From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752904AbcHMQi4 (ORCPT ); Sat, 13 Aug 2016 12:38:56 -0400 Received: from mail-yw0-f195.google.com ([209.85.161.195]:35350 "EHLO mail-yw0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752805AbcHMQiv (ORCPT ); Sat, 13 Aug 2016 12:38:51 -0400 From: Brian Gerst To: x86@kernel.org, linux-kernel@vger.kernel.org Cc: Ingo Molnar , "H. Peter Anvin" , Linus Torvalds , Denys Vlasenko , Andy Lutomirski , Borislav Petkov , Thomas Gleixner , Josh Poimboeuf Subject: [PATCH v3 2/7] x86-64, kgdb: clear GDB_PS on 64-bit Date: Sat, 13 Aug 2016 12:38:17 -0400 Message-Id: <1471106302-10159-3-git-send-email-brgerst@gmail.com> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1471106302-10159-1-git-send-email-brgerst@gmail.com> References: <1471106302-10159-1-git-send-email-brgerst@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org switch_to() no longer saves EFLAGS, so it's bogus to look for it on the stack. Set it to zero like 32-bit. Signed-off-by: Brian Gerst --- arch/x86/kernel/kgdb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c index fe649a5..5e3f294 100644 --- a/arch/x86/kernel/kgdb.c +++ b/arch/x86/kernel/kgdb.c @@ -176,7 +176,7 @@ void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p) gdb_regs[GDB_FS] = 0xFFFF; gdb_regs[GDB_GS] = 0xFFFF; #else - gdb_regs32[GDB_PS] = *(unsigned long *)(p->thread.sp + 8); + gdb_regs32[GDB_PS] = 0; gdb_regs32[GDB_CS] = __KERNEL_CS; gdb_regs32[GDB_SS] = __KERNEL_DS; gdb_regs[GDB_R8] = 0; -- 2.5.5