From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753427AbbJAQG0 (ORCPT ); Thu, 1 Oct 2015 12:06:26 -0400 Received: from bh-25.webhostbox.net ([208.91.199.152]:50880 "EHLO bh-25.webhostbox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752284AbbJAQGV (ORCPT ); Thu, 1 Oct 2015 12:06:21 -0400 To: "linux-kernel@vger.kernel.org" Cc: Christoph Lameter , "Kirill A. Shutemov" , Andrew Morton From: Guenter Roeck Subject: linux-next: kernel BUG at mm/slub.c:1447! Message-ID: <560D59F7.4070002@roeck-us.net> Date: Thu, 1 Oct 2015 09:06:15 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Authenticated_sender: linux@roeck-us.net X-OutGoing-Spam-Status: No, score=-1.0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - bh-25.webhostbox.net X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - roeck-us.net X-Get-Message-Sender-Via: bh-25.webhostbox.net: authenticated_id: linux@roeck-us.net X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Seen with next-20151001, running qemu, simulating Opteron_G1 with a non-SMP configuration. On a re-run, I have seen it with the same image, but this time when simulating IvyBridge, so it is not CPU dependent. I did not previously see the problem. Log is at http://server.roeck-us.net:8010/builders/qemu-x86-next/builds/259/steps/qemubuildcommand/logs/stdio I'll try to bisect. The problem is not seen with every boot, so that may take a while. Guenter --- gfp: 2 ------------[ cut here ]------------ invalid opcode: 0000 [#1] PREEMPT Modules linked in: CPU: 0 PID: 121 Comm: udevd Not tainted 4.3.0-rc3-next-20151001-yocto-standard #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.8.2-0-g33fbe13 by qemu-project.org 04/01/2014 task: ced90000 ti: ced8c000 task.ti: ced8c000 EIP: 0060:[] EFLAGS: 00000092 CPU: 0 EIP is at new_slab+0x353/0x360 EAX: 00000006 EBX: 00000000 ECX: 00000001 EDX: 80000001 ESI: cf8019c0 EDI: 00000000 EBP: ced8daa4 ESP: ced8da7c DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 CR0: 8005003b CR2: 080791c0 CR3: 0ed6c000 CR4: 000006d0 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: 00000000 DR7: 00000000 Stack: c19a42cf 00000002 c137542e ced8da90 c137544c ffffffff c144c8a8 00000000 cf8019c0 00000000 ced8db28 c1129ca8 0203128a c144f346 00004e20 cec2e740 c10ee933 0203128a cf8019c0 c181d6c0 c181d460 000001a1 00150015 c0011c00 Call Trace: [] ? __delay+0xe/0x10 [] ? __const_udelay+0x1c/0x20 [] ? ide_execute_command+0x68/0xa0 [] ___slab_alloc.constprop.75+0x248/0x310 [] ? do_rw_taskfile+0x286/0x320 [] ? mempool_alloc_slab+0x13/0x20 [] ? ide_do_rw_disk+0x222/0x320 [] __slab_alloc.isra.72.constprop.74+0x18/0x1f [] kmem_cache_alloc+0x122/0x1c0 [] ? mempool_alloc_slab+0x13/0x20 [] mempool_alloc_slab+0x13/0x20 [] mempool_alloc+0x45/0x170 [] bio_alloc_bioset+0xd2/0x1b0 [] mpage_alloc+0x2f/0xa0 [] ? kmap_atomic_prot+0x59/0xf0 [] do_mpage_readpage+0x4d3/0x7e0 [] ? __alloc_pages_nodemask+0xf8/0x8c0 [] ? blk_queue_bio+0x267/0x2d0 [] ? kmem_cache_alloc+0x7a/0x1c0 [] ? __this_cpu_preempt_check+0xf/0x20 [] mpage_readpage+0x64/0x80 [] ? __ext2_truncate_blocks+0x450/0x450 [] ? lru_cache_add+0xd/0x10 [] ? add_to_page_cache_lru+0x57/0x90 [] ext2_readpage+0x14/0x20 [] do_read_cache_page+0x7b/0x1c0 [] ? ext2_writepages+0x20/0x20 [] read_cache_page+0x24/0x30 [] ext2_get_page.isra.10+0x23/0x250 [] ? __d_rehash+0x43/0x60 [] ? d_rehash+0x4a/0x70 [] ? d_splice_alias+0x7c/0x280 [] ? ext2_iget+0x1fa/0x370 [] ext2_find_entry+0x80/0x200 [] ? d_alloc+0x4a/0x70 [] ? lookup_real+0x1e/0x50 [] ? __d_alloc+0x22/0x120 [] ext2_inode_by_name+0x1b/0x40 [] ext2_lookup+0x42/0xa0 [] ? d_alloc+0x4a/0x70 [] lookup_real+0x1e/0x50 [] path_openat+0x791/0xdc0 [] ? device_show+0x23/0x30 [] ? kernfs_put_open_node.isra.7+0x7e/0xa0 [] ? kvfree+0x45/0x50 [] do_filp_open+0x60/0xb0 [] ? __alloc_fd+0xb7/0x100 [] do_sys_open+0x123/0x220 [] ? fput+0x4c/0x90 [] SyS_open+0x22/0x30 [] syscall_call+0x7/0x7 Code: 8b 46 7c d3 e2 89 d1 89 fa e8 1a ae 00 00 85 c0 0f 85 dc fe ff ff e9 34 fd ff ff 89 44 24 04 c7 04 24 cf 42 9a c1 e8 b9 1f fc ff <0f> 0b 8d 74 26 00 8d bc 27 00 00 00 00 55 89 e5 57 56 53 83 ec EIP: [] new_slab+0x353/0x360 SS:ESP 0068:ced8da7c ---[ end trace 7503d0e5896d8e13 ]--- Kernel panic - not syncing: Fatal exception Kernel Offset: disabled ---[ end Kernel panic - not syncing: Fatal exception qemu: terminating on signal 15 from pid 18056