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Bug#815425: linux-image-3.16.0-4-amd64: cifs kernel lockup with rsync



Package: src:linux
Version: 3.16.7-ckt20-1+deb8u3
Severity: normal

I have a cifs mount from the NAS monitored by the inotify (minidlna
software). Usually files are transferred using the 'cp' utility. Once I invoked
rsync to copy files from the ext3 filesystem to the cifs mount. Then rsync
hanged with a following kernel message, mount.cifs and sync also hanged.

Dont's sure is it only rsync's fault because I interrupted a copy
operation before the faulty rsync invocation. Other machines can mount this
volume succesfully. Restarting samba on the NAS helped to umount a share
but subsequent remount hanged.

fstab entry:

//srv/movies                             /mnt/movies           cifs         defaults,credentials=/etc/samba.cred,iocharset=utf8,uid=irix,gid=users,file_mode=0775,dir_mode=0775      0 0


Kernel log for the crash:

Feb 21 14:40:06 atom kernel: [362565.937839] CIFS VFS: No writable handles for inode
....a lot of times...
Feb 21 14:40:16 atom kernel: [362575.898743] CIFS VFS: No writable handles for inode
Feb 21 14:43:08 atom kernel: [362748.037650] INFO: task kworker/u8:1:30769 blocked for more than 120 seconds.
Feb 21 14:43:08 atom kernel: [362748.037679]       Tainted: G         C O  3.16.0-4-amd64 #1
Feb 21 14:43:08 atom kernel: [362748.037699] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Feb 21 14:43:08 atom kernel: [362748.037732] kworker/u8:1    D ffff880074ac2f78     0 30769      2 0x00000080
Feb 21 14:43:08 atom kernel: [362748.037744] Workqueue: writeback bdi_writeback_workfn (flush-cifs-5)
Feb 21 14:43:08 atom kernel: [362748.037748]  ffff880074ac2b20 0000000000000046 0000000000012f00 ffff880114e7bfd8
Feb 21 14:43:08 atom kernel: [362748.037752]  0000000000012f00 ffff880074ac2b20 ffff880114e7b9f0 ffff88013ffbdb60
Feb 21 14:43:08 atom kernel: [362748.037755]  0000000000000002 ffffffff811c1510 ffff880114e7b9e0 ffff880046ba3a00
Feb 21 14:43:08 atom kernel: [362748.037759] Call Trace:
Feb 21 14:43:08 atom kernel: [362748.037768]  [<ffffffff811c1510>] ? unlock_two_nondirectories+0x60/0x60
Feb 21 14:43:08 atom kernel: [362748.037772]  [<ffffffff811c151a>] ? inode_wait+0xa/0x10
Feb 21 14:43:08 atom kernel: [362748.037777]  [<ffffffff81510b4c>] ? __wait_on_bit+0x5c/0x90
Feb 21 14:43:08 atom kernel: [362748.037781]  [<ffffffff811cea9b>] ? __inode_wait_for_writeback+0x9b/0xc0
Feb 21 14:43:08 atom kernel: [362748.037786]  [<ffffffff810a7bd0>] ? autoremove_wake_function+0x30/0x30
Feb 21 14:43:08 atom kernel: [362748.037796]  [<ffffffff811d1dad>] ? inode_wait_for_writeback+0x1d/0x30
Feb 21 14:43:08 atom kernel: [362748.037799]  [<ffffffff811c20b9>] ? evict+0x99/0x170
Feb 21 14:43:08 atom kernel: [362748.037803]  [<ffffffff811bded8>] ? __dentry_kill+0x168/0x1d0
Feb 21 14:43:08 atom kernel: [362748.037807]  [<ffffffff811bdfde>] ? dput+0x9e/0x170
Feb 21 14:43:08 atom kernel: [362748.037818]  [<ffffffffa06f37ca>] ? cifsFileInfo_put+0x23a/0x370 [cifs]
Feb 21 14:43:08 atom kernel: [362748.037827]  [<ffffffffa06f5898>] ? find_writable_file+0x188/0x210 [cifs]
Feb 21 14:43:08 atom kernel: [362748.037835]  [<ffffffffa06f5c75>] ? cifs_writepages+0x355/0x680 [cifs]
Feb 21 14:43:08 atom kernel: [362748.037839]  [<ffffffff811ceb79>] ? __writeback_single_inode+0x39/0x220
Feb 21 14:43:08 atom kernel: [362748.037843]  [<ffffffff811cf7e4>] ? writeback_sb_inodes+0x1a4/0x3e0
Feb 21 14:43:08 atom kernel: [362748.037847]  [<ffffffff811cfab6>] ? __writeback_inodes_wb+0x96/0xc0
Feb 21 14:43:08 atom kernel: [362748.037851]  [<ffffffff811cfd23>] ? wb_writeback+0x243/0x2d0
Feb 21 14:43:08 atom kernel: [362748.037855]  [<ffffffff811d2061>] ? bdi_writeback_workfn+0x2a1/0x420
Feb 21 14:43:08 atom kernel: [362748.037859]  [<ffffffff81081762>] ? process_one_work+0x172/0x420
Feb 21 14:43:08 atom kernel: [362748.037863]  [<ffffffff81081df3>] ? worker_thread+0x113/0x4f0
Feb 21 14:43:08 atom kernel: [362748.037866]  [<ffffffff81081ce0>] ? rescuer_thread+0x2d0/0x2d0
Feb 21 14:43:08 atom kernel: [362748.037871]  [<ffffffff8108805d>] ? kthread+0xbd/0xe0
Feb 21 14:43:08 atom kernel: [362748.037875]  [<ffffffff81087fa0>] ? kthread_create_on_node+0x180/0x180
Feb 21 14:43:08 atom kernel: [362748.037879]  [<ffffffff81513c58>] ? ret_from_fork+0x58/0x90
Feb 21 14:43:08 atom kernel: [362748.037883]  [<ffffffff81087fa0>] ? kthread_create_on_node+0x180/0x180
....a lot of times...
Feb 21 14:54:10 atom kernel: [363411.970779] CIFS VFS: Error -104 sending data on socket to server
Feb 21 14:54:10 atom kernel: [363411.985478] CIFS VFS: Error -104 sending data on socket to server
Feb 21 14:54:10 atom kernel: [363411.999847] CIFS VFS: Error -32 sending data on socket to server
Feb 21 14:54:10 atom kernel: [363412.014301] CIFS VFS: Error -104 sending data on socket to server
Feb 21 14:54:11 atom kernel: [363412.028709] CIFS VFS: Error -104 sending data on socket to server
....a lot of times...



-- Package-specific info:
** Version:
Linux version 3.16.0-4-amd64 (debian-kernel@lists.debian.org) (gcc version 4.8.4 (Debian 4.8.4-1) ) #1 SMP Debian 3.16.7-ckt20-1+deb8u3 (2016-01-17)

** Command line:
BOOT_IMAGE=/vmlinuz-3.16.0-4-amd64 root=/dev/mapper/atom-root ro acpi_enforce_resources=lax selinux=1 security=selinux group_enable=memory swapaccount=1 fsck.mode=skip quiet nomodeset

** Tainted: CO (5120)
 * Module from drivers/staging has been loaded.
 * Out-of-tree module has been loaded.

** Kernel log:
[   11.027110] input: PC Speaker as /devices/platform/pcspkr/input/input5
[   11.286049] alg: No test for crc32 (crc32-pclmul)
[   11.496153] systemd-udevd[237]: renamed network interface eth1 to eth2
[   11.512235] systemd-udevd[233]: renamed network interface eth0 to eth1
[   11.844202] snd_hda_intel 0000:00:1b.0: irq 107 for MSI/MSI-X
[   12.086923] intel_rapl: Found RAPL domain package
[   12.086934] intel_rapl: Found RAPL domain core
[   12.139096] sound hdaudioC0D0: autoconfig: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:line
[   12.139105] sound hdaudioC0D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[   12.139112] sound hdaudioC0D0:    hp_outs=1 (0x1b/0x0/0x0/0x0/0x0)
[   12.139117] sound hdaudioC0D0:    mono: mono_out=0x0
[   12.139122] sound hdaudioC0D0:    dig-out=0x11/0x0
[   12.139126] sound hdaudioC0D0:    inputs:
[   12.139133] sound hdaudioC0D0:      Rear Mic=0x18
[   12.139139] sound hdaudioC0D0:      Front Mic=0x19
[   12.139144] sound hdaudioC0D0:      Line=0x1a
[   12.139150] sound hdaudioC0D0:      CD=0x1c
[   12.272736] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/sound/card0/hdaudioC0D0/input7
[   12.273670] input: HDA Intel PCH Rear Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input8
[   12.273778] input: HDA Intel PCH Front Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input9
[   12.273884] input: HDA Intel PCH Line as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
[   12.273989] input: HDA Intel PCH Line Out as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11
[   12.274094] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12
[   12.378851] ppdev: user-space parallel port driver
[   12.440920] iTCO_vendor_support: vendor-support=0
[   12.466186] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11
[   12.466268] iTCO_wdt: Found a Bay Trail SoC TCO device (Version=3, TCOBASE=0x0460)
[   12.466526] iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
[   12.855477] Adding 6012924k swap on /dev/mapper/atom-swap_1.  Priority:-1 extents:1 across:6012924k FS
[   13.405314] EXT4-fs (sda1): mounting ext2 file system using the ext4 subsystem
[   13.409260] EXT4-fs (sda1): warning: mounting unchecked fs, running e2fsck is recommended
[   13.409578] EXT4-fs (sda1): mounted filesystem without journal. Opts: (null)
[   13.959526] EXT4-fs (dm-3): mounting ext3 file system using the ext4 subsystem
[   14.069274] EXT4-fs (dm-2): mounting ext3 file system using the ext4 subsystem
[   17.973458] EXT4-fs (dm-2): recovery complete
[   18.007520] EXT4-fs (dm-2): mounted filesystem with ordered data mode. Opts: acl
[   18.010413] EXT4-fs (dm-3): recovery complete
[   18.048757] EXT4-fs (dm-3): mounted filesystem with ordered data mode. Opts: (null)
[   18.682022] ip_tables: (C) 2000-2006 Netfilter Core Team
[   19.389339] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[   20.167640] audit: type=1305 audit(1456058080.656:2): audit_pid=431 old=0 auid=4294967295 ses=4294967295 subj=kernel res=1
[   20.381792] r8169 0000:01:00.0: firmware: direct-loading firmware rtl_nic/rtl8168e-3.fw
[   20.503667] r8169 0000:01:00.0 eth1: link down
[   20.503713] r8169 0000:01:00.0 eth1: link down
[   20.503752] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
[   20.519858] ip6_tables: (C) 2000-2006 Netfilter Core Team
[   22.848003] r8169 0000:01:00.0 eth1: link up
[   22.848021] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[   24.133881] FS-Cache: Loaded
[   24.167067] Key type dns_resolver registered
[   24.284694] FS-Cache: Netfs 'cifs' registered for caching
[   24.284767] Key type cifs.spnego registered
[   24.284788] Key type cifs.idmap registered
[   24.483942] RPC: Registered named UNIX socket transport module.
[   24.483950] RPC: Registered udp transport module.
[   24.483954] RPC: Registered tcp transport module.
[   24.483957] RPC: Registered tcp NFSv4.1 backchannel transport module.
[   24.582947] FS-Cache: Netfs 'nfs' registered for caching
[   24.699944] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[   25.313446] systemd-journald[209]: Received request to flush runtime journal from PID 1
[   28.900797] vboxdrv: Found 4 processor cores
[   28.918270] vboxdrv: TSC mode is Invariant, tentative frequency 2000000600 Hz
[   28.918278] vboxdrv: Successfully loaded version 5.0.14 (interface 0x00240000)
[   29.855623] VBoxNetFlt: Successfully started.
[   29.962826] VBoxNetAdp: Successfully started.
[   30.019869] VBoxPciLinuxInit
[   30.080336] vboxpci: IOMMU not found (not registered)
[   43.891422] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory
[   44.053589] NFSD: starting 90-second grace period (net ffffffff818ba180)
[   52.605461] aufs: module is from the staging directory, the quality is unknown, you have been warned.
[   52.607401] aufs 3.16-20140908
[  100.936610] Bridge firewalling registered
[  104.659712] IPv6: ADDRCONF(NETDEV_UP): docker0: link is not ready
[  111.359462] IPv6: ADDRCONF(NETDEV_UP): br-dcfd351d560c: link is not ready
[  112.129276] aufs au_opts_verify:1570:docker[1354]: dirperm1 breaks the protection by the permission bits on the lower branch
[  112.431178] aufs au_opts_verify:1570:docker[1354]: dirperm1 breaks the protection by the permission bits on the lower branch
[  113.704946] aufs au_opts_verify:1570:docker[1354]: dirperm1 breaks the protection by the permission bits on the lower branch
[  114.102639] aufs au_opts_verify:1570:docker[1286]: dirperm1 breaks the protection by the permission bits on the lower branch
[  114.575598] device vethe380391 entered promiscuous mode
[  114.576013] IPv6: ADDRCONF(NETDEV_UP): vethe380391: link is not ready
[  114.576026] br-dcfd351d560c: port 1(vethe380391) entered forwarding state
[  114.576045] br-dcfd351d560c: port 1(vethe380391) entered forwarding state
[  114.576824] br-dcfd351d560c: port 1(vethe380391) entered disabled state
[  116.153794] IPv6: ADDRCONF(NETDEV_CHANGE): vethe380391: link becomes ready
[  116.153848] br-dcfd351d560c: port 1(vethe380391) entered forwarding state
[  116.153865] br-dcfd351d560c: port 1(vethe380391) entered forwarding state
[  116.153901] IPv6: ADDRCONF(NETDEV_CHANGE): br-dcfd351d560c: link becomes ready
[  117.319130] aufs au_opts_verify:1570:docker[1354]: dirperm1 breaks the protection by the permission bits on the lower branch
[  118.572910] aufs au_opts_verify:1570:docker[1354]: dirperm1 breaks the protection by the permission bits on the lower branch
[  119.274230] aufs au_opts_verify:1570:docker[1317]: dirperm1 breaks the protection by the permission bits on the lower branch
[  119.639211] device veth7af9f14 entered promiscuous mode
[  119.639642] IPv6: ADDRCONF(NETDEV_UP): veth7af9f14: link is not ready
[  119.639654] br-dcfd351d560c: port 2(veth7af9f14) entered forwarding state
[  119.639668] br-dcfd351d560c: port 2(veth7af9f14) entered forwarding state
[  119.641796] br-dcfd351d560c: port 2(veth7af9f14) entered disabled state
[  121.892924] IPv6: ADDRCONF(NETDEV_CHANGE): veth7af9f14: link becomes ready
[  121.892987] br-dcfd351d560c: port 2(veth7af9f14) entered forwarding state
[  121.893000] br-dcfd351d560c: port 2(veth7af9f14) entered forwarding state
[  131.234572] br-dcfd351d560c: port 1(vethe380391) entered forwarding state
[  136.941702] br-dcfd351d560c: port 2(veth7af9f14) entered forwarding state

** Model information
sys_vendor: Gigabyte Technology Co., Ltd.
product_name: To be filled by O.E.M.
product_version: To be filled by O.E.M.
chassis_vendor: To Be Filled By O.E.M.
chassis_version: To Be Filled By O.E.M.
bios_vendor: American Megatrends Inc.
bios_version: F3
board_vendor: Gigabyte Technology Co., Ltd.
board_name: J1900N-D3V
board_version: x.x

** Loaded modules:
veth
bridge
stp
llc
aufs(C)
binfmt_misc
pci_stub
vboxpci(O)
vboxnetadp(O)
vboxnetflt(O)
vboxdrv(O)
nfsd
auth_rpcgss
arc4
oid_registry
nfs_acl
ecb
nfs
md4
lockd
hmac
sunrpc
nls_utf8
cifs
dns_resolver
fscache
ip6table_filter
ip6_tables
xt_nat
ipt_MASQUERADE
xt_addrtype
iptable_nat
nf_nat_ipv4
nf_nat
xt_tcpudp
nf_conntrack_ipv4
nf_defrag_ipv4
xt_conntrack
nf_conntrack
xt_iprange
xt_multiport
iptable_filter
ip_tables
x_tables
snd_soc_rt5640
iTCO_wdt
iTCO_vendor_support
ppdev
evdev
intel_powerclamp
snd_hda_codec_hdmi
snd_soc_rl6231
snd_hda_codec_realtek
snd_soc_core
snd_hda_codec_generic
intel_rapl
snd_compress
snd_hda_intel
snd_hda_controller
kvm_intel
snd_hda_codec
i915
kvm
snd_hwdep
snd_pcm
psmouse
crc32_pclmul
snd_timer
snd
video
drm_kms_helper
pcspkr
drm
serio_raw
cryptd
parport_pc
battery
soundcore
lpc_ich
regmap_i2c
parport
i2c_algo_bit
i2c_designware_platform
mfd_core
iosf_mbi
i2c_designware_core
shpchp
button
snd_soc_sst_acpi
i2c_i801
smsc47m192
coretemp
processor
loop
it87
hwmon_vid
fuse
autofs4
ext4
crc16
mbcache
jbd2
dm_mod
sg
sd_mod
crc_t10dif
crct10dif_generic
crct10dif_pclmul
crct10dif_common
crc32c_intel
ahci
libahci
xhci_hcd
r8169
libata
mii
usbcore
usb_common
scsi_mod
fan
thermal
thermal_sys
i2c_hid
hid
i2c_core
sdhci_acpi
sdhci
mmc_core

** Network interface configuration:

auto lo
iface lo inet loopback

auto eth1
iface eth1 inet static
	address 192.168.1.5
	netmask 255.255.255.0
	gateway 192.168.1.1

iface eth2 inet manual



** Network status:
*** IP interfaces and addresses:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether fc:aa:14:2d:df:7f brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.5/24 brd 192.168.1.255 scope global eth1
       valid_lft forever preferred_lft forever
    inet6 fe80::feaa:14ff:fe2d:df7f/64 scope link 
       valid_lft forever preferred_lft forever
3: eth2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether fc:aa:14:2d:df:93 brd ff:ff:ff:ff:ff:ff
4: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether 02:42:8a:7a:88:a2 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 scope global docker0
       valid_lft forever preferred_lft forever
5: br-dcfd351d560c: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 02:42:f4:d1:99:81 brd ff:ff:ff:ff:ff:ff
    inet 172.18.0.1/16 scope global br-dcfd351d560c
       valid_lft forever preferred_lft forever
    inet6 fe80::42:f4ff:fed1:9981/64 scope link 
       valid_lft forever preferred_lft forever
7: vethe380391: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-dcfd351d560c state UP group default 
    link/ether 52:c6:c6:a3:21:77 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::50c6:c6ff:fea3:2177/64 scope link 
       valid_lft forever preferred_lft forever
9: veth7af9f14: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-dcfd351d560c state UP group default 
    link/ether 0a:33:6c:51:4d:b2 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::833:6cff:fe51:4db2/64 scope link 
       valid_lft forever preferred_lft forever

*** Device statistics:
Inter-|   Receive                                                |  Transmit
 face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
br-dcfd351d560c:   83845     110    0    0    0     0          0         0    16834     109    0    0    0     0       0          0
vethe380391: 1732543     616    0    0    0     0          0         0   100173     750    0    0    0     0       0          0
docker0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
  eth1: 48491818  416817    0    1    0     0          0         0 1675771318 1248767    0    0    0     0       0          0
  eth2:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
veth7af9f14:  181198     813    0    0    0     0          0         0  1747803     713    0    0    0     0       0          0
    lo:  366419    4284    0    0    0     0          0         0   366419    4284    0    0    0     0       0          0

*** Protocol statistics:
Ip:
    415406 total packets received
    10 forwarded
    0 incoming packets discarded
    415385 incoming packets delivered
    1252719 requests sent out
    21 reassemblies required
    10 packets reassembled ok
Icmp:
    3904 ICMP messages received
    1782 input ICMP message failed.
    ICMP input histogram:
        destination unreachable: 3766
        timeout in transit: 17
        redirects: 52
        echo requests: 69
    499 ICMP messages sent
    0 ICMP messages failed
    ICMP output histogram:
        destination unreachable: 430
        echo replies: 69
IcmpMsg:
        InType3: 3766
        InType5: 52
        InType8: 69
        InType11: 17
        OutType0: 69
        OutType3: 430
Tcp:
    17834 active connections openings
    465 passive connection openings
    2517 failed connection attempts
    522 connection resets received
    32 connections established
    402826 segments received
    1184530 segments send out
    55818 segments retransmited
    111 bad segments received.
    5568 resets sent
Udp:
    8658 packets received
    19 packets to unknown port received.
    0 packet receive errors
    11864 packets sent
UdpLite:
TcpExt:
    9 invalid SYN cookies received
    2 resets received for embryonic SYN_RECV sockets
    930 TCP sockets finished time wait in fast timer
    11 packets rejects in established connections because of timestamp
    3342 delayed acks sent
    139 delayed acks further delayed because of locked socket
    Quick ack mode was activated 222 times
    20234 packets directly queued to recvmsg prequeue.
    6521 bytes directly in process context from backlog
    73040 bytes directly received in process context from prequeue
    17017 packet headers predicted
    83 packets header predicted and directly queued to user
    310412 acknowledgments not containing data payload received
    35170 predicted acknowledgments
    1844 times recovered from packet loss by selective acknowledgements
    Detected reordering 1 times using FACK
    4 congestion windows recovered without slow start by DSACK
    824 congestion windows recovered without slow start after partial ack
    TCPLostRetransmit: 404
    403 timeouts after SACK recovery
    298 timeouts in loss state
    10279 fast retransmits
    603 forward retransmits
    1749 retransmits in slow start
    9620 other TCP timeouts
    TCPLossProbes: 903
    TCPLossProbeRecovery: 261
    429 SACK retransmits failed
    301 DSACKs sent for old packets
    1 DSACKs sent for out of order packets
    394 DSACKs received
    11 DSACKs for out of order packets received
    159 connections reset due to unexpected data
    314 connections reset due to early user close
    74 connections aborted due to timeout
    TCPDSACKIgnoredNoUndo: 203
    TCPSpuriousRTOs: 371
    TCPSackShiftFallback: 56859
    TCPDeferAcceptDrop: 85
    TCPRcvCoalesce: 1214
    TCPOFOQueue: 860
    TCPOFOMerge: 1
    TCPChallengeACK: 132
    TCPSYNChallenge: 113
    TCPSpuriousRtxHostQueues: 182
    TCPAutoCorking: 33947
    TCPSynRetrans: 40488
    TCPOrigDataSent: 1131603
IpExt:
    InMcastPkts: 105
    OutMcastPkts: 194
    InBcastPkts: 100
    OutBcastPkts: 57
    InOctets: 42828118
    OutOctets: 1658627140
    InMcastOctets: 45674
    OutMcastOctets: 67956
    InBcastOctets: 15359
    OutBcastOctets: 8775
    InNoECTPkts: 420520
    InECT1Pkts: 1
    InECT0Pkts: 95
    InCEPkts: 79


** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation Atom Processor Z36xxx/Z37xxx Series SoC Transaction Register [8086:0f00] (rev 0e)
	Subsystem: Gigabyte Technology Co., Ltd Device [1458:d000]
	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
	Kernel driver in use: iosf_mbi_pci

00:02.0 VGA compatible controller [0300]: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display [8086:0f31] (rev 0e) (prog-if 00 [VGA controller])
	Subsystem: Gigabyte Technology Co., Ltd Device [1458:d000]
	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 11
	Region 0: Memory at d0000000 (32-bit, non-prefetchable) [size=4M]
	Region 2: Memory at c0000000 (32-bit, prefetchable) [size=256M]
	Region 4: I/O ports at f080 [size=8]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: <access denied>

00:13.0 SATA controller [0106]: Intel Corporation Device [8086:0f23] (rev 0e) (prog-if 01 [AHCI 1.0])
	Subsystem: Gigabyte Technology Co., Ltd Device [1458:b002]
	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 106
	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 d0816000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci

00:14.0 USB controller [0c03]: Intel Corporation Atom Processor Z36xxx/Z37xxx Series USB xHCI [8086:0f35] (rev 0e) (prog-if 30 [XHCI])
	Subsystem: Gigabyte Technology Co., Ltd Device [1458:5007]
	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 103
	Region 0: Memory at d0800000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd

00:1a.0 Encryption controller [1080]: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Trusted Execution Engine [8086:0f18] (rev 0e)
	Subsystem: Gigabyte Technology Co., Ltd Device [1458:1c3a]
	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 255
	Region 0: Memory at d0500000 (32-bit, non-prefetchable) [size=1M]
	Region 1: Memory at d0400000 (32-bit, non-prefetchable) [size=1M]
	Capabilities: <access denied>

00:1b.0 Audio device [0403]: Intel Corporation Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller [8086:0f04] (rev 0e)
	Subsystem: Gigabyte Technology Co., Ltd Device [1458:a002]
	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 107
	Region 0: Memory at d0810000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel

00:1c.0 PCI bridge [0604]: Intel Corporation Device [8086:0f48] (rev 0e) (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=00, secondary=01, subordinate=01, sec-latency=0
	I/O behind bridge: 0000e000-0000efff
	Memory behind bridge: d0700000-d07fffff
	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 Device [8086:0f4a] (rev 0e) (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=00, secondary=02, subordinate=02, sec-latency=0
	I/O behind bridge: 0000d000-0000dfff
	Memory behind bridge: d0600000-d06fffff
	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 Device [8086:0f4c] (rev 0e) (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=00, secondary=03, subordinate=04, sec-latency=0
	I/O behind bridge: 00002000-00002fff
	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 Device [8086:0f4e] (rev 0e) (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=00, secondary=05, subordinate=05, sec-latency=0
	I/O behind bridge: 00003000-00003fff
	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

00:1f.0 ISA bridge [0601]: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Power Control Unit [8086:0f1c] (rev 0e)
	Subsystem: Gigabyte Technology Co., Ltd Device [1458:5001]
	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.3 SMBus [0c05]: Intel Corporation Device [8086:0f12] (rev 0e)
	Subsystem: Gigabyte Technology Co., Ltd Device [1458:5001]
	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 B routed to IRQ 18
	Region 0: Memory at d0814000 (32-bit, non-prefetchable) [size=32]
	Region 4: I/O ports at f000 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: i801_smbus

01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06)
	Subsystem: Gigabyte Technology Co., Ltd Motherboard [1458:e000]
	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 104
	Region 0: I/O ports at e000 [size=256]
	Region 2: Memory at d0704000 (64-bit, non-prefetchable) [size=4K]
	Region 4: Memory at d0700000 (64-bit, prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: r8169

02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06)
	Subsystem: Gigabyte Technology Co., Ltd Motherboard [1458:e000]
	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 105
	Region 0: I/O ports at d000 [size=256]
	Region 2: Memory at d0604000 (64-bit, non-prefetchable) [size=4K]
	Region 4: Memory at d0600000 (64-bit, prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: r8169

03:00.0 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev 41) (prog-if 01 [Subtractive 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
	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>


** USB devices:
Bus 002 Device 002: ID 045b:0210 Hitachi, Ltd 
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0a89:0030  
Bus 001 Device 003: ID 0529:0620 Aladdin Knowledge Systems Token JC
Bus 001 Device 002: ID 045b:0209 Hitachi, Ltd 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


-- System Information:
Debian Release: 8.3
  APT prefers stable
  APT policy: (990, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)

Versions of packages linux-image-3.16.0-4-amd64 depends on:
ii  debconf [debconf-2.0]                   1.5.56
ii  initramfs-tools [linux-initramfs-tool]  0.120
ii  kmod                                    18-3
ii  linux-base                              3.5

Versions of packages linux-image-3.16.0-4-amd64 recommends:
ii  firmware-linux-free  3.3
ii  irqbalance           1.0.6-3

Versions of packages linux-image-3.16.0-4-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  grub-pc                 2.02~beta2-22+deb8u1
pn  linux-doc-3.16          <none>

Versions of packages linux-image-3.16.0-4-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>
pn  firmware-linux-nonfree  <none>
pn  firmware-myricom        <none>
pn  firmware-netxen         <none>
pn  firmware-qlogic         <none>
pn  firmware-ralink         <none>
ii  firmware-realtek        0.43
pn  xen-hypervisor          <none>

-- debconf information:
  linux-image-3.16.0-4-amd64/postinst/mips-initrd-3.16.0-4-amd64:
  linux-image-3.16.0-4-amd64/prerm/removing-running-kernel-3.16.0-4-amd64: true
  linux-image-3.16.0-4-amd64/postinst/depmod-error-initrd-3.16.0-4-amd64: false


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