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Bug#805873: linux-image-4.3.0-trunk-amd64: hard lockup under load



Package: src:linux
Version: 4.3-1~exp1
Severity: important

After running under full load for about half a day, my kernel starts to misbehave with soft and hard lockups. A trace of a hard lockup is included below. Similar problems occurred for the stretch kernel, which is why I tried the experimental version.

-- Package-specific info:
** Version:
Linux version 4.3.0-trunk-amd64 (debian-kernel@lists.debian.org) (gcc version 5.2.1 20151028 (Debian 5.2.1-23) ) #1 SMP Debian 4.3-1~exp1 (2015-11-04)

** Command line:
BOOT_IMAGE=/vmlinuz-4.3.0-trunk-amd64 root=/dev/mapper/mark--inspiron--vg-root ro quiet consoleblank=0

** Not tainted

** Kernel log:
[35834.993450] ------------[ cut here ]------------
[35834.993456] WARNING: CPU: 2 PID: 22025 at /build/linux-7sjCdl/linux-4.3/kernel/watchdog.c:331 watchdog_overflow_callback+0x75/0xa0()
[35834.993458] Watchdog detected hard LOCKUP on cpu 2
[35834.993459] Modules linked in: nls_utf8 nls_cp437 vfat fat intel_rapl snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_codec_generic nouveau arc4 iosf_mbi x86_pkg_tem
ath9k ath9k_common ath9k_hw intel_powerclamp ath ath3k btusb coretemp mxm_wmi mac80211 btrtl btbcm btintel kvm_intel bluetooth cfg80211 rfkill kvm wmi ttm drm_kms_helper
nd_pcm i2c_algo_bit joydev iTCO_vendor_support snd_timer dcdbas dell_smm_hwmon evdev tpm_tis psmouse tpm snd serio_raw shpchp sg pcspkr lpc_ich mei_me mfd_core soundcore
efi_pstore efivars button efivarfs autofs4 ext4 crc16 mbcache jbd2 algif_skcipher af_alg ums_realtek uas usb_storage dm_crypt dm_mod hid_generic usbhid hid sr_mod cdrom 
rc32c_intel jitterentropy_rng sha256_ssse3 sha256_generic hmac drbg ansi_cprng aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd ahci libahci libata xhc
hcd r8169 mii usbcore usb_common fan thermal
[35834.993516] CPU: 2 PID: 22025 Comm: xxxxxxxx Not tainted 4.3.0-trunk-amd64 #1 Debian 4.3-1~exp1
[35834.993517] Hardware name: Dell Inc. Inspiron 3847/088DT1       , BIOS A08 06/29/2015
[35834.993519]  ffffffff817f9528 ffffffff812c53a9 ffff88041ec85ba8 ffffffff8106ebad
[35834.993521]  ffff88040c1ec800 ffff88041ec85bf8 ffff88041ec85c80 ffff88041ec85ef8
[35834.993523]  0000000000000000 ffffffff8106ec2c ffffffff817f9500 0000000000000020
[35834.993525] Call Trace:
[35834.993526]  <NMI>  [<ffffffff812c53a9>] ? dump_stack+0x40/0x57
[35834.993532]  [<ffffffff8106ebad>] ? warn_slowpath_common+0x7d/0xb0
[35834.993534]  [<ffffffff8106ec2c>] ? warn_slowpath_fmt+0x4c/0x50
[35834.993536]  [<ffffffff81108b95>] ? watchdog_overflow_callback+0x75/0xa0
[35834.993539]  [<ffffffff81147da6>] ? __perf_event_overflow+0x86/0x1c0
[35834.993542]  [<ffffffff81030dbe>] ? intel_pmu_handle_irq+0x1ce/0x430
[35834.993545]  [<ffffffff81027ff1>] ? perf_event_nmi_handler+0x21/0x40
[35834.993548]  [<ffffffff81017f00>] ? nmi_handle+0x80/0x110
[35834.993550]  [<ffffffff810183ba>] ? default_do_nmi+0x3a/0xf0
[35834.993551]  [<ffffffff8101854b>] ? do_nmi+0xdb/0x130
[35834.993554]  [<ffffffff81555dd1>] ? end_repeat_nmi+0x1a/0x1e
[35834.993557]  [<ffffffff810aea92>] ? native_queued_spin_lock_slowpath+0x152/0x170
[35834.993559]  [<ffffffff810aea92>] ? native_queued_spin_lock_slowpath+0x152/0x170
[35834.993561]  [<ffffffff810aea92>] ? native_queued_spin_lock_slowpath+0x152/0x170
[35834.993561]  <<EOE>>  <IRQ>  [<ffffffff815536d2>] ? _raw_spin_lock_irqsave+0x32/0x40
[35834.993584]  [<ffffffffa08a70a1>] ? nvkm_fantog_update+0x41/0x100 [nouveau]
[35834.993600]  [<ffffffffa08a93e1>] ? nv04_timer_alarm_init+0x21/0x40 [nouveau]
[35834.993614]  [<ffffffffa08a71b1>] ? nvkm_fantog_set+0x31/0x40 [nouveau]
[35834.993626]  [<ffffffffa08a6714>] ? nvkm_fan_update+0xb4/0x1f0 [nouveau]
[35834.993635]  [<ffffffffa08a9107>] ? nvkm_timer_alarm_trigger+0xe7/0x120 [nouveau]
[35834.993644]  [<ffffffffa08a715b>] ? nvkm_fantog_update+0xfb/0x100 [nouveau]
[35834.993652]  [<ffffffffa08a9107>] ? nvkm_timer_alarm_trigger+0xe7/0x120 [nouveau]
[35834.993661]  [<ffffffffa08a94bf>] ? nv04_timer_intr+0x5f/0xa0 [nouveau]
[35834.993670]  [<ffffffffa089f820>] ? nvkm_mc_intr+0x70/0x110 [nouveau]
[35834.993679]  [<ffffffffa08a3ab1>] ? nvkm_pci_intr+0x41/0x70 [nouveau]
[35834.993681]  [<ffffffff810bd359>] ? handle_irq_event_percpu+0x69/0x170
[35834.993682]  [<ffffffff810bd4a0>] ? handle_irq_event+0x40/0x60
[35834.993684]  [<ffffffff810c02eb>] ? handle_edge_irq+0x7b/0x140
[35834.993685]  [<ffffffff81016d89>] ? handle_irq+0x19/0x30
[35834.993687]  [<ffffffff81556706>] ? do_IRQ+0x46/0xd0
[35834.993688]  [<ffffffff815543c2>] ? common_interrupt+0x82/0x82
[35834.993688]  <EOI> 
[35834.993690] ---[ end trace 5f78f49b5260457d ]---

** Model information
sys_vendor: Dell Inc.
product_name: Inspiron 3847
product_version:   
chassis_vendor: Dell Inc.
chassis_version: 
bios_vendor: Dell Inc.
bios_version: A08
board_vendor: Dell Inc.
board_name: 088DT1       
board_version: A01

** Loaded modules:
nls_utf8
nls_cp437
vfat
fat
ath3k
btusb
btrtl
btbcm
nouveau
btintel
bluetooth
arc4
intel_rapl
iosf_mbi
ath9k
mxm_wmi
wmi
x86_pkg_temp_thermal
intel_powerclamp
coretemp
ttm
drm_kms_helper
drm
ath9k_common
ath9k_hw
ath
kvm_intel
mac80211
kvm
snd_hda_codec_realtek
snd_hda_codec_hdmi
snd_hda_codec_generic
cfg80211
iTCO_wdt
rfkill
iTCO_vendor_support
i2c_algo_bit
tpm_tis
dcdbas
dell_smm_hwmon
snd_hda_intel
snd_hda_codec
snd_hda_core
lpc_ich
mei_me
psmouse
sg
snd_hwdep
tpm
mfd_core
shpchp
pcspkr
joydev
evdev
serio_raw
mei
snd_pcm
snd_timer
i2c_i801
snd
soundcore
battery
video
processor
efi_pstore
efivars
button
efivarfs
autofs4
ext4
crc16
mbcache
jbd2
algif_skcipher
af_alg
uas
usb_storage
dm_crypt
dm_mod
hid_generic
usbhid
hid
sr_mod
cdrom
sd_mod
crct10dif_pclmul
crc32_pclmul
crc32c_intel
jitterentropy_rng
sha256_ssse3
sha256_generic
hmac
drbg
ansi_cprng
aesni_intel
aes_x86_64
lrw
gf128mul
glue_helper
ablk_helper
cryptd
xhci_pci
ahci
libahci
xhci_hcd
libata
scsi_mod
ehci_pci
ehci_hcd
r8169
mii
usbcore
usb_common
fan
thermal

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 4th Gen Core Processor DRAM Controller [8086:0c00] (rev 06)
	Subsystem: Dell Device [1028:0622]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
	Latency: 0
	Capabilities: <access denied>
	Kernel driver in use: hsw_uncore

00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller [8086:0c01] (rev 06) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 25
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	I/O behind bridge: 0000e000-0000efff
	Memory behind bridge: f6000000-f70fffff
	Prefetchable memory behind bridge: 00000000e8000000-00000000f1ffffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA+ MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:14.0 USB controller [0c03]: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI [8086:8c31] (rev 05) (prog-if 30 [XHCI])
	Subsystem: Dell Device [1028:0622]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 30
	Region 0: Memory at f7300000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd

00:16.0 Communication controller [0780]: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 [8086:8c3a] (rev 04)
	Subsystem: Dell Device [1028:0622]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 32
	Region 0: Memory at f731a000 (64-bit, non-prefetchable) [size=16]
	Capabilities: <access denied>
	Kernel driver in use: mei_me

00:1a.0 USB controller [0c03]: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 [8086:8c2d] (rev 05) (prog-if 20 [EHCI])
	Subsystem: Dell Device [1028:0622]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at f7318000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci

00:1b.0 Audio device [0403]: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller [8086:8c20] (rev 05)
	Subsystem: Dell Device [1028:0622]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 33
	Region 0: Memory at f7310000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel

00:1c.0 PCI bridge [0604]: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 [8086:8c10] (rev d5) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 26
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	I/O behind bridge: 00002000-00002fff
	Memory behind bridge: e0000000-e01fffff
	Prefetchable memory behind bridge: 00000000e0200000-00000000e03fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1c.3 PCI bridge [0604]: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #4 [8086:8c16] (rev d5) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin D routed to IRQ 27
	Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
	I/O behind bridge: 0000d000-0000dfff
	Memory behind bridge: f7200000-f72fffff
	Prefetchable memory behind bridge: 00000000f2100000-00000000f21fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1c.4 PCI bridge [0604]: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #5 [8086:8c18] (rev d5) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 28
	Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
	Memory behind bridge: f7100000-f71fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1d.0 USB controller [0c03]: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 [8086:8c26] (rev 05) (prog-if 20 [EHCI])
	Subsystem: Dell Device [1028:0622]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 23
	Region 0: Memory at f7317000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci

00:1f.0 ISA bridge [0601]: Intel Corporation C220 Series Chipset Family H81 Express LPC Controller [8086:8c5c] (rev 05)
	Subsystem: Dell Device [1028:0622]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Capabilities: <access denied>
	Kernel driver in use: lpc_ich

00:1f.2 SATA controller [0106]: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] [8086:8c02] (rev 05) (prog-if 01 [AHCI 1.0])
	Subsystem: Dell Device [1028:0622]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin D routed to IRQ 31
	Region 0: I/O ports at f070 [size=8]
	Region 1: I/O ports at f060 [size=4]
	Region 2: I/O ports at f050 [size=8]
	Region 3: I/O ports at f040 [size=4]
	Region 4: I/O ports at f020 [size=32]
	Region 5: Memory at f7316000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci

00:1f.3 SMBus [0c05]: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller [8086:8c22] (rev 05)
	Subsystem: Dell Device [1028:0622]
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin C routed to IRQ 0
	Region 0: Memory at f7315000 (64-bit, non-prefetchable) [size=256]
	Region 4: I/O ports at f000 [size=32]

01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK208 [GeForce GT 720] [10de:1286] (rev a1) (prog-if 00 [VGA controller])
	Subsystem: NVIDIA Corporation Device [10de:1087]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 34
	Region 0: Memory at f6000000 (32-bit, non-prefetchable) [size=16M]
	Region 1: Memory at e8000000 (64-bit, prefetchable) [size=128M]
	Region 3: Memory at f0000000 (64-bit, prefetchable) [size=32M]
	Region 5: I/O ports at e000 [size=128]
	Expansion ROM at f7000000 [disabled] [size=512K]
	Capabilities: <access denied>
	Kernel driver in use: nouveau

01:00.1 Audio device [0403]: NVIDIA Corporation GK208 HDMI/DP Audio Controller [10de:0e0f] (rev a1)
	Subsystem: NVIDIA Corporation Device [10de:1087]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 17
	Region 0: Memory at f7080000 (32-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel

03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c)
	Subsystem: Dell Device [1028:0622]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 29
	Region 0: I/O ports at d000 [size=256]
	Region 2: Memory at f7200000 (64-bit, non-prefetchable) [size=4K]
	Region 4: Memory at f2100000 (64-bit, prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: r8169

04:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01)
	Subsystem: Dell Device [1028:020c]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at f7100000 (64-bit, non-prefetchable) [size=512K]
	Expansion ROM at f7180000 [disabled] [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: ath9k


** USB devices:
Bus 002 Device 002: ID 8087:8000 Intel Corp. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 003: ID 0781:5567 SanDisk Corp. Cruzer Blade
Bus 003 Device 002: ID 046d:c31c Logitech, Inc. Keyboard K120
Bus 003 Device 004: ID 0cf3:0036 Atheros Communications, Inc. 
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.3.0-trunk-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages linux-image-4.3.0-trunk-amd64 depends on:
ii  debconf [debconf-2.0]                   1.5.58
ii  initramfs-tools [linux-initramfs-tool]  0.120
ii  kmod                                    21-1
ii  linux-base                              4.0

Versions of packages linux-image-4.3.0-trunk-amd64 recommends:
ii  firmware-linux-free  3.4
ii  irqbalance           1.0.9-1

Versions of packages linux-image-4.3.0-trunk-amd64 suggests:
pn  debian-kernel-handbook         <none>
pn  grub-pc | grub-efi | extlinux  <none>
pn  linux-doc-4.3                  <none>

Versions of packages linux-image-4.3.0-trunk-amd64 is related to:
pn  firmware-atheros                         <none>
pn  firmware-bnx2                            <none>
pn  firmware-bnx2x                           <none>
pn  firmware-brcm80211                       <none>
pn  firmware-intelwimax                      <none>
pn  firmware-ipw2x00                         <none>
pn  firmware-ivtv                            <none>
pn  firmware-iwlwifi                         <none>
pn  firmware-libertas                        <none>
pn  firmware-linux                           <none>
ii  firmware-linux-nonfree                   20151018-2
ii  firmware-misc-nonfree [firmware-ralink]  20151018-2
pn  firmware-myricom                         <none>
pn  firmware-netxen                          <none>
pn  firmware-qlogic                          <none>
ii  firmware-realtek                         20151018-2
pn  xen-hypervisor                           <none>

-- debconf information:
  linux-image-4.3.0-trunk-amd64/prerm/removing-running-kernel-4.3.0-trunk-amd64: true
  linux-image-4.3.0-trunk-amd64/postinst/mips-initrd-4.3.0-trunk-amd64:
  linux-image-4.3.0-trunk-amd64/postinst/depmod-error-initrd-4.3.0-trunk-amd64: false


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