[  677.270512] divide error: 0000 [#1] PREEMPT SMP 
[  677.270536] CPU 0 
[  677.270545] Modules linked in: nls_cp437 vfat fat fuse ext2 joydev snd_hda_codec_hdmi snd_hda_codec_conexant btusb bluetooth mmc_block arc4 serio_raw evdev psmouse iwlwifi cdc_ncm usbnet thinkpad_acpi pcspkr mii cdc_acm mac80211 i915 nvram cdc_wdm uvcvideo snd_hda_intel cfg80211 videodev snd_hda_codec v4l2_compat_ioctl32 media snd_hwdep iTCO_wdt snd_pcm iTCO_vendor_support snd_page_alloc i2c_i801 i2c_algo_bit snd_timer drm_kms_helper sdhci_pci snd sdhci e1000e mmc_core soundcore mei(C) thermal rfkill drm battery intel_agp tpm_tis ac i2c_core tpm intel_gtt tpm_bios wmi video button processor ext4 crc16 jbd2 mbcache sd_mod xhci_hcd ahci libahci libata scsi_mod ehci_hcd usbcore usb_common
[  677.270828] 
[  677.270836] Pid: 249, comm: mmcqd/0 Tainted: G         C   3.2.6-2-ARCH #1 LENOVO 42914BG/42914BG
[  677.270867] RIP: 0010:[<ffffffffa01a5799>]  [<ffffffffa01a5799>] mmc_sd_num_wr_blocks+0x139/0x220 [mmc_block]
[  677.270901] RSP: 0018:ffff88020a801c70  EFLAGS: 00010246
[  677.270917] RAX: 0000000000000000 RBX: ffff88020eb7d000 RCX: 0000000000000000
[  677.270939] RDX: 0000000000000000 RSI: ffff88020f423000 RDI: 0000000000000000
[  677.270960] RBP: ffff88020a801d90 R08: 0000000000000000 R09: 0000000000000064
[  677.270981] R10: 0000000000000064 R11: 0000000000000000 R12: ffff88020a801cc0
[  677.271002] R13: ffff88020a801c78 R14: ffff88020a801d08 R15: ffff88020fb60058
[  677.271024] FS:  0000000000000000(0000) GS:ffff88021e200000(0000) knlGS:0000000000000000
[  677.271048] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[  677.271065] CR2: 00007fb8a11800a4 CR3: 000000020ec64000 CR4: 00000000000406f0
[  677.271087] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  677.271108] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[  677.271130] Process mmcqd/0 (pid: 249, threadinfo ffff88020a800000, task ffff88020e8bb1e0)
[  677.271154] Stack:
[  677.271162]  ffff88020a801cc8 0000000000000000 0000000000000000 0000000000000000
[  677.271189]  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[  677.271216]  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[  677.271243] Call Trace:
[  677.271257]  [<ffffffffa0244121>] ? mmc_start_req+0x81/0x170 [mmc_core]
[  677.271278]  [<ffffffffa01a5fdb>] mmc_blk_issue_rw_rq+0x31b/0x3b0 [mmc_block]
[  677.271301]  [<ffffffff8104f433>] ? __wake_up+0x53/0x70
[  677.271319]  [<ffffffffa01a6efb>] mmc_blk_issue_rq+0x1eb/0x4f0 [mmc_block]
[  677.271341]  [<ffffffffa01a7730>] mmc_queue_thread+0x60/0x160 [mmc_block]
[  677.271363]  [<ffffffffa01a76d0>] ? mmc_alloc_sg+0x70/0x70 [mmc_block]
[  677.271384]  [<ffffffff8108842c>] kthread+0x8c/0xa0
[  677.271402]  [<ffffffff8145f4f4>] kernel_thread_helper+0x4/0x10
[  677.271421]  [<ffffffff810883a0>] ? kthread_worker_fn+0x190/0x190
[  677.271440]  [<ffffffff8145f4f0>] ? gs_change+0x13/0x13
[  677.271456] Code: ff 89 85 34 ff ff ff 89 c8 41 f7 e0 8b 86 64 03 00 00 69 ff a0 86 01 00 89 d1 41 f7 e0 89 f8 c1 e9 06 41 89 d0 31 d2 41 c1 e8 06 <41> f7 f0 01 c1 81 f9 a0 86 01 00 76 14 c7 85 30 ff ff ff 00 e1 
[  677.271610] RIP  [<ffffffffa01a5799>] mmc_sd_num_wr_blocks+0x139/0x220 [mmc_block]
[  677.271635]  RSP <ffff88020a801c70>