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Bug#829457: linux-image-4.6.0-1-amd64: OOPS issued when connecting to a wireless network; connection succeeds



Package: src:linux
Version: 4.6.2-2
Severity: normal

When connecting to a wireless network the oops below is issued. The connection succeeds, though from time to time I need to "restore" the connection by removing and reinserting the iwlwifi kernel module.

I don't know for sure when the issue appeared for the first time (what kernel version).

There is also a submission on the Linux Kernel Oops site, similar to this one: http://oops.kernel.org/oops/warning-at-net-mac80211-driver-ops-c39-ieee80211_do_stop0x4b7-0x7c0-mac80211/

Razvan

-- Package-specific info:
** Version:
Linux version 4.6.0-1-amd64 (debian-kernel@lists.debian.org) (gcc version 5.4.0 20160609 (Debian 5.4.0-4) ) #1 SMP Debian 4.6.2-2 (2016-06-25)

** Command line:
BOOT_IMAGE=/vmlinuz-4.6.0-1-amd64 root=UUID=a5adfd45-b103-4a5e-ac6c-7dc0c732f62b ro quiet

** Tainted: PWOE (12801)
 * Proprietary module has been loaded.
 * Taint on warning.
 * Out-of-tree module has been loaded.
 * Unsigned module has been loaded (currently expected).

** Kernel log:
[  442.273491]  0000000000000000 ffff880231848e78 ffff880231848e90 ffff8800b0d4f3a0
[  442.273495] Call Trace:
[  442.273502]  [<ffffffff81311485>] ? dump_stack+0x5c/0x77
[  442.273508]  [<ffffffff8107a50e>] ? __warn+0xbe/0xe0
[  442.273512]  [<ffffffff8107a58f>] ? warn_slowpath_fmt+0x5f/0x80
[  442.273533]  [<ffffffffc112564a>] ? ieee80211_do_stop+0x50a/0x7c0 [mac80211]
[  442.273538]  [<ffffffff814efecd>] ? dev_deactivate_many+0x1fd/0x230
[  442.273557]  [<ffffffffc1125916>] ? ieee80211_stop+0x16/0x20 [mac80211]
[  442.273562]  [<ffffffff814c1414>] ? __dev_close_many+0x94/0x100
[  442.273565]  [<ffffffff814c1504>] ? dev_close_many+0x84/0x120
[  442.273570]  [<ffffffff814c35fe>] ? dev_close.part.83+0x3e/0x60
[  442.273574]  [<ffffffff814c3633>] ? dev_close+0x13/0x20
[  442.273598]  [<ffffffffc1082bed>] ? cfg80211_shutdown_all_interfaces+0x3d/0xa0 [cfg80211]
[  442.273623]  [<ffffffffc11409e0>] ? ieee80211_reconfig+0x90/0xf80 [mac80211]
[  442.273627]  [<ffffffff810e1629>] ? try_to_del_timer_sync+0x59/0x80
[  442.273644]  [<ffffffffc110e1fd>] ? ieee80211_restart_work+0x8d/0xc0 [mac80211]
[  442.273648]  [<ffffffff81092dcd>] ? process_one_work+0x15d/0x410
[  442.273652]  [<ffffffff810930cd>] ? worker_thread+0x4d/0x480
[  442.273656]  [<ffffffff81093080>] ? process_one_work+0x410/0x410
[  442.273660]  [<ffffffff81098f1d>] ? kthread+0xcd/0xf0
[  442.273665]  [<ffffffff815c6872>] ? ret_from_fork+0x22/0x40
[  442.273668]  [<ffffffff81098e50>] ? kthread_create_on_node+0x190/0x190
[  442.273671] ---[ end trace f122df73ab546004 ]---
[  442.273677] ------------[ cut here ]------------
[  442.273697] WARNING: CPU: 0 PID: 648 at /build/linux-FzSZXp/linux-4.6.2/net/mac80211/driver-ops.c:39 ieee80211_do_stop+0x4b7/0x7c0 [mac80211]
[  442.273698] Modules linked in: xt_TCPMSS(E) xt_tcpmss(E) ppp_deflate(E) bsd_comp(E) ppp_async(E) crc_ccitt(E) huawei_cdc_ncm(E) option(E) cdc_wdm(E) cdc_ncm(E) usbnet(E) mii(E) usb_wwan(E) usbserial(E) uas(E) usb_storage(E) hmac(E) drbg(E) ansi_cprng(E) ctr(E) ccm(E) bnep(E) pci_stub(E) vboxpci(OE) vboxnetadp(OE) fuse(E) vmw_vsock_vmci_transport(E) vsock(E) vboxnetflt(OE) vmw_vmci(E) vboxdrv(OE) xt_CHECKSUM(E) iptable_mangle(E) ipt_MASQUERADE(E) nf_nat_masquerade_ipv4(E) iptable_nat(E) nf_nat_ipv4(E) nf_nat(E) nf_conntrack_ipv4(E) nf_defrag_ipv4(E) xt_conntrack(E) nf_conntrack(E) ipt_REJECT(E) nf_reject_ipv4(E) xt_tcpudp(E) tun(E) bridge(E) stp(E) llc(E) ebtable_filter(E) ebtables(E) ip6table_filter(E) ip6_tables(E) iptable_filter(E) ip_tables(E) x_tables(E) snd_hrtimer(E) snd_seq_midi(E) snd_seq_midi_event(E)
[  442.273739]  snd_rawmidi(E) snd_seq(E) snd_seq_device(E) pppoe(E) pppox(E) ppp_generic(E) slhc(E) cpufreq_conservative(E) cpufreq_userspace(E) cpufreq_stats(E) cpufreq_powersave(E) nfsd(E) auth_rpcgss(E) nfs_acl(E) nfs(E) lockd(E) grace(E) fscache(E) sunrpc(E) binfmt_misc(E) uvcvideo(E) btusb(E) btrtl(E) videobuf2_vmalloc(E) videobuf2_memops(E) btbcm(E) btintel(E) bluetooth(E) videobuf2_v4l2(E) videobuf2_core(E) videodev(E) media(E) arc4(E) iwldvm(E) mac80211(E) iwlwifi(E) snd_hda_codec_conexant(E) cfg80211(E) snd_hda_codec_generic(E) intel_rapl(E) i915(E) iTCO_wdt(E) iTCO_vendor_support(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) coretemp(E) kvm_intel(E) kvm(E) irqbypass(E) joydev(E) evdev(E) snd_hda_intel(E) crct10dif_pclmul(E) crc32_pclmul(E) ghash_clmulni_intel(E) snd_hda_codec(E) serio_raw(E)
[  442.273770]  thinkpad_acpi(E) sg(E) pcspkr(E) snd_hda_core(E) i2c_i801(E) nvram(E) mei_me(E) rfkill(E) lpc_ich(E) wmi(E) ac(E) snd_hwdep(E) mei(E) snd_pcm_oss(E) snd_mixer_oss(E) snd_pcm(E) snd_timer(E) snd(E) battery(E) shpchp(E) video(E) mfd_core(E) tpm_tis(E) button(E) drm_kms_helper(E) i2c_algo_bit(E) soundcore(E) tpm(E) processor(E) nvidia(POE) drm(E) loop(E) firewire_sbp2(E) parport_pc(E) ppdev(E) lp(E) parport(E) autofs4(E) ext4(E) ecb(E) crc16(E) jbd2(E) crc32c_generic(E) mbcache(E) sr_mod(E) cdrom(E) sd_mod(E) crc32c_intel(E) aesni_intel(E) aes_x86_64(E) glue_helper(E) lrw(E) gf128mul(E) firewire_ohci(E) ablk_helper(E) cryptd(E) ahci(E) libahci(E) psmouse(E) libata(E) scsi_mod(E) sdhci_pci(E) ehci_pci(E) sdhci(E) ehci_hcd(E) firewire_core(E) mmc_core(E) crc_itu_t(E) e1000e(E) usbcore(E)
[  442.273808]  ptp(E) usb_common(E) pps_core(E) thermal(E) fjes(E)
[  442.273814] CPU: 0 PID: 648 Comm: kworker/0:4 Tainted: P        W  OE   4.6.0-1-amd64 #1 Debian 4.6.2-2
[  442.273816] Hardware name: LENOVO 4178A3G/4178A3G, BIOS 83ET53WW (1.23 ) 03/31/2011
[  442.273833] Workqueue: events_freezable ieee80211_restart_work [mac80211]
[  442.273835]  0000000000200286 000000004d0029a6 ffffffff81311485 0000000000000000
[  442.273838]  0000000000000000 ffffffff8107a50e ffff8800b0d4e840 ffff880231848700
[  442.273841]  0000000000000000 ffff880231848e78 ffff880231848e90 ffff8800b0d4f3a0
[  442.273845] Call Trace:
[  442.273849]  [<ffffffff81311485>] ? dump_stack+0x5c/0x77
[  442.273852]  [<ffffffff8107a50e>] ? __warn+0xbe/0xe0
[  442.273870]  [<ffffffffc11255f7>] ? ieee80211_do_stop+0x4b7/0x7c0 [mac80211]
[  442.273874]  [<ffffffff814efecd>] ? dev_deactivate_many+0x1fd/0x230
[  442.273892]  [<ffffffffc1125916>] ? ieee80211_stop+0x16/0x20 [mac80211]
[  442.273896]  [<ffffffff814c1414>] ? __dev_close_many+0x94/0x100
[  442.273899]  [<ffffffff814c1504>] ? dev_close_many+0x84/0x120
[  442.273904]  [<ffffffff814c35fe>] ? dev_close.part.83+0x3e/0x60
[  442.273908]  [<ffffffff814c3633>] ? dev_close+0x13/0x20
[  442.273926]  [<ffffffffc1082bed>] ? cfg80211_shutdown_all_interfaces+0x3d/0xa0 [cfg80211]
[  442.273949]  [<ffffffffc11409e0>] ? ieee80211_reconfig+0x90/0xf80 [mac80211]
[  442.273952]  [<ffffffff810e1629>] ? try_to_del_timer_sync+0x59/0x80
[  442.273969]  [<ffffffffc110e1fd>] ? ieee80211_restart_work+0x8d/0xc0 [mac80211]
[  442.273973]  [<ffffffff81092dcd>] ? process_one_work+0x15d/0x410
[  442.273977]  [<ffffffff810930cd>] ? worker_thread+0x4d/0x480
[  442.273981]  [<ffffffff81093080>] ? process_one_work+0x410/0x410
[  442.273984]  [<ffffffff81098f1d>] ? kthread+0xcd/0xf0
[  442.273988]  [<ffffffff815c6872>] ? ret_from_fork+0x22/0x40
[  442.273991]  [<ffffffff81098e50>] ? kthread_create_on_node+0x190/0x190
[  442.273993] ---[ end trace f122df73ab546005 ]---
[  455.591193] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[  455.595380] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[  455.595630] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[  455.595729] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
[  455.875427] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[  455.875669] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[  455.875767] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
[  455.955349] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[  458.912256] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[  458.971266] wlan0: authenticate with 84:b2:61:56:8a:0f
[  458.973138] wlan0: send auth to 84:b2:61:56:8a:0f (try 1/3)
[  458.973845] wlan0: authenticated
[  458.977276] wlan0: associate with 84:b2:61:56:8a:0f (try 1/3)
[  458.979194] wlan0: RX AssocResp from 84:b2:61:56:8a:0f (capab=0x11 status=0 aid=1)
[  458.998155] wlan0: associated
[  458.998201] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[  459.043989] wlan0: Limiting TX power to 18 dBm as advertised by 84:b2:61:56:8a:0f
[  985.034384] ACPI Warning: \_SB.PCI0.PEG.VID._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95)
[  985.034498] ACPI Warning: \_SB.PCI0.PEG.VID._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95)
[  985.034570] ACPI Warning: \_SB.PCI0.PEG.VID._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95)
[  985.034622] ACPI Warning: \_SB.PCI0.PEG.VID._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95)
[  985.034662] ACPI Warning: \_SB.PCI0.PEG.VID._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95)
[  985.034701] ACPI Warning: \_SB.PCI0.PEG.VID._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95)
[  985.035037] ACPI Warning: \_SB.PCI0.PEG.VID._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95)
[  985.035077] ACPI Warning: \_SB.PCI0.PEG.VID._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95)
[  985.088469] ACPI Warning: \_SB.PCI0.PEG.VID._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95)
[  985.600343] nvidia_uvm: Loaded the UVM driver, major device number 244
[ 2291.905786] wlan0: deauthenticated from 84:b2:61:56:8a:0f (Reason: 23=IEEE8021X_FAILED)
[ 2307.052404] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 2308.549256] wlan0: authenticate with 84:b2:61:56:8a:0f
[ 2308.552743] wlan0: send auth to 84:b2:61:56:8a:0f (try 1/3)
[ 2308.553456] wlan0: authenticated
[ 2308.557676] wlan0: associate with 84:b2:61:56:8a:0f (try 1/3)
[ 2308.559602] wlan0: RX AssocResp from 84:b2:61:56:8a:0f (capab=0x11 status=0 aid=1)
[ 2308.578402] wlan0: associated
[ 2308.578494] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 2308.622324] wlan0: Limiting TX power to 18 dBm as advertised by 84:b2:61:56:8a:0f
[ 2444.581637] wlan0: authenticate with 84:b2:61:5e:44:2f
[ 2444.584458] wlan0: send auth to 84:b2:61:5e:44:2f (try 1/3)
[ 2444.628728] wlan0: authenticated
[ 2444.629504] wlan0: associate with 84:b2:61:5e:44:2f (try 1/3)
[ 2444.631709] wlan0: RX AssocResp from 84:b2:61:5e:44:2f (capab=0x11 status=0 aid=1)
[ 2444.650838] wlan0: associated
[ 2444.732663] wlan0: Limiting TX power to 18 dBm as advertised by 84:b2:61:5e:44:2f

** Model information
sys_vendor: LENOVO
product_name: 4178A3G
product_version: ThinkPad T420
chassis_vendor: LENOVO
chassis_version: Not Available
bios_vendor: LENOVO
bios_version: 83ET53WW (1.23 )
board_vendor: LENOVO
board_name: 4178A3G
board_version: Not Available

** Loaded modules:
nvidia_uvm(POE)
xt_TCPMSS(E)
xt_tcpmss(E)
ppp_deflate(E)
bsd_comp(E)
ppp_async(E)
crc_ccitt(E)
huawei_cdc_ncm(E)
option(E)
cdc_wdm(E)
cdc_ncm(E)
usbnet(E)
mii(E)
usb_wwan(E)
usbserial(E)
uas(E)
usb_storage(E)
hmac(E)
drbg(E)
ansi_cprng(E)
ctr(E)
ccm(E)
bnep(E)
pci_stub(E)
vboxpci(OE)
vboxnetadp(OE)
fuse(E)
vmw_vsock_vmci_transport(E)
vsock(E)
vboxnetflt(OE)
vmw_vmci(E)
vboxdrv(OE)
xt_CHECKSUM(E)
iptable_mangle(E)
ipt_MASQUERADE(E)
nf_nat_masquerade_ipv4(E)
iptable_nat(E)
nf_nat_ipv4(E)
nf_nat(E)
nf_conntrack_ipv4(E)
nf_defrag_ipv4(E)
xt_conntrack(E)
nf_conntrack(E)
ipt_REJECT(E)
nf_reject_ipv4(E)
xt_tcpudp(E)
tun(E)
bridge(E)
stp(E)
llc(E)
ebtable_filter(E)
ebtables(E)
ip6table_filter(E)
ip6_tables(E)
iptable_filter(E)
ip_tables(E)
x_tables(E)
snd_hrtimer(E)
snd_seq_midi(E)
snd_seq_midi_event(E)
snd_rawmidi(E)
snd_seq(E)
snd_seq_device(E)
pppoe(E)
pppox(E)
ppp_generic(E)
slhc(E)
cpufreq_conservative(E)
cpufreq_userspace(E)
cpufreq_stats(E)
cpufreq_powersave(E)
nfsd(E)
auth_rpcgss(E)
nfs_acl(E)
nfs(E)
lockd(E)
grace(E)
fscache(E)
sunrpc(E)
binfmt_misc(E)
uvcvideo(E)
btusb(E)
btrtl(E)
videobuf2_vmalloc(E)
videobuf2_memops(E)
btbcm(E)
btintel(E)
bluetooth(E)
videobuf2_v4l2(E)
videobuf2_core(E)
videodev(E)
media(E)
arc4(E)
iwldvm(E)
mac80211(E)
iwlwifi(E)
snd_hda_codec_conexant(E)
cfg80211(E)
snd_hda_codec_generic(E)
intel_rapl(E)
i915(E)
iTCO_wdt(E)
iTCO_vendor_support(E)
x86_pkg_temp_thermal(E)
intel_powerclamp(E)
coretemp(E)
kvm_intel(E)
kvm(E)
irqbypass(E)
joydev(E)
evdev(E)
snd_hda_intel(E)
crct10dif_pclmul(E)
crc32_pclmul(E)
ghash_clmulni_intel(E)
snd_hda_codec(E)
serio_raw(E)
thinkpad_acpi(E)
sg(E)
pcspkr(E)
snd_hda_core(E)
i2c_i801(E)
nvram(E)
mei_me(E)
rfkill(E)
lpc_ich(E)
wmi(E)
ac(E)
snd_hwdep(E)
mei(E)
snd_pcm_oss(E)
snd_mixer_oss(E)
snd_pcm(E)
snd_timer(E)
snd(E)
battery(E)
shpchp(E)
video(E)
mfd_core(E)
tpm_tis(E)
button(E)
drm_kms_helper(E)
i2c_algo_bit(E)
soundcore(E)
tpm(E)
processor(E)
nvidia(POE)
drm(E)
loop(E)
firewire_sbp2(E)
parport_pc(E)
ppdev(E)
lp(E)
parport(E)
autofs4(E)
ext4(E)
ecb(E)
crc16(E)
jbd2(E)
crc32c_generic(E)
mbcache(E)
sr_mod(E)
cdrom(E)
sd_mod(E)
crc32c_intel(E)
aesni_intel(E)
aes_x86_64(E)
glue_helper(E)
lrw(E)
gf128mul(E)
firewire_ohci(E)
ablk_helper(E)
cryptd(E)
ahci(E)
libahci(E)
psmouse(E)
libata(E)
scsi_mod(E)
sdhci_pci(E)
ehci_pci(E)
sdhci(E)
ehci_hcd(E)
firewire_core(E)
mmc_core(E)
crc_itu_t(E)
e1000e(E)
usbcore(E)
ptp(E)
usb_common(E)
pps_core(E)
thermal(E)
fjes(E)

** Network interface configuration:

auto lo
iface lo inet loopback


auto dsl-provider
iface dsl-provider inet ppp
pre-up /bin/ip link set eth0 up # line maintained by pppoeconf
provider dsl-provider


auto wlan0
iface wlan0 inet static
    address 192.168.1.1
    netmask 255.255.255.0
    wireless-channel 1
    wireless-essid PRECIS
    wireless-mode ad-hoc

** Network status:
*** IP interfaces and addresses:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    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: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
    link/ether 00:21:cc:5d:c3:b7 brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether a0:88:b4:42:c5:b0 brd ff:ff:ff:ff:ff:ff
    inet 172.19.7.69/24 brd 172.19.7.255 scope global dynamic wlan0
       valid_lft 6949sec preferred_lft 6949sec
    inet6 fe80::a288:b4ff:fe42:c5b0/64 scope link 
       valid_lft forever preferred_lft forever
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 scope global virbr0
       valid_lft forever preferred_lft forever
5: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
    link/ether 52:54:00:c4:b5:e1 brd ff:ff:ff:ff:ff:ff

*** Device statistics:
Inter-|   Receive                                                |  Transmit
 face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
    lo: 1216152    3323    0    0    0     0          0         0  1216152    3323    0    0    0     0       0          0
 wlan0: 155660504  126237    0    0    0     0          0         0 10785911   76912    0    0    0     0       0          0
virbr0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
virbr0-nic:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
  eth0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0

*** Protocol statistics:
Ip:
    Forwarding: 1
    129645 total packets received
    0 forwarded
    0 incoming packets discarded
    129639 incoming packets delivered
    78533 requests sent out
    108 outgoing packets dropped
    292 dropped because of missing route
Icmp:
    314 ICMP messages received
    0 input ICMP message failed.
    ICMP input histogram:
        destination unreachable: 314
    294 ICMP messages sent
    0 ICMP messages failed
    ICMP output histogram:
        destination unreachable: 294
IcmpMsg:
        InType3: 314
        OutType3: 294
Tcp:
    966 active connections openings
    6 passive connection openings
    16 failed connection attempts
    22 connection resets received
    13 connections established
    120990 segments received
    70294 segments send out
    138 segments retransmited
    31 bad segments received.
    353 resets sent
Udp:
    8185 packets received
    294 packets to unknown port received.
    0 packet receive errors
    8516 packets sent
    0 receive buffer errors
    0 send buffer errors
    IgnoredMulti: 16
UdpLite:
TcpExt:
    312 packets pruned from receive queue because of socket buffer overrun
    319 TCP sockets finished time wait in fast timer
    1117 delayed acks sent
    1 delayed acks further delayed because of locked socket
    Quick ack mode was activated 182 times
    523 packets directly queued to recvmsg prequeue.
    333966 bytes directly in process context from backlog
    TCPDirectCopyFromPrequeue: 624811
    90309 packet headers predicted
    718 packets header predicted and directly queued to user
    4369 acknowledgments not containing data payload received
    4927 predicted acknowledgments
    TCPSackRecovery: 3
    3 fast retransmits
    TCPTimeouts: 16
    TCPLossProbes: 21
    TCPLossProbeRecovery: 1
    31059 packets collapsed in receive queue due to low socket buffer
    TCPDSACKOldSent: 182
    TCPDSACKRecv: 11
    94 connections reset due to unexpected data
    4 connections reset due to early user close
    20 connections aborted due to timeout
    6 times unable to send RST due to no memory
    TCPDSACKIgnoredNoUndo: 1
    TCPSackShifted: 2
    TCPSackMerged: 2
    TCPSackShiftFallback: 5
    TCPRetransFail: 4
    TCPRcvCoalesce: 70257
    TCPOFOQueue: 5009
    TCPChallengeACK: 32
    TCPSYNChallenge: 31
    TCPSpuriousRtxHostQueues: 1
    TCPAutoCorking: 1023
    TCPFromZeroWindowAdv: 7
    TCPToZeroWindowAdv: 7
    TCPWantZeroWindowAdv: 602
    TCPOrigDataSent: 10283
    TCPHystartTrainDetect: 1
    TCPHystartTrainCwnd: 17
    TCPKeepAlive: 1685
IpExt:
    InNoRoutes: 6
    InMcastPkts: 127
    OutMcastPkts: 161
    InBcastPkts: 207
    OutBcastPkts: 207
    InOctets: 155128468
    OutOctets: 8739141
    InMcastOctets: 18669
    OutMcastOctets: 22198
    InBcastOctets: 28784
    OutBcastOctets: 28784
    InNoECTPkts: 129645


** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 2nd Generation Core Processor Family DRAM Controller [8086:0104] (rev 09)
	Subsystem: Lenovo 2nd Generation Core Processor Family DRAM Controller [17aa:21ce]
	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 E3-1200/2nd Generation Core Processor Family PCI Express Root Port [8086:0101] (rev 09) (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: 00005000-00005fff
	Memory behind bridge: f0000000-f10fffff
	Prefetchable memory behind bridge: 00000000c0000000-00000000d1ffffff
	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
	Kernel modules: shpchp

00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
	Subsystem: Lenovo 2nd Generation Core Processor Family Integrated Graphics Controller [17aa:21d0]
	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 31
	Region 0: Memory at f1400000 (64-bit, non-prefetchable) [size=4M]
	Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
	Region 4: I/O ports at 6000 [size=64]
	[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: i915
	Kernel modules: i915

00:16.0 Communication controller [0780]: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 [8086:1c3a] (rev 04)
	Subsystem: Lenovo 6 Series/C200 Series Chipset Family MEI Controller [17aa:21ce]
	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 27
	Region 0: Memory at f3a25000 (64-bit, non-prefetchable) [size=16]
	Capabilities: <access denied>
	Kernel driver in use: mei_me
	Kernel modules: mei_me

00:16.3 Serial controller [0700]: Intel Corporation 6 Series/C200 Series Chipset Family KT Controller [8086:1c3d] (rev 04) (prog-if 02 [16550])
	Subsystem: Lenovo 6 Series/C200 Series Chipset Family KT Controller [17aa:21ce]
	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 B routed to IRQ 19
	Region 0: I/O ports at 60b0 [size=8]
	Region 1: Memory at f3a2c000 (32-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: serial

00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit Network Connection [8086:1502] (rev 04)
	Subsystem: Lenovo 82579LM Gigabit Network Connection [17aa:21ce]
	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 30
	Region 0: Memory at f3a00000 (32-bit, non-prefetchable) [size=128K]
	Region 1: Memory at f3a2b000 (32-bit, non-prefetchable) [size=4K]
	Region 2: I/O ports at 6080 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: e1000e
	Kernel modules: e1000e

00:1a.0 USB controller [0c03]: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 [8086:1c2d] (rev 04) (prog-if 20 [EHCI])
	Subsystem: Lenovo 6 Series/C200 Series Chipset Family USB Enhanced Host Controller [17aa:21ce]
	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 f3a2a000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci
	Kernel modules: ehci_pci

00:1b.0 Audio device [0403]: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller [8086:1c20] (rev 04)
	Subsystem: Lenovo 6 Series/C200 Series Chipset Family High Definition Audio Controller [17aa:21ce]
	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: Memory at f3a20000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

00:1c.0 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 [8086:1c10] (rev b4) (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-
	Interrupt: pin A routed to IRQ 16
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	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
	Kernel modules: shpchp

00:1c.1 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 [8086:1c12] (rev b4) (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=03, sec-latency=0
	Memory behind bridge: f3900000-f39fffff
	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
	Kernel modules: shpchp

00:1c.3 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 [8086:1c16] (rev b4) (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=05, subordinate=0c, sec-latency=0
	I/O behind bridge: 00004000-00004fff
	Memory behind bridge: f3100000-f38fffff
	Prefetchable memory behind bridge: 00000000f1800000-00000000f1ffffff
	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
	Kernel modules: shpchp

00:1c.4 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 [8086:1c18] (rev b4) (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=0d, subordinate=0d, sec-latency=0
	I/O behind bridge: 00003000-00003fff
	Memory behind bridge: f2800000-f30fffff
	Prefetchable memory behind bridge: 00000000f2000000-00000000f27fffff
	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
	Kernel modules: shpchp

00:1d.0 USB controller [0c03]: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 [8086:1c26] (rev 04) (prog-if 20 [EHCI])
	Subsystem: Lenovo 6 Series/C200 Series Chipset Family USB Enhanced Host Controller [17aa:21ce]
	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 f3a29000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci
	Kernel modules: ehci_pci

00:1f.0 ISA bridge [0601]: Intel Corporation QM67 Express Chipset Family LPC Controller [8086:1c4f] (rev 04)
	Subsystem: Lenovo QM67 Express Chipset Family LPC Controller [17aa:21ce]
	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
	Kernel modules: lpc_ich

00:1f.2 SATA controller [0106]: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller [8086:1c03] (rev 04) (prog-if 01 [AHCI 1.0])
	Subsystem: Lenovo 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller [17aa:21ce]
	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 28
	Region 0: I/O ports at 60a8 [size=8]
	Region 1: I/O ports at 60bc [size=4]
	Region 2: I/O ports at 60a0 [size=8]
	Region 3: I/O ports at 60b8 [size=4]
	Region 4: I/O ports at 6060 [size=32]
	Region 5: Memory at f3a28000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci
	Kernel modules: ahci

00:1f.3 SMBus [0c05]: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller [8086:1c22] (rev 04)
	Subsystem: Lenovo 6 Series/C200 Series Chipset Family SMBus Controller [17aa:21ce]
	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 f3a24000 (64-bit, non-prefetchable) [size=256]
	Region 4: I/O ports at efa0 [size=32]
	Kernel driver in use: i801_smbus
	Kernel modules: i2c_i801

01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF119M [Quadro NVS 4200M] [10de:1057] (rev a1) (prog-if 00 [VGA controller])
	Subsystem: Lenovo GF119M [Quadro NVS 4200M] [17aa:21d0]
	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 33
	Region 0: Memory at f0000000 (32-bit, non-prefetchable) [size=16M]
	Region 1: Memory at c0000000 (64-bit, prefetchable) [size=256M]
	Region 3: Memory at d0000000 (64-bit, prefetchable) [size=32M]
	Region 5: I/O ports at 5000 [size=128]
	[virtual] Expansion ROM at f1000000 [disabled] [size=512K]
	Capabilities: <access denied>
	Kernel driver in use: nvidia
	Kernel modules: nvidia

03:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6205 [Taylor Peak] [8086:0085] (rev 34)
	Subsystem: Intel Corporation Centrino Advanced-N 6205 AGN [8086:1311]
	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 32
	Region 0: Memory at f3900000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi

0d:00.0 System peripheral [0880]: Ricoh Co Ltd MMC/SD Host Controller [1180:e822] (rev 08) (prog-if 01)
	Subsystem: Lenovo MMC/SD Host Controller [17aa:2133]
	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 f2801000 (32-bit, non-prefetchable) [size=256]
	Capabilities: <access denied>
	Kernel driver in use: sdhci-pci
	Kernel modules: sdhci_pci

0d:00.3 FireWire (IEEE 1394) [0c00]: Ricoh Co Ltd R5C832 PCIe IEEE 1394 Controller [1180:e832] (rev 04) (prog-if 10 [OHCI])
	Subsystem: Lenovo R5C832 PCIe IEEE 1394 Controller [17aa:21ce]
	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
	Region 0: Memory at f2800000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: firewire_ohci
	Kernel modules: firewire_ohci


** USB devices:
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 04f2:b221 Chicony Electronics Co., Ltd integrated camera
Bus 001 Device 003: ID 147e:2016 Upek Biometric Touchchip/Touchstrip Fingerprint Sensor
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.6.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages linux-image-4.6.0-1-amd64 depends on:
ii  initramfs-tools [linux-initramfs-tool]  0.125
ii  kmod                                    22-1.1
ii  linux-base                              4.3

Versions of packages linux-image-4.6.0-1-amd64 recommends:
ii  firmware-linux-free  3.4
ii  irqbalance           1.1.0-2

Versions of packages linux-image-4.6.0-1-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  extlinux                3:6.03+dfsg-14
ii  grub-pc                 2.02~beta2-36
pn  linux-doc-4.6           <none>

Versions of packages linux-image-4.6.0-1-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          20160110-1
pn  firmware-libertas         <none>
pn  firmware-linux-nonfree    <none>
pn  firmware-misc-nonfree     <none>
pn  firmware-myricom          <none>
pn  firmware-netxen           <none>
pn  firmware-qlogic           <none>
pn  firmware-realtek          <none>
pn  firmware-samsung          <none>
pn  firmware-siano            <none>
pn  firmware-ti-connectivity  <none>
pn  xen-hypervisor            <none>

-- no debconf information


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