Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756120AbaFYJb4 (ORCPT ); Wed, 25 Jun 2014 05:31:56 -0400 Received: from mga01.intel.com ([192.55.52.88]:29511 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751365AbaFYJbw (ORCPT ); Wed, 25 Jun 2014 05:31:52 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,544,1400050800"; d="scan'208";a="552994443" Date: Wed, 25 Jun 2014 17:31:46 +0800 From: Fengguang Wu To: Linux Memory Management List Cc: LKML , Andrew Morton , Stephen Rothwell , Jet Chen , Yuanhan Liu , LKP , "Su, Tao" Subject: [migration] kernel BUG at kernel/irq_work.c:175! Message-ID: <20140625093146.GC27280@localhost> 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 Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master commit 68c90b2c635f18ad51ae7440162f6c082ea1288d Merge: f08af6f ec11f8c Author: Stephen Rothwell AuthorDate: Mon Jun 23 14:12:48 2014 +1000 Merge branch 'akpm-current/current' +---------------------------------+------------+------------+------------+---------------+ | | f08af6fa87 | ec11f8c81f | 68c90b2c63 | next-20140623 | +---------------------------------+------------+------------+------------+---------------+ | boot_successes | 60 | 60 | 0 | 0 | | boot_failures | 0 | 0 | 20 | 13 | | kernel_BUG_at_kernel/irq_work.c | 0 | 0 | 20 | 13 | | invalid_opcode | 0 | 0 | 20 | 13 | | RIP:irq_work_run | 0 | 0 | 20 | 13 | | backtrace:smpboot_thread_fn | 0 | 0 | 20 | 13 | +---------------------------------+------------+------------+------------+---------------+ [ 2.194744] EDD information not available. [ 2.195290] Unregister pv shared memory for cpu 0 [ 2.206025] ------------[ cut here ]------------ [ 2.206025] kernel BUG at kernel/irq_work.c:175! [ 2.206025] invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC [ 2.206025] CPU: 0 PID: 9 Comm: migration/0 Not tainted 3.16.0-rc2-02039-g68c90b2 #1 [ 2.206025] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.206025] task: ffff88001219a7e0 ti: ffff8800121a4000 task.ti: ffff8800121a4000 [ 2.206025] RIP: 0010:[] [] irq_work_run+0xf/0x1c [ 2.206025] RSP: 0000:ffff8800121a7c48 EFLAGS: 00010046 [ 2.206025] RAX: 0000000080000001 RBX: 0000000000000000 RCX: 0000000000000005 [ 2.206025] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000 [ 2.206025] RBP: ffff8800121a7c68 R08: 0000000000000002 R09: 0000000000000001 [ 2.206025] R10: ffffffff810e2a10 R11: ffffffff810b9de3 R12: ffff880012412340 [ 2.206025] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff81c83e50 [ 2.206025] FS: 0000000000000000(0000) GS:ffff880012400000(0000) knlGS:0000000000000000 [ 2.206025] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 2.206025] CR2: 0000000000000000 CR3: 0000000001c0c000 CR4: 00000000000006b0 [ 2.206025] Stack: [ 2.206025] ffffffff810e87e0 ffff880012412380 00000000fffffff0 ffffffff81c81ba0 [ 2.206025] ffff8800121a7c88 ffffffff810e88f0 0000000000000001 00000000fffffff0 [ 2.206025] ffff8800121a7cd0 ffffffff810b6e23 0000000000000000 0000000000000008 [ 2.206025] Call Trace: [ 2.206025] [] ? flush_smp_call_function_queue+0xa4/0x107 [ 2.206025] [] hotplug_cfd+0xad/0xbb [ 2.206025] [] notifier_call_chain+0x68/0x8e [ 2.206025] [] __raw_notifier_call_chain+0x9/0xb [ 2.206025] [] __cpu_notify+0x1b/0x32 [ 2.206025] [] cpu_notify+0xe/0x10 [ 2.206025] [] take_cpu_down+0x22/0x35 [ 2.206025] [] multi_cpu_stop+0x8c/0xe2 [ 2.206025] [] ? cpu_stopper_thread+0x126/0x126 [ 2.206025] [] cpu_stopper_thread+0x8d/0x126 [ 2.206025] [] ? lock_acquire+0x94/0x9d [ 2.206025] [] ? _raw_spin_unlock_irqrestore+0x40/0x55 [ 2.206025] [] ? trace_hardirqs_on_caller+0x171/0x18d [ 2.206025] [] ? _raw_spin_unlock_irqrestore+0x48/0x55 [ 2.206025] [] smpboot_thread_fn+0x182/0x1a0 [ 2.206025] [] ? in_egroup_p+0x2e/0x2e [ 2.206025] [] kthread+0xcd/0xd5 [ 2.206025] [] ? __kthread_parkme+0x5c/0x5c [ 2.206025] [] ret_from_fork+0x7c/0xb0 [ 2.206025] [] ? __kthread_parkme+0x5c/0x5c [ 2.206025] Code: 48 c7 c7 65 cd b0 81 e8 43 20 fa ff c6 05 50 e1 c9 00 01 eb 02 31 db 88 d8 5b 5d c3 65 8b 04 25 10 b8 00 00 a9 00 00 0f 00 75 02 <0f> 0b 55 48 89 e5 e8 b5 fd ff ff 5d c3 55 48 89 e5 53 48 89 fb [ 2.206025] RIP [] irq_work_run+0xf/0x1c [ 2.206025] RSP [ 2.206025] ---[ end trace f7f1564c3a1f35d0 ]--- [ 2.206025] note: migration/0[9] exited with preempt_count 1 git bisect start 58ae500a03a6bf68eee323c342431bfdd3f460b6 f08af6fa87ea33262fe2fe5167119fb55ad9dd2c -- git bisect bad 68c90b2c635f18ad51ae7440162f6c082ea1288d # 14:19 0- 20 Merge branch 'akpm-current/current' git bisect good 6b11d02e25c79a8961983a966b7fafcdc36c7a91 # 14:23 20+ 0 slab: do not keep free objects/slabs on dead memcg caches git bisect good 11709212b3a5479fcc63dda3160f4f4b0251f914 # 14:27 20+ 0 mm/util.c: add kstrimdup() git bisect good 6af20930dcfcd13270de4f29f3830312f3c36a17 # 14:33 20+ 0 fork: reset mm->pinned_vm git bisect good 8e7c32fb574ec1b49fd0e451cb25febf51430dd9 # 14:38 20+ 0 fs/qnx6: use pr_fmt and __func__ in logging git bisect good 6873969c750b85734bc7d06be3c51ad381b3c85a # 14:41 20+ 0 shm: remove unneeded extern for function git bisect good 2b9ed79abc340e15bc9652048d2e8d8a283bd8a1 # 14:48 20+ 0 um: use asm-generic/scatterlist.h git bisect good ec11f8c81fbc76534c1374e29bdf36f085ed859a # 15:12 20+ 0 lib/scatterlist: clean up useless architecture versions of scatterlist.h # first bad commit: [68c90b2c635f18ad51ae7440162f6c082ea1288d] Merge branch 'akpm-current/current' git bisect good f08af6fa87ea33262fe2fe5167119fb55ad9dd2c # 15:14 60+ 0 Merge branch 'rd-docs/master' git bisect good ec11f8c81fbc76534c1374e29bdf36f085ed859a # 15:19 60+ 0 lib/scatterlist: clean up useless architecture versions of scatterlist.h git bisect bad 58ae500a03a6bf68eee323c342431bfdd3f460b6 # 15:19 0- 13 Add linux-next specific files for 20140623 git bisect good a497c3ba1d97fc69c1e78e7b96435ba8c2cb42ee # 15:25 60+ 0 Linux 3.16-rc2 git bisect bad 58ae500a03a6bf68eee323c342431bfdd3f460b6 # 15:25 0- 13 Add linux-next specific files for 20140623 This script may reproduce the error. ----------------------------------------------------------------------------- #!/bin/bash kernel=$1 initrd=quantal-core-x86_64.cgz wget --no-clobber https://github.com/fengguang/reproduce-kernel-bug/blob/master/initrd/$initrd kvm=( qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel $kernel -initrd $initrd -smp 2 -m 256M -net nic,vlan=0,macaddr=00:00:00:00:00:00,model=virtio -net user,vlan=0 -net nic,vlan=1,model=e1000 -net user,vlan=1 -boot order=nc -no-reboot -watchdog i6300esb -serial stdio -display none -monitor null ) append=( debug sched_debug apic=debug ignore_loglevel sysrq_always_enabled panic=10 prompt_ramdisk=0 earlyprintk=ttyS0,115200 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw ) "${kvm[@]}" --append "${append[*]}" ----------------------------------------------------------------------------- Thanks, Fengguang -- 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/