Hi Shuah,
ever since your patchset which implements suspend/resume
for em28xx, hibernating the system breaks the Hauppauge WinTV HVR 930C driver.
In v3.15.y and v3.16.y it throws a request_firmware warning
during hibernate + resume, and the /dev/dvb/ device nodes disappears after
resume. In current git v3.17-rc6-247-g005f800, it hangs
after resume. I bisected the hang in qemu to
b89193e0b06f "media: em28xx - remove reset_resume interface",
the hang is fixed if I revert this commit on top of v3.17-rc6-247-g005f800.
Regarding the request_firmware issue. I think a possible
fix would be:
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -2568,16 +2568,8 @@ int dvb_frontend_resume(struct dvb_frontend *fe)
dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num,
fe->id);
- fe->exit = DVB_FE_DEVICE_RESUME;
- if (fe->ops.init)
- ret = fe->ops.init(fe);
-
- if (fe->ops.tuner_ops.init)
- ret = fe->ops.tuner_ops.init(fe);
-
- fe->exit = DVB_FE_NO_EXIT;
fepriv->state = FESTATE_RETUNE;
- dvb_frontend_wakeup(fe);
+ dvb_frontend_reinitialise(fe);
return ret;
}
But of course this has the potential of breaking other drivers...
Below is a full log of the suspend + resume in qemu with
no_console_suspend.
Johannes
qemu command line:
qemu-system-x86_64 -enable-kvm -smp cpus=4 -m 1G -net nic,model=virtio -net user -hda debian-7.6.0.qcow2 -device usb-ehci,id=ehci -device usb-host,vendorid=0x2040,productid=0x1605,bus=ehci.0 -nographic -kernel ~/src/linux/linux/arch/x86/boot/bzImage -initrd initrd.img-3.16.0 -append "BOOT_IMAGE=/boot/vmlinuz-3.16.0 root=UUID=0ae480bd-5598-4e64-97d7-2c42f9fc181f ro console=ttyS0 no_console_suspend
root@debian:~# echo disk >/sys/power/state
[ 19.480127] PM: Syncing filesystems ... done.
[ 19.668347] Freezing user space processes ... (elapsed 0.001 seconds) done.
[ 19.671188] PM: Preallocating image memory... done (allocated 28094 pages)
[ 19.712341] PM: Allocated 112376 kbytes in 0.03 seconds (3745.86 MB/s)
[ 19.713514] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[ 19.717168] em2884 #0: Suspending extensions
[ 19.717966] em2884 #0: Suspending video extensionem2884 #0: Suspending DVB extension
[ 19.727558] em2884 #0: fe0 suspend 0[ 19.729164] PM: freeze of devices complete after 12.270 msecs
[ 19.730921] PM: late freeze of devices complete after 0.719 msecs
[ 19.733542] PM: noirq freeze of devices complete after 1.502 msecs
[ 19.734705] ACPI: Preparing to enter system sleep state S4
[ 19.735779] PM: Saving platform NVS memory
[ 19.736533] Disabling non-boot CPUs ...
[ 19.741134] smpboot: CPU 1 is now offline
[ 19.848207] smpboot: CPU 2 is now offline
[ 19.852923] smpboot: CPU 3 is now offline
[ 19.855558] PM: Creating hibernation image:
[ 19.856897] PM: Need to copy 27321 pages
[ 19.856897] PM: Hibernation image created (27321 pages copied)
[ 19.856897] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S0_] (20140724/hwxface-580)
[ 19.856897] PM: Restoring platform NVS memory
[ 19.856897] Enabling non-boot CPUs ...
[ 19.856897] x86: Booting SMP configuration:
[ 19.857612] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 19.890484] CPU1 is up
[ 19.891693] smpboot: Booting Node 0 Processor 2 APIC 0x2
[ 19.924539] CPU2 is up
[ 19.925693] smpboot: Booting Node 0 Processor 3 APIC 0x3
[ 19.958401] CPU3 is up
[ 19.961935] ACPI: Waking up from system sleep state S4
[ 19.963712] PM: noirq thaw of devices complete after 0.705 msecs
[ 19.965505] PM: early thaw of devices complete after 0.572 msecs
[ 19.967322] rtc_cmos 00:00: System wakeup disabled by ACPI
[ 20.003710] em2884 #0: Resuming extensions
[ 20.004481] em2884 #0: Resuming video extensionem2884 #0: Resuming DVB extension
[ 20.007581] ------------[ cut here ]------------
[ 20.008557] WARNING: CPU: 0 PID: 2061 at drivers/base/firmware_class.c:1124 _request_firmware+0x205/0x568()
[ 20.010348] Modules linked in:
[ 20.011001] CPU: 0 PID: 2061 Comm: kworker/u8:11 Not tainted 3.17.0-rc6+ #78
[ 20.012289] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014
[ 20.014149] Workqueue: events_unbound async_run_entry_fn
[ 20.015144] 0000000000000000 ffff88003c233a28 ffffffff814b5228 0000000000000000
[ 20.016551] ffff88003c233a60 ffffffff81032d75 ffffffff81320b03 00000000fffffff5
[ 20.018012] ffff88003cf10640 ffff88003c68be80 00000000ffffff00 ffff88003c233a70
[ 20.019410] Call Trace:
[ 20.019850] [<ffffffff814b5228>] dump_stack+0x4e/0x7a
[ 20.020890] [<ffffffff81032d75>] warn_slowpath_common+0x7a/0x93
[ 20.021976] [<ffffffff81320b03>] ? _request_firmware+0x205/0x568
[ 20.023079] [<ffffffff81032e32>] warn_slowpath_null+0x15/0x17
[ 20.024092] [<ffffffff81320b03>] _request_firmware+0x205/0x568
[ 20.025063] [<ffffffff813b4a3d>] ? i2c_unlock_adapter+0x2c/0x2f
[ 20.026051] [<ffffffff813b5890>] ? i2c_transfer+0x68/0x77
[ 20.026903] [<ffffffff81320e96>] request_firmware+0x30/0x42
[ 20.027766] [<ffffffff813ccc00>] xc_load_fw_and_init_tuner+0x5c/0x504
[ 20.028821] [<ffffffff8107329d>] ? vprintk_emit+0x48a/0x4ce
[ 20.029721] [<ffffffff813621da>] ? usb_dev_restore+0x10/0x10
[ 20.030687] [<ffffffff813621da>] ? usb_dev_restore+0x10/0x10
[ 20.031597] [<ffffffff813cd0e8>] xc5000_init+0x40/0x72
[ 20.032435] [<ffffffff8140ef4c>] dvb_frontend_resume+0x3d/0x6b
[ 20.033358] [<ffffffff8141b2d3>] em28xx_dvb_resume+0x4a/0x88
[ 20.034251] [<ffffffff81415871>] em28xx_resume_extension+0x4b/0x63
[ 20.035322] [<ffffffff81416d0f>] em28xx_usb_resume+0x15/0x1c
[ 20.036256] [<ffffffff8136e2a9>] usb_resume_interface.isra.6+0x9e/0xc1
[ 20.037324] [<ffffffff8136e542>] usb_resume_both+0xe3/0x103
[ 20.038245] [<ffffffff8136eec6>] usb_resume+0x16/0x5b
[ 20.039068] [<ffffffff813621e8>] usb_dev_thaw+0xe/0x10
[ 20.039870] [<ffffffff8131d71b>] dpm_run_callback+0x3f/0x76
[ 20.040767] [<ffffffff8131e34b>] device_resume+0x155/0x17f
[ 20.041637] [<ffffffff8131e38d>] async_resume+0x18/0x3e
[ 20.042472] [<ffffffff8104c526>] async_run_entry_fn+0x5c/0x106
[ 20.043389] [<ffffffff8104585c>] process_one_work+0x1d2/0x38a
[ 20.044309] [<ffffffff81062d20>] ? trace_hardirqs_off_caller+0x40/0xad
[ 20.045342] [<ffffffff810462f0>] worker_thread+0x1f6/0x2a3
[ 20.046204] [<ffffffff810460fa>] ? rescuer_thread+0x214/0x214
[ 20.047111] [<ffffffff81049c09>] kthread+0xc7/0xcf
[ 20.047870] [<ffffffff8125d4c9>] ? debug_smp_processor_id+0x17/0x19
[ 20.048872] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 20.049929] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 20.050846] [<ffffffff814c0dac>] ret_from_fork+0x7c/0xb0
[ 20.051668] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 20.052594] ---[ end trace 341a76dbbf738774 ]---
[ 20.053304] usb 1-1: firmware: dvb-fe-xc5000-1.6.114.fw will not be loaded
[ 20.054397] xc5000: Upload failed. (file not found?)
[ 20.055180] xc5000: Unable to initialise tuner
[ 20.055913] em2884 #0: fe0 resume -121
[ 20.126710] ata2.00: configured for MWDMA2
[ 20.127755] ata1.00: configured for MWDMA2
[ 20.150715] PM: thaw of devices complete after 184.135 msecs
[ 20.154370] PM: Using 3 thread(s) for compression.
[ 20.154370] PM: Compressing and saving image data (27375 pages)...
[ 20.156441] PM: Image saving progress: 0%
[ 20.210485] PM: Image saving progress: 10%
[ 20.239342] PM: Image saving progress: 20%
[ 20.271955] PM: Image saving progress: 30%
[ 20.317421] PM: Image saving progress: 40%
[ 20.387014] PM: Image saving progress: 50%
[ 20.441198] PM: Image saving progress: 60%
[ 20.484778] PM: Image saving progress: 70%
[ 20.515542] PM: Image saving progress: 80%
[ 20.567877] PM: Image saving progress: 90%
[ 20.633093] PM: Image saving progress: 100%
[ 20.645414] PM: Image saving done.
[ 20.646053] PM: Wrote 109500 kbytes in 0.48 seconds (228.12 MB/s)
[ 20.648376] PM: S|
[ 20.670678] em2884 #0: Suspending extensions
[ 20.671609] em2884 #0: Suspending video extension[ 20.671821] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[ 20.674728] em2884 #0: Suspending DVB extension
[ 20.682641] em2884 #0: fe0 suspend 0[ 21.153386] sd 0:0:0:0: [sda] Stopping disk
[ 21.155681] PM: hibernate of devices complete after 485.213 msecs
[ 21.158574] PM: late hibernate of devices complete after 1.078 msecs
[ 21.162488] PM: noirq hibernate of devices complete after 1.511 msecs
[ 21.164919] ACPI: Preparing to enter system sleep state S4
[ 21.166179] PM: Saving platform NVS memory
[ 21.167430] Disabling non-boot CPUs ...
[ 21.170629] smpboot: CPU 1 is now offline
[ 21.174669] smpboot: CPU 2 is now offline
[ 21.178254] smpboot: CPU 3 is now offline
$ ./run-qemu.sh
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 3.17.0-rc6+ (js@abc) (gcc version 4.9.1 (Debian 4.9.1-15) ) #78 SMP PREEMPT Thu Sep 25 14:13:36 CEST 2014
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.16.0 root=UUID=0ae480bd-5598-4e64-97d7-2c42f9fc181f ro console=ttyS0 no_console_suspend
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
[ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000003ffdffff] usable
[ 0.000000] BIOS-e820: [mem 0x000000003ffe0000-0x000000003fffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] SMBIOS 2.8 present.
[ 0.000000] e820: last_pfn = 0x3ffe0 max_arch_pfn = 0x400000000
[ 0.000000] PAT not supported by CPU.
[ 0.000000] found SMP MP-table at [mem 0x000f0e80-0x000f0e8f] mapped at [ffff8800000f0e80]
[ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff]
[ 0.000000] init_memory_mapping: [mem 0x3fc00000-0x3fdfffff]
[ 0.000000] init_memory_mapping: [mem 0x3c000000-0x3fbfffff]
[ 0.000000] init_memory_mapping: [mem 0x00100000-0x3bffffff]
[ 0.000000] init_memory_mapping: [mem 0x3fe00000-0x3ffdffff]
[ 0.000000] RAMDISK: [mem 0x3fe0f000-0x3ffdffff]
[ 0.000000] ACPI: Early table checksum verification disabled
[ 0.000000] ACPI: RSDP 0x00000000000F0BD0 000014 (v00 BOCHS )
[ 0.000000] ACPI: RSDT 0x000000003FFE1968 000034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: FACP 0x000000003FFE0B37 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001)
[ 0.000000] ACPI: DSDT 0x000000003FFE0040 000AF7 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: FACS 0x000000003FFE0000 000040
[ 0.000000] ACPI: SSDT 0x000000003FFE0BAB 000CF5 (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: APIC 0x000000003FFE18A0 000090 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001)
[ 0.000000] ACPI: HPET 0x000000003FFE1930 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001)
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x00001000-0x00ffffff]
[ 0.000000] DMA32 [mem 0x01000000-0xffffffff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x00001000-0x0009efff]
[ 0.000000] node 0: [mem 0x00100000-0x3ffdffff]
[ 0.000000] ACPI: PM-Timer IO Port: 0x608
[ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] enabled)
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0])
[ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[ 0.000000] smpboot: Allowing 4 CPUs, 0 hotplug CPUs
[ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff]
[ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff]
[ 0.000000] e820: [mem 0x40000000-0xfeffbfff] available for PCI devices
[ 0.000000] setup_percpu: NR_CPUS:16 nr_cpumask_bits:16 nr_cpu_ids:4 nr_node_ids:1
[ 0.000000] PERCPU: Embedded 476 pages/cpu @ffff88003e000000 s1917376 r8192 d24128 u2097152
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 258409
[ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.16.0 root=UUID=0ae480bd-5598-4e64-97d7-2c42f9fc181f ro console=ttyS0 no_console_suspend
[ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
[ 0.000000] Memory: 993136K/1048056K available (4877K kernel code, 872K rwdata, 2996K rodata, 2668K init, 15516K bss, 54920K reserved)
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] RCU dyntick-idle grace-period acceleration is enabled.
[ 0.000000] RCU restricting CPUs from NR_CPUS=16 to nr_cpu_ids=4.
[ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[ 0.000000] NR_IRQS:4352 nr_irqs:456 0
[ 0.000000] Console: colour VGA+ 80x25
[ 0.000000] console [ttyS0] enabled
[ 0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[ 0.000000] ... MAX_LOCKDEP_SUBCLASSES: 8
[ 0.000000] ... MAX_LOCK_DEPTH: 48
[ 0.000000] ... MAX_LOCKDEP_KEYS: 8191
[ 0.000000] ... CLASSHASH_SIZE: 4096
[ 0.000000] ... MAX_LOCKDEP_ENTRIES: 32768
[ 0.000000] ... MAX_LOCKDEP_CHAINS: 65536
[ 0.000000] ... CHAINHASH_SIZE: 32768
[ 0.000000] memory used by lock dependency info: 8671 kB
[ 0.000000] per task-struct memory footprint: 2688 bytes
[ 0.000000] ODEBUG: selftest passed
[ 0.000000] tsc: Fast TSC calibration using PIT
[ 0.000000] tsc: Detected 3300.005 MHz processor
[ 0.008003] Calibrating delay loop (skipped), value calculated using timer frequency.. 6600.01 BogoMIPS (lpj=13200020)
[ 0.009841] pid_max: default: 32768 minimum: 301
[ 0.012056] ACPI: Core revision 20140724
[ 0.017232] ACPI: All ACPI Tables successfully acquired
[ 0.018452] Security Framework initialized
[ 0.019198] AppArmor: AppArmor disabled by boot time parameter
[ 0.020062] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
[ 0.021217] Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes)
[ 0.023443] Initializing cgroup subsys devices
[ 0.024023] Initializing cgroup subsys freezer
[ 0.024835] Initializing cgroup subsys blkio
[ 0.025594] Initializing cgroup subsys perf_event
[ 0.026484] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 0.026484] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
[ 0.028241] Freeing SMP alternatives memory: 12K (ffffffff81d77000 - ffffffff81d7a000)
[ 0.032181] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 0.073142] smpboot: CPU0: Intel QEMU Virtual CPU version 2.1.0 (fam: 06, model: 06, stepping: 03)
[ 0.076000] Performance Events: Broken PMU hardware detected, using software events only.
[ 0.076000] Failed to access perfctr msr (MSR c1 is 0)
[ 0.096251] NMI watchdog: disabled (cpu0): hardware events not enabled
[ 0.104767] x86: Booting SMP configuration:
[ 0.105704] .... node #0, CPUs: #1 #2 #3
[ 0.400047] x86: Booted up 1 node, 4 CPUs
[ 0.400837] smpboot: Total of 4 processors activated (26401.72 BogoMIPS)
[ 0.402582] devtmpfs: initialized
[ 0.405501] NET: Registered protocol family 16
[ 0.408870] cpuidle: using governor menu
[ 0.409712] ACPI: bus type PCI registered
[ 0.410748] PCI: Using configuration type 1 for base access
[ 0.436864] ACPI: Added _OSI(Module Device)
[ 0.437126] ACPI: Added _OSI(Processor Device)
[ 0.440004] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 0.440889] ACPI: Added _OSI(Processor Aggregator Device)
[ 0.447801] ACPI: Interpreter enabled
[ 0.448008] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S1_] (20140724/hwxface-580)
[ 0.449697] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20140724/hwxface-580)
[ 0.451387] ACPI: (supports S0 S3 S4 S5)
[ 0.452003] ACPI: Using IOAPIC for interrupt routing
[ 0.452927] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 0.469357] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[ 0.470489] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI]
[ 0.471759] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM
[ 0.472286] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge.
[ 0.474571] PCI host bridge to bus 0000:00
[ 0.476005] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 0.476931] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7]
[ 0.477911] pci_bus 0000:00: root bus resource [io 0x0d00-0xadff]
[ 0.478853] pci_bus 0000:00: root bus resource [io 0xae0f-0xaeff]
[ 0.480003] pci_bus 0000:00: root bus resource [io 0xaf20-0xafdf]
[ 0.480953] pci_bus 0000:00: root bus resource [io 0xafe4-0xffff]
[ 0.481903] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff]
[ 0.482966] pci_bus 0000:00: root bus resource [mem 0x40000000-0xfebfffff]
[ 0.489221] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7]
[ 0.490499] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io 0x03f6]
[ 0.491649] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177]
[ 0.492003] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io 0x0376]
[ 0.493966] pci 0000:00:01.3: quirk: [io 0x0600-0x063f] claimed by PIIX4 ACPI
[ 0.496013] pci 0000:00:01.3: quirk: [io 0x0700-0x070f] claimed by PIIX4 SMB
[ 0.521089] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
[ 0.522398] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
[ 0.523684] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
[ 0.524460] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
[ 0.525621] ACPI: PCI Interrupt Link [LNKS] (IRQs *9)
[ 0.528789] ACPI: Enabled 16 GPEs in block 00 to 0F
[ 0.530415] vgaarb: setting as boot device: PCI:0000:00:02.0
[ 0.530415] vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
[ 0.532005] vgaarb: loaded
[ 0.532522] vgaarb: bridge control possible 0000:00:02.0
[ 0.534290] SCSI subsystem initialized
[ 0.536339] ACPI: bus type USB registered
[ 0.537085] usbcore: registered new interface driver usbfs
[ 0.538172] usbcore: registered new interface driver hub
[ 0.539289] usbcore: registered new device driver usb
[ 0.540139] Linux video capture interface: v2.00
[ 0.541040] PCI: Using ACPI for IRQ routing
[ 0.542990] HPET: 3 timers in total, 0 timers will be used for per-cpu timer
[ 0.544023] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
[ 0.544954] hpet0: 3 comparators, 64-bit 100.000000 MHz counter
[ 0.550797] Switched to clocksource hpet
[ 0.575439] pnp: PnP ACPI init
[ 0.578087] pnp: PnP ACPI: found 6 devices
[ 0.602325] NET: Registered protocol family 2
[ 0.604233] TCP established hash table entries: 8192 (order: 4, 65536 bytes)
[ 0.605806] TCP bind hash table entries: 8192 (order: 7, 655360 bytes)
[ 0.607736] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.609240] TCP: reno registered
[ 0.609846] UDP hash table entries: 512 (order: 4, 98304 bytes)
[ 0.611021] UDP-Lite hash table entries: 512 (order: 4, 98304 bytes)
[ 0.613256] NET: Registered protocol family 1
[ 0.614118] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
[ 0.615185] pci 0000:00:01.0: PIIX3: Enabling Passive Release
[ 0.616240] pci 0000:00:01.0: Activating ISA DMA hang workarounds
[ 0.776576] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11
[ 0.938281] Unpacking initramfs...
[ 0.972552] Freeing initrd memory: 1860K (ffff88003fe0f000 - ffff88003ffe0000)
[ 0.977096] futex hash table entries: 1024 (order: 5, 131072 bytes)
[ 0.978532] audit: initializing netlink subsys (disabled)
[ 0.979685] audit: type=2000 audit(1411647433.976:1): initialized
[ 0.982257] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[ 0.986563] msgmni has been set to 1943
[ 0.988218] cryptomgr_test (44) used greatest stack depth: 13744 bytes left
[ 0.991147] alg: No test for stdrng (krng)
[ 0.992115] bounce: pool size: 64 pages
[ 0.993013] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[ 0.994364] io scheduler noop registered
[ 0.995095] io scheduler deadline registered
[ 0.996164] io scheduler cfq registered (default)
[ 0.999181] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
[ 1.000655] ACPI: Power Button [PWRF]
[ 1.002215] GHES: HEST is not enabled!
[ 1.170574] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 1.195612] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[ 1.198825] Linux agpgart interface v0.103
[ 1.200126] [drm] Initialized drm 1.1.0 20060810
[ 1.202535] Floppy drive(s):
[ 1.203070] fd0 is 1.44M[ 1.203584]
[ 1.206540] loop: module loaded
[ 1.210757] scsi host0: ata_piix
[ 1.212493] scsi host1: ata_piix
[ 1.213397] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc020 irq 14
[ 1.214611] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc028 irq 15
[ 1.218321] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.219531] ehci-pci: EHCI PCI platform driver
[ 1.225656] FDC 0 is a S82078B
[ 1.373312] ata2.00: ATAPI: QEMU DVD-ROM, 2.1.0, max UDMA/100
[ 1.374602] ata1.00: ATA-7: QEMU HARDDISK, 2.1.0, max UDMA/100
[ 1.375668] ata1.00: 16777216 sectors, multi 16: LBA48
[ 1.377339] ata2.00: configured for MWDMA2
[ 1.378261] ata1.00: configured for MWDMA2
[ 1.387757] ehci-pci 0000:00:04.0: EHCI Host Controller
[ 1.389320] ehci-pci 0000:00:04.0: new USB bus registered, assigned bus number 1
[ 1.541889] ehci-pci 0000:00:04.0: irq 11, io mem 0xfebd2000
[ 1.542554] scsi 0:0:0:0: Direct-Access ATA QEMU HARDDISK 0 PQ: 0 ANSI: 5
[ 1.544480] sd 0:0:0:0: [sda] 16777216 512-byte logical blocks: (8.58 GB/8.00 GiB)
[ 1.544851] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 1.544886] sd 0:0:0:0: [sda] Write Protect is off
[ 1.545018] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 1.546528] scsi 1:0:0:0: CD-ROM QEMU QEMU DVD-ROM 2.1. PQ: 0 ANSI: 5
[ 1.549967] sda: sda1 sda2
[ 1.551665] sd 0:0:0:0: [sda] Attached SCSI disk
[ 1.557081] sr 1:0:0:0: [sr0] scsi3-mmc drive: 4x/4x cd/rw xa/form2 tray
[ 1.558312] cdrom: Uniform CD-ROM driver Revision: 3.20
[ 1.561004] sr 1:0:0:0: Attached scsi generic sg1 type 5
[ 1.564132] ehci-pci 0000:00:04.0: USB 2.0 started, EHCI 1.00
[ 1.565415] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 1.566640] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.567930] usb usb1: Product: EHCI Host Controller
[ 1.568915] usb usb1: Manufacturer: Linux 3.17.0-rc6+ ehci_hcd
[ 1.569986] usb usb1: SerialNumber: 0000:00:04.0
[ 1.571882] hub 1-0:1.0: USB hub found
[ 1.572659] hub 1-0:1.0: 6 ports detected
[ 1.574930] uhci_hcd: USB Universal Host Controller Interface driver
[ 1.576498] usbcore: registered new interface driver usb-storage
[ 1.577719] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12
[ 1.580157] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 1.581162] serio: i8042 AUX port at 0x60,0x64 irq 12
[ 1.583110] mousedev: PS/2 mouse device common for all mice
[ 1.585879] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1
[ 1.587719] rtc_cmos 00:00: RTC can wake from S4
[ 1.590271] rtc_cmos 00:00: rtc core: registered rtc_cmos as rtc0
[ 1.591734] rtc_cmos 00:00: alarms up to one day, 114 bytes nvram, hpet irqs
[ 1.593417] piix4_smbus 0000:00:01.3: SMBus Host Controller at 0x700, revision 0
[ 1.596473] usbcore: registered new interface driver em28xx
[ 1.597544] em28xx: Registered (Em28xx v4l2 Extension) extension
[ 1.598644] em28xx: Registered (Em28xx dvb Extension) extension
[ 1.600492] usbcore: registered new interface driver usbhid
[ 1.601483] usbhid: USB HID core driver
[ 1.602252] TCP: cubic registered
[ 1.602862] NET: Registered protocol family 17
[ 1.604628] registered taskstats version 1
[ 1.606628] rtc_cmos 00:00: setting system clock to 2014-09-25 12:17:15 UTC (1411647435)
[ 1.614294] Freeing unused kernel memory: 2668K (ffffffff81adc000 - ffffffff81d77000)
[ 1.615703] Write protecting the kernel read-only data: 10240k
[ 1.621271] Freeing unused kernel memory: 1260K (ffff8800014c5000 - ffff880001600000)
[ 1.625984] Freeing unused kernel memory: 1100K (ffff8800018ed000 - ffff880001a00000)
Loading, please wait...
[ 1.653961] udevd[79]: starting version 175
[ 1.824003] ata_id (161) used greatest stack depth: 13408 bytes left
[ 1.978760] tsc: Refined TSC clocksource calibration: 3299.997 MHz
[ 1.999472] ata_id (160) used greatest stack depth: 12408 bytes left
[ 2.032199] usb 1-1: new high-speed USB device number 2 using ehci-pci
modprobe: chdir(3.17.0-rc6+): No such file or directory
Begin: Loading essential drivers ... modprobe: chdir(3.17.0-rc6+): No such file or directory
modprobe: chdir(3.17.0-rc6+): No such file or directory
done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-premount ... [ 2.258357] PM: Starting manual resume from disk
[ 2.268775] Freezing user space processes ... (elapsed 0.003 seconds) done.
[ 2.279909] PM: Using 3 thread(s) for decompression.
[ 2.279909] PM: Loading and decompressing image data (27375 pages)...
[ 2.316994] PM: Image loading progress: 0%
[ 2.319476] usb 1-1: New USB device found, idVendor=2040, idProduct=1605
[ 2.320928] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=2
[ 2.322236] usb 1-1: Product: WinTV HVR-930C
[ 2.323126] usb 1-1: SerialNumber: 4034209007
[ 2.326389] em28xx: New device WinTV HVR-930C @ 480 Mbps (2040:1605, interface 0, class 0)
[ 2.327949] em28xx: Audio interface 0 found (Vendor Class)
[ 2.329072] em28xx: Video interface 0 found: isoc
[ 2.329934] em28xx: DVB interface 0 found: isoc
[ 2.331397] em28xx: chip ID is em2884
[ 2.400710] em2884 #0: EEPROM ID = 26 00 01 00, EEPROM hash = 0x33f006aa
[ 2.402240] em2884 #0: EEPROM info:
[ 2.402901] em2884 #0: microcode start address = 0x0004, boot configuration = 0x01
[ 2.424604] em2884 #0: I2S audio, 5 sample rates
[ 2.425919] em2884 #0: 500mA max power
[ 2.426856] em2884 #0: Table at offset 0x24, strings=0x1e82, 0x186a, 0x0000
[ 2.428604] em2884 #0: Identified as Hauppauge WinTV HVR 930C (card=81)
[ 2.430181] tveeprom 2-0050: Hauppauge model 16009, rev B1F0, serial# 7677167
[ 2.431754] tveeprom 2-0050: MAC address is 00:0d:fe:75:24:ef
[ 2.432973] tveeprom 2-0050: tuner model is Xceive XC5000 (idx 150, type 76)
[ 2.434591] tveeprom 2-0050: TV standards PAL(B/G) PAL(I) SECAM(L/L') PAL(D/D1/K) ATSC/DVB Digital (eeprom 0xf4)
[ 2.436503] tveeprom 2-0050: audio processor is unknown (idx 45)
[ 2.437651] tveeprom 2-0050: decoder processor is unknown (idx 44)
[ 2.438788] tveeprom 2-0050: has no radio, has IR receiver, has no IR transmitter
[ 2.440241] em2884 #0: analog set to isoc mode.
[ 2.441086] em2884 #0: dvb set to isoc mode.
[ 2.442069] em2884 #0: Registering V4L2 extension
[ 2.443805] em2884 #0: Config register raw data: 0xc3
[ 2.458044] PM: Image loading progress: 10%
[ 2.463275] em2884 #0: V4L2 video device registered as video0
[ 2.464437] em2884 #0: V4L2 extension successfully initialized
[ 2.465560] em2884 #0: Binding DVB extension
[ 2.479459] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input3
[ 2.485455] PM: Image loading progress: 20%
[ 2.507997] PM: Image loading progress: 30%
[ 2.528243] PM: Image loading progress: 40%
[ 2.548193] PM: Image loading progress: 50%
[ 2.567568] PM: Image loading progress: 60%
[ 2.584754] PM: Image loading progress: 70%
[ 2.605406] PM: Image loading progress: 80%
[ 2.622287] PM: Image loading progress: 90%
[ 2.640716] PM: Image loading progress: 100%
[ 2.641694] PM: Image loading done.
[ 2.642317] PM: Read 109500 kbytes in 0.35 seconds (312.85 MB/s)
[ 2.652111] em2884 #0: Suspending extensions
[ 2.981457] Switched to clocksource tsc
[ 3.776327] ------------[ cut here ]------------
[ 3.778261] WARNING: CPU: 2 PID: 40 at drivers/base/firmware_class.c:1124 _request_firmware+0x205/0x568()
[ 3.780934] Modules linked in:
[ 3.781765] CPU: 2 PID: 40 Comm: kworker/2:1 Not tainted 3.17.0-rc6+ #78
[ 3.783389] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014
[ 3.785887] Workqueue: events request_module_async
[ 3.787451] 0000000000000000 ffff88003d403b40 ffffffff814b5228 0000000000000000
[ 3.789003] ffff88003d403b78 ffffffff81032d75 ffffffff81320b03 00000000fffffff5
[ 3.790558] ffff880039ebada0 ffff88003ca61700 ffff88003cf20900 ffff88003d403b88
[ 3.792082] Call Trace:
[ 3.792597] [<ffffffff814b5228>] dump_stack+0x4e/0x7a
[ 3.793514] [<ffffffff81032d75>] warn_slowpath_common+0x7a/0x93
[ 3.794555] [<ffffffff81320b03>] ? _request_firmware+0x205/0x568
[ 3.795610] [<ffffffff81032e32>] warn_slowpath_null+0x15/0x17
[ 3.796566] [<ffffffff81320b03>] _request_firmware+0x205/0x568
[ 3.797514] [<ffffffff81065585>] ? trace_hardirqs_on+0xd/0xf
[ 3.798420] [<ffffffff81063c2c>] ? lockdep_init_map+0xc4/0x13f
[ 3.799350] [<ffffffff81320e96>] request_firmware+0x30/0x42
[ 3.800293] [<ffffffff813f2f6b>] drxk_attach+0x546/0x656
[ 3.801170] [<ffffffff814ba9e2>] em28xx_dvb_init.part.3+0xa1c/0x1cc6
[ 3.802181] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 3.803229] [<ffffffff814be28d>] ? mutex_unlock+0x9/0xb
[ 3.804091] [<ffffffff814b96b1>] ? em28xx_v4l2_init.part.11+0xcbd/0xd04
[ 3.805147] [<ffffffff8141b7fa>] em28xx_dvb_init+0x1d/0x1f
[ 3.806049] [<ffffffff81415753>] em28xx_init_extension+0x51/0x67
[ 3.807032] [<ffffffff81416d4b>] request_module_async+0x19/0x1b
[ 3.807984] [<ffffffff8104585c>] process_one_work+0x1d2/0x38a
[ 3.808916] [<ffffffff810462f0>] worker_thread+0x1f6/0x2a3
[ 3.809799] [<ffffffff810460fa>] ? rescuer_thread+0x214/0x214
[ 3.810694] [<ffffffff81049c09>] kthread+0xc7/0xcf
[ 3.811437] [<ffffffff8125d4c9>] ? debug_smp_processor_id+0x17/0x19
[ 3.812442] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 3.813514] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 3.814460] [<ffffffff814c0dac>] ret_from_fork+0x7c/0xb0
[ 3.815325] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 3.816251] ---[ end trace aacc7afef85cf9bc ]---
[ 3.817008] usb 1-1: firmware: dvb-usb-hauppauge-hvr930c-drxk.fw will not be loaded
[ 3.818212] drxk: Could not load firmware file dvb-usb-hauppauge-hvr930c-drxk.fw.
[ 3.819342] drxk: Copy dvb-usb-hauppauge-hvr930c-drxk.fw to your hotplug directory!
[ 3.855389] drxk: status = 0x439130d9
[ 3.856161] drxk: detected a drx-3913k, spin A2, xtal 20.250 MHz
[ 3.958678] drxk: DRXK driver version 0.9.4300
[ 4.044508] drxk: frontend initialized.
[ 4.046224] xc5000 2-0061: creating new instance
[ 4.053942] xc5000: Successfully identified at address 0x61
[ 4.056237] xc5000: Firmware has not been loaded previously
[ 4.058346] DVB: registering new adapter (em2884 #0)
[ 4.059633] usb 1-1: DVB: registering adapter 0 frontend 0 (DRXK DVB-C DVB-T)...
[ 4.061572] dvb dvb0.frontend0: parent 1-1 should not be sleeping
[ 4.063825] dvb dvb0.demux0: parent 1-1 should not be sleeping
[ 4.065179] dvb dvb0.dvr0: parent 1-1 should not be sleeping
[ 4.066456] dvb dvb0.net0: parent 1-1 should not be sleeping
[ 4.067742] em2884 #0: DVB extension successfully initialized
[ 4.068859] em2884 #0: Suspending video extension
[ 4.073226] em2884 #0: Suspending DVB extensionem2884 #0: fe0 suspend 0
[ 4.082060] PM: quiesce of devices complete after 1430.328 msecs
[ 4.084126] PM: late quiesce of devices complete after 0.945 msecs
[ 4.086801] PM: noirq quiesce of devices complete after 1.571 msecs
[ 4.088083] Disabling non-boot CPUs ...
[ 4.161837] smpboot: CPU 1 is now offline
[ 4.344159] smpboot: CPU 2 is now offline
[ 4.417596] smpboot: CPU 3 is now offline
[ 19.856897] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S0_] (20140724/hwxface-580)
[ 19.856897] PM: Restoring platform NVS memory
[ 19.856897] Enabling non-boot CPUs ...
[ 19.856897] x86: Booting SMP configuration:
[ 19.857663] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 19.890544] CPU1 is up
[ 19.891716] smpboot: Booting Node 0 Processor 2 APIC 0x2
[ 19.924528] CPU2 is up
[ 19.925751] smpboot: Booting Node 0 Processor 3 APIC 0x3
[ 19.958521] CPU3 is up
[ 19.959262] ACPI: Waking up from system sleep state S4
[ 19.962267] PM: noirq restore of devices complete after 1.908 msecs
[ 19.964326] PM: early restore of devices complete after 0.814 msecs
[ 19.992310] rtc_cmos 00:00: System wakeup disabled by ACPI
[ 19.996155] usb usb1: root hub lost power or was reset
[ 20.149788] sd 0:0:0:0: [sda] Starting disk
[ 20.153624] ata1.00: configured for MWDMA2
[ 20.301061] ata2.00: configured for MWDMA2
[ 20.570672] Clocksource tsc unstable (delta = -90514299 ns)
[ 20.572354] Switched to clocksource hpet
[ 20.624243] usb 1-1: reset high-speed USB device number 2 using ehci-pci
[ 20.915865] em2884 #0: Disconnecting em2884 #0
[ 20.917709] em2884 #0: Closing video extension
[ 20.918605] em2884 #0: V4L2 device video0 deregistered
[ 20.921576] em2884 #0: Closing DVB extension
[ 20.925706] xc5000 2-0061: destroying instance
[ 240.440383] INFO: task kworker/u8:11:2061 blocked for more than 120 seconds.
[ 240.443089] Not tainted 3.17.0-rc6+ #78
[ 240.444747] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 240.447486] kworker/u8:11 D ffff88003cbea4d0 13352 2061 2 0x00000000
[ 240.450013] Workqueue: events_unbound async_run_entry_fn
[ 240.451956] ffff88003cd139b0 0000000000000046 ffffffff81a13580 ffff88003cd13fd8
[ 240.454602] ffff88003cbea4d0 00000000001d3400 7fffffffffffffff ffff88003d50a7e8
[ 240.457202] 0000000000000002 ffffffff814bf9b1 ffff88003d50a7f0 ffff88003cd139c0
[ 240.460130] Call Trace:
[ 240.460625] [<ffffffff814bf9b1>] ? console_conditional_schedule+0x27/0x27
[ 240.461916] [<ffffffff814bc514>] schedule+0x64/0x66
[ 240.462878] [<ffffffff814bf9e0>] schedule_timeout+0x2f/0xef
[ 240.464695] [<ffffffff810653c2>] ? mark_held_locks+0x5d/0x74
[ 240.466417] [<ffffffff814c0387>] ? _raw_spin_unlock_irq+0x27/0x46
[ 240.468391] [<ffffffff814bf9b1>] ? console_conditional_schedule+0x27/0x27
[ 240.470376] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 240.472433] [<ffffffff81065585>] ? trace_hardirqs_on+0xd/0xf
[ 240.474065] [<ffffffff814bcce4>] do_wait_for_common+0xf9/0x131
[ 240.475804] [<ffffffff814bcce4>] ? do_wait_for_common+0xf9/0x131
[ 240.477595] [<ffffffff81053dd9>] ? wake_up_state+0xd/0xd
[ 240.479220] [<ffffffff814bcde5>] wait_for_common+0x4a/0x64
[ 240.480802] [<ffffffff814bce17>] wait_for_completion+0x18/0x1a
[ 240.482413] [<ffffffff813b5587>] i2c_del_adapter+0x17b/0x1be
[ 240.484115] [<ffffffff81416b3b>] em28xx_i2c_unregister+0x24/0x28
[ 240.485777] [<ffffffff81416c8c>] em28xx_release_resources+0x3b/0x64
[ 240.487577] [<ffffffff81416da4>] em28xx_usb_disconnect+0x57/0x6a
[ 240.489331] [<ffffffff8136ec49>] usb_unbind_interface+0x75/0x1fd
[ 240.491037] [<ffffffff81315190>] __device_release_driver+0x84/0xde
[ 240.492792] [<ffffffff813151ff>] device_release_driver+0x15/0x21
[ 240.494371] [<ffffffff8136ee14>] usb_driver_release_interface+0x43/0x78
[ 240.496276] [<ffffffff813621ca>] ? usb_for_each_dev+0x2b/0x2b
[ 240.497788] [<ffffffff8136ee67>] usb_forced_unbind_intf+0x1e/0x25
[ 240.499477] [<ffffffff8136eea6>] unbind_marked_interfaces.isra.9+0x38/0x42
[ 240.501365] [<ffffffff8136eef8>] usb_resume+0x48/0x5b
[ 240.502707] [<ffffffff813621d8>] usb_dev_restore+0xe/0x10
[ 240.504192] [<ffffffff8131d71b>] dpm_run_callback+0x3f/0x76
[ 240.505602] [<ffffffff8131e34b>] device_resume+0x155/0x17f
[ 240.507047] [<ffffffff8131e38d>] async_resume+0x18/0x3e
[ 240.508452] [<ffffffff8104c526>] async_run_entry_fn+0x5c/0x106
[ 240.509939] [<ffffffff8104585c>] process_one_work+0x1d2/0x38a
[ 240.511455] [<ffffffff81062d20>] ? trace_hardirqs_off_caller+0x40/0xad
[ 240.513149] [<ffffffff810462f0>] worker_thread+0x1f6/0x2a3
[ 240.514488] [<ffffffff810460fa>] ? rescuer_thread+0x214/0x214
[ 240.515949] [<ffffffff81049c09>] kthread+0xc7/0xcf
[ 240.517188] [<ffffffff8125d4c9>] ? debug_smp_processor_id+0x17/0x19
[ 240.518712] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 240.520435] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 240.521833] [<ffffffff814c0dac>] ret_from_fork+0x7c/0xb0
[ 240.523202] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 240.524603] 5 locks held by kworker/u8:11/2061:
[ 240.525647] #0: ("events_unbound"){.+.+.+}, at: [<ffffffff810457e0>] process_one_work+0x156/0x38a
[ 240.527878] #1: ((&entry->work)){+.+.+.}, at: [<ffffffff810457e0>] process_one_work+0x156/0x38a
[ 240.530065] #2: (&dev->mutex){......}, at: [<ffffffff8131e243>] device_resume+0x4d/0x17f
[ 240.532163] #3: (&dev->mutex){......}, at: [<ffffffff81314f37>] device_lock+0xf/0x11
[ 240.534106] #4: (&dev->lock){+.+.+.}, at: [<ffffffff81416c6c>] em28xx_release_resources+0x1b/0x64
[ 240.536394] INFO: task kworker/u8:12:2062 blocked for more than 120 seconds.
[ 240.537948] Not tainted 3.17.0-rc6+ #78
[ 240.538939] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 240.540747] kworker/u8:12 D ffff88003cbd8510 14072 2062 2 0x00000000
[ 240.542349] Workqueue: events_unbound async_run_entry_fn
[ 240.543607] ffff88003ccfbb70 0000000000000046 ffff88003cbca550 ffff88003ccfbfd8
[ 240.545362] ffff88003cbd8510 00000000001d3400 7fffffffffffffff ffff88003c6f5a18
[ 240.547090] 0000000000000002 ffffffff814bf9b1 ffff88003c6f5a20 ffff88003ccfbb80
[ 240.548789] Call Trace:
[ 240.549336] [<ffffffff814bf9b1>] ? console_conditional_schedule+0x27/0x27
[ 240.550798] [<ffffffff814bc514>] schedule+0x64/0x66
[ 240.551906] [<ffffffff814bf9e0>] schedule_timeout+0x2f/0xef
[ 240.553172] [<ffffffff810653c2>] ? mark_held_locks+0x5d/0x74
[ 240.554400] [<ffffffff814c0387>] ? _raw_spin_unlock_irq+0x27/0x46
[ 240.555788] [<ffffffff814bf9b1>] ? console_conditional_schedule+0x27/0x27
[ 240.557268] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 240.558647] [<ffffffff81065585>] ? trace_hardirqs_on+0xd/0xf
[ 240.559905] [<ffffffff814bcce4>] do_wait_for_common+0xf9/0x131
[ 240.561189] [<ffffffff814bcce4>] ? do_wait_for_common+0xf9/0x131
[ 240.562452] [<ffffffff81053dd9>] ? wake_up_state+0xd/0xd
[ 240.563619] [<ffffffff814bcde5>] wait_for_common+0x4a/0x64
[ 240.564814] [<ffffffff814bce17>] wait_for_completion+0x18/0x1a
[ 240.566041] [<ffffffff8131d3bb>] dpm_wait+0x2c/0x2e
[ 240.567078] [<ffffffff8131e239>] device_resume+0x43/0x17f
[ 240.568239] [<ffffffff8131e38d>] async_resume+0x18/0x3e
[ 240.569309] [<ffffffff8104c526>] async_run_entry_fn+0x5c/0x106
[ 240.570493] [<ffffffff8104585c>] process_one_work+0x1d2/0x38a
[ 240.571706] [<ffffffff81062d20>] ? trace_hardirqs_off_caller+0x40/0xad
[ 240.573079] [<ffffffff810462f0>] worker_thread+0x1f6/0x2a3
[ 240.574192] [<ffffffff810460fa>] ? rescuer_thread+0x214/0x214
[ 240.575411] [<ffffffff81049c09>] kthread+0xc7/0xcf
[ 240.576434] [<ffffffff8125d4c9>] ? debug_smp_processor_id+0x17/0x19
[ 240.577660] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 240.579018] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 240.580205] [<ffffffff814c0dac>] ret_from_fork+0x7c/0xb0
[ 240.581250] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 240.582414] 2 locks held by kworker/u8:12/2062:
[ 240.583034] #0: ("events_unbound"){.+.+.+}, at: [<ffffffff810457e0>] process_one_work+0x156/0x38a
[ 240.584301] #1: ((&entry->work)){+.+.+.}, at: [<ffffffff810457e0>] process_one_work+0x156/0x38a
[ 240.585488] INFO: task kworker/u8:13:2063 blocked for more than 120 seconds.
[ 240.586770] Not tainted 3.17.0-rc6+ #78
[ 240.587664] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 240.589237] kworker/u8:13 D ffff88003cbca550 14072 2063 2 0x00000000
[ 240.590676] Workqueue: events_unbound async_run_entry_fn
[ 240.591778] ffff88003ccf7b70 0000000000000046 ffff88003cbb8590 ffff88003ccf7fd8
[ 240.593330] ffff88003cbca550 00000000001d3400 7fffffffffffffff ffff88003c0d01b8
[ 240.594827] 0000000000000002 ffffffff814bf9b1 ffff88003c0d01c0 ffff88003ccf7b80
[ 240.596418] Call Trace:
[ 240.596912] [<ffffffff814bf9b1>] ? console_conditional_schedule+0x27/0x27
[ 240.598251] [<ffffffff814bc514>] schedule+0x64/0x66
[ 240.599242] [<ffffffff814bf9e0>] schedule_timeout+0x2f/0xef
[ 240.600354] [<ffffffff810653c2>] ? mark_held_locks+0x5d/0x74
[ 240.601406] [<ffffffff814c0387>] ? _raw_spin_unlock_irq+0x27/0x46
[ 240.602561] [<ffffffff814bf9b1>] ? console_conditional_schedule+0x27/0x27
[ 240.603861] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 240.605117] [<ffffffff81065585>] ? trace_hardirqs_on+0xd/0xf
[ 240.606154] [<ffffffff814bcce4>] do_wait_for_common+0xf9/0x131
[ 240.607238] [<ffffffff814bcce4>] ? do_wait_for_common+0xf9/0x131
[ 240.608368] [<ffffffff81053dd9>] ? wake_up_state+0xd/0xd
[ 240.609330] [<ffffffff814bcde5>] wait_for_common+0x4a/0x64
[ 240.610360] [<ffffffff814bce17>] wait_for_completion+0x18/0x1a
[ 240.611434] [<ffffffff8131d3bb>] dpm_wait+0x2c/0x2e
[ 240.612348] [<ffffffff8131e239>] device_resume+0x43/0x17f
[ 240.613297] [<ffffffff8131e38d>] async_resume+0x18/0x3e
[ 240.614247] [<ffffffff8104c526>] async_run_entry_fn+0x5c/0x106
[ 240.615317] [<ffffffff8104585c>] process_one_work+0x1d2/0x38a
[ 240.616390] [<ffffffff81062d20>] ? trace_hardirqs_off_caller+0x40/0xad
[ 240.617519] [<ffffffff810462f0>] worker_thread+0x1f6/0x2a3
[ 240.618484] [<ffffffff810460fa>] ? rescuer_thread+0x214/0x214
[ 240.619639] [<ffffffff81049c09>] kthread+0xc7/0xcf
[ 240.620531] [<ffffffff8125d4c9>] ? debug_smp_processor_id+0x17/0x19
[ 240.621624] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 240.622806] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 240.623855] [<ffffffff814c0dac>] ret_from_fork+0x7c/0xb0
[ 240.624823] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 240.625846] 2 locks held by kworker/u8:13/2063:
[ 240.626654] #0: ("events_unbound"){.+.+.+}, at: [<ffffffff810457e0>] process_one_work+0x156/0x38a
[ 240.628378] #1: ((&entry->work)){+.+.+.}, at: [<ffffffff810457e0>] process_one_work+0x156/0x38a
[ 240.629976] INFO: task kworker/u8:14:2064 blocked for more than 120 seconds.
[ 240.631286] Not tainted 3.17.0-rc6+ #78
[ 240.632085] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 240.633421] kworker/u8:14 D ffff88003cbb8590 14072 2064 2 0x00000000
[ 240.634655] Workqueue: events_unbound async_run_entry_fn
[ 240.635646] ffff88003cbdfb70 0000000000000046 ffff88003cbb05d0 ffff88003cbdffd8
[ 240.637027] ffff88003cbb8590 00000000001d3400 7fffffffffffffff ffff88003c0d01b8
[ 240.638351] 0000000000000002 ffffffff814bf9b1 ffff88003c0d01c0 ffff88003cbdfb80
[ 240.639735] Call Trace:
[ 240.640200] [<ffffffff814bf9b1>] ? console_conditional_schedule+0x27/0x27
[ 240.641379] [<ffffffff814bc514>] schedule+0x64/0x66
[ 240.642229] [<ffffffff814bf9e0>] schedule_timeout+0x2f/0xef
[ 240.643276] [<ffffffff810653c2>] ? mark_held_locks+0x5d/0x74
[ 240.644339] [<ffffffff814c0387>] ? _raw_spin_unlock_irq+0x27/0x46
[ 240.645398] [<ffffffff814bf9b1>] ? console_conditional_schedule+0x27/0x27
[ 240.646631] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 240.647832] [<ffffffff81065585>] ? trace_hardirqs_on+0xd/0xf
[ 240.648860] [<ffffffff814bcce4>] do_wait_for_common+0xf9/0x131
[ 240.649881] [<ffffffff814bcce4>] ? do_wait_for_common+0xf9/0x131
[ 240.650954] [<ffffffff81053dd9>] ? wake_up_state+0xd/0xd
[ 240.651900] [<ffffffff814bcde5>] wait_for_common+0x4a/0x64
[ 240.652901] [<ffffffff814bce17>] wait_for_completion+0x18/0x1a
[ 240.653915] [<ffffffff8131d3bb>] dpm_wait+0x2c/0x2e
[ 240.654806] [<ffffffff8131e239>] device_resume+0x43/0x17f
[ 240.655806] [<ffffffff8131e38d>] async_resume+0x18/0x3e
[ 240.656760] [<ffffffff8104c526>] async_run_entry_fn+0x5c/0x106
[ 240.657777] [<ffffffff8104585c>] process_one_work+0x1d2/0x38a
[ 240.658794] [<ffffffff81062d20>] ? trace_hardirqs_off_caller+0x40/0xad
[ 240.659989] [<ffffffff810462f0>] worker_thread+0x1f6/0x2a3
[ 240.660985] [<ffffffff810460fa>] ? rescuer_thread+0x214/0x214
[ 240.661988] [<ffffffff81049c09>] kthread+0xc7/0xcf
[ 240.662853] [<ffffffff8125d4c9>] ? debug_smp_processor_id+0x17/0x19
[ 240.663994] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 240.665179] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 240.666183] [<ffffffff814c0dac>] ret_from_fork+0x7c/0xb0
[ 240.667208] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 240.668275] 2 locks held by kworker/u8:14/2064:
[ 240.669060] #0: ("events_unbound"){.+.+.+}, at: [<ffffffff810457e0>] process_one_work+0x156/0x38a
[ 240.670689] #1: ((&entry->work)){+.+.+.}, at: [<ffffffff810457e0>] process_one_work+0x156/0x38a
[ 240.672391] INFO: task kworker/u8:15:2065 blocked for more than 120 seconds.
[ 240.673591] Not tainted 3.17.0-rc6+ #78
[ 240.674374] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 240.675804] kworker/u8:15 D ffff88003cbb05d0 14192 2065 2 0x00000000
[ 240.677119] Workqueue: events_unbound async_run_entry_fn
[ 240.678110] ffff88003cbd7b70 0000000000000046 ffff88003cb7a610 ffff88003cbd7fd8
[ 240.679510] ffff88003cbb05d0 00000000001d3400 7fffffffffffffff ffff88003c0d01b8
[ 240.680917] 0000000000000002 ffffffff814bf9b1 ffff88003c0d01c0 ffff88003cbd7b80
[ 240.682292] Call Trace:
[ 240.682751] [<ffffffff814bf9b1>] ? console_conditional_schedule+0x27/0x27
[ 240.683977] [<ffffffff814bc514>] schedule+0x64/0x66
[ 240.684867] [<ffffffff814bf9e0>] schedule_timeout+0x2f/0xef
[ 240.685844] [<ffffffff810653c2>] ? mark_held_locks+0x5d/0x74
[ 240.686872] [<ffffffff814c0387>] ? _raw_spin_unlock_irq+0x27/0x46
[ 240.687996] [<ffffffff814bf9b1>] ? console_conditional_schedule+0x27/0x27
[ 240.689218] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 240.690363] [<ffffffff81065585>] ? trace_hardirqs_on+0xd/0xf
[ 240.691424] [<ffffffff814bcce4>] do_wait_for_common+0xf9/0x131
[ 240.692519] [<ffffffff814bcce4>] ? do_wait_for_common+0xf9/0x131
[ 240.693561] [<ffffffff81053dd9>] ? wake_up_state+0xd/0xd
[ 240.694497] [<ffffffff814bcde5>] wait_for_common+0x4a/0x64
[ 240.695588] [<ffffffff814bce17>] wait_for_completion+0x18/0x1a
[ 240.696785] [<ffffffff8131d3bb>] dpm_wait+0x2c/0x2e
[ 240.697711] [<ffffffff8131e239>] device_resume+0x43/0x17f
[ 240.698738] [<ffffffff8131e38d>] async_resume+0x18/0x3e
[ 240.699813] [<ffffffff8104c526>] async_run_entry_fn+0x5c/0x106
[ 240.700966] [<ffffffff8104585c>] process_one_work+0x1d2/0x38a
[ 240.702056] [<ffffffff81062d20>] ? trace_hardirqs_off_caller+0x40/0xad
[ 240.703296] [<ffffffff810462f0>] worker_thread+0x1f6/0x2a3
[ 240.704323] [<ffffffff810460fa>] ? rescuer_thread+0x214/0x214
[ 240.705373] [<ffffffff81049c09>] kthread+0xc7/0xcf
[ 240.706233] [<ffffffff8125d4c9>] ? debug_smp_processor_id+0x17/0x19
[ 240.707379] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 240.708595] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 240.709601] [<ffffffff814c0dac>] ret_from_fork+0x7c/0xb0
[ 240.710563] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 240.711648] 2 locks held by kworker/u8:15/2065:
[ 240.712471] #0: ("events_unbound"){.+.+.+}, at: [<ffffffff810457e0>] process_one_work+0x156/0x38a
[ 240.714092] #1: ((&entry->work)){+.+.+.}, at: [<ffffffff810457e0>] process_one_work+0x156/0x38a
[ 240.715727] INFO: task kworker/u8:16:2066 blocked for more than 120 seconds.
[ 240.717016] Not tainted 3.17.0-rc6+ #78
[ 240.717773] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 240.719210] kworker/u8:16 D ffff88003cb7a610 14192 2066 2 0x00000000
[ 240.720545] Workqueue: events_unbound async_run_entry_fn
[ 240.721484] ffff88003cbcfb70 0000000000000046 ffff88003cb68650 ffff88003cbcffd8
[ 240.722874] ffff88003cb7a610 00000000001d3400 7fffffffffffffff ffff88003c0d01b8
[ 240.724313] 0000000000000002 ffffffff814bf9b1 ffff88003c0d01c0 ffff88003cbcfb80
[ 240.725629] Call Trace:
[ 240.726079] [<ffffffff814bf9b1>] ? console_conditional_schedule+0x27/0x27
[ 240.727355] [<ffffffff814bc514>] schedule+0x64/0x66
[ 240.728271] [<ffffffff814bf9e0>] schedule_timeout+0x2f/0xef
[ 240.729269] [<ffffffff810653c2>] ? mark_held_locks+0x5d/0x74
[ 240.730283] [<ffffffff814c0387>] ? _raw_spin_unlock_irq+0x27/0x46
[ 240.731427] [<ffffffff814bf9b1>] ? console_conditional_schedule+0x27/0x27
[ 240.732667] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 240.733812] [<ffffffff81065585>] ? trace_hardirqs_on+0xd/0xf
[ 240.734838] [<ffffffff814bcce4>] do_wait_for_common+0xf9/0x131
[ 240.735928] [<ffffffff814bcce4>] ? do_wait_for_common+0xf9/0x131
[ 240.737009] [<ffffffff81053dd9>] ? wake_up_state+0xd/0xd
[ 240.737935] [<ffffffff814bcde5>] wait_for_common+0x4a/0x64
[ 240.738974] [<ffffffff814bce17>] wait_for_completion+0x18/0x1a
[ 240.740055] [<ffffffff8131d3bb>] dpm_wait+0x2c/0x2e
[ 240.740911] [<ffffffff8131e239>] device_resume+0x43/0x17f
[ 240.741893] [<ffffffff8131e38d>] async_resume+0x18/0x3e
[ 240.742841] [<ffffffff8104c526>] async_run_entry_fn+0x5c/0x106
[ 240.743929] [<ffffffff8104585c>] process_one_work+0x1d2/0x38a
[ 240.744971] [<ffffffff81062d20>] ? trace_hardirqs_off_caller+0x40/0xad
[ 240.746119] [<ffffffff810462f0>] worker_thread+0x1f6/0x2a3
[ 240.747153] [<ffffffff810460fa>] ? rescuer_thread+0x214/0x214
[ 240.748226] [<ffffffff81049c09>] kthread+0xc7/0xcf
[ 240.749098] [<ffffffff8125d4c9>] ? debug_smp_processor_id+0x17/0x19
[ 240.750182] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 240.751417] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 240.752515] [<ffffffff814c0dac>] ret_from_fork+0x7c/0xb0
[ 240.753466] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 240.754502] 2 locks held by kworker/u8:16/2066:
[ 240.755345] #0: ("events_unbound"){.+.+.+}, at: [<ffffffff810457e0>] process_one_work+0x156/0x38a
[ 240.757049] #1: ((&entry->work)){+.+.+.}, at: [<ffffffff810457e0>] process_one_work+0x156/0x38a
[ 240.758676] INFO: task kworker/u8:17:2067 blocked for more than 120 seconds.
[ 240.759994] Not tainted 3.17.0-rc6+ #78
[ 240.760802] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 240.762174] kworker/u8:17 D ffff88003cb68650 14192 2067 2 0x00000000
[ 240.763469] Workqueue: events_unbound async_run_entry_fn
[ 240.764468] ffff88003cbbfb70 0000000000000046 ffff88003cb56690 ffff88003cbbffd8
[ 240.765792] ffff88003cb68650 00000000001d3400 7fffffffffffffff ffff88003c6f5a18
[ 240.767180] 0000000000000002 ffffffff814bf9b1 ffff88003c6f5a20 ffff88003cbbfb80
[ 240.768543] Call Trace:
[ 240.768967] [<ffffffff814bf9b1>] ? console_conditional_schedule+0x27/0x27
[ 240.770197] [<ffffffff814bc514>] schedule+0x64/0x66
[ 240.771139] [<ffffffff814bf9e0>] schedule_timeout+0x2f/0xef
[ 240.772144] [<ffffffff810653c2>] ? mark_held_locks+0x5d/0x74
[ 240.773137] [<ffffffff814c0387>] ? _raw_spin_unlock_irq+0x27/0x46
[ 240.774240] [<ffffffff814bf9b1>] ? console_conditional_schedule+0x27/0x27
[ 240.775491] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 240.776722] [<ffffffff81065585>] ? trace_hardirqs_on+0xd/0xf
[ 240.777706] [<ffffffff814bcce4>] do_wait_for_common+0xf9/0x131
[ 240.778727] [<ffffffff814bcce4>] ? do_wait_for_common+0xf9/0x131
[ 240.779836] [<ffffffff81053dd9>] ? wake_up_state+0xd/0xd
[ 240.780839] [<ffffffff814bcde5>] wait_for_common+0x4a/0x64
[ 240.781793] [<ffffffff814bce17>] wait_for_completion+0x18/0x1a
[ 240.782855] [<ffffffff8131d3bb>] dpm_wait+0x2c/0x2e
[ 240.783803] [<ffffffff8131e239>] device_resume+0x43/0x17f
[ 240.784821] [<ffffffff8131e38d>] async_resume+0x18/0x3e
[ 240.785739] [<ffffffff8104c526>] async_run_entry_fn+0x5c/0x106
[ 240.786798] [<ffffffff8104585c>] process_one_work+0x1d2/0x38a
[ 240.787915] [<ffffffff81062d20>] ? trace_hardirqs_off_caller+0x40/0xad
[ 240.789158] [<ffffffff810462f0>] worker_thread+0x1f6/0x2a3
[ 240.790187] [<ffffffff810460fa>] ? rescuer_thread+0x214/0x214
[ 240.791279] [<ffffffff81049c09>] kthread+0xc7/0xcf
[ 240.792176] [<ffffffff8125d4c9>] ? debug_smp_processor_id+0x17/0x19
[ 240.793347] [<ffffffff8106555c>] ? trace_hardirqs_on_caller+0x183/0x19f
[ 240.794578] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 240.795648] [<ffffffff814c0dac>] ret_from_fork+0x7c/0xb0
[ 240.796656] [<ffffffff81049b42>] ? __kthread_parkme+0x62/0x62
[ 240.797720] 2 locks held by kworker/u8:17/2067:
[ 240.798535] #0: ("events_unbound"){.+.+.+}, at: [<ffffffff810457e0>] process_one_work+0x156/0x38a
[ 240.800346] #1: ((&entry->work)){+.+.+.}, at: [<ffffffff810457e0>] process_one_work+0x156/0x38a
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