/compat/freebsd32 freebsd32_misc.c src/sys/i386/i386 machdep.c src/sys/i386/linux ... X-BeenThere: cvs-src-old@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: **OBSOLETE** CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Oct 2009 10:48:32 -0000 kib 2009-10-27 10:47:58 UTC FreeBSD src repository Modified files: sys/amd64/amd64 machdep.c sys/amd64/ia32 ia32_signal.c sys/amd64/linux32 linux32_sysvec.c sys/arm/arm machdep.c sys/compat/freebsd32 freebsd32_misc.c sys/i386/i386 machdep.c sys/i386/linux linux_sysvec.c sys/ia64/ia64 machdep.c sys/kern kern_context.c kern_sig.c sys/mips/mips pm_machdep.c sys/pc98/pc98 machdep.c sys/powerpc/aim machdep.c sys/powerpc/booke machdep.c sys/sparc64/sparc64 machdep.c sys/sun4v/sun4v machdep.c Log: SVN rev 198507 on 2009-10-27 10:47:58Z by kib In r197963, a race with thread being selected for signal delivery while in kernel mode, and later changing signal mask to block the signal, was fixed for sigprocmask(2) and ptread_exit(3). The same race exists for sigreturn(2), setcontext(2) and swapcontext(2) syscalls. Use kern_sigprocmask() instead of direct manipulation of td_sigmask to reschedule newly blocked signals, closing the race. Reviewed by: davidxu Tested by: pho MFC after: 1 month Revision Changes Path 1.711 +2 -6 src/sys/amd64/amd64/machdep.c 1.24 +8 -22 src/sys/amd64/ia32/ia32_signal.c 1.54 +6 -12 src/sys/amd64/linux32/linux32_sysvec.c 1.34 +1 -6 src/sys/arm/arm/machdep.c 1.96 +7 -16 src/sys/compat/freebsd32/freebsd32_misc.c 1.693 +6 -21 src/sys/i386/i386/machdep.c 1.169 +6 -12 src/sys/i386/linux/linux_sysvec.c 1.247 +1 -7 src/sys/ia64/ia64/machdep.c 1.10 +4 -8 src/sys/kern/kern_context.c 1.379 +22 -21 src/sys/kern/kern_sig.c 1.3 +4 -9 src/sys/mips/mips/pm_machdep.c 1.413 +6 -21 src/sys/pc98/pc98/machdep.c 1.130 +1 -7 src/sys/powerpc/aim/machdep.c 1.19 +1 -7 src/sys/powerpc/booke/machdep.c 1.156 +1 -5 src/sys/sparc64/sparc64/machdep.c 1.22 +1 -5 src/sys/sun4v/sun4v/machdep.c