Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754503AbXFGJyq (ORCPT ); Thu, 7 Jun 2007 05:54:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751842AbXFGJyj (ORCPT ); Thu, 7 Jun 2007 05:54:39 -0400 Received: from mx1.redhat.com ([66.187.233.31]:36384 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751584AbXFGJyi (ORCPT ); Thu, 7 Jun 2007 05:54:38 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit From: Roland McGrath To: Satoru Takeuchi X-Fcc: ~/Mail/linus Cc: Linux Kernel , Linus Torvalds , Andrew Morton , Oleg Nesterov Subject: Re: [BUG] 2.6.22-rc4: wait4() waiting for SIGSTOP may not return if the target process is ptraced In-Reply-To: Satoru Takeuchi's message of Thursday, 7 June 2007 18:42:52 +0900 <87vee09k2r.wl%takeuchi_satoru@jp.fujitsu.com> X-Shopping-List: (1) Intelligent battalion perversions (2) Concomitant swindlers (3) Pulmonary laxative sleeves (4) Hypothetical suspicious concussion dividers (5) Skid-proof turkeys Message-Id: <20070607095432.559744D0597@magilla.localdomain> Date: Thu, 7 Jun 2007 02:54:32 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 393 Lines: 11 The bug is in strace (and is being fixed). It needs to use tgkill instead of kill to send that SIGSTOP to the right thread only. Thanks, Roland - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/