[ 2187.302534] ------------[ cut here ]------------
[ 2187.303204] WARNING: at /build/buildd/linux-3.2.0/kernel/exit.c:879 do_exit+0x55/0x420()
[ 2187.303886] Hardware name: Macmini6,2
[ 2187.304566] Modules linked in: dm_crypt ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables kvm_intel kvm snd_hda_codec_hdmi snd_hda_codec_cirrus arc4 b43 mac80211 cfg80211 ssb ext2 input_polldev dm_multipath bridge stp apple_gmux snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore bcma snd_page_alloc mei(C) mac_hid lp parport ses enclosure hid_apple usbhid hid dm_raid45 xor dm_mirror dm_region_hash dm_log btrfs zlib_deflate libcrc32c usb_storage uas firewire_ohci firewire_core crc_itu_t sdhci_pci tg3(O) sdhci i915 drm_kms_helper drm i2c_algo_bit video zram(C)
[ 2187.309148] Pid: 4166, comm: flush-252:5 Tainted: G      D  C O 3.2.0-29-generic #46-Ubuntu
[ 2187.309917] Call Trace:
[ 2187.310683]  [<ffffffff81066cff>] warn_slowpath_common+0x7f/0xc0
[ 2187.311450]  [<ffffffff81066d5a>] warn_slowpath_null+0x1a/0x20
[ 2187.312203]  [<ffffffff8106b465>] do_exit+0x55/0x420
[ 2187.312952]  [<ffffffff8165aa60>] oops_end+0xb0/0xf0
[ 2187.313689]  [<ffffffff8163fd63>] no_context+0x150/0x15d
[ 2187.314426]  [<ffffffff8163ff39>] __bad_area_nosemaphore+0x1c9/0x1e8
[ 2187.315161]  [<ffffffff8163ff6b>] bad_area_nosemaphore+0x13/0x15
[ 2187.315890]  [<ffffffff8165d6b6>] do_page_fault+0x426/0x520
[ 2187.316621]  [<ffffffff812f73c9>] ? blk_recount_segments+0x29/0x40
[ 2187.317353]  [<ffffffff811accf6>] ? bio_phys_segments+0x26/0x30
[ 2187.318085]  [<ffffffff812ee74c>] ? drive_stat_acct+0x10c/0x190
[ 2187.318815]  [<ffffffff812f349e>] ? blk_queue_bio+0x11e/0x380
[ 2187.319544]  [<ffffffff8165a035>] page_fault+0x25/0x30
[ 2187.320271]  [<ffffffff811ac5a6>] ? bio_get_nr_vecs+0x16/0x40
[ 2187.320998]  [<ffffffff8121c26e>] ? io_submit_init.isra.6+0x3e/0x100
[ 2187.321727]  [<ffffffff8121c54a>] io_submit_add_bh+0x1ba/0x1d0
[ 2187.322455]  [<ffffffff8121c6de>] ext4_bio_write_page+0x17e/0x230
[ 2187.323185]  [<ffffffff81217fd9>] mpage_da_submit_io+0x4b9/0x590
[ 2187.323917]  [<ffffffff8121a2fe>] mpage_da_map_and_submit+0x18e/0x370
[ 2187.324648]  [<ffffffff8121a540>] mpage_add_bh_to_extent+0x60/0xe0
[ 2187.325376]  [<ffffffff8121a8b9>] write_cache_pages_da+0x2f9/0x450
[ 2187.326108]  [<ffffffff8121ad63>] ext4_da_writepages+0x353/0x640
[ 2187.326836]  [<ffffffff81122571>] do_writepages+0x21/0x40
[ 2187.327561]  [<ffffffff811a0e60>] writeback_single_inode+0x180/0x430
[ 2187.328291]  [<ffffffff811a1526>] writeback_sb_inodes+0x1b6/0x270
[ 2187.329019]  [<ffffffff811a167e>] __writeback_inodes_wb+0x9e/0xd0
[ 2187.329744]  [<ffffffff811a192b>] wb_writeback+0x27b/0x330
[ 2187.330467]  [<ffffffff810128f0>] ? __switch_to+0x300/0x360
[ 2187.331191]  [<ffffffff81192fc2>] ? get_nr_dirty_inodes+0x52/0x80
[ 2187.331915]  [<ffffffff811a1a7f>] wb_check_old_data_flush+0x9f/0xb0
[ 2187.332642]  [<ffffffff811a2971>] wb_do_writeback+0x151/0x1d0
[ 2187.333338]  [<ffffffff81076670>] ? usleep_range+0x50/0x50
[ 2187.334004]  [<ffffffff811a2a73>] bdi_writeback_thread+0x83/0x2a0
[ 2187.334663]  [<ffffffff811a29f0>] ? wb_do_writeback+0x1d0/0x1d0
[ 2187.335316]  [<ffffffff81089fbc>] kthread+0x8c/0xa0
[ 2187.335966]  [<ffffffff81664034>] kernel_thread_helper+0x4/0x10
[ 2187.336616]  [<ffffffff81089f30>] ? flush_kthread_worker+0xa0/0xa0
[ 2187.337268]  [<ffffffff81664030>] ? gs_change+0x13/0x13
[ 2187.337908] ---[ end trace aa67a4df45a928ec ]---
[ 2187.459967] BUG: unable to handle kernel paging request at 000000002000001c
[ 2187.460611] IP: [<ffffffff81117834>] find_get_page+0x34/0x90
[ 2187.461214] PGD 3c3d63067 PUD 3b706c067 PMD 0
[ 2187.461802] Oops: 0000 [#2] SMP
[ 2187.462367] CPU 1
[ 2187.462374] Modules linked in: dm_crypt ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables kvm_intel kvm snd_hda_codec_hdmi snd_hda_codec_cirrus arc4 b43 mac80211 cfg80211 ssb ext2 input_polldev dm_multipath bridge stp apple_gmux snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore bcma snd_page_alloc mei(C) mac_hid lp parport ses enclosure hid_apple usbhid hid dm_raid45 xor dm_mirror dm_region_hash dm_log btrfs zlib_deflate libcrc32c usb_storage uas firewire_ohci firewire_core crc_itu_t sdhci_pci tg3(O) sdhci i915 drm_kms_helper drm i2c_algo_bit video zram(C)
[ 2187.466588]
[ 2187.467204] Pid: 4160, comm: dd Tainted: G      D WC O 3.2.0-29-generic #46-Ubuntu Apple Inc. Macmini6,2/Mac-F65AE981FFA204ED
[ 2187.467868] RIP: 0010:[<ffffffff81117834>]  [<ffffffff81117834>] find_get_page+0x34/0x90
[ 2187.468553] RSP: 0018:ffff8803c3e1dc88  EFLAGS: 00010246
[ 2187.469219] RAX: ffff880320dfe3a0 RBX: ffff88045e429f60 RCX: ffff880320dfe3a0
[ 2187.469893] RDX: 0000000000000001 RSI: 0000000002683541 RDI: 0000000020000000
[ 2187.470568] RBP: ffff8803c3e1dc98 R08: 0000000020000000 R09: ffff880320dfe3a0
[ 2187.471247] R10: 0000000000012a00 R11: 0000000000000000 R12: 0000000002683541
[ 2187.471929] R13: 0000000002683541 R14: ffff880413c37d00 R15: 0000000000000000
[ 2187.472634] FS:  00007f287a0f2700(0000) GS:ffff88046f240000(0000) knlGS:0000000000000000
[ 2187.473328] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 2187.474026] CR2: 000000002000001c CR3: 00000003c3d42000 CR4: 00000000001426e0
[ 2187.474734] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2187.475443] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 2187.476152] Process dd (pid: 4160, threadinfo ffff8803c3e1c000, task ffff880452a0ae00)
[ 2187.476890] Stack:
[ 2187.477607]  ffffea000ed18e40 ffff88045e429f58 ffff8803c3e1dd28 ffffffff81118051
[ 2187.478350]  0000000000001000 ffff8803c3e1de58 0000000002683541 0000000002683540
[ 2187.479095]  00000000c3e1de00 0000000002683600 ffff880413c37d70 ffff88045e429e18
[ 2187.479845] Call Trace:
[ 2187.480603]  [<ffffffff81118051>] do_generic_file_read.constprop.33+0x161/0x440
[ 2187.481359]  [<ffffffff811190cf>] generic_file_aio_read+0xef/0x280
[ 2187.482118]  [<ffffffff81210c2f>] ? ext4_file_write+0xbf/0x260
[ 2187.482881]  [<ffffffff8117735a>] do_sync_read+0xda/0x120
[ 2187.483639]  [<ffffffff8129cd83>] ? security_file_permission+0x93/0xb0
[ 2187.484401]  [<ffffffff811777e1>] ? rw_verify_area+0x61/0xf0
[ 2187.485183]  [<ffffffff81177cc0>] vfs_read+0xb0/0x180
[ 2187.485185]  [<ffffffff81177dda>] sys_read+0x4a/0x90
[ 2187.485196]  [<ffffffff81661ec2>] system_call_fastpath+0x16/0x1b
[ 2187.485197] Code: 66 66 90 48 8d 5f 08 49 89 f4 4c 89 e6 48 89 df e8 42 88 1f 00 48 85 c0 48 89 c1 74 3a 48 8b 38 48 85 ff 74 29 40 f6 c7 03 75 46 <8b> 57 1c 85 d2 74 d8 8d 72 01 4c 8d 47 1c 89 d0 f0 0f b1 77 1c
[ 2187.485210] RIP  [<ffffffff81117834>] find_get_page+0x34/0x90
[ 2187.485213]  RSP <ffff8803c3e1dc88>
[ 2187.485213] CR2: 000000002000001c
[ 2187.485223] ---[ end trace aa67a4df45a928ed ]---
[ 2187.500638] general protection fault: 0000 [#3] SMP
[ 2187.501492] CPU 1
[ 2187.501500] Modules linked in: dm_crypt ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables kvm_intel kvm snd_hda_codec_hdmi snd_hda_codec_cirrus arc4 b43 mac80211 cfg80211 ssb ext2 input_polldev dm_multipath bridge stp apple_gmux snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore bcma snd_page_alloc mei(C) mac_hid lp parport ses enclosure hid_apple usbhid hid dm_raid45 xor dm_mirror dm_region_hash dm_log btrfs zlib_deflate libcrc32c usb_storage uas firewire_ohci firewire_core crc_itu_t sdhci_pci tg3(O) sdhci i915 drm_kms_helper drm i2c_algo_bit video zram(C)
[ 2187.507790]
[ 2187.508678] Pid: 4160, comm: dd Tainted: G      D WC O 3.2.0-29-generic #46-Ubuntu Apple Inc. Macmini6,2/Mac-F65AE981FFA204ED
[ 2187.509574] RIP: 0010:[<ffffffff811aa00b>]  [<ffffffff811aa00b>] block_invalidatepage+0x5b/0xa0
[ 2187.510462] RSP: 0018:ffff8803c3e1d668  EFLAGS: 00010206
[ 2187.511331] RAX: 000000007d2b7f64 RBX: ffffea00075f16c0 RCX: ffff88046f5b1000
[ 2187.512195] RDX: 0000000000000002 RSI: ffff88031d4ee3a8 RDI: bbb18df5e70baa72
[ 2187.513065] RBP: ffff8803c3e1d698 R08: 4000000000000000 R09: 5010000000000000
[ 2187.513901] R10: fcc4b1e3abb0ea02 R11: 0000000000000000 R12: bbb18df5e70baa72
[ 2187.514729] R13: 000000007d2b7f64 R14: 0000000000000000 R15: ffff88033d4ee3a8
[ 2187.515555] FS:  00007f287a0f2700(0000) GS:ffff88046f240000(0000) knlGS:0000000000000000
[ 2187.516387] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 2187.517256] CR2: 000000002000001c CR3: 0000000001c05000 CR4: 00000000001426e0
[ 2187.518111] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2187.518955] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 2187.519812] Process dd (pid: 4160, threadinfo ffff8803c3e1c000, task ffff880452a0ae00)
[ 2187.520666] Stack:
[ 2187.521489]  ffff8803c3e1d698 ffffea00075f16c0 ffff88045e429f58 ffff88045e429f58
[ 2187.522338]  0000000000000000 0000000000000000 ffff8803c3e1d6b8 ffffffff81124b8e
[ 2187.523192]  00000000024d3d11 ffffffffffffffff ffff8803c3e1d798 ffffffff81124d0a
[ 2187.524038] Call Trace:
[ 2187.524890]  [<ffffffff81124b8e>] truncate_inode_page+0x8e/0xa0
[ 2187.525720]  [<ffffffff81124d0a>] truncate_inode_pages_range+0x16a/0x4c0
[ 2187.526545]  [<ffffffff81125075>] truncate_inode_pages+0x15/0x20
[ 2187.527362]  [<ffffffff811afe64>] __blkdev_put+0x184/0x1e0
[ 2187.528173]  [<ffffffff811aff1b>] blkdev_put+0x5b/0x160
[ 2187.528998]  [<ffffffff811b0045>] blkdev_close+0x25/0x30
[ 2187.529793]  [<ffffffff81178f1e>] __fput+0xbe/0x210
[ 2187.530583]  [<ffffffff81179095>] fput+0x25/0x30
[ 2187.531371]  [<ffffffff81175c76>] filp_close+0x66/0x90
[ 2187.532157]  [<ffffffff810695da>] put_files_struct.part.10+0x7a/0xe0
[ 2187.532966]  [<ffffffff8106aff8>] put_files_struct+0x18/0x20
[ 2187.533751]  [<ffffffff8106b0c4>] exit_files+0x54/0x70
[ 2187.534539]  [<ffffffff8106b5a5>] do_exit+0x195/0x420
[ 2187.535325]  [<ffffffff8165aa60>] oops_end+0xb0/0xf0
[ 2187.536085]  [<ffffffff8163fd63>] no_context+0x150/0x15d
[ 2187.536832]  [<ffffffff8163ff39>] __bad_area_nosemaphore+0x1c9/0x1e8
[ 2187.537552]  [<ffffffff8163ffb2>] bad_area+0x45/0x4e
[ 2187.538268]  [<ffffffff8165d7a5>] do_page_fault+0x515/0x520
[ 2187.538985]  [<ffffffff811229d3>] ? __do_page_cache_readahead+0x163/0x180
[ 2187.539707]  [<ffffffff8165a035>] page_fault+0x25/0x30
[ 2187.540436]  [<ffffffff81117834>] ? find_get_page+0x34/0x90
[ 2187.541164]  [<ffffffff8111781e>] ? find_get_page+0x1e/0x90
[ 2187.541864]  [<ffffffff81118051>] do_generic_file_read.constprop.33+0x161/0x440
[ 2187.542555]  [<ffffffff811190cf>] generic_file_aio_read+0xef/0x280
[ 2187.543232]  [<ffffffff81210c2f>] ? ext4_file_write+0xbf/0x260
[ 2187.543897]  [<ffffffff8117735a>] do_sync_read+0xda/0x120
[ 2187.544560]  [<ffffffff8129cd83>] ? security_file_permission+0x93/0xb0
[ 2187.545188]  [<ffffffff811777e1>] ? rw_verify_area+0x61/0xf0
[ 2187.545799]  [<ffffffff81177cc0>] vfs_read+0xb0/0x180
[ 2187.546389]  [<ffffffff81177dda>] sys_read+0x4a/0x90
[ 2187.546959]  [<ffffffff81661ec2>] system_call_fastpath+0x16/0x1b
[ 2187.547516] Code: 07 f6 c4 08 74 44 48 8b 07 f6 c4 08 74 5e 4c 8b 7f 30 31 c0 4c 89 ff eb 12 0f 1f 80 00 00 00 00 4d 39 e7 74 20 44 89 e8 4c 89 e7 <44> 8b 6f 20 4c 8b 67 08 41 01 c5 49 39 c6 77 e5 e8 30 ff ff ff
[ 2187.548889] RIP  [<ffffffff811aa00b>] block_invalidatepage+0x5b/0xa0
[ 2187.549510]  RSP <ffff8803c3e1d668>
[ 2187.550141] ---[ end trace aa67a4df45a928ee ]---
[ 2187.550778] Fixing recursive fault but reboot is needed!