From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752079AbdJaIgw (ORCPT ); Tue, 31 Oct 2017 04:36:52 -0400 Received: from bombadil.infradead.org ([65.50.211.133]:33121 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750872AbdJaIgu (ORCPT ); Tue, 31 Oct 2017 04:36:50 -0400 Date: Tue, 31 Oct 2017 09:36:44 +0100 From: Peter Zijlstra To: syzbot Cc: dvhart@infradead.org, linux-kernel@vger.kernel.org, mingo@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de Subject: Re: WARNING in get_pi_state Message-ID: <20171031083644.2svprv6ax7ask5lg@hirez.programming.kicks-ass.net> References: <001a113a67502e70f4055cc8dc92@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <001a113a67502e70f4055cc8dc92@google.com> User-Agent: NeoMutt/20170609 (1.8.3) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Oct 30, 2017 at 12:44:00PM -0700, syzbot wrote: > WARNING: CPU: 1 PID: 24353 at kernel/futex.c:818 get_pi_state+0x15b/0x190 > kernel/futex.c:818 > exit_pi_state_list+0x556/0x7a0 kernel/futex.c:932 > mm_release+0x46d/0x590 kernel/fork.c:1191 > exit_mm kernel/exit.c:499 [inline] > do_exit+0x481/0x1b00 kernel/exit.c:852 > SYSC_exit kernel/exit.c:937 [inline] > SyS_exit+0x22/0x30 kernel/exit.c:935 > entry_SYSCALL_64_fastpath+0x1f/0xbe Argh, I definitely messed that up. Let me have a prod..