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Bug#830687: linux-image-4.5.0-0.bpo.2-amd64: livelock on reading /proc/mounts



Package: src:linux
Version: 4.5.4-1~bpo8+1
Severity: normal

NFS seems to have been getting progressively less and less reliable in
kernels>~4.0.  The latest manifestation on that for me is that having
an remote NFS machine go down today, and even after it came back up,
50 instances of /usr/lib/sysstat/sadc (5 minute cronjob) and a dozen
df's are stuck on the machine trying to access that remote mount.
What are they stuck on?  strace shows they're not succeeding in
reading /etc/mtab = /proc/mounts:
...
open("/etc/mtab", O_RDONLY|O_CLOEXEC)   = 3
fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67f044e000
read(3, 0-2-19:08:40, Sun Jul 10 root@dirac:/home/tconnors (bash)
73854,15> l /etc/mtab 
lrwxrwxrwx 1 root root 12 May 29 17:00 /etc/mtab -> /proc/mounts

Indeed, cat /proc/mounts doesn't return.

73855,16> ps axuf | grep proc.mounts 
...
tconnors 23264  0.0  0.0  10632   760 pts/53   D    19:00   0:00                      |           \_ cat /proc/mounts
...
73856,17> cat /proc/23264/stack 
[<ffffffff81317ea4>] call_rwsem_down_read_failed+0x14/0x30
[<ffffffff81209e8d>] m_start+0x1d/0x80
[<ffffffff8120ebeb>] seq_read+0x16b/0x3a0
[<ffffffff811eb4e1>] vfs_read+0x81/0x120
[<ffffffff811ec542>] SyS_read+0x52/0xc0
[<ffffffff815ba236>] system_call_fast_compare_end+0xc/0x6b
[<ffffffffffffffff>] 0xffffffffffffffff


-- Package-specific info:
** Version:
Linux version 4.5.0-0.bpo.2-amd64 (debian-kernel@lists.debian.org) (gcc version 4.9.2 (Debian 4.9.2-10) ) #1 SMP Debian 4.5.4-1~bpo8+1 (2016-05-13)

** Command line:
BOOT_IMAGE=/vmlinuz-4.5.0-0.bpo.2-amd64 root=/dev/mapper/dirac-root ro zswap.enabled=1

** Tainted: POE (12289)
 * Proprietary module has been loaded.
 * Out-of-tree module has been loaded.
 * Unsigned module has been loaded (currently expected).

** Kernel log:
[1112649.367575]  [<ffffffff811fade1>] ? filename_lookup+0xb1/0x180
[1112649.367581]  [<ffffffffc0ee1629>] ? nfs_statfs+0x79/0x180 [nfs]
[1112649.367582]  [<ffffffff811faa1f>] ? getname_flags+0x6f/0x1e0
[1112649.367584]  [<ffffffff8121f0ff>] ? user_statfs+0x3f/0xa0
[1112649.367586]  [<ffffffff8121f180>] ? SYSC_statfs+0x20/0x50
[1112649.367587]  [<ffffffff811f0689>] ? SYSC_newstat+0x39/0x60
[1112649.367589]  [<ffffffff815ba236>] ? system_call_fast_compare_end+0xc/0x6b
[1112649.367592] INFO: task sadc:11346 blocked for more than 120 seconds.
[1112649.367592]       Tainted: P           OE   4.5.0-0.bpo.2-amd64 #1
[1112649.367593] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[1112649.367594] sadc            D 0000000000000001     0 11346  11345 0x00000000
[1112649.367596]  ffff8800ca7a5180 ffff880108246140 ffff8803f6414000 ffff8803f6413bb0
[1112649.367597]  ffffffff81a88a18 ffffffff81a88a00 ffffffff00000000 ffffffff00000002
[1112649.367599]  ffffffff815b6451 ffff8800ca7a5180 ffffffff815b8efc ffff8803f6413b50
[1112649.367600] Call Trace:
[1112649.367602]  [<ffffffff815b6451>] ? schedule+0x31/0x80
[1112649.367603]  [<ffffffff815b8efc>] ? rwsem_down_write_failed+0x20c/0x340
[1112649.367610]  [<ffffffffc10f21bf>] ? nfs4_proc_lookup_common+0xbf/0x3b0 [nfsv4]
[1112649.367611]  [<ffffffff81317ed3>] ? call_rwsem_down_write_failed+0x13/0x20
[1112649.367612]  [<ffffffff815b86f9>] ? down_write+0x29/0x40
[1112649.367614]  [<ffffffff81209fc9>] ? mnt_set_expiry+0x19/0x30
[1112649.367620]  [<ffffffffc0eedf79>] ? nfs_d_automount+0xb9/0x1b0 [nfs]
[1112649.367622]  [<ffffffff811f5c11>] ? follow_managed+0x131/0x2d0
[1112649.367623]  [<ffffffff811f607b>] ? lookup_fast+0x12b/0x320
[1112649.367625]  [<ffffffff811f6a56>] ? walk_component+0x46/0x480
[1112649.367627]  [<ffffffff811f789d>] ? path_lookupat+0x5d/0x110
[1112649.367628]  [<ffffffff811fade1>] ? filename_lookup+0xb1/0x180
[1112649.367633]  [<ffffffffc0ee1629>] ? nfs_statfs+0x79/0x180 [nfs]
[1112649.367635]  [<ffffffff811faa1f>] ? getname_flags+0x6f/0x1e0
[1112649.367637]  [<ffffffff8121f0ff>] ? user_statfs+0x3f/0xa0
[1112649.367638]  [<ffffffff8121f180>] ? SYSC_statfs+0x20/0x50
[1112649.367640]  [<ffffffff811f0689>] ? SYSC_newstat+0x39/0x60
[1112649.367641]  [<ffffffff815ba236>] ? system_call_fast_compare_end+0xc/0x6b
[1112828.668378] CPU1: Core temperature above threshold, cpu clock throttled (total events = 3766348)
[1112828.668379] CPU5: Core temperature above threshold, cpu clock throttled (total events = 3766345)
[1112828.668380] CPU6: Package temperature above threshold, cpu clock throttled (total events = 5193799)
[1112828.668381] CPU2: Package temperature above threshold, cpu clock throttled (total events = 5193796)
[1112828.668383] CPU7: Package temperature above threshold, cpu clock throttled (total events = 5193801)
[1112828.668384] CPU3: Package temperature above threshold, cpu clock throttled (total events = 5193800)
[1112828.668386] CPU4: Package temperature above threshold, cpu clock throttled (total events = 5193790)
[1112828.668387] CPU0: Package temperature above threshold, cpu clock throttled (total events = 5193801)
[1112828.668388] CPU5: Package temperature above threshold, cpu clock throttled (total events = 5193798)
[1112828.668392] mce_notify_irq: 2 callbacks suppressed
[1112828.668393] mce: [Hardware Error]: Machine check events logged
[1112828.668399] CPU1: Package temperature above threshold, cpu clock throttled (total events = 5193803)
[1112828.668401] mce: [Hardware Error]: Machine check events logged
[1112828.670364] CPU1: Core temperature/speed normal
[1112828.670365] CPU5: Core temperature/speed normal
[1113128.672718] CPU5: Core temperature above threshold, cpu clock throttled (total events = 3802171)
[1113128.672720] CPU1: Core temperature above threshold, cpu clock throttled (total events = 3802174)
[1113128.672721] CPU3: Package temperature above threshold, cpu clock throttled (total events = 5247156)
[1113128.672723] CPU0: Package temperature above threshold, cpu clock throttled (total events = 5247157)
[1113128.672724] CPU4: Package temperature above threshold, cpu clock throttled (total events = 5247146)
[1113128.672726] CPU7: Package temperature above threshold, cpu clock throttled (total events = 5247157)
[1113128.672727] CPU2: Package temperature above threshold, cpu clock throttled (total events = 5247152)
[1113128.672729] CPU6: Package temperature above threshold, cpu clock throttled (total events = 5247155)
[1113128.672729] CPU1: Package temperature above threshold, cpu clock throttled (total events = 5247159)
[1113128.672735] mce_notify_irq: 1 callbacks suppressed
[1113128.672736] mce: [Hardware Error]: Machine check events logged
[1113128.672741] CPU5: Package temperature above threshold, cpu clock throttled (total events = 5247154)
[1113128.672744] mce: [Hardware Error]: Machine check events logged
[1113128.674745] CPU1: Core temperature/speed normal
[1113128.674748] CPU5: Core temperature/speed normal
[1113128.674753] CPU4: Package temperature/speed normal
[1113128.674757] CPU3: Package temperature/speed normal
[1113128.674760] CPU0: Package temperature/speed normal
[1113128.674763] CPU7: Package temperature/speed normal
[1113128.674767] CPU2: Package temperature/speed normal
[1113128.674770] CPU6: Package temperature/speed normal
[1113128.674773] CPU5: Package temperature/speed normal
[1113128.674809] CPU1: Package temperature/speed normal
[1113129.926651] CPU6: Core temperature/speed normal
[1113129.926654] CPU2: Core temperature/speed normal
[1113428.689094] CPU1: Core temperature above threshold, cpu clock throttled (total events = 3832285)
[1113428.689096] CPU5: Core temperature above threshold, cpu clock throttled (total events = 3832282)
[1113428.689097] CPU7: Package temperature above threshold, cpu clock throttled (total events = 5296782)
[1113428.689099] CPU4: Package temperature above threshold, cpu clock throttled (total events = 5296771)
[1113428.689101] CPU6: Package temperature above threshold, cpu clock throttled (total events = 5296780)
[1113428.689102] CPU0: Package temperature above threshold, cpu clock throttled (total events = 5296782)
[1113428.689103] CPU2: Package temperature above threshold, cpu clock throttled (total events = 5296777)
[1113428.689105] CPU3: Package temperature above threshold, cpu clock throttled (total events = 5296781)
[1113428.689105] CPU5: Package temperature above threshold, cpu clock throttled (total events = 5296779)
[1113428.689110] mce_notify_irq: 4 callbacks suppressed
[1113428.689111] mce: [Hardware Error]: Machine check events logged
[1113428.689116] CPU1: Package temperature above threshold, cpu clock throttled (total events = 5296784)
[1113428.689118] mce: [Hardware Error]: Machine check events logged
[1113428.690118] CPU4: Package temperature/speed normal
[1113428.690120] CPU0: Package temperature/speed normal
[1113428.690124] CPU6: Package temperature/speed normal
[1113428.690128] CPU1: Core temperature/speed normal
[1113428.690131] CPU5: Core temperature/speed normal
[1113428.690135] CPU7: Package temperature/speed normal
[1113428.690138] CPU3: Package temperature/speed normal
[1113428.690141] CPU2: Package temperature/speed normal
[1113428.690143] CPU1: Package temperature/speed normal
[1113428.690144] CPU5: Package temperature/speed normal
[1113430.274784] CPU2: Core temperature above threshold, cpu clock throttled (total events = 1637344)
[1113430.274785] CPU6: Core temperature above threshold, cpu clock throttled (total events = 1637344)
[1113430.277809] CPU6: Core temperature/speed normal
[1113430.277812] CPU2: Core temperature/speed normal

** Model information
sys_vendor: Notebook                        
product_name: P15SM                           
product_version: Not Applicable                  
chassis_vendor: Notebook                        
chassis_version: N/A                             
bios_vendor: American Megatrends Inc.
bios_version: 4.6.5
board_vendor: Notebook                        
board_name: P15SM                           
board_version: Not Applicable                  

** Loaded modules:
ipt_REJECT(E)
nf_reject_ipv4(E)
nfsv3(E)
nls_iso8859_1(E)
nls_cp437(E)
vfat(E)
fat(E)
udp_diag(E)
tcp_diag(E)
inet_diag(E)
xt_multiport(E)
iptable_filter(E)
ip_tables(E)
x_tables(E)
nfsv4(E)
dns_resolver(E)
vmw_vsock_vmci_transport(E)
vsock(E)
nfnetlink_queue(E)
vmw_vmci(E)
nfnetlink_log(E)
nfnetlink(E)
bnep(E)
bluetooth(E)
cpufreq_conservative(E)
cpufreq_powersave(E)
cpufreq_userspace(E)
cpufreq_stats(E)
bbswitch(OE)
autofs4(E)
pci_stub(E)
vboxpci(OE)
vboxnetadp(OE)
vboxnetflt(OE)
vboxdrv(OE)
binfmt_misc(E)
uinput(E)
rpcsec_gss_krb5(E)
nfsd(E)
auth_rpcgss(E)
nfs_acl(E)
nfs(E)
lockd(E)
grace(E)
fscache(E)
sunrpc(E)
loop(E)
cuse(E)
fuse(E)
parport_pc(E)
ppdev(E)
lp(E)
parport(E)
intel_rapl(E)
x86_pkg_temp_thermal(E)
intel_powerclamp(E)
coretemp(E)
kvm_intel(E)
kvm(E)
snd_usb_audio(E)
snd_usbmidi_lib(E)
snd_rawmidi(E)
snd_seq_device(E)
irqbypass(E)
crct10dif_pclmul(E)
snd_hda_codec_hdmi(E)
uvcvideo(E)
videobuf2_vmalloc(E)
videobuf2_memops(E)
videobuf2_v4l2(E)
videobuf2_core(E)
videodev(E)
media(E)
crc32_pclmul(E)
ghash_clmulni_intel(E)
hmac(E)
drbg(E)
ansi_cprng(E)
aesni_intel(E)
aes_x86_64(E)
i915(E)
lrw(E)
gf128mul(E)
arc4(E)
glue_helper(E)
iwldvm(E)
iTCO_wdt(E)
iTCO_vendor_support(E)
snd_hda_codec_realtek(E)
snd_hda_codec_generic(E)
mac80211(E)
mxm_wmi(E)
snd_hda_intel(E)
drm_kms_helper(E)
mei_me(E)
ablk_helper(E)
snd_hda_codec(E)
iwlwifi(E)
snd_hda_core(E)
snd_hwdep(E)
snd_pcm(E)
evdev(E)
cfg80211(E)
snd_timer(E)
cryptd(E)
joydev(E)
ie31200_edac(E)
snd(E)
serio_raw(E)
drm(E)
i2c_algo_bit(E)
rtsx_pci_ms(E)
memstick(E)
pcspkr(E)
i2c_i801(E)
mei(E)
rfkill(E)
edac_core(E)
soundcore(E)
lpc_ich(E)
tpm_infineon(E)
video(E)
shpchp(E)
ac(E)
tpm_tis(E)
tpm(E)
processor(E)
button(E)
battery(E)
wmi(E)
zfs(POE)
zunicode(POE)
zcommon(POE)
znvpair(POE)
spl(OE)
zavl(POE)
ext4(E)
crc16(E)
mbcache(E)
jbd2(E)
uas(E)
usb_storage(E)
btrfs(E)
xor(E)
raid6_pq(E)
dm_mod(E)
hid_generic(E)
sg(E)
usbhid(E)
hid(E)
sd_mod(E)
rtsx_pci_sdmmc(E)
mmc_core(E)
ahci(E)
libahci(E)
crc32c_intel(E)
xhci_pci(E)
ehci_pci(E)
xhci_hcd(E)
libata(E)
ehci_hcd(E)
psmouse(E)
firewire_ohci(E)
scsi_mod(E)
rtsx_pci(E)
r8169(E)
firewire_core(E)
usbcore(E)
crc_itu_t(E)
mii(E)
mfd_core(E)
usb_common(E)
thermal(E)
fjes(E)

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller [8086:0c04] (rev 06)
	Subsystem: CLEVO/KAPOK Computer Device [1558:5106]
	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>

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 26
	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: 00000000e0000000-00000000f1ffffff
	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

00:02.0 VGA compatible controller [0300]: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA controller])
	Subsystem: CLEVO/KAPOK Computer Device [1558:5106]
	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 34
	Region 0: Memory at f7400000 (64-bit, non-prefetchable) [size=4M]
	Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M]
	Region 4: I/O ports at f000 [size=64]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: <access denied>
	Kernel driver in use: i915

00:03.0 Audio device [0403]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller [8086:0c0c] (rev 06)
	Subsystem: CLEVO/KAPOK Computer Device [1558:5106]
	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 35
	Region 0: Memory at f7b14000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel

00:14.0 USB controller [0c03]: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI [8086:8c31] (rev 04) (prog-if 30 [XHCI])
	Subsystem: CLEVO/KAPOK Computer Device [1558:5106]
	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 29
	Region 0: Memory at f7b00000 (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: CLEVO/KAPOK Computer Device [1558:5106]
	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 f7b1e000 (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 04) (prog-if 20 [EHCI])
	Subsystem: CLEVO/KAPOK Computer Device [1558:5106]
	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 f7b1c000 (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 04)
	Subsystem: CLEVO/KAPOK Computer Device [1558:5106]
	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 f7b10000 (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 d4) (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 16
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	I/O behind bridge: 00002000-00002fff
	Memory behind bridge: cf200000-cf3fffff
	Prefetchable memory behind bridge: 00000000cf400000-00000000cf5fffff
	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.1 PCI bridge [0604]: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #2 [8086:8c12] (rev d4) (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 B routed to IRQ 17
	Bus: primary=00, secondary=03, subordinate=04, sec-latency=0
	Memory behind bridge: f7a00000-f7afffff
	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.2 PCI bridge [0604]: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 [8086:8c14] (rev d4) (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 C routed to IRQ 18
	Bus: primary=00, secondary=05, subordinate=05, sec-latency=0
	I/O behind bridge: 0000d000-0000dfff
	Memory behind bridge: f7900000-f79fffff
	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.3 PCI bridge [0604]: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #4 [8086:8c16] (rev d4) (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 19
	Bus: primary=00, secondary=06, subordinate=06, sec-latency=0
	Memory behind bridge: f7800000-f78fffff
	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 04) (prog-if 20 [EHCI])
	Subsystem: CLEVO/KAPOK Computer Device [1558:5106]
	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 f7b1b000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci

00:1f.0 ISA bridge [0601]: Intel Corporation HM87 Express LPC Controller [8086:8c4b] (rev 04)
	Subsystem: CLEVO/KAPOK Computer Device [1558:5106]
	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] [8086:8c03] (rev 04) (prog-if 01 [AHCI 1.0])
	Subsystem: CLEVO/KAPOK Computer Device [1558:5106]
	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 B routed to IRQ 30
	Region 0: I/O ports at f0b0 [size=8]
	Region 1: I/O ports at f0a0 [size=4]
	Region 2: I/O ports at f090 [size=8]
	Region 3: I/O ports at f080 [size=4]
	Region 4: I/O ports at f060 [size=32]
	Region 5: Memory at f7b1a000 (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 04)
	Subsystem: CLEVO/KAPOK Computer Device [1558:5106]
	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 18
	Region 0: Memory at f7b19000 (64-bit, non-prefetchable) [size=256]
	Region 4: I/O ports at f040 [size=32]

01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK104M [GeForce GTX 670MX] [10de:11a1] (rev ff) (prog-if ff)
	!!! Unknown header type 7f

03:00.0 PCI bridge [0604]: Texas Instruments XIO2213A/B/XIO2221 PCI Express to PCI Bridge [Cheetah Express] [104c:823e] (rev 01) (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
	Bus: primary=03, secondary=04, subordinate=04, sec-latency=32
	Memory behind bridge: f7a00000-f7afffff
	Secondary status: 66MHz+ FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>

04:00.0 FireWire (IEEE 1394) [0c00]: Texas Instruments XIO2213A/B/XIO2221 IEEE-1394b OHCI Controller [Cheetah Express] [104c:823f] (rev 01) (prog-if 10 [OHCI])
	Subsystem: CLEVO/KAPOK Computer Device [1558:5106]
	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: 32 (500ns min, 1000ns max), Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 17
	Region 0: Memory at f7a04000 (32-bit, non-prefetchable) [size=2K]
	Region 1: Memory at f7a00000 (32-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: firewire_ohci

05:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTL8411 PCI Express Card Reader [10ec:5289] (rev 01)
	Subsystem: CLEVO/KAPOK Computer Device [1558:5106]
	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 28
	Region 0: Memory at f7900000 (32-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: rtsx_pci

05:00.2 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0a)
	Subsystem: CLEVO/KAPOK Computer Device [1558:5106]
	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 27
	Region 0: I/O ports at d000 [size=256]
	Region 2: Memory at f2104000 (64-bit, prefetchable) [size=4K]
	Region 4: Memory at f2100000 (64-bit, prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: r8169

06:00.0 Network controller [0280]: Intel Corporation Centrino Ultimate-N 6300 [8086:422b] (rev 3e)
	Subsystem: Intel Corporation Centrino Ultimate-N 6300 3x3 AGN [8086:1101]
	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 31
	Region 0: Memory at f7800000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: iwlwifi



-- System Information:
Debian Release: 8.5
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable'), (5, 'testing'), (2, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.5.0-0.bpo.2-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)

Versions of packages linux-image-4.5.0-0.bpo.2-amd64 depends on:
ii  debconf [debconf-2.0]                   1.5.56
ii  initramfs-tools [linux-initramfs-tool]  0.120+deb8u2
ii  kmod                                    18-3
ii  linux-base                              3.5

Versions of packages linux-image-4.5.0-0.bpo.2-amd64 recommends:
ii  firmware-linux-free  3.3
ii  irqbalance           1.0.6-3

Versions of packages linux-image-4.5.0-0.bpo.2-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  grub-pc                 2.02~beta2-22+deb8u1
pn  linux-doc-4.5           <none>

Versions of packages linux-image-4.5.0-0.bpo.2-amd64 is related to:
pn  firmware-amd-graphics     <none>
pn  firmware-atheros          <none>
pn  firmware-bnx2             <none>
pn  firmware-bnx2x            <none>
pn  firmware-brcm80211        <none>
pn  firmware-cavium           <none>
pn  firmware-intel-sound      <none>
pn  firmware-intelwimax       <none>
pn  firmware-ipw2x00          <none>
pn  firmware-ivtv             <none>
ii  firmware-iwlwifi          0.43
pn  firmware-libertas         <none>
ii  firmware-linux-nonfree    0.43
pn  firmware-misc-nonfree     <none>
pn  firmware-myricom          <none>
pn  firmware-netxen           <none>
pn  firmware-qlogic           <none>
ii  firmware-realtek          20160110-1
pn  firmware-samsung          <none>
pn  firmware-siano            <none>
pn  firmware-ti-connectivity  <none>
pn  xen-hypervisor            <none>

-- debconf information:
  linux-image-4.5.0-0.bpo.2-amd64/prerm/removing-running-kernel-4.5.0-0.bpo.2-amd64: true


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