Bug#884285: Backport fix from 4.14

[Hendrik SACHSE]

Please backport
https://github.com/torvalds/linux/commit/9d11b06638f6aa30d099090e6b8a540c558295ac#diff-d45f6c5dfa1088acc4fb00e7636dbba7
from 4.14 to 4.9, this bug makes my setup almost unusable with Debian Stretch

Regards
Hendrik Sachse


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Bug#884285: linux-image-4.9.0-4-rt-amd64: TP-link UE300 causes system hang

[hendrik . sachse]

Package: src:linux
Version: 4.9.65-3
Severity: normal

Dear Maintainer,

   * What led up to the situation?
usage of TP-link UE300 USB to ethernet adapter
   * What exactly did you do (or not do) that was effective (or
 ineffective)?
plug in UE300 into USB port
   * What was the outcome of this action?
kernel messages and eventual system freeze

Dec  8 18:49:43 LxTE04 kernel: [16790.642451] cdc_ether 1-1:2.0 eth0: 
kevent 11 may have been dropped
Dec  8 18:51:49 LxTE04 kernel: [16917.298453] cdc_ether 1-1:2.0 eth0: 
kevent 11 may have been dropped
Dec  8 18:53:55 LxTE04 kernel: [17043.314451] cdc_ether 1-1:2.0 eth0: 
kevent 11 may have been dropped
Dec  8 19:01:18 LxTE04 kernel: [17486.322451] cdc_ether 1-1:2.0 eth0: 
kevent 11 may have been dropped
Dec  8 19:03:24 LxTE04 kernel: [17612.274451] cdc_ether 1-1:2.0 eth0: 
kevent 11 may have been dropped
Dec  8 19:04:27 LxTE04 kernel: [17675.314452] cdc_ether 1-1:2.0 eth0: 
kevent 11 may have been dropped

   * What outcome did you expect instead?
normal operation

refer to https://patchwork.kernel.org/patch/10022309/


-- Package-specific info:
** Version:
Linux version 4.9.0-4-rt-amd64 (debian-ker...@lists.debian.org) (gcc 
version 6.3.0 20170516 (Debian 6.3.0-18) ) #1 SMP PREEMPT RT Debian 
4.9.65-3 (2017-12-03)

** Command line:
BOOT_IMAGE=/vmlinuz-4.9.0-4-rt-amd64 root=/dev/mapper/LxTE04-root ro quiet

** Not tainted

** Kernel log:
[78559.428637] usb 1-1: new high-speed USB device number 5 using xhci_hcd
[78559.569963] usb 1-1: New USB device found, idVendor=2357, 
idProduct=0601
[78559.569970] usb 1-1: New USB device strings: Mfr=1, Product=2, 
SerialNumber=6
[78559.569973] usb 1-1: Product: USB 10/100/1000 LAN
[78559.569976] usb 1-1: Manufacturer: TP-LINK
[78559.569979] usb 1-1: SerialNumber: 0100
[78559.582728] cdc_ether 1-1:2.0 eth0: register 'cdc_ether' at 
usb-:00:14.0-1, CDC Ethernet Device, 18:a6:f7:1d:4d:d3
[78559.582766] usbcore: registered new interface driver cdc_ether
[78559.596244] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[78559.596360] cdc_ether 1-1:2.0 eth0: kevent 12 may have been dropped
[78559.611081] cdc_ether 1-1:2.0 eth0: kevent 12 may have been dropped

** Model information
sys_vendor: Shuttle Inc.
product_name: DS67U
product_version: V1.0
chassis_vendor: Default string
chassis_version: Default string
bios_vendor: American Megatrends Inc.
bios_version: 1.01
board_vendor: Shuttle Inc.
board_name: FS67U
board_version: 1.0

** Loaded modules:
cdc_ether
usbnet
mii
snd_hda_codec_hdmi
snd_hda_codec_realtek
snd_hda_codec_generic
intel_rapl
intel_powerclamp
coretemp
kvm_intel
kvm
irqbypass
crct10dif_pclmul
crc32_pclmul
ghash_clmulni_intel
arc4
intel_cstate
intel_uncore
intel_rapl_perf
rtsx_usb_ms
serio_raw
pcspkr
evdev
memstick
snd_soc_skl
snd_soc_skl_ipc
snd_soc_sst_ipc
snd_soc_sst_dsp
snd_hda_ext_core
snd_soc_sst_match
snd_soc_core
snd_compress
iTCO_wdt
iTCO_vendor_support
rtl8821ae
btcoexist
rtl_pci
btusb
btrtl
rtlwifi
snd_hda_intel
sg
snd_hda_codec
mac80211
snd_hda_core
snd_hwdep
cfg80211
snd_pcm
i915
snd_timer
snd
mei_me
soundcore
drm_kms_helper
shpchp
mei
drm
hci_uart
btbcm
btqca
btintel
bluetooth
battery
rfkill
video
intel_lpss_acpi
intel_lpss
acpi_pad
acpi_als
kfifo_buf
button
industrialio
ip_tables
x_tables
autofs4
ext4
crc16
jbd2
crc32c_generic
fscrypto
ecb
mbcache
dm_mod
rtsx_usb_sdmmc
mmc_core
rtsx_usb
mfd_core
sd_mod
hid_generic
usbhid
crc32c_intel
aesni_intel
aes_x86_64
glue_helper
lrw
gf128mul
ablk_helper
cryptd
psmouse
ahci
libahci
igb
i2c_algo_bit
i2c_i801
e1000e
dca
i2c_smbus
ptp
libata
pps_core
scsi_mod
xhci_pci
xhci_hcd
usbcore
usb_common
fan
thermal
i2c_hid
hid

** Network interface configuration:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

** Network status:
*** IP interfaces and addresses:
1: lo:  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: AFDX1A:  mtu 1500 qdisc mq 
state DOWN group default qlen 1000
link/ether 80:ee:73:bd:b3:a2 brd ff:ff:ff:ff:ff:ff
inet 10.10.1.1/16 brd 10.10.255.255 scope global AFDX1A
   valid_lft forever preferred_lft forever
3: AFDX1B:  mtu 1500 qdisc 
pfifo_fast state UP group default qlen 1000
link/ether 80:ee:73:bd:b3:a3 brd ff:ff:ff:ff:ff:ff
inet 10.10.1.2/16 brd 10.10.255.255 scope global AFDX1B
   valid_lft forever preferred_lft forever
inet6 fe80::82ee:73ff:febd:b3a3/64 scope link 
   valid_lft forever preferred_lft forever
4: wlp1s0:  mtu 1500 qdisc mq state DOWN group 
default