From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nicolas Jungers Subject: bug in kernel 3.2 (up to date Debian wheezy) Date: Thu, 27 Jun 2013 19:22:10 +0200 Message-ID: <51CC74C2.6010608@jungers.net> Reply-To: Nicolas Jungers Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Assembling a raid 10 array on Debian Wheezy I got the following messages: #----------- uname -a Linux ha1 3.2.0-4-amd64 #1 SMP Debian 3.2.46-1 x86_64 GNU/Linux mdadm --version mdadm - v3.2.5 - 18th May 2012 #----------- The operation was: mdadm -C /dev/md0 -l10 -pf2 -n4 -x1 --assume-clean -b internal /dev/sd[abcde]1 I got the messages in the console: mdadm: /dev/sda1 appears to be part of a raid array: level=raid10 devices=4 ctime=Thu Jun 27 19:02:41 2013 mdadm: /dev/sdb1 appears to be part of a raid array: level=raid10 devices=4 ctime=Thu Jun 27 19:02:41 2013 mdadm: /dev/sdc1 appears to be part of a raid array: level=raid10 devices=4 ctime=Thu Jun 27 19:02:41 2013 mdadm: /dev/sdd1 appears to be part of a raid array: level=raid10 devices=4 ctime=Thu Jun 27 19:02:41 2013 mdadm: /dev/sde1 appears to be part of a raid array: level=raid10 devices=4 ctime=Thu Jun 27 19:02:41 2013 Continue creating array? yes mdadm: Defaulting to version 1.2 metadata Segmentation fault kern.log contains: Jun 27 19:05:10 ha1 kernel: [89178.413826] md: bind Jun 27 19:05:10 ha1 kernel: [89178.414011] md: bind Jun 27 19:05:10 ha1 kernel: [89178.414267] md: bind Jun 27 19:05:10 ha1 kernel: [89178.414538] md: bind Jun 27 19:05:10 ha1 kernel: [89178.414806] md: bind Jun 27 19:05:10 ha1 kernel: [89178.418512] bio: create slab at 1 Jun 27 19:05:10 ha1 kernel: [89178.418778] md/raid10:md0: active with 4 out of 4 devices Jun 27 19:05:10 ha1 kernel: [89178.419042] ------------[ cut here ]------------ Jun 27 19:05:10 ha1 kernel: [89178.419060] kernel BUG at /build/linux-s5x2oE/linux-3.2.46/drivers/md/bitmap.c:1769! Jun 27 19:05:10 ha1 kernel: [89178.419075] invalid opcode: 0000 [#1] SMP Jun 27 19:05:10 ha1 kernel: [89178.419088] CPU 1 Jun 27 19:05:10 ha1 kernel: [89178.419094] Modules linked in: raid10 loop edac_mce_amd edac_core sp5100_tco radeon ttm drm_kms_helper drm power_supply i2c_algo_bit powernow_k8 i2c_piix4 snd_hda_codec_realtek snd_hda_intel snd_hda_codec psmouse joydev serio_raw pcspkr evdev mperf k10temp i2c_core snd_hwdep snd_pcm snd_page_alloc snd_timer snd soundcore shpchp button processor wmi thermal_sys ext4 crc16 jbd2 mbcache md_mod usb_storage sg sd_mod crc_t10dif ata_generic usbhid hid ahci libahci pata_atiixp ohci_hcd e1000e r8169 mii ehci_hcd libata scsi_mod usbcore usb_common [last unloaded: scsi_wait_scan] Jun 27 19:05:10 ha1 kernel: [89178.419272] Jun 27 19:05:10 ha1 kernel: [89178.419281] Pid: 2832, comm: mdadm Not tainted 3.2.0-4-amd64 #1 Debian 3.2.46-1 To Be Filled By O.E.M. To Be Filled By O.E.M./790GX Pro Jun 27 19:05:10 ha1 kernel: [89178.419308] RIP: 0010:[] [] bitmap_create+0x50b/0x5bc [md_mod] Jun 27 19:05:10 ha1 kernel: [89178.419343] RSP: 0018:ffff880213c61c88 EFLAGS: 00010257 Jun 27 19:05:10 ha1 kernel: [89178.419354] RAX: 0000000000000000 RBX: ffff880214143580 RCX: 0000000000000011 Jun 27 19:05:10 ha1 kernel: [89178.419367] RDX: 0000000000000000 RSI: ffff8802167f0114 RDI: ffff880215a4a008 Jun 27 19:05:10 ha1 kernel: [89178.419380] RBP: ffff8802167f0000 R08: ffff8802167f0000 R09: ffffffff8168f0e0 Jun 27 19:05:10 ha1 kernel: [89178.419396] R10: 0000000000000200 R11: ffffea00074bc030 R12: 0000000000000000 Jun 27 19:05:10 ha1 kernel: [89178.419411] R13: 0000000000000000 R14: 00000000000004e2 R15: 0000000000000000 Jun 27 19:05:10 ha1 kernel: [89178.419428] FS: 00007fe730148700(0000) GS:ffff88021fc40000(0000) knlGS:0000000000000000 Jun 27 19:05:10 ha1 kernel: [89178.419448] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jun 27 19:05:10 ha1 kernel: [89178.419461] CR2: 00007f2dc9a0a670 CR3: 0000000215a02000 CR4: 00000000000006e0 Jun 27 19:05:10 ha1 kernel: [89178.419477] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jun 27 19:05:10 ha1 kernel: [89178.419493] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jun 27 19:05:10 ha1 kernel: [89178.419509] Process mdadm (pid: 2832, threadinfo ffff880213c60000, task ffff880213e571e0) Jun 27 19:05:10 ha1 kernel: [89178.419527] Stack: Jun 27 19:05:10 ha1 kernel: [89178.419535] ffff8802167f0000 ffff880214143380 ffff8802167f0000 0000000000000000 Jun 27 19:05:10 ha1 kernel: [89178.419561] ffff8802167f0018 ffff8802167f0000 0000000000000000 ffff8802167f0018 Jun 27 19:05:10 ha1 kernel: [89178.419585] ffff8802167f0018 ffffffffa00e0a42 ffff8802159b7000 ffffffffa00dac32 Jun 27 19:05:10 ha1 kernel: [89178.419610] Call Trace: Jun 27 19:05:10 ha1 kernel: [89178.419634] [] ? md_run+0x596/0x771 [md_mod] Jun 27 19:05:10 ha1 kernel: [89178.419659] [] ? add_new_disk+0xef/0x45f [md_mod] Jun 27 19:05:10 ha1 kernel: [89178.419679] [] ? unmap_vmas+0x5fa/0x6ca Jun 27 19:05:10 ha1 kernel: [89178.419703] [] ? do_md_run+0xb/0x7b [md_mod] Jun 27 19:05:10 ha1 kernel: [89178.419728] [] ? md_ioctl+0xc11/0xe93 [md_mod] Jun 27 19:05:10 ha1 kernel: [89178.419746] [] ? free_pgtables+0xa5/0xbd Jun 27 19:05:10 ha1 kernel: [89178.419764] [] ? blkdev_ioctl+0x5e6/0x5fb Jun 27 19:05:10 ha1 kernel: [89178.419782] [] ? block_ioctl+0x38/0x3c Jun 27 19:05:10 ha1 kernel: [89178.419799] [] ? bdgrab+0x12/0x12 Jun 27 19:05:10 ha1 kernel: [89178.419816] [] ? do_vfs_ioctl+0x459/0x49a Jun 27 19:05:10 ha1 kernel: [89178.419833] [] ? remove_vma+0x64/0x6b Jun 27 19:05:10 ha1 kernel: [89178.419850] [] ? do_munmap+0x2da/0x2f3 Jun 27 19:05:10 ha1 kernel: [89178.419867] [] ? sys_ioctl+0x4b/0x72 Jun 27 19:05:10 ha1 kernel: [89178.419884] [] ? math_state_restore+0x4b/0x55 Jun 27 19:05:10 ha1 kernel: [89178.419901] [] ? system_call_fastpath+0x16/0x1b Jun 27 19:05:10 ha1 kernel: [89178.419915] Code: 48 0f bc c9 48 89 4b 20 48 8b 80 48 03 00 00 83 e9 09 48 c1 e8 09 48 8d 44 02 ff 48 d3 e8 4c 8d a0 ff 07 00 00 49 c1 ec 0b 75 02 <0f> 0b 4c 89 e7 48 89 43 28 4c 89 63 08 48 c1 e7 04 4c 89 63 10 Jun 27 19:05:10 ha1 kernel: [89178.420064] RIP [] bitmap_create+0x50b/0x5bc [md_mod] Jun 27 19:05:10 ha1 kernel: [89178.420094] RSP Jun 27 19:05:10 ha1 kernel: [89178.420375] ---[ end trace d9689cf7d2b41c37 ]--- Is it a known bug? I plan to migrate to kernel 3.9 anyway. Regards, N.