Comment # 1
on bug 960628
from Jared Hudson
[ 4.892835] md: bind<sdb1>
[ 4.894990] md: bind<sda1>
[ 4.897866] md: bind<sdc1>
[ 4.903647] md: raid10 personality registered for level 10
[ 4.904423] md/raid10:md127: not clean -- starting background reconstruction
[ 4.904426] md/raid10:md127: active with 3 out of 3 devices
[ 4.904752] created bitmap (33 pages) for device md127
[ 4.907587] md127: bitmap initialized from disk: read 3 pages, set 66581 of
67056 bits
[ 4.945616] md127: detected capacity change from 0 to 4499999784960
[ 4.945715] md: resync of RAID array md127
[ 4.945718] md: minimum _guaranteed_ speed: 1000 KB/sec/disk.
[ 4.945719] md: using maximum available idle IO bandwidth (but not more than
200000 KB/sec) for resync.
[ 4.945723] md: using 128k window, over a total of 4394531040k.
[ 7.691655] BUG: unable to handle kernel paging request at 0000000000044000
[ 7.691684] IP: [<ffffffff8134154e>] bio_copy_data+0xbe/0x410
[ 7.691704] PGD 0
[ 7.691711] Oops: 0000 [#1] PREEMPT SMP
[ 7.691728] Modules linked in: raid10 md_mod crct10dif_pclmul crc32_pclmul
ppdev aesni_intel aes_x86_64 snd_hda_codec_generic parport_pc lrw qxl gf128mul
glue_helper ablk_helper ttm drm_kms_helper drm fb_sys_fops syscopyarea
sysfillrect virtio_balloon serio_raw pcspkr sysimgblt acpi_cpufreq cryptd
joydev i2c_piix4 parport 8250_fintek snd_hda_intel snd_hda_codec snd_hda_core
snd_hwdep snd_pcm snd_timer snd soundcore button processor btrfs xor raid6_pq
hid_generic usbhid sr_mod cdrom ata_generic virtio_rng virtio_console
virtio_net ata_piix ehci_pci uhci_hcd crc32c_intel ehci_hcd virtio_pci usbcore
virtio_ring virtio usb_common floppy dm_mod sg
[ 7.691941] CPU: 1 PID: 824 Comm: md127_raid10 Not tainted 4.3.3-3-default
#1
[ 7.691959] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS by
qemu-project.org 04/01/2014
[ 7.691982] task: ffff8800bb02c0c0 ti: ffff8800bbb78000 task.ti:
ffff8800bbb78000
[ 7.692004] RIP: 0010:[<ffffffff8134154e>] [<ffffffff8134154e>]
bio_copy_data+0xbe/0x410
[ 7.692036] RSP: 0018:ffff8800bbb7bce8 EFLAGS: 00010286
[ 7.692050] RAX: 0000000000044000 RBX: ffff8800ab9e7e88 RCX:
0000000000004000
[ 7.692067] RDX: 0000000000001000 RSI: 0000000000000000 RDI:
0000000000004000
[ 7.692084] RBP: ffff8800bbb7bd50 R08: 0000000000000000 R09:
ffff8800bb02c0c0
[ 7.692101] R10: ffff8800ab9e7e00 R11: ffff8800ab9e7e88 R12:
0000000000008000
[ 7.692118] R13: 0000000000000000 R14: 0000000000000000 R15:
00000000aba6c000
[ 7.692136] FS: 0000000000000000(0000) GS:ffff880237240000(0000)
knlGS:0000000000000000
[ 7.692156] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7.692170] CR2: 0000000000044000 CR3: 0000000001e0f000 CR4:
00000000000406e0
[ 7.692190] Stack:
[ 7.692196] ffffffff8134b1d1 ffff8800bb02c0c0 0000000000004000
0000000000000000
[ 7.692218] ffff8800ab9e7e00 ffff8800ab9e7e00 0000000000004000
ffff88021c311600
[ 7.692240] ffff880237186bd8 0000000000000000 ffff880237186b80
ffff8800ab9e7e00
[ 7.692275] Call Trace:
[ 7.692292] [<ffffffffa0524b50>] raid10d+0xc90/0x11d0 [raid10]
[ 7.692314] DWARF2 unwinder stuck at raid10d+0xc90/0x11d0 [raid10]
[ 7.692334] Leftover inexact backtrace:
[ 7.692352] [<ffffffffa04f2212>] md_thread+0x112/0x120 [md_mod]
[ 7.692369] [<ffffffffa04f2212>] ? md_thread+0x112/0x120 [md_mod]
[ 7.692386] [<ffffffff810bbb20>] ? wake_atomic_t_function+0x60/0x60
[ 7.692403] [<ffffffffa04f2100>] ? find_pers+0x70/0x70 [md_mod]
[ 7.692419] [<ffffffff81098f49>] kthread+0xc9/0xe0
[ 7.692432] [<ffffffff81098e80>] ? kthread_worker_fn+0x170/0x170
[ 7.692449] [<ffffffff81694d0f>] ret_from_fork+0x3f/0x70
[ 7.692463] [<ffffffff81098e80>] ? kthread_worker_fn+0x170/0x170
[ 7.692478] Code: 75 d0 44 8b 45 cc 4c 89 55 b8 48 89 c8 48 89 4d a8 48 c1
e0 04 48 03 46 78 4c 89 c3 48 c1 e3 04 49 03 5a 78 44 89 f6 4c 89 45 b0 <4c> 8b
18 8b 78 0c 8b 40 08 48 8b 13 03 73 0c 8b 5b 08 44 01 ff
[ 7.692588] RIP [<ffffffff8134154e>] bio_copy_data+0xbe/0x410
[ 7.692604] RSP <ffff8800bbb7bce8>
[ 7.692614] CR2: 0000000000044000
[ 7.692818] ---[ end trace 672c2aa27ae0012a ]---
[ 7.693008] ------------[ cut here ]------------
[ 7.693200] WARNING: CPU: 1 PID: 824 at ../kernel/exit.c:661
do_exit+0x50/0xb00()
[ 7.693425] Modules linked in: raid10 md_mod crct10dif_pclmul crc32_pclmul
ppdev aesni_intel aes_x86_64 snd_hda_codec_generic parport_pc lrw qxl gf128mul
glue_helper ablk_helper ttm drm_kms_helper drm fb_sys_fops syscopyarea
sysfillrect virtio_balloon serio_raw pcspkr sysimgblt acpi_cpufreq cryptd
joydev i2c_piix4 parport 8250_fintek snd_hda_intel snd_hda_codec snd_hda_core
snd_hwdep snd_pcm snd_timer snd soundcore button processor btrfs xor raid6_pq
hid_generic usbhid sr_mod cdrom ata_generic virtio_rng virtio_console
virtio_net ata_piix ehci_pci uhci_hcd crc32c_intel ehci_hcd virtio_pci usbcore
virtio_ring virtio usb_common floppy dm_mod sg
[ 7.694944] CPU: 1 PID: 824 Comm: md127_raid10 Tainted: G D
4.3.3-3-default #1
[ 7.695149] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS by
qemu-project.org 04/01/2014
[ 7.695545] ffffffff81a4faf6 ffff8800bbb7b9f8 ffffffff81376259
0000000000000000
[ 7.695615] ffff8800bbb7ba30 ffffffff8107afc2 ffff8800bb02c0c0
0000000000000009
[ 7.695615] ffff8800bbb7bc38 0000000000000046 0000000000044000
ffff8800bbb7ba40
[ 7.695615] Call Trace:
[ 7.695615] [<ffffffff8101a385>] try_stack_unwind+0x175/0x190
[ 7.695615] [<ffffffff810191d9>] dump_trace+0x69/0x3a0
[ 7.695615] [<ffffffff8101a3eb>] show_trace_log_lvl+0x4b/0x60
[ 7.695615] [<ffffffff8101961c>] show_stack_log_lvl+0x10c/0x180
[ 7.695615] [<ffffffff8101a485>] show_stack+0x25/0x50
[ 7.695615] [<ffffffff81376259>] dump_stack+0x4b/0x72
[ 7.695615] [<ffffffff8107afc2>] warn_slowpath_common+0x82/0xc0
[ 7.695615] [<ffffffff8107b0ba>] warn_slowpath_null+0x1a/0x20
[ 7.695615] [<ffffffff8107d990>] do_exit+0x50/0xb00
[ 7.695615] [<ffffffff81019df1>] oops_end+0xa1/0xd0
[ 7.695615] [<ffffffff81064bfb>] no_context+0x10b/0x360
[ 7.695615] [<ffffffff81064ed0>] __bad_area_nosemaphore+0x80/0x1f0
[ 7.695615] [<ffffffff81065053>] bad_area_nosemaphore+0x13/0x20
[ 7.695615] [<ffffffff81065319>] __do_page_fault+0xb9/0x410
[ 7.695615] [<ffffffff810656d7>] trace_do_page_fault+0x37/0xc0
[ 7.695615] [<ffffffff8105e269>] do_async_page_fault+0x19/0x70
[ 7.695615] [<ffffffff81696c38>] async_page_fault+0x28/0x30
[ 7.695615] DWARF2 unwinder stuck at async_page_fault+0x28/0x30
[ 7.695615] Leftover inexact backtrace:
[ 7.695615] [<ffffffff8134154e>] ? bio_copy_data+0xbe/0x410
[ 7.695615] [<ffffffff8134b1d1>] ? blk_queue_bio+0x151/0x350
[ 7.695615] [<ffffffffa0524b50>] raid10d+0xc90/0x11d0 [raid10]
[ 7.695615] [<ffffffffa04f2212>] md_thread+0x112/0x120 [md_mod]
[ 7.695615] [<ffffffffa04f2212>] ? md_thread+0x112/0x120 [md_mod]
[ 7.695615] [<ffffffff810bbb20>] ? wake_atomic_t_function+0x60/0x60
[ 7.695615] [<ffffffffa04f2100>] ? find_pers+0x70/0x70 [md_mod]
[ 7.695615] [<ffffffff81098f49>] kthread+0xc9/0xe0
[ 7.695615] [<ffffffff81098e80>] ? kthread_worker_fn+0x170/0x170
[ 7.695615] [<ffffffff81694d0f>] ret_from_fork+0x3f/0x70
[ 7.695615] [<ffffffff81098e80>] ? kthread_worker_fn+0x170/0x170
[ 7.695615] ---[ end trace 672c2aa27ae0012b ]---