Re: [BUG] fatal hang untarring 90GB file, possibly writebackrelated.
From: James Bottomley
Date: Wed Apr 27 2011 - 13:50:49 EST
On Wed, 2011-04-27 at 13:34 -0400, Chris Mason wrote:
> [ cc'd linux-ext4 ]
>
> James is hitting softlockups in kswapd while doing writes to a large
> ext4 file.
>
> Excerpts from James Bottomley's message of 2011-04-27 13:21:42 -0400:
> > On Wed, 2011-04-27 at 12:54 -0400, Chris Mason wrote:
> > > Ok, I'd try turning it on so we catch the sleeping with a spinlock held
> > > case better.
> >
> > Will do, that's CONFIG_PREEMPT (rather than CONFIG_PREEMPT_VOLUNTARY)?
> >
> > This is the trace with sysrq-l and sysrq-w
>
> >
> > The repro this time doesn't have a soft lockup, just the tar is hung and
> > one of my CPUs is in 99% system.
> > [ 454.742935] flush-253:2 D 0000000000000000 0 793 2 0x00000000
> > [ 454.745425] ffff88006355b710 0000000000000046 ffff88006355b6b0 ffffffff00000000
> > [ 454.747955] ffff880037ee9700 ffff88006355bfd8 ffff88006355bfd8 0000000000013b40
> > [ 454.750506] ffffffff81a0b020 ffff880037ee9700 ffff88006355b710 000000018106e7c3
> > [ 454.753048] Call Trace:
> > [ 454.755537] [<ffffffff811c82b8>] do_get_write_access+0x1c6/0x38d
> > [ 454.758071] [<ffffffff8106e88b>] ? autoremove_wake_function+0x3d/0x3d
> > [ 454.760644] [<ffffffff811c8588>] jbd2_journal_get_write_access+0x2b/0x42
> > [ 454.763206] [<ffffffff8118ea4f>] ? ext4_read_block_bitmap+0x54/0x2d0
> > [ 454.765770] [<ffffffff811b5888>] __ext4_journal_get_write_access+0x58/0x66
> > [ 454.768353] [<ffffffff811b8dbe>] ext4_mb_mark_diskspace_used+0x70/0x2ae
> > [ 454.770942] [<ffffffff811bb10e>] ext4_mb_new_blocks+0x1c8/0x3c2
> > [ 454.773501] [<ffffffff811b4628>] ext4_ext_map_blocks+0x1961/0x1c04
> > [ 454.776082] [<ffffffff8122ed78>] ? radix_tree_gang_lookup_tag_slot+0x81/0xa2
> > [ 454.778711] [<ffffffff810d55f9>] ? find_get_pages_tag+0x3b/0xd6
> > [ 454.781323] [<ffffffff811967fa>] ext4_map_blocks+0x112/0x1e7
> > [ 454.783894] [<ffffffff811984e8>] mpage_da_map_and_submit+0x93/0x2cd
> > [ 454.786491] [<ffffffff81198de5>] ext4_da_writepages+0x2c1/0x44d
> > [ 454.789090] [<ffffffff810ddeb4>] do_writepages+0x21/0x2a
>
> So our flusher threads are stuck waiting in
> jbd2_journal_get_write_access, which means they aren't cleaning dirty
> pages.
>
> In order to get write access, they probably need the transaction to
> commit:
>
> > [ 454.828711] jbd2/dm-2-8 D 0000000000000000 0 799 2 0x00000000
> > [ 454.831390] ffff88006d59db10 0000000000000046 ffff88006d59daa0 ffffffff00000000
> > [ 454.834094] ffff88006deb4500 ffff88006d59dfd8 ffff88006d59dfd8 0000000000013b40
> > [ 454.836788] ffffffff81a0b020 ffff88006deb4500 ffff88006d59dad0 000000016d59dad0
> > [ 454.839453] Call Trace:
> > [ 454.842098] [<ffffffff810d5904>] ? lock_page+0x3e/0x3e
> > [ 454.844738] [<ffffffff810d5904>] ? lock_page+0x3e/0x3e
> > [ 454.847303] [<ffffffff8147a7c9>] io_schedule+0x63/0x7e
> > [ 454.849877] [<ffffffff810d5912>] sleep_on_page+0xe/0x12
> > [ 454.852469] [<ffffffff8147aea9>] __wait_on_bit+0x48/0x7b
> > [ 454.855021] [<ffffffff810d5a8c>] wait_on_page_bit+0x72/0x74
> > [ 454.857583] [<ffffffff8106e88b>] ? autoremove_wake_function+0x3d/0x3d
> > [ 454.860171] [<ffffffff810d5b6b>] filemap_fdatawait_range+0x84/0x163
> > [ 454.862744] [<ffffffff810d5c6e>] filemap_fdatawait+0x24/0x26
> > [ 454.865299] [<ffffffff811c94a2>] jbd2_journal_commit_transaction+0x922/0x1194
>
> But that seems to be waiting for a page lock. Probably the same page
> lock held by the flusher thread? Looks like tar is stuck in the same
> boat down below.
To test the theory, Chris asked me to try with data=ordered.
Unfortunately, the deadlock still shows up. This is what I get.
James
---
[ 263.749738] BUG: soft lockup - CPU#2 stuck for 67s! [kswapd0:46]
[ 263.751207] Modules linked in: netconsole configfs cpufreq_ondemand acpi_cpufreq freq_table mperf snd_hda_codec_hdmi snd_hda_codec_conexant arc4 snd_hda_intel snd_hda_codec snd_hwdep iwlagn snd_seq snd_seq_device uvcvideo mac80211 e1000e btusb videodev snd_pcm v4l2_compat_ioctl32 snd_timer bluetooth i2c_i801 snd cfg80211 microcode iTCO_wdt xhci_hcd iTCO_vendor_support wmi pcspkr joydev soundcore snd_page_alloc rfkill uinput ipv6 sdhci_pci sdhci mmc_core i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
[ 263.756081] CPU 2
[ 263.756091] Modules linked in: netconsole configfs cpufreq_ondemand acpi_cpufreq freq_table mperf snd_hda_codec_hdmi snd_hda_codec_conexant arc4 snd_hda_intel snd_hda_codec snd_hwdep iwlagn snd_seq snd_seq_device uvcvideo mac80211 e1000e btusb videodev snd_pcm v4l2_compat_ioctl32 snd_timer bluetooth i2c_i801 snd cfg80211 microcode iTCO_wdt xhci_hcd iTCO_vendor_support wmi pcspkr joydev soundcore snd_page_alloc rfkill uinput ipv6 sdhci_pci sdhci mmc_core i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
[ 263.763033]
[ 263.764761] Pid: 46, comm: kswapd0 Not tainted 2.6.39-rc4+ #1 LENOVO 4170CTO/4170CTO
[ 263.766509] RIP: 0010:[<ffffffff810e1fa2>] [<ffffffff810e1fa2>] shrink_slab+0x86/0x166
[ 263.768256] RSP: 0018:ffff8800709ebda0 EFLAGS: 00000206
[ 263.769976] RAX: 0000000000000000 RBX: ffff8800709ebde0 RCX: 0000000000000002
[ 263.771683] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81a44e50
[ 263.773378] RBP: ffff8800709ebde0 R08: 0000000000000000 R09: 000000000000a2b2
[ 263.775053] R10: 0000000000000002 R11: ffffffff81a44e50 R12: ffffffff8148300e
[ 263.776728] R13: ffff8800709ebe58 R14: 0000000000000004 R15: 00000000000178f9
[ 263.778408] FS: 0000000000000000(0000) GS:ffff880100280000(0000) knlGS:0000000000000000
[ 263.780098] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 263.781777] CR2: 0000000001091018 CR3: 0000000001a03000 CR4: 00000000000406e0
[ 263.783458] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 263.785140] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 263.786811] Process kswapd0 (pid: 46, threadinfo ffff8800709ea000, task ffff88006dfa8000)
[ 263.788491] Stack:
[ 263.790153] 000000000000003d 0000000000000080 ffff880000000000 ffff8801005e6700
[ 263.791810] ffff8801005e6000 0000000000000002 0000000000000000 000000000000000c
[ 263.793426] ffff8800709ebee0 ffffffff810e4bcc 0000000000000003 ffff88006dfa8000
[ 263.795038] Call Trace:
[ 263.796614] [<ffffffff810e4bcc>] kswapd+0x533/0x798
[ 263.798183] [<ffffffff810e4699>] ? mem_cgroup_shrink_node_zone+0xe3/0xe3
[ 263.799755] [<ffffffff8106e157>] kthread+0x84/0x8c
[ 263.801328] [<ffffffff81483764>] kernel_thread_helper+0x4/0x10
[ 263.802904] [<ffffffff8106e0d3>] ? kthread_worker_fn+0x148/0x148
[ 263.804434] [<ffffffff81483760>] ? gs_change+0x13/0x13
[ 263.805914] Code: 83 eb 10 e9 ce 00 00 00 44 89 f2 31 f6 48 89 df ff 13 48 63 4b 08 4c 63 e8 48 8b 45 c8 31 d2 48 f7 f1 31 d2 49 0f af c5 49 f7 f7
[ 263.806080] 03 43 20 48 85 c0 48 89 43 20 79 18 48 8b 33 48 89 c2 48 c7
[ 263.809185] Call Trace:
[ 263.810748] [<ffffffff810e4bcc>] kswapd+0x533/0x798
[ 263.812327] [<ffffffff810e4699>] ? mem_cgroup_shrink_node_zone+0xe3/0xe3
[ 263.813913] [<ffffffff8106e157>] kthread+0x84/0x8c
[ 263.815486] [<ffffffff81483764>] kernel_thread_helper+0x4/0x10
[ 263.817053] [<ffffffff8106e0d3>] ? kthread_worker_fn+0x148/0x148
[ 263.818621] [<ffffffff81483760>] ? gs_change+0x13/0x13
[ 272.421176] SysRq : Show backtrace of all active CPUs
[ 272.422748] sending NMI to all CPUs:
[ 272.424304] NMI backtrace for cpu 2
[ 272.426364] CPU 2
[ 272.426380] Modules linked in: netconsole configfs cpufreq_ondemand acpi_cpufreq freq_table mperf snd_hda_codec_hdmi snd_hda_codec_conexant arc4 snd_hda_intel snd_hda_codec snd_hwdep iwlagn snd_seq snd_seq_device uvcvideo mac80211 e1000e btusb videodev snd_pcm v4l2_compat_ioctl32 snd_timer bluetooth i2c_i801 snd cfg80211 microcode iTCO_wdt xhci_hcd iTCO_vendor_support wmi pcspkr joydev soundcore snd_page_alloc rfkill uinput ipv6 sdhci_pci sdhci mmc_core i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
[ 272.435128]
[ 272.437299] Pid: 46, comm: kswapd0 Not tainted 2.6.39-rc4+ #1 LENOVO 4170CTO/4170CTO
[ 272.439506] RIP: 0010:[<ffffffff810d9b6e>] [<ffffffff810d9b6e>] zone_watermark_ok_safe+0xa8/0xae
[ 272.441728] RSP: 0018:ffff8800709ebd80 EFLAGS: 00000282
[ 272.443916] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 272.446101] RDX: 0000000000000813 RSI: 0000000000000000 RDI: ffff8801005e6000
[ 272.448258] RBP: ffff8800709ebd90 R08: 0000000000000000 R09: 00000000000007f0
[ 272.450362] R10: 0000000000000002 R11: 00000000000000cd R12: ffff8801005e6000
[ 272.452399] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801005e6000
[ 272.454367] FS: 0000000000000000(0000) GS:ffff880100280000(0000) knlGS:0000000000000000
[ 272.456306] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 272.458188] CR2: 0000000001091018 CR3: 0000000001a03000 CR4: 00000000000406e0
[ 272.460021] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 272.461789] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 272.463503] Process kswapd0 (pid: 46, threadinfo ffff8800709ea000, task ffff88006dfa8000)
[ 272.465234] Stack:
[ 272.466929] 0000000000000000 0000000000000000 ffff8800709ebde0 ffffffff810e1e8a
[ 272.468675] ffff880000000002 ffffffff8106e701 ffff880000000002 ffff8801005e6000
[ 272.470406] ffff8801005f9e68 0000000000000002 0000000000000000 0000000000000000
[ 272.472144] Call Trace:
[ 272.473850] [<ffffffff810e1e8a>] sleeping_prematurely.part.11+0x6e/0xd2
[ 272.475582] [<ffffffff8106e701>] ? prepare_to_wait_exclusive+0x67/0x77
[ 272.477304] [<ffffffff810e47fe>] kswapd+0x165/0x798
[ 272.479015] [<ffffffff8106e84e>] ? remove_wait_queue+0x3a/0x3a
[ 272.480712] [<ffffffff810e4699>] ? mem_cgroup_shrink_node_zone+0xe3/0xe3
[ 272.482414] [<ffffffff8106e157>] kthread+0x84/0x8c
[ 272.484106] [<ffffffff81483764>] kernel_thread_helper+0x4/0x10
[ 272.485809] [<ffffffff8106e0d3>] ? kthread_worker_fn+0x148/0x148
[ 272.487507] [<ffffffff81483760>] ? gs_change+0x13/0x13
[ 272.489175] Code: a6 00 48 8b 55 d8 8b 4d d0 44 8b 45 c8 7c c0 45 31 c9 4d 85 ed 4d 0f 49 cd 44 89 e6 48 89 df e8 5e f4 ff ff 48 83 c4 20 5b 41 5c
[ 272.489409] 5d 41 5e 5d c3 55 48 89 e5 0f 1f 44 00 00 bf da 00 02 00 e8
[ 272.492911] Call Trace:
[ 272.494651] [<ffffffff810e1e8a>] sleeping_prematurely.part.11+0x6e/0xd2
[ 272.496408] [<ffffffff8106e701>] ? prepare_to_wait_exclusive+0x67/0x77
[ 272.498173] [<ffffffff810e47fe>] kswapd+0x165/0x798
[ 272.499926] [<ffffffff8106e84e>] ? remove_wait_queue+0x3a/0x3a
[ 272.501678] [<ffffffff810e4699>] ? mem_cgroup_shrink_node_zone+0xe3/0xe3
[ 272.503444] [<ffffffff8106e157>] kthread+0x84/0x8c
[ 272.505198] [<ffffffff81483764>] kernel_thread_helper+0x4/0x10
[ 272.506968] [<ffffffff8106e0d3>] ? kthread_worker_fn+0x148/0x148
[ 272.508691] [<ffffffff81483760>] ? gs_change+0x13/0x13
[ 272.510355] NMI backtrace for cpu 1
[ 272.511996] CPU 1
[ 272.512011] Modules linked in: netconsole configfs cpufreq_ondemand acpi_cpufreq freq_table mperf snd_hda_codec_hdmi snd_hda_codec_conexant arc4 snd_hda_intel snd_hda_codec snd_hwdep iwlagn snd_seq snd_seq_device uvcvideo mac80211 e1000e btusb videodev snd_pcm v4l2_compat_ioctl32 snd_timer bluetooth i2c_i801 snd cfg80211 microcode iTCO_wdt xhci_hcd iTCO_vendor_support wmi pcspkr joydev soundcore snd_page_alloc rfkill uinput ipv6 sdhci_pci sdhci mmc_core i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
[ 272.519303]
[ 272.521156] Pid: 0, comm: kworker/0:0 Not tainted 2.6.39-rc4+ #1 LENOVO 4170CTO/4170CTO
[ 272.523190] RIP: 0010:[<ffffffff81275d36>] [<ffffffff81275d36>] intel_idle+0xaa/0x100
[ 272.525110] RSP: 0018:ffff880071587e68 EFLAGS: 00000046
[ 272.527018] RAX: 0000000000000010 RBX: 0000000000000004 RCX: 0000000000000001
[ 272.528960] RDX: 0000000000000000 RSI: ffff880071587fd8 RDI: ffffffff81a0e640
[ 272.530906] RBP: ffff880071587eb8 R08: 00000000000004af R09: 00000000000003e5
[ 272.532800] R10: ffffffff00000001 R11: ffff880100253b40 R12: 0000000000000010
[ 272.534634] R13: 12187a34a107f726 R14: 0000000000000002 R15: 0000000000000001
[ 272.536399] FS: 0000000000000000(0000) GS:ffff880100240000(0000) knlGS:0000000000000000
[ 272.538145] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 272.539879] CR2: 00000037da2830e4 CR3: 0000000001a03000 CR4: 00000000000406e0
[ 272.541614] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 272.543329] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 272.545026] Process kworker/0:0 (pid: 0, threadinfo ffff880071586000, task ffff880071589700)
[ 272.546756] Stack:
[ 272.548457] ffff880071587e88 ffffffff810731c0 ffff880100251290 0000000000011290
[ 272.550225] ffff880071587eb8 000000018139c97a ffffe8ffffc40170 ffffe8ffffc40170
[ 272.552009] ffffe8ffffc40240 0000000000000000 ffff880071587ef8 ffffffff8139b868
[ 272.553780] Call Trace:
[ 272.555514] [<ffffffff810731c0>] ? pm_qos_request+0x3e/0x45
[ 272.557259] [<ffffffff8139b868>] cpuidle_idle_call+0xe7/0x166
[ 272.559005] [<ffffffff81008321>] cpu_idle+0xa5/0xdf
[ 272.560755] [<ffffffff8146ae57>] start_secondary+0x223/0x225
[ 272.562485] Code: 28 e0 ff ff 80 e2 08 75 22 31 d2 48 83 c0 10 48 89 d1 0f 01 c8 0f ae f0 48 8b 86 38 e0 ff ff a8 08 75 08 b1 01 4c 89 e0 0f 01 c9 <e8> 23 09 e0 ff 4c 29 e8 48 89 c7 e8 ab 29 de ff 4c 69 e0 40 42
[ 272.566380] Call Trace:
[ 272.568193] [<ffffffff810731c0>] ? pm_qos_request+0x3e/0x45
[ 272.570031] [<ffffffff8139b868>] cpuidle_idle_call+0xe7/0x166
[ 272.571855] [<ffffffff81008321>] cpu_idle+0xa5/0xdf
[ 272.573658] [<ffffffff8146ae57>] start_secondary+0x223/0x225
[ 272.575463] NMI backtrace for cpu 0
[ 272.576865] CPU 0
[ 272.576875] Modules linked in: netconsole configfs cpufreq_ondemand acpi_cpufreq freq_table mperf snd_hda_codec_hdmi snd_hda_codec_conexant arc4 snd_hda_intel snd_hda_codec snd_hwdep iwlagn snd_seq snd_seq_device uvcvideo mac80211 e1000e btusb videodev snd_pcm v4l2_compat_ioctl32 snd_timer bluetooth i2c_i801 snd cfg80211 microcode iTCO_wdt xhci_hcd iTCO_vendor_support wmi pcspkr joydev soundcore snd_page_alloc rfkill uinput ipv6 sdhci_pci sdhci mmc_core i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
[ 272.582932]
[ 272.584474] Pid: 0, comm: swapper Not tainted 2.6.39-rc4+ #1 LENOVO 4170CTO/4170CTO
[ 272.586057] RIP: 0010:[<ffffffff81232e6e>] [<ffffffff81232e6e>] __const_udelay+0x23/0x2e
[ 272.587604] RSP: 0018:ffff880100203bf8 EFLAGS: 00000887
[ 272.589120] RAX: 00000000fa1c3100 RBX: 0000000000002710 RCX: 0000000000000040
[ 272.590635] RDX: 000000000026074e RSI: 0000000000000100 RDI: 0000000000418958
[ 272.592139] RBP: ffff880100203bf8 R08: 000000008b000052 R09: 0000000000000000
[ 272.593644] R10: 0000000000000000 R11: 0000000000000003 R12: 0000000000000008
[ 272.595143] R13: 000000000000006c R14: 0000000000000002 R15: 0000000000000001
[ 272.596635] FS: 0000000000000000(0000) GS:ffff880100200000(0000) knlGS:0000000000000000
[ 272.598139] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 272.599637] CR2: 00000037d909e270 CR3: 000000006f2d7000 CR4: 00000000000406f0
[ 272.601151] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 272.602669] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 272.604187] Process swapper (pid: 0, threadinfo ffffffff81a00000, task ffffffff81a0b020)
[ 272.605715] Stack:
[ 272.607238] ffff880100203c18 ffffffff8102166e 0000000000000000 ffffffff81a5e690
[ 272.608756] ffff880100203c28 ffffffff812be0ad ffff880100203c68 ffffffff812be310
[ 272.610226] ffff880037d01900 0000000000000026 ffff880037d01900 0000000000000001
[ 272.611653] Call Trace:
[ 272.613026] <IRQ>
[ 272.614388] [<ffffffff8102166e>] arch_trigger_all_cpu_backtrace+0x76/0x88
[ 272.615761] [<ffffffff812be0ad>] sysrq_handle_showallcpus+0xe/0x10
[ 272.617118] [<ffffffff812be310>] __handle_sysrq+0xa2/0x13c
[ 272.618465] [<ffffffff812be514>] sysrq_filter+0x112/0x16e
[ 272.619814] [<ffffffff81365764>] input_pass_event+0x94/0xcc
[ 272.621158] [<ffffffff81366bf1>] input_handle_event+0x480/0x48f
[ 272.622497] [<ffffffff810483af>] ? walk_tg_tree.constprop.71+0x28/0x94
[ 272.623844] [<ffffffff81366cf2>] input_event+0x69/0x87
[ 272.625172] [<ffffffff8136c17b>] atkbd_interrupt+0x4c1/0x58e
[ 272.626489] [<ffffffff81361b2e>] serio_interrupt+0x45/0x7f
[ 272.627791] [<ffffffff81362870>] i8042_interrupt+0x299/0x2ab
[ 272.629085] [<ffffffff8100eb79>] ? native_sched_clock+0x34/0x36
[ 272.630383] [<ffffffff810a95d5>] handle_irq_event_percpu+0x5f/0x198
[ 272.631675] [<ffffffff810a9746>] handle_irq_event+0x38/0x56
[ 272.632946] [<ffffffff81022e0e>] ? ack_apic_edge+0x25/0x29
[ 272.634205] [<ffffffff810ab71a>] handle_edge_irq+0x9d/0xc0
[ 272.635455] [<ffffffff8100ab9d>] handle_irq+0x88/0x8e
[ 272.636699] [<ffffffff8148409d>] do_IRQ+0x4d/0xa5
[ 272.637927] [<ffffffff8147c253>] common_interrupt+0x13/0x13
[ 272.639155] <EOI>
[ 272.640374] [<ffffffff8100e6cd>] ? paravirt_read_tsc+0x9/0xd
[ 272.641612] [<ffffffff81275d67>] ? intel_idle+0xdb/0x100
[ 272.642840] [<ffffffff81275d46>] ? intel_idle+0xba/0x100
[ 272.644012] [<ffffffff8139b868>] cpuidle_idle_call+0xe7/0x166
[ 272.645115] [<ffffffff81008321>] cpu_idle+0xa5/0xdf
[ 272.646215] [<ffffffff8145a91e>] rest_init+0x72/0x74
[ 272.647313] [<ffffffff81b59b9f>] start_kernel+0x3de/0x3e9
[ 272.648411] [<ffffffff81b592c4>] x86_64_start_reservations+0xaf/0xb3
[ 272.649514] [<ffffffff81b59140>] ? early_idt_handlers+0x140/0x140
[ 272.650624] [<ffffffff81b593ca>] x86_64_start_kernel+0x102/0x111
[ 272.651725] Code: ff 15 37 2b 82 00 5d c3 55 48 89 e5 0f 1f 44 00 00 65 48 8b 14 25 98 3a 01 00 48 8d 04 bd 00 00 00 00 48 69 d2 fa 00 00 00 f7 e2
[ 272.651891] 8d 7a 01 e8 c3 ff ff ff 5d c3 55 48 89 e5 0f 1f 44 00 00 48
[ 272.654210] Call Trace:
[ 272.655298] <IRQ> [<ffffffff8102166e>] arch_trigger_all_cpu_backtrace+0x76/0x88
[ 272.656372] [<ffffffff812be0ad>] sysrq_handle_showallcpus+0xe/0x10
[ 272.657421] [<ffffffff812be310>] __handle_sysrq+0xa2/0x13c
[ 272.658456] [<ffffffff812be514>] sysrq_filter+0x112/0x16e
[ 272.659480] [<ffffffff81365764>] input_pass_event+0x94/0xcc
[ 272.660486] [<ffffffff81366bf1>] input_handle_event+0x480/0x48f
[ 272.661487] [<ffffffff810483af>] ? walk_tg_tree.constprop.71+0x28/0x94
[ 272.662497] [<ffffffff81366cf2>] input_event+0x69/0x87
[ 272.663502] [<ffffffff8136c17b>] atkbd_interrupt+0x4c1/0x58e
[ 272.664519] [<ffffffff81361b2e>] serio_interrupt+0x45/0x7f
[ 272.665525] [<ffffffff81362870>] i8042_interrupt+0x299/0x2ab
[ 272.666522] [<ffffffff8100eb79>] ? native_sched_clock+0x34/0x36
[ 272.667509] [<ffffffff810a95d5>] handle_irq_event_percpu+0x5f/0x198
[ 272.668492] [<ffffffff810a9746>] handle_irq_event+0x38/0x56
[ 272.669467] [<ffffffff81022e0e>] ? ack_apic_edge+0x25/0x29
[ 272.670445] [<ffffffff810ab71a>] handle_edge_irq+0x9d/0xc0
[ 272.671408] [<ffffffff8100ab9d>] handle_irq+0x88/0x8e
[ 272.672357] [<ffffffff8148409d>] do_IRQ+0x4d/0xa5
[ 272.673284] [<ffffffff8147c253>] common_interrupt+0x13/0x13
[ 272.674225] <EOI> [<ffffffff8100e6cd>] ? paravirt_read_tsc+0x9/0xd
[ 272.675166] [<ffffffff81275d67>] ? intel_idle+0xdb/0x100
[ 272.676098] [<ffffffff81275d46>] ? intel_idle+0xba/0x100
[ 272.677032] [<ffffffff8139b868>] cpuidle_idle_call+0xe7/0x166
[ 272.677951] [<ffffffff81008321>] cpu_idle+0xa5/0xdf
[ 272.678865] [<ffffffff8145a91e>] rest_init+0x72/0x74
[ 272.679770] [<ffffffff81b59b9f>] start_kernel+0x3de/0x3e9
[ 272.680685] [<ffffffff81b592c4>] x86_64_start_reservations+0xaf/0xb3
[ 272.681603] [<ffffffff81b59140>] ? early_idt_handlers+0x140/0x140
[ 272.682526] [<ffffffff81b593ca>] x86_64_start_kernel+0x102/0x111
[ 272.683442] NMI backtrace for cpu 3
[ 272.684688] CPU 3
[ 272.684705] Modules linked in: netconsole configfs cpufreq_ondemand acpi_cpufreq freq_table mperf snd_hda_codec_hdmi snd_hda_codec_conexant arc4 snd_hda_intel snd_hda_codec snd_hwdep iwlagn snd_seq snd_seq_device uvcvideo mac80211 e1000e btusb videodev snd_pcm v4l2_compat_ioctl32 snd_timer bluetooth i2c_i801 snd cfg80211 microcode iTCO_wdt xhci_hcd iTCO_vendor_support wmi pcspkr joydev soundcore snd_page_alloc rfkill uinput ipv6 sdhci_pci sdhci mmc_core i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
[ 272.690650]
[ 272.692143] Pid: 0, comm: kworker/0:1 Not tainted 2.6.39-rc4+ #1 LENOVO 4170CTO/4170CTO
[ 272.693726] RIP: 0010:[<ffffffff81275d36>] [<ffffffff81275d36>] intel_idle+0xaa/0x100
[ 272.695312] RSP: 0018:ffff8800715dfe68 EFLAGS: 00000046
[ 272.696892] RAX: 0000000000000030 RBX: 0000000000000010 RCX: 0000000000000001
[ 272.698508] RDX: 0000000000000000 RSI: ffff8800715dffd8 RDI: ffffffff81a0e640
[ 272.700117] RBP: ffff8800715dfeb8 R08: 000000000000006d R09: 00000000000003e4
[ 272.701740] R10: ffffffff00000003 R11: ffff8801002d3b40 R12: 0000000000000030
[ 272.703369] R13: 12187a34a107edc5 R14: 0000000000000004 R15: 0000000000000003
[ 272.704985] FS: 0000000000000000(0000) GS:ffff8801002c0000(0000) knlGS:0000000000000000
[ 272.706626] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 272.708277] CR2: 00000037d904c480 CR3: 0000000001a03000 CR4: 00000000000406e0
[ 272.709952] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 272.711633] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 272.713299] Process kworker/0:1 (pid: 0, threadinfo ffff8800715de000, task ffff8800715e1700)
[ 272.715001] Stack:
[ 272.716681] ffff8800715dfe88 ffffffff810731c0 ffff8801002d1290 0000000000011290
[ 272.718411] ffff8800715dfeb8 000000038139c97a ffffe8ffffcc0170 ffffe8ffffcc0170
[ 272.720153] ffffe8ffffcc0300 0000000000000000 ffff8800715dfef8 ffffffff8139b868
[ 272.721848] Call Trace:
[ 272.723465] [<ffffffff810731c0>] ? pm_qos_request+0x3e/0x45
[ 272.725095] [<ffffffff8139b868>] cpuidle_idle_call+0xe7/0x166
[ 272.726712] [<ffffffff81008321>] cpu_idle+0xa5/0xdf
[ 272.728304] [<ffffffff8146ae57>] start_secondary+0x223/0x225
[ 272.729891] Code: 28 e0 ff ff 80 e2 08 75 22 31 d2 48 83 c0 10 48 89 d1 0f 01 c8 0f ae f0 48 8b 86 38 e0 ff ff a8 08 75 08 b1 01 4c 89 e0 0f 01 c9 <e8> 23 09 e0 ff 4c 29 e8 48 89 c7 e8 ab 29 de ff 4c 69 e0 40 42
[ 272.733594] Call Trace:
[ 272.735317] [<ffffffff810731c0>] ? pm_qos_request+0x3e/0x45
[ 272.737068] [<ffffffff8139b868>] cpuidle_idle_call+0xe7/0x166
[ 272.738815] [<ffffffff81008321>] cpu_idle+0xa5/0xdf
[ 272.740554] [<ffffffff8146ae57>] start_secondary+0x223/0x225
[ 274.865072] SysRq : Show Blocked State
[ 274.866350] task PC stack pid father
[ 274.867634] jbd2/dm-1-8 D 0000000000000000 0 363 2 0x00000000
[ 274.868930] ffff880037d05ba0 0000000000000046 ffff880037d05b30 ffffffff00000000
[ 274.870242] ffff880037acc500 ffff880037d05fd8 ffff880037d05fd8 0000000000013b40
[ 274.871555] ffffffff81a0b020 ffff880037acc500 ffff8801002143c0 00000001005bd1d0
[ 274.872869] Call Trace:
[ 274.874168] [<ffffffff81142202>] ? wait_on_buffer+0x3a/0x3a
[ 274.875485] [<ffffffff81142202>] ? wait_on_buffer+0x3a/0x3a
[ 274.876791] [<ffffffff8147a7c9>] io_schedule+0x63/0x7e
[ 274.878089] [<ffffffff81142210>] sleep_on_buffer+0xe/0x12
[ 274.879382] [<ffffffff8147aea9>] __wait_on_bit+0x48/0x7b
[ 274.880684] [<ffffffff8147af4e>] out_of_line_wait_on_bit+0x72/0x7d
[ 274.881986] [<ffffffff81142202>] ? wait_on_buffer+0x3a/0x3a
[ 274.883290] [<ffffffff8106e88b>] ? autoremove_wake_function+0x3d/0x3d
[ 274.884601] [<ffffffff811421c6>] __wait_on_buffer+0x26/0x28
[ 274.885912] [<ffffffff811c8a3c>] wait_on_buffer+0x35/0x39
[ 274.887221] [<ffffffff811c9633>] jbd2_journal_commit_transaction+0xab3/0x1194
[ 274.888547] [<ffffffff81008714>] ? __switch_to+0xc6/0x220
[ 274.889864] [<ffffffff81080be3>] ? arch_local_irq_save+0x15/0x1b
[ 274.891178] [<ffffffff8147be3a>] ? _raw_spin_lock_irqsave+0x12/0x2f
[ 274.892500] [<ffffffff8105ffef>] ? lock_timer_base+0x2c/0x52
[ 274.893776] [<ffffffff811cd3b6>] kjournald2+0xc9/0x20a
[ 274.895001] [<ffffffff8106e84e>] ? remove_wait_queue+0x3a/0x3a
[ 274.896179] [<ffffffff811cd2ed>] ? commit_timeout+0x10/0x10
[ 274.897328] [<ffffffff8106e157>] kthread+0x84/0x8c
[ 274.898465] [<ffffffff81483764>] kernel_thread_helper+0x4/0x10
[ 274.899591] [<ffffffff8106e0d3>] ? kthread_worker_fn+0x148/0x148
[ 274.900708] [<ffffffff81483760>] ? gs_change+0x13/0x13
[ 274.901813] flush-253:1 D 0000000000000000 0 419 2 0x00000000
[ 274.902938] ffff8800706bf760 0000000000000046 ffff8800706bf6f0 ffffffff00000000
[ 274.904067] ffff880037afc500 ffff8800706bffd8 ffff8800706bffd8 0000000000013b40
[ 274.905198] ffffffff81a0b020 ffff880037afc500 ffff8800706bf720 00000001706bf720
[ 274.906327] Call Trace:
[ 274.907430] [<ffffffff8147a7c9>] io_schedule+0x63/0x7e
[ 274.908536] [<ffffffff81217b00>] get_request_wait+0x102/0x18b
[ 274.909633] [<ffffffff8106e84e>] ? remove_wait_queue+0x3a/0x3a
[ 274.910729] [<ffffffff81218841>] __make_request+0x18a/0x2b8
[ 274.911826] [<ffffffff81217538>] generic_make_request+0x2a9/0x323
[ 274.912908] [<ffffffff810d79c9>] ? mempool_alloc_slab+0x15/0x17
[ 274.913979] [<ffffffff81217690>] submit_bio+0xde/0xfd
[ 274.915040] [<ffffffff81145fc0>] ? bio_alloc_bioset+0x4c/0xc3
[ 274.916104] [<ffffffff810ea6e1>] ? inc_zone_page_state+0x27/0x29
[ 274.917161] [<ffffffff81141c42>] submit_bh+0xe6/0x105
[ 274.918208] [<ffffffff8114317e>] __block_write_full_page+0x1e7/0x2d7
[ 274.919261] [<ffffffff81147540>] ? thaw_bdev+0x79/0x79
[ 274.920306] [<ffffffff81144967>] ? bit_spin_lock.constprop.20+0x2c/0x2c
[ 274.921361] [<ffffffff81144967>] ? bit_spin_lock.constprop.20+0x2c/0x2c
[ 274.922411] [<ffffffff81147540>] ? thaw_bdev+0x79/0x79
[ 274.923396] [<ffffffff81144851>] block_write_full_page_endio+0x8a/0x97
[ 274.924324] [<ffffffff81144873>] block_write_full_page+0x15/0x17
[ 274.925248] [<ffffffff81147297>] blkdev_writepage+0x18/0x1a
[ 274.926168] [<ffffffff810dd3c1>] __writepage+0x15/0x2e
[ 274.927083] [<ffffffff810dd1fc>] write_cache_pages+0x209/0x330
[ 274.928001] [<ffffffff810dd3ac>] ? set_page_dirty_lock+0x33/0x33
[ 274.928923] [<ffffffff8104e4c1>] ? find_busiest_group+0x253/0x8b9
[ 274.929834] [<ffffffff81198ba9>] ? ext4_da_writepages+0x85/0x44d
[ 274.930744] [<ffffffff810dd363>] generic_writepages+0x40/0x56
[ 274.931646] [<ffffffff810ddeb4>] do_writepages+0x21/0x2a
[ 274.932536] [<ffffffff8113cbb7>] writeback_single_inode+0xb2/0x1bc
[ 274.933430] [<ffffffff8113cf03>] writeback_sb_inodes+0xcd/0x161
[ 274.934317] [<ffffffff8113d407>] writeback_inodes_wb+0x119/0x12b
[ 274.935194] [<ffffffff8113d607>] wb_writeback+0x1ee/0x335
[ 274.936061] [<ffffffff81045c65>] ? hrtick_update+0x32/0x34
[ 274.936941] [<ffffffff810dd79a>] ? global_dirty_limits+0x2b/0xd1
[ 274.936943] [<ffffffff8113d8cd>] wb_do_writeback+0x17f/0x19d
[ 274.936945] [<ffffffff8113d973>] bdi_writeback_thread+0x88/0x1e5
[ 274.936947] [<ffffffff8113d8eb>] ? wb_do_writeback+0x19d/0x19d
[ 274.936949] [<ffffffff8106e157>] kthread+0x84/0x8c
[ 274.936951] [<ffffffff81483764>] kernel_thread_helper+0x4/0x10
[ 274.936953] [<ffffffff8106e0d3>] ? kthread_worker_fn+0x148/0x148
[ 274.936956] [<ffffffff81483760>] ? gs_change+0x13/0x13
[ 274.936958] jbd2/dm-2-8 D ffff88006e17c700 0 787 2 0x00000000
[ 274.936960] ffff88006ffe5cd0 0000000000000046 0000000000000000 0000000000000000
[ 274.936962] ffff88006f0e0000 ffff88006ffe5fd8 ffff88006ffe5fd8 0000000000013b40
[ 274.936964] ffff8800715fc500 ffff88006f0e0000 ffff88006ffe5cd0 ffffffff8106e7c3
[ 274.936966] Call Trace:
[ 274.936968] [<ffffffff8106e7c3>] ? prepare_to_wait+0x6c/0x78
[ 274.936970] [<ffffffff811c8d44>] jbd2_journal_commit_transaction+0x1c4/0x1194
[ 274.936972] [<ffffffff8104480b>] ? perf_event_task_sched_out+0x55/0x61
[ 274.936974] [<ffffffff8100eb84>] ? sched_clock+0x9/0xd
[ 274.936977] [<ffffffff810736dc>] ? sched_clock_cpu+0x42/0xc6
[ 274.936979] [<ffffffff8100804e>] ? load_TLS+0x10/0x14
[ 274.936981] [<ffffffff81008714>] ? __switch_to+0xc6/0x220
[ 274.936983] [<ffffffff8106e84e>] ? remove_wait_queue+0x3a/0x3a
[ 274.936985] [<ffffffff8105ffef>] ? lock_timer_base+0x2c/0x52
[ 274.936987] [<ffffffff8147be8c>] ? _raw_spin_unlock_irqrestore+0x17/0x19
[ 274.936989] [<ffffffff81060088>] ? try_to_del_timer_sync+0x73/0x81
[ 274.936991] [<ffffffff811cd3b6>] kjournald2+0xc9/0x20a
[ 274.936993] [<ffffffff8106e84e>] ? remove_wait_queue+0x3a/0x3a
[ 274.936995] [<ffffffff811cd2ed>] ? commit_timeout+0x10/0x10
[ 274.936997] [<ffffffff8106e157>] kthread+0x84/0x8c
[ 274.936998] [<ffffffff81483764>] kernel_thread_helper+0x4/0x10
[ 274.937001] [<ffffffff8106e0d3>] ? kthread_worker_fn+0x148/0x148
[ 274.937003] [<ffffffff81483760>] ? gs_change+0x13/0x13
[ 274.937004] flush-253:2 D ffff88006d5a0000 0 851 2 0x00000000
[ 274.937006] ffff88006e45d760 0000000000000046 ffff880037a30000 0000000000000246
[ 274.937008] ffff88006d5a0000 ffff88006e45dfd8 ffff88006e45dfd8 0000000000013b40
[ 274.937010] ffff880071588000 ffff88006d5a0000 ffff88006e45d720 ffff88006e45d720
[ 274.937011] Call Trace:
[ 274.937013] [<ffffffff8147a7c9>] io_schedule+0x63/0x7e
[ 274.937015] [<ffffffff81217b00>] get_request_wait+0x102/0x18b
[ 274.937017] [<ffffffff8106e84e>] ? remove_wait_queue+0x3a/0x3a
[ 274.937019] [<ffffffff81218841>] __make_request+0x18a/0x2b8
[ 274.937020] [<ffffffff81217538>] generic_make_request+0x2a9/0x323
[ 274.937022] [<ffffffff810d79c9>] ? mempool_alloc_slab+0x15/0x17
[ 274.937024] [<ffffffff81217690>] submit_bio+0xde/0xfd
[ 274.937026] [<ffffffff81145fc0>] ? bio_alloc_bioset+0x4c/0xc3
[ 274.937028] [<ffffffff810ea6e1>] ? inc_zone_page_state+0x27/0x29
[ 274.937030] [<ffffffff81141c42>] submit_bh+0xe6/0x105
[ 274.937031] [<ffffffff8114317e>] __block_write_full_page+0x1e7/0x2d7
[ 274.937033] [<ffffffff81147540>] ? thaw_bdev+0x79/0x79
[ 274.937035] [<ffffffff81144967>] ? bit_spin_lock.constprop.20+0x2c/0x2c
[ 274.937037] [<ffffffff81144967>] ? bit_spin_lock.constprop.20+0x2c/0x2c
[ 274.937039] [<ffffffff81147540>] ? thaw_bdev+0x79/0x79
[ 274.937040] [<ffffffff81144851>] block_write_full_page_endio+0x8a/0x97
[ 274.937042] [<ffffffff81144873>] block_write_full_page+0x15/0x17
[ 274.937044] [<ffffffff81147297>] blkdev_writepage+0x18/0x1a
[ 274.937046] [<ffffffff810dd3c1>] __writepage+0x15/0x2e
[ 274.937048] [<ffffffff810dd1fc>] write_cache_pages+0x209/0x330
[ 274.937049] [<ffffffff810dd3ac>] ? set_page_dirty_lock+0x33/0x33
[ 274.937052] [<ffffffff810dd363>] generic_writepages+0x40/0x56
[ 274.937054] [<ffffffff810ddeb4>] do_writepages+0x21/0x2a
[ 274.937055] [<ffffffff8113cbb7>] writeback_single_inode+0xb2/0x1bc
[ 274.937057] [<ffffffff8113cf03>] writeback_sb_inodes+0xcd/0x161
[ 274.937059] [<ffffffff8113d407>] writeback_inodes_wb+0x119/0x12b
[ 274.937061] [<ffffffff8113d607>] wb_writeback+0x1ee/0x335
[ 274.937063] [<ffffffff81080be3>] ? arch_local_irq_save+0x15/0x1b
[ 274.937065] [<ffffffff8147be3a>] ? _raw_spin_lock_irqsave+0x12/0x2f
[ 274.937067] [<ffffffff8113d891>] wb_do_writeback+0x143/0x19d
[ 274.937069] [<ffffffff8147acc7>] ? schedule_timeout+0xb0/0xde
[ 274.937071] [<ffffffff8113d973>] bdi_writeback_thread+0x88/0x1e5
[ 274.937073] [<ffffffff8113d8eb>] ? wb_do_writeback+0x19d/0x19d
[ 274.937075] [<ffffffff8106e157>] kthread+0x84/0x8c
[ 274.937077] [<ffffffff81483764>] kernel_thread_helper+0x4/0x10
[ 274.937079] [<ffffffff8106e0d3>] ? kthread_worker_fn+0x148/0x148
[ 274.937081] [<ffffffff81483760>] ? gs_change+0x13/0x13
[ 274.937082] tar D 0000000000000000 0 980 826 0x00000000
[ 274.937084] ffff88006f19f9e8 0000000000000086 00000000ffff9fd7 0000000000000000
[ 274.937086] ffff88006d670000 ffff88006f19ffd8 ffff88006f19ffd8 0000000000013b40
[ 274.937088] ffffffff81a0b020 ffff88006d670000 ffff88006f19f9b8 0000000100000282
[ 274.937090] Call Trace:
[ 274.937091] [<ffffffff8147acbe>] schedule_timeout+0xa7/0xde
[ 274.937093] [<ffffffff8106015c>] ? del_timer+0x7a/0x7a
[ 274.937095] [<ffffffff8147abc2>] io_schedule_timeout+0x6f/0x98
[ 274.937097] [<ffffffff810ddc26>] balance_dirty_pages_ratelimited_nr+0x341/0x3b6
[ 274.937100] [<ffffffff810d5efb>] generic_file_buffered_write+0x1dc/0x23a
[ 274.937102] [<ffffffff810d6c9d>] __generic_file_aio_write+0x242/0x272
[ 274.937105] [<ffffffff810d6d2e>] generic_file_aio_write+0x61/0xba
[ 274.937108] [<ffffffff8118fe00>] ext4_file_write+0x1dc/0x234
[ 274.937111] [<ffffffff8111edab>] do_sync_write+0xbf/0xff
[ 274.937112] [<ffffffff8114b9fc>] ? fsnotify+0x1eb/0x217
[ 274.937115] [<ffffffff811f1866>] ? selinux_file_permission+0x58/0xb4
[ 274.937118] [<ffffffff811e9cfe>] ? security_file_permission+0x2e/0x33
[ 274.937120] [<ffffffff8111f196>] ? rw_verify_area+0xb0/0xcd
[ 274.937122] [<ffffffff8111f421>] vfs_write+0xac/0xf3
[ 274.937123] [<ffffffff8111f610>] sys_write+0x4a/0x6e
[ 274.937126] [<ffffffff81482642>] system_call_fastpath+0x16/0x1b
[ 274.937128] make D 0000000000000000 0 2252 2143 0x00000004
[ 274.937130] ffff88006d631948 0000000000000082 ffff88006d6318d8 ffffffff00000000
[ 274.937132] ffff880037d9dc00 ffff88006d631fd8 ffff88006d631fd8 0000000000013b40
[ 274.937133] ffffffff81a0b020 ffff880037d9dc00 ffff88006d631908 000000016d631908
[ 274.937135] Call Trace:
[ 274.937137] [<ffffffff81142202>] ? wait_on_buffer+0x3a/0x3a
[ 274.937139] [<ffffffff8147a7c9>] io_schedule+0x63/0x7e
[ 274.937140] [<ffffffff81142210>] sleep_on_buffer+0xe/0x12
[ 274.937142] [<ffffffff8147ad9b>] __wait_on_bit_lock+0x46/0x8f
[ 274.937144] [<ffffffff8147ae56>] out_of_line_wait_on_bit_lock+0x72/0x7d
[ 274.937146] [<ffffffff81142202>] ? wait_on_buffer+0x3a/0x3a
[ 274.937148] [<ffffffff8106e88b>] ? autoremove_wake_function+0x3d/0x3d
[ 274.937149] [<ffffffff8114240b>] __lock_buffer+0x38/0x3c
[ 274.937151] [<ffffffff811c6ce9>] lock_buffer+0x39/0x3d
[ 274.937153] [<ffffffff811c8162>] do_get_write_access+0x70/0x38d
[ 274.937155] [<ffffffff811927b4>] ? __ext4_get_inode_loc+0x118/0x36d
[ 274.937156] [<ffffffff811991cc>] ? ext4_dirty_inode+0x33/0x4c
[ 274.937158] [<ffffffff811c8588>] jbd2_journal_get_write_access+0x2b/0x42
[ 274.937161] [<ffffffff811b5888>] __ext4_journal_get_write_access+0x58/0x66
[ 274.937163] [<ffffffff81195526>] ext4_reserve_inode_write+0x41/0x83
[ 274.937165] [<ffffffff811955e4>] ext4_mark_inode_dirty+0x7c/0x1f0
[ 274.937167] [<ffffffff8147c515>] ? page_fault+0x25/0x30
[ 274.937169] [<ffffffff811991cc>] ext4_dirty_inode+0x33/0x4c
[ 274.937171] [<ffffffff8113c3d6>] __mark_inode_dirty+0x2f/0x175
[ 274.937173] [<ffffffff811322c7>] touch_atime+0x10e/0x131
[ 274.937176] [<ffffffff810d7360>] generic_file_aio_read+0x5d9/0x640
[ 274.937178] [<ffffffff8111eeaa>] do_sync_read+0xbf/0xff
[ 274.937180] [<ffffffff811e9cfe>] ? security_file_permission+0x2e/0x33
[ 274.937181] [<ffffffff8111f196>] ? rw_verify_area+0xb0/0xcd
[ 274.937183] [<ffffffff8111f511>] vfs_read+0xa9/0xf0
[ 274.937185] [<ffffffff8111f5a2>] sys_read+0x4a/0x6e
[ 274.937187] [<ffffffff81482642>] system_call_fastpath+0x16/0x1b
[ 274.937188] make D 0000000000000000 0 2262 2254 0x00000004
[ 274.937190] ffff880070b2b948 0000000000000082 ffff880070b2b8d8 ffffffff00000000
[ 274.937192] ffff88006d428000 ffff880070b2bfd8 ffff880070b2bfd8 0000000000013b40
[ 274.937194] ffffffff81a0b020 ffff88006d428000 ffff880070b2b908 0000000170b2b908
[ 274.937195] Call Trace:
[ 274.937197] [<ffffffff81142202>] ? wait_on_buffer+0x3a/0x3a
[ 274.937199] [<ffffffff8147a7c9>] io_schedule+0x63/0x7e
[ 274.937200] [<ffffffff81142210>] sleep_on_buffer+0xe/0x12
[ 274.937202] [<ffffffff8147ad9b>] __wait_on_bit_lock+0x46/0x8f
[ 274.937204] [<ffffffff8147ae56>] out_of_line_wait_on_bit_lock+0x72/0x7d
[ 274.937205] [<ffffffff81142202>] ? wait_on_buffer+0x3a/0x3a
[ 274.937208] [<ffffffff8106e88b>] ? autoremove_wake_function+0x3d/0x3d
[ 274.937209] [<ffffffff8114240b>] __lock_buffer+0x38/0x3c
[ 274.937211] [<ffffffff811c6ce9>] lock_buffer+0x39/0x3d
[ 274.937212] [<ffffffff811c8162>] do_get_write_access+0x70/0x38d
[ 274.937214] [<ffffffff811927b4>] ? __ext4_get_inode_loc+0x118/0x36d
[ 274.937216] [<ffffffff811991cc>] ? ext4_dirty_inode+0x33/0x4c
[ 274.937217] [<ffffffff811c8588>] jbd2_journal_get_write_access+0x2b/0x42
[ 274.937219] [<ffffffff811b5888>] __ext4_journal_get_write_access+0x58/0x66
[ 274.937221] [<ffffffff81195526>] ext4_reserve_inode_write+0x41/0x83
[ 274.937223] [<ffffffff811955e4>] ext4_mark_inode_dirty+0x7c/0x1f0
[ 274.937225] [<ffffffff8147c515>] ? page_fault+0x25/0x30
[ 274.937227] [<ffffffff811991cc>] ext4_dirty_inode+0x33/0x4c
[ 274.937228] [<ffffffff8113c3d6>] __mark_inode_dirty+0x2f/0x175
[ 274.937230] [<ffffffff811322c7>] touch_atime+0x10e/0x131
[ 274.937232] [<ffffffff810d7360>] generic_file_aio_read+0x5d9/0x640
[ 274.937234] [<ffffffff8111eeaa>] do_sync_read+0xbf/0xff
[ 274.937236] [<ffffffff811e9cfe>] ? security_file_permission+0x2e/0x33
[ 274.937238] [<ffffffff8111f196>] ? rw_verify_area+0xb0/0xcd
[ 274.937240] [<ffffffff8111f511>] vfs_read+0xa9/0xf0
[ 274.937241] [<ffffffff8111f5a2>] sys_read+0x4a/0x6e
[ 274.937243] [<ffffffff81482642>] system_call_fastpath+0x16/0x1b
[ 274.937244] sh D 0000000000000000 0 2270 2253 0x00000004
[ 274.937246] ffff8800709fd918 0000000000000086 ffff8800709fd8a8 ffffffff00000000
[ 274.937248] ffff880037f60000 ffff8800709fdfd8 ffff8800709fdfd8 0000000000013b40
[ 274.937250] ffff880071589700 ffff880037f60000 ffff8801002543c0 00000001005b89d0
[ 274.937252] Call Trace:
[ 274.937253] [<ffffffff81142202>] ? wait_on_buffer+0x3a/0x3a
[ 274.937255] [<ffffffff8147a7c9>] io_schedule+0x63/0x7e
[ 274.937256] [<ffffffff81142210>] sleep_on_buffer+0xe/0x12
[ 274.937258] [<ffffffff8147ad9b>] __wait_on_bit_lock+0x46/0x8f
[ 274.937260] [<ffffffff8147ae56>] out_of_line_wait_on_bit_lock+0x72/0x7d
[ 274.937261] [<ffffffff81142202>] ? wait_on_buffer+0x3a/0x3a
[ 274.937264] [<ffffffff8106e88b>] ? autoremove_wake_function+0x3d/0x3d
[ 274.937265] [<ffffffff8114240b>] __lock_buffer+0x38/0x3c
[ 274.937267] [<ffffffff811c6ce9>] lock_buffer+0x39/0x3d
[ 274.937268] [<ffffffff811c8162>] do_get_write_access+0x70/0x38d
[ 274.937270] [<ffffffff81196fe4>] ? ext4_getblk+0x8e/0x153
[ 274.937272] [<ffffffff811c8588>] jbd2_journal_get_write_access+0x2b/0x42
[ 274.937274] [<ffffffff811b5888>] __ext4_journal_get_write_access+0x58/0x66
[ 274.937276] [<ffffffff8119c0ce>] ext4_add_entry+0x11f/0x8cf
[ 274.937277] [<ffffffff811429f3>] ? __brelse+0x15/0x33
[ 274.937280] [<ffffffff81191bac>] ? ext4_new_inode+0xc63/0xd0a
[ 274.937282] [<ffffffff8119c89c>] ext4_add_nondir+0x1e/0x67
[ 274.937283] [<ffffffff8119cb1b>] ext4_create+0xf5/0x13e
[ 274.937286] [<ffffffff81129b12>] vfs_create+0x6c/0x8e
[ 274.937288] [<ffffffff81129dad>] do_last+0x279/0x5ab
[ 274.937289] [<ffffffff8112ac73>] path_openat+0xc8/0x31c
[ 274.937291] [<ffffffff810f2332>] ? handle_mm_fault+0x1ac/0x1bf
[ 274.937293] [<ffffffff8112aeff>] do_filp_open+0x38/0x86
[ 274.937295] [<ffffffff81233de1>] ? might_fault+0x21/0x23
[ 274.937298] [<ffffffff8113477b>] ? alloc_fd+0x72/0x11d
[ 274.937299] [<ffffffff8111e995>] do_sys_open+0x6e/0x100
[ 274.937301] [<ffffffff8111ea47>] sys_open+0x20/0x22
[ 274.937303] [<ffffffff81482642>] system_call_fastpath+0x16/0x1b
[ 274.937304] gcc D 0000000000000000 0 2272 2271 0x00000004
[ 274.937306] ffff88006f197c58 0000000000000086 ffff88006f197d14 0000000000000000
[ 274.937307] ffff880037f64500 ffff88006f197fd8 ffff88006f197fd8 0000000000013b40
[ 274.937309] ffffffff81a0b020 ffff880037f64500 ffff88006f197c58 000000018106e7c3
[ 274.937311] Call Trace:
[ 274.937313] [<ffffffff811c6fd5>] start_this_handle+0x2e8/0x465
[ 274.937315] [<ffffffff8106e84e>] ? remove_wait_queue+0x3a/0x3a
[ 274.937317] [<ffffffff811c7418>] jbd2__journal_start+0x94/0xda
[ 274.937318] [<ffffffff811c7471>] jbd2_journal_start+0x13/0x15
[ 274.937320] [<ffffffff811ab92a>] ext4_journal_start_sb+0x108/0x120
[ 274.937323] [<ffffffff8119cc24>] ext4_symlink+0xc0/0x212
[ 274.937325] [<ffffffff81129928>] vfs_symlink+0x54/0x74
[ 274.937326] [<ffffffff8112b40a>] sys_symlinkat+0x96/0xef
[ 274.937329] [<ffffffff81122d89>] ? sys_newstat+0x2a/0x33
[ 274.937330] [<ffffffff8112b479>] sys_symlink+0x16/0x18
[ 274.937332] [<ffffffff81482642>] system_call_fastpath+0x16/0x1b
[ 274.937335] Sched Debug Version: v0.10, 2.6.39-rc4+ #1
[ 274.937336] ktime : 275382.978028
[ 274.937337] sched_clk : 274937.334155
[ 274.937338] cpu_clk : 274937.334189
[ 274.937339] jiffies : 4294942678
[ 274.937340] sched_clock_stable : 1
[ 274.937341]
[ 274.937342] sysctl_sched
[ 274.937342] .sysctl_sched_latency : 18.000000
[ 274.937344] .sysctl_sched_min_granularity : 2.250000
[ 274.937345] .sysctl_sched_wakeup_granularity : 3.000000
[ 274.937346] .sysctl_sched_child_runs_first : 0
[ 274.937347] .sysctl_sched_features : 7279
[ 274.937348] .sysctl_sched_tunable_scaling : 1 (logaritmic)
[ 274.937349]
[ 274.937350] cpu#0, 2492.220 MHz
[ 274.937350] .nr_running : 0
[ 274.937351] .load : 0
[ 274.937352] .nr_switches : 105039
[ 274.937353] .nr_load_updates : 121182
[ 274.937354] .nr_uninterruptible : 8
[ 274.937355] .next_balance : 4294.942607
[ 274.937356] .curr->pid : 0
[ 274.937357] .clock : 274864.523786
[ 274.937359] .cpu_load[0] : 0
[ 274.937360] .cpu_load[1] : 0
[ 274.937361] .cpu_load[2] : 0
[ 274.937362] .cpu_load[3] : 0
[ 274.937363] .cpu_load[4] : 0
[ 274.937364] .yld_count : 0
[ 274.937364] .sched_switch : 0
[ 274.937365] .sched_count : 107487
[ 274.937366] .sched_goidle : 43368
[ 274.937367] .avg_idle : 1000000
[ 274.937368] .ttwu_count : 56534
[ 274.937369] .ttwu_local : 53925
[ 274.937370] .bkl_count : 0
[ 274.937371]
[ 274.937372] cfs_rq[0]:/system
[ 274.937372] .exec_clock : 5906.036519
[ 274.937374] .MIN_vruntime : 0.000001
[ 274.937375] .min_vruntime : 7138.254657
[ 274.937376] .max_vruntime : 0.000001
[ 274.937377] .spread : 0.000000
[ 274.937378] .spread0 : -14302.149798
[ 274.937379] .nr_spread_over : 0
[ 274.937379] .nr_running : 0
[ 274.937380] .load : 0
[ 274.937381] .load_avg : 159.999997
[ 274.937382] .load_period : 5.496191
[ 274.937383] .load_contrib : 29
[ 274.937384] .load_tg : 29
[ 274.937385] .se->exec_start : 272446.423795
[ 274.937386] .se->vruntime : 21431.398168
[ 274.937387] .se->sum_exec_runtime : 5906.111805
[ 274.937388] .se->statistics.wait_start : 0.000000
[ 274.937389] .se->statistics.sleep_start : 0.000000
[ 274.937390] .se->statistics.block_start : 0.000000
[ 274.937391] .se->statistics.sleep_max : 0.000000
[ 274.937392] .se->statistics.block_max : 0.000000
[ 274.937393] .se->statistics.exec_max : 15.266617
[ 274.937394] .se->statistics.slice_max : 5.258344
[ 274.937395] .se->statistics.wait_max : 7.305679
[ 274.937396] .se->statistics.wait_sum : 190.506686
[ 274.937397] .se->statistics.wait_count : 18946
[ 274.937398] .se->load.weight : 2
[ 274.937399]
[ 274.937399] cfs_rq[0]:/
[ 274.937400] .exec_clock : 17409.691339
[ 274.937401] .MIN_vruntime : 0.000001
[ 274.937402] .min_vruntime : 21440.404455
[ 274.937403] .max_vruntime : 0.000001
[ 274.937403] .spread : 0.000000
[ 274.937404] .spread0 : 0.000000
[ 274.937405] .nr_spread_over : 58
[ 274.937406] .nr_running : 0
[ 274.937407] .load : 0
[ 274.937408] .load_avg : 0.000000
[ 274.937409] .load_period : 0.000000
[ 274.937409] .load_contrib : 0
[ 274.937410] .load_tg : 0
[ 274.937411]
[ 274.937412] cfs_rq[0]:/system/rescue.service
[ 274.937413] .exec_clock : 4319.868509
[ 274.937414] .MIN_vruntime : 0.000001
[ 274.937414] .min_vruntime : 4255.887524
[ 274.937415] .max_vruntime : 0.000001
[ 274.937416] .spread : 0.000000
[ 274.937417] .spread0 : -17184.516931
[ 274.937418] .nr_spread_over : 24
[ 274.937419] .nr_running : 0
[ 274.937420] .load : 0
[ 274.937421] .load_avg : 160.004112
[ 274.937421] .load_period : 5.496149
[ 274.937422] .load_contrib : 29
[ 274.937423] .load_tg : 29
[ 274.937424] .se->exec_start : 272446.423795
[ 274.937425] .se->vruntime : 7138.254657
[ 274.937426] .se->sum_exec_runtime : 4319.796162
[ 274.937427] .se->statistics.wait_start : 0.000000
[ 274.937428] .se->statistics.sleep_start : 0.000000
[ 274.937429] .se->statistics.block_start : 0.000000
[ 274.937430] .se->statistics.sleep_max : 0.000000
[ 274.937431] .se->statistics.block_max : 0.000000
[ 274.937432] .se->statistics.exec_max : 6.213083
[ 274.937432] .se->statistics.slice_max : 7.894226
[ 274.937433] .se->statistics.wait_max : 4.870567
[ 274.937434] .se->statistics.wait_sum : 91.737803
[ 274.937435] .se->statistics.wait_count : 15504
[ 274.937436] .se->load.weight : 2
[ 274.937437]
[ 274.937438] runnable tasks:
[ 274.937438] task PID tree-key switches prio exec-runtime sum-exec sum-sleep
[ 274.937439] ----------------------------------------------------------------------------------------------------------
[ 274.937444]
[ 274.937445] cpu#1, 2492.220 MHz
[ 274.937445] .nr_running : 0
[ 274.937446] .load : 0
[ 274.937447] .nr_switches : 35274
[ 274.937448] .nr_load_updates : 105259
[ 274.937449] .nr_uninterruptible : 1
[ 274.937449] .next_balance : 4294.942681
[ 274.937450] .curr->pid : 0
[ 274.937451] .clock : 274937.357922
[ 274.937452] .cpu_load[0] : 0
[ 274.937453] .cpu_load[1] : 0
[ 274.937454] .cpu_load[2] : 0
[ 274.937454] .cpu_load[3] : 0
[ 274.937455] .cpu_load[4] : 0
[ 274.937456] .yld_count : 0
[ 274.937457] .sched_switch : 0
[ 274.937458] .sched_count : 35560
[ 274.937458] .sched_goidle : 14561
[ 274.937459] .avg_idle : 1000000
[ 274.937460] .ttwu_count : 16938
[ 274.937461] .ttwu_local : 14491
[ 274.937462] .bkl_count : 0
[ 274.937463]
[ 274.937463] cfs_rq[1]:/
[ 274.937464] .exec_clock : 5221.725565
[ 274.937465] .MIN_vruntime : 0.000001
[ 274.937466] .min_vruntime : 9077.562937
[ 274.937466] .max_vruntime : 0.000001
[ 274.937467] .spread : 0.000000
[ 274.937468] .spread0 : -12362.841518
[ 274.937469] .nr_spread_over : 69
[ 274.937470] .nr_running : 0
[ 274.937471] .load : 0
[ 274.937472] .load_avg : 0.000000
[ 274.937473] .load_period : 0.000000
[ 274.937473] .load_contrib : 0
[ 274.937474] .load_tg : 0
[ 274.937475]
[ 274.937476] runnable tasks:
[ 274.937476] task PID tree-key switches prio exec-runtime sum-exec sum-sleep
[ 274.937477] ----------------------------------------------------------------------------------------------------------
[ 274.937481]
[ 274.937482] cpu#2, 2492.220 MHz
[ 274.937482] .nr_running : 4
[ 274.937483] .load : 2048
[ 274.937484] .nr_switches : 7092
[ 274.937485] .nr_load_updates : 100502
[ 274.937486] .nr_uninterruptible : 0
[ 274.937487] .next_balance : 4294.942806
[ 274.937487] .curr->pid : 46
[ 274.937488] .clock : 183206.600407
[ 274.937489] .cpu_load[0] : 2048
[ 274.937490] .cpu_load[1] : 2048
[ 274.937491] .cpu_load[2] : 2048
[ 274.937492] .cpu_load[3] : 2048
[ 274.937492] .cpu_load[4] : 2048
[ 274.937493] .yld_count : 0
[ 274.937494] .sched_switch : 0
[ 274.937495] .sched_count : 7323
[ 274.937496] .sched_goidle : 2831
[ 274.937496] .avg_idle : 1000000
[ 274.937497] .ttwu_count : 3275
[ 274.937498] .ttwu_local : 2028
[ 274.937499] .bkl_count : 0
[ 274.937500]
[ 274.937500] cfs_rq[2]:/
[ 274.937501] .exec_clock : 2187.192139
[ 274.937502] .MIN_vruntime : 5109.505143
[ 274.937503] .min_vruntime : 5118.505143
[ 274.937504] .max_vruntime : 5109.505143
[ 274.937505] .spread : 0.000000
[ 274.937506] .spread0 : -16321.899312
[ 274.937506] .nr_spread_over : 31
[ 274.937507] .nr_running : 2
[ 274.937508] .load : 2048
[ 274.937509] .load_avg : 0.000000
[ 274.937510] .load_period : 0.000000
[ 274.937511] .load_contrib : 0
[ 274.937511] .load_tg : 0
[ 274.937512]
[ 274.937513] rt_rq[2]:/
[ 274.937513] .rt_nr_running : 1
[ 274.937514] .rt_throttled : 0
[ 274.937515] .rt_time : 0.000000
[ 274.937516] .rt_runtime : 950.000000
[ 274.937517]
[ 274.937517] runnable tasks:
[ 274.937518] task PID tree-key switches prio exec-runtime sum-exec sum-sleep
[ 274.937519] ----------------------------------------------------------------------------------------------------------
[ 274.937520] migration/2 13 0.000000 113 0 0.000000 0.000815 0.000000 /
[ 274.937524] watchdog/2 16 0.000000 17 0 0.000000 1.785026 0.002124 /
[ 274.937527] R kswapd0 46 5118.505143 370 120 5118.505143 415.766870 181943.841718 /
[ 274.937531] kworker/2:1 76 5109.505143 1083 120 5109.505143 25.615305 181183.059001 /
[ 274.937535]
[ 274.937536] cpu#3, 2492.220 MHz
[ 274.937536] .nr_running : 1
[ 274.937537] .load : 1024
[ 274.937538] .nr_switches : 22324
[ 274.937539] .nr_load_updates : 59855
[ 274.937540] .nr_uninterruptible : 0
[ 274.937541] .next_balance : 4294.942679
[ 274.937542] .curr->pid : 73
[ 274.937543] .clock : 274936.938702
[ 274.937543] .cpu_load[0] : 0
[ 274.937544] .cpu_load[1] : 0
[ 274.937545] .cpu_load[2] : 0
[ 274.937546] .cpu_load[3] : 0
[ 274.937546] .cpu_load[4] : 0
[ 274.937547] .yld_count : 123
[ 274.937548] .sched_switch : 0
[ 274.937549] .sched_count : 22774
[ 274.937550] .sched_goidle : 9952
[ 274.937551] .avg_idle : 946660
[ 274.937551] .ttwu_count : 10075
[ 274.937552] .ttwu_local : 8964
[ 274.937553] .bkl_count : 0
[ 274.937554]
[ 274.937554] cfs_rq[3]:/
[ 274.937555] .exec_clock : 3244.912177
[ 274.937556] .MIN_vruntime : 0.000001
[ 274.937557] .min_vruntime : 7517.482154
[ 274.937558] .max_vruntime : 0.000001
[ 274.937559] .spread : 0.000000
[ 274.937559] .spread0 : -13922.922301
[ 274.937560] .nr_spread_over : 128
[ 274.937561] .nr_running : 1
[ 274.937562] .load : 1024
[ 274.937563] .load_avg : 0.000000
[ 274.937564] .load_period : 0.000000
[ 274.937565] .load_contrib : 0
[ 274.937565] .load_tg : 0
[ 274.937567]
[ 274.937567] runnable tasks:
[ 274.937567] task PID tree-key switches prio exec-runtime sum-exec sum-sleep
[ 274.937568] ----------------------------------------------------------------------------------------------------------
[ 274.937571] R kworker/3:1 73 7517.482154 7294 120 7517.482154 264.876541 272702.297840 /
[ 274.937575]
--
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