Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758137AbaD2PRc (ORCPT ); Tue, 29 Apr 2014 11:17:32 -0400 Received: from mx1.redhat.com ([209.132.183.28]:30610 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757967AbaD2PRa (ORCPT ); Tue, 29 Apr 2014 11:17:30 -0400 Date: Tue, 29 Apr 2014 11:16:55 -0400 From: Dave Jones To: Linux Kernel Cc: peterz@infradead.org, davidlohr@hp.com, Linus Torvalds Subject: [3.15-rc3] rtmutex-debug assertion. Message-ID: <20140429151655.GA14277@redhat.com> Mail-Followup-To: Dave Jones , Linux Kernel , peterz@infradead.org, davidlohr@hp.com, Linus Torvalds MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Just hit this while fuzzing the futex() syscall. WARNING: CPU: 2 PID: 6202 at kernel/locking/rtmutex-debug.c:151 debug_rt_mutex_proxy_unlock+0x4e/0x60() DEBUG_LOCKS_WARN_ON(!rt_mutex_owner(lock)) Modules linked in: tun fuse ipt_ULOG nfnetlink bnep can_bcm scsi_transport_iscsi nfc caif_socket caif af_802154 ieee802154 phonet af_rxrpc can_raw can pppoe pppox ppp_generic slhc irda crc_ccitt rds rose x25 atm netrom appletalk ipx p8023 psnap p8022 llc ax25 cfg80211 coretemp hwmon x86_pkg_temp_thermal kvm_intel kvm xfs libcrc32c btusb bluetooth snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm e1000e crct10dif_pclmul crc32c_intel ghash_clmulni_intel snd_timer snd microcode serio_raw pcspkr usb_debug 6lowpan_iphc rfkill shpchp ptp pps_core soundcore CPU: 2 PID: 6202 Comm: trinity-c63 Not tainted 3.15.0-rc3+ #201 0000000000000009 00000000de725d52 ffff880099befbd8 ffffffff92746dad ffff880099befc20 ffff880099befc10 ffffffff9206d46d ffff88020951c010 ffff88009d718000 ffff88009d718000 ffffc90011408680 ffffc90011408688 Call Trace: [] dump_stack+0x4e/0x7a [] warn_slowpath_common+0x7d/0xa0 [] warn_slowpath_fmt+0x5c/0x80 [] debug_rt_mutex_proxy_unlock+0x4e/0x60 [] rt_mutex_proxy_unlock+0x17/0x40 [] free_pi_state+0x6a/0xb0 [] unqueue_me_pi+0x20/0x40 [] futex_lock_pi.isra.18+0x262/0x3f0 [] ? hrtimer_get_res+0x50/0x50 [] do_futex+0x2ec/0xb60 [] ? debug_smp_processor_id+0x17/0x20 [] ? put_lock_stats.isra.23+0xe/0x30 [] ? lock_release_holdtime.part.24+0xe6/0x160 [] ? get_parent_ip+0xd/0x50 [] ? preempt_count_sub+0x6b/0xf0 [] ? _raw_spin_unlock+0x31/0x50 [] SyS_futex+0x80/0x180 [] tracesys+0xdd/0xe2 -- 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/