rtl8188eu
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20 hours ago •
lwfinger
lwfinger
System freeze in hotspot mode with Qualcoom Atheros QCA9377
Hi, I'm using the rtl8188eu driver as the provider of the EMB-4500 motherboard changed recently the wifi chipset. I have no problem when using the driver except in one case where the whole system freezes.
The only information I have on serial port is:
mmc0: Timeout waiting for hardware interrupt. INFO: rcu_preempt_state detected stall on CPU 0 (t=6000 jiffies)
and I can do nothing else than restarting the motherboard.
I'm using the 3.0.35 kernel and have no other choice than using it.
The problem occurs when connecting with a Qualcoom Atheros QCA9377 Wireless Network Adapter. I've tried with other computers (with intel chipset) or with phone and I have no problem.
If you have any info of how to fix this issue or need more log I would be happy to provide it.
The missing interrupt is strange because the USB sussystem handles all interripts.
What wifi chip was used before they went to the 8188eu?
Which branch of this repo are you using? Have any of the configuration variables been changed?
What kernel is being used on the box having the QCA9377. It seems likely that it is using some option that was not present in 3.0.35. Of course, the 8188eu should return an error, not freeze.
Please provide any information being written to the dmesg log. If needed, would it be possible for you to capture the over-the-air packets from the exchange between the QCA9377 and the RTL8188EU?
The wifi chip used before was a RTL8188CTV with rtl8192cu driver. And now it's a RTL8188ETV.
I'm using master branch of the repo, I can try with another one if you think it will fix the problem. Not sure of which configuration variables you are talking about. We use same config file for hostpad.
#####` hostapd configuration file ##############################################
interface=wlan0
ssid=XXXXXXX
wpa_passphrase=XXXXXXX
ignore_broadcast_ssid=1
#wep_default_key=0
#wep_key0=XXXXXXX
#wep_key1="XXXXXXX"
#wep_key2=XXXXXXX
#wep_key3="XXXXXXX"
wpa=2
wpa_key_mgmt=WPA-PSK
wpa_pairwise=CCMP
wpa_group_rekey=3600
##### default configuration #######################################
driver=rtl871xdrv
ctrl_interface=/var/run/hostapd
eap_server=1
channel=6
beacon_int=100
hw_mode=g
ieee80211n=1
wme_enabled=1
ht_capab=[SHORT-GI-20][SHORT-GI-40][HT40+]
supported_rates=60 90 120 180 240 360 480 540
basic_rates=60 120 240
max_num_sta=8
ap_max_inactivity=300
logger_syslog=-1
logger_syslog_level=2
logger_stdout=-1
logger_stdout_level=2
dump_file=/var/tmp/hostapd.dump
wps_state=0
device_name=XXXX
manufacturer=XXXX
model_name=XXXX
model_number=XXXX
The box having the QCA9377 chip is a PC running with windows. Dmesg log before crash:
root@freescale ~$ dmesg
. 1581.05 BogoMIPS (lpj=7905280)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available
CPU1: Booted secondary processor
CPU2: Booted secondary processor
CPU3: Booted secondary processor
Brought up 4 CPUs
SMP: Total of 4 processors activated (6324.22 BogoMIPS).
devtmpfs: initialized
print_constraints: dummy:
NET: Registered protocol family 16
print_constraints: vddpu: 725 <--> 1300 mV at 700 mV fast normal
print_constraints: vddcore: 725 <--> 1300 mV at 1150 mV fast normal
print_constraints: vddsoc: 725 <--> 1300 mV at 1200 mV fast normal
print_constraints: vdd2p5: 2000 <--> 2775 mV at 2400 mV fast normal
print_constraints: vdd1p1: 800 <--> 1400 mV at 1100 mV fast normal
print_constraints: vdd3p0: 2625 <--> 3400 mV at 3000 mV fast normal
hw-breakpoint: found 6 breakpoint and 1 watchpoint registers.
hw-breakpoint: 1 breakpoint(s) reserved for watchpoint single-step.
hw-breakpoint: maximum watchpoint size is 4 bytes.
L310 cache controller enabled
l2x0: 16 ways, CACHE_ID 0x410000c7, AUX_CTRL 0x02070000, Cache size: 1048576 B
IMX usb wakeup probe
the wakeup pdata is 0xbfe37100
bio: create slab <bio-0> at 0
mxs-dma mxs-dma-apbh: initialized
print_constraints: VDDA: 2500 mV
print_constraints: VDDIO: 3300 mV
machine_constraints_voltage: VDDD: unsupportable voltage constraints
reg-fixed-voltage reg-fixed-voltage.2: Failed to register regulator: -22
reg-fixed-voltage: probe of reg-fixed-voltage.2 failed with error -22
print_constraints: vmmc: 3300 mV
SCSI subsystem initialized
libata version 3.00 loaded.
spi_imx imx6q-ecspi.0: probed
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Freescale USB OTG Driver loaded, $Revision: 1.55 $
add wake up source irq 75
imx-ipuv3 imx-ipuv3.0: IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)
imx-ipuv3 imx-ipuv3.1: IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)
mxc_mipi_csi2 mxc_mipi_csi2: i.MX MIPI CSI2 driver probed
mxc_mipi_csi2 mxc_mipi_csi2: i.MX MIPI CSI2 dphy version is 0x3130302a
MIPI CSI2 driver module loaded
Advanced Linux Sound Architecture Driver Version 1.0.24.
Bluetooth: Core ver 2.16
NET: Registered protocol family 31
Bluetooth: HCI device and connection manager initialized
Bluetooth: HCI socket layer initialized
Bluetooth: L2CAP socket layer initialized
Bluetooth: SCO socket layer initialized
i2c-core: driver [max17135] using legacy suspend method
i2c-core: driver [max17135] using legacy resume method
Switching to clocksource mxc_timer1
NET: Registered protocol family 2
IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
TCP bind hash table entries: 65536 (order: 7, 786432 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
TCP reno registered
UDP hash table entries: 512 (order: 2, 16384 bytes)
UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
PMU: registered new PMU device of type 0
Static Power Management for Freescale i.MX6
wait mode is enabled for i.MX6
cpaddr = c0880000 suspend_iram_base=c0934000
PM driver module loaded
IMX usb wakeup probe
the wakeup pdata is 0xbfcc9e00
JFFS2 version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
msgmni has been set to 1758
alg: No test for stdrng (krng)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
mcu_i2c_probe ...
mxc_mipi_dsi mxc_mipi_dsi: i.MX MIPI DSI driver probed
MIPI DSI driver module loaded
mxc_sdc_fb mxc_sdc_fb.0: register mxc display driver hdmi
mxc_hdmi mxc_hdmi: Detected HDMI controller 0x13:0xa:0xa0:0xc1
fbcvt: 1920x1080@60: CVT Name - 2.073M9
imx-ipuv3 imx-ipuv3.0: IPU DMFC DP HIGH RESOLUTION: 1(0,1), 5B(2~5), 5F(6,7)
Console: switching to colour frame buffer device 240x67
mxc_sdc_fb mxc_sdc_fb.1: Can't get fb option for mxcfb1!
mxc_sdc_fb mxc_sdc_fb.2: register mxc display driver ldb
_regulator_get: get() with no identifier
imx-sdma imx-sdma: loaded firmware 1.1
imx-sdma imx-sdma: initialized
Serial: IMX driver
imx-uart.3: ttymxc3 at MMIO 0x21f0000 (irq = 61) is a IMX
imx-uart.2: ttymxc2 at MMIO 0x21ec000 (irq = 60) is a IMX
imx-uart.1: ttymxc1 at MMIO 0x21e8000 (irq = 59) is a IMX
imx-uart.0: ttymxc0 at MMIO 0x2020000 (irq = 58) is a IMX
console [ttymxc0] enabled, bootconsole disabled
imx-uart.4: ttymxc4 at MMIO 0x21f4000 (irq = 62) is a IMX
loop: module loaded
Can't recover from RESET HBA!
ahci: SSS flag set, parallel bus scan disabled
ahci ahci.0: AHCI 0001.0300 32 slots 1 ports 3 Gbps 0x1 impl platform mode
ahci ahci.0: flags: ncq sntf stag pm led clo only pmp pio slum part ccc apst
scsi0 : ahci_platform
ata1: SATA max UDMA/133 mmio [mem 0x02200000-0x02200fff] port 0x100 irq 71
m25p80 spi0.0: found m25p05-nonjedec, expected sst25vf016b
m25p80 spi0.0: m25p05-nonjedec (64 Kbytes)
Creating 2 MTD partitions on "m25p80":
0x000000000000-0x000000100000 : "bootloader"
mtd: partition "bootloader" extends beyond the end of device "m25p80" -- size truncated to 0x10000
0x000000010000-0x000000010000 : "kernel"
mtd: partition "kernel" is out of reach -- disabled
GPMI NAND driver registered. (IMX)
vcan: Virtual CAN interface driver
CAN device driver interface
flexcan netdevice driver
flexcan imx6q-flexcan.0: device registered (reg_base=c0a50000, irq=142)
flexcan imx6q-flexcan.1: device registered (reg_base=c0a58000, irq=143)
FEC Ethernet Driver
fec_enet_mii_bus: probed
rtl8192cu driver version=v4.0.2_9000.20130911
build time: Mar 29 2019 15:52:48
usbcore: registered new interface driver rtl8192cu
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller
fsl-ehci fsl-ehci.0: new USB bus registered, assigned bus number 1
fsl-ehci fsl-ehci.0: irq 75, io base 0x02184000
fsl-ehci fsl-ehci.0: USB 2.0 started, EHCI 1.00
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
add wake up source irq 72
fsl-ehci fsl-ehci.1: Freescale On-Chip EHCI Host Controller
fsl-ehci fsl-ehci.1: new USB bus registered, assigned bus number 2
fsl-ehci fsl-ehci.1: irq 72, io base 0x02184200
fsl-ehci fsl-ehci.1: USB 2.0 started, EHCI 1.00
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 1 port detected
usbcore: registered new interface driver cdc_acm
cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usbcore: registered new interface driver usbserial
USB Serial support registered for generic
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial Driver core
USB Serial support registered for cp210x
usbcore: registered new interface driver cp210x
cp210x: v0.09:Silicon Labs CP210x RS232 serial adaptor driver
USB Serial support registered for FTDI USB Serial Device
usbcore: registered new interface driver ftdi_sio
ftdi_sio: v1.6.0:USB FTDI Serial Converters Driver
ARC USBOTG Device Controller driver (1 August 2005)
mousedev: PS/2 mouse device common for all mice
input: gpio-keys as /devices/platform/gpio-keys/input/input0
Error: Driver 'tsc2007' is already registered, aborting...
i2c-core: driver [isl29023] using legacy suspend method
i2c-core: driver [isl29023] using legacy resume method
rtc-rx8025 1-0032: rtc core: registered rx8025 as rtc0
i2c /dev entries driver
Linux video capture interface: v2.00
mxc_v4l2_output mxc_v4l2_output.0: V4L2 device registered as video16
ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
mxc_v4l2_output mxc_v4l2_output.0: V4L2 device registered as video17
mxc_v4l2_output mxc_v4l2_output.0: V4L2 device registered as video18
mxc_v4l2_output mxc_v4l2_output.0: V4L2 device registered as video19
i2c-core: driver [mag3110] using legacy suspend method
i2c-core: driver [mag3110] using legacy resume method
imx2-wdt imx2-wdt.0: IMX2+ Watchdog Timer enabled. timeout=60s (nowayout=1)
Bluetooth: Virtual HCI driver ver 1.3
Bluetooth: HCI UART driver ver 2.2
Bluetooth: HCIATH3K protocol initialized
Bluetooth: Generic Bluetooth USB driver ver 0.6
usbcore: registered new interface driver btusb
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
mmc0: SDHCI controller on platform [sdhci-esdhc-imx.3] using DMA
ata1.00: ATA-9: SATA Slim 3MG2-P, M150821, max UDMA/133
mmc1: SDHCI controller on platform [sdhci-esdhc-imx.2] using DMA
ata1.00: 29323728 sectors, multi 1: LBA48 NCQ (depth 31/32)
mxc_vdoa mxc_vdoa: i.MX Video Data Order Adapter(VDOA) driver probed
ata1.00: configured for UDMA/133
scsi 0:0:0:0: Direct-Access ATA SATA Slim 3MG2-P M150 PQ: 0 ANSI: 5
VPU initialized
sd 0:0:0:0: [sda] 29323728 512-byte logical blocks: (15.0 GB/13.9 GiB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sda: sda1
mxc_asrc registered
sd 0:0:0:0: [sda] Attached SCSI disk
Thermal calibration data is 0x5534d769
Anatop Thermal registered as thermal_zone0
mmc0: new high speed DDR MMC card at address 0001
anatop_thermal_probe: default cooling device is cpufreq!
Registered led device: chg_now_led
mmcblk0: mmc0:0001 SEM04G 3.68 GiB
mmcblk0boot0: mmc0:0001 SEM04G partition 1 2.00 MiB
mmcblk0boot1: mmc0:0001 SEM04G partition 2 2.00 MiB
mmcblk0: p1
mmcblk0boot1: unknown partition table
mmcblk0boot0: unknown partition table
usb 2-1: new high speed USB device number 2 using fsl-ehci
caam caam.0: device ID = 0x0a16010000000000
caam caam.0: job rings = 2, qi = 0
alg: No test for authenc(hmac(md5),cbc(aes)) (authenc-hmac-md5-cbc-aes-caam)
caam caam.0: authenc-hmac-md5-cbc-aes-caam
alg: No test for authenc(hmac(sha1),cbc(aes)) (authenc-hmac-sha1-cbc-aes-caam)
caam caam.0: authenc-hmac-sha1-cbc-aes-caam
alg: No test for authenc(hmac(sha224),cbc(aes)) (authenc-hmac-sha224-cbc-aes-caam)
caam caam.0: authenc-hmac-sha224-cbc-aes-caam
alg: No test for authenc(hmac(sha256),cbc(aes)) (authenc-hmac-sha256-cbc-aes-caam)
caam caam.0: authenc-hmac-sha256-cbc-aes-caam
alg: No test for authenc(hmac(md5),cbc(des3_ede)) (authenc-hmac-md5-cbc-des3_ede-caam)
caam caam.0: authenc-hmac-md5-cbc-des3_ede-caam
alg: No test for authenc(hmac(sha1),cbc(des3_ede)) (authenc-hmac-sha1-cbc-des3_ede-caam)
caam caam.0: authenc-hmac-sha1-cbc-des3_ede-caam
hub 2-1:1.0: USB hub found
hub 2-1:1.0: 7 ports detected
alg: No test for authenc(hmac(sha224),cbc(des3_ede)) (authenc-hmac-sha224-cbc-des3_ede-caam)
caam caam.0: authenc-hmac-sha224-cbc-des3_ede-caam
alg: No test for authenc(hmac(sha256),cbc(des3_ede)) (authenc-hmac-sha256-cbc-des3_ede-caam)
caam caam.0: authenc-hmac-sha256-cbc-des3_ede-caam
alg: No test for authenc(hmac(md5),cbc(des)) (authenc-hmac-md5-cbc-des-caam)
caam caam.0: authenc-hmac-md5-cbc-des-caam
alg: No test for authenc(hmac(sha1),cbc(des)) (authenc-hmac-sha1-cbc-des-caam)
caam caam.0: authenc-hmac-sha1-cbc-des-caam
alg: No test for authenc(hmac(sha224),cbc(des)) (authenc-hmac-sha224-cbc-des-caam)
caam caam.0: authenc-hmac-sha224-cbc-des-caam
alg: No test for authenc(hmac(sha256),cbc(des)) (authenc-hmac-sha256-cbc-des-caam)
caam caam.0: authenc-hmac-sha256-cbc-des-caam
caam caam.0: cbc-aes-caam
caam caam.0: cbc-3des-caam
caam caam.0: cbc-des-caam
platform caam_jr.0: registering rng-caam
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
usbcore: registered new interface driver snd-usb-audio
mxc_hdmi_soc mxc_hdmi_soc.0: MXC HDMI Audio
usb 2-1.6: new high speed USB device number 3 using fsl-ehci
mxc_spdif mxc_spdif.0: MXC SPDIF Audio
Cirrus Logic CS42888 ALSA SoC Codec Driver
i2c-core: driver [cs42888] using legacy suspend method
i2c-core: driver [cs42888] using legacy resume method
sgtl5000 0-000a: Failed to get supply 'VDDD': -19
print_constraints: 0-000a: 850 <--> 1600 mV at 1200 mV normal
sgtl5000 0-000a: sgtl5000 revision 17
USB Host suspend begins
will suspend roothub and its children
ehci_fsl_bus_suspend begins, DR
ehci_fsl_bus_suspend ends, DR
host suspend ends
asoc: sgtl5000 <-> imx-ssi.1 mapping ok
imx_3stack asoc driver
asoc: mxc-spdif <-> imx-spdif-dai.0 mapping ok
asoc: mxc-hdmi-soc <-> imx-hdmi-soc-dai.0 mapping ok
ALSA device list:
#0: sgtl5000-audio
#1: imx-spdif
#2: imx-hdmi-soc
NET: Registered protocol family 26
nf_conntrack version 0.5.0 (14064 buckets, 56256 max)
ip_tables: (C) 2000-2006 Netfilter Core Team
TCP cubic registered
NET: Registered protocol family 17
can: controller area network core (rev 20090105 abi 8)
NET: Registered protocol family 29
can: raw protocol (rev 20090105)
can: broadcast manager protocol (rev 20090105 t)
Bluetooth: RFCOMM TTY layer initialized
Bluetooth: RFCOMM socket layer initialized
Bluetooth: RFCOMM ver 1.11
Bluetooth: BNEP (Ethernet Emulation) ver 1.3
Bluetooth: BNEP filters: protocol multicast
Bluetooth: HIDP (Human Interface Emulation) ver 1.2
lib80211: common routines for IEEE802.11 drivers
lib80211_crypt: registered algorithm 'NULL'
lib80211_crypt: registered algorithm 'WEP'
lib80211_crypt: registered algorithm 'CCMP'
lib80211_crypt: registered algorithm 'TKIP'
VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
Bus freq driver module loaded
Bus freq driver Enabled
mxc_dvfs_core_probe
DVFS driver module loaded
rtc-rx8025 1-0032: setting system clock to 2019-03-29 15:03:01 UTC (1553871781)
EXT3-fs: barriers not enabled
kjournald starting. Commit interval 5 seconds
EXT3-fs (mmcblk0p1): warning: checktime reached, running e2fsck is recommended
EXT3-fs (mmcblk0p1): using internal journal
EXT3-fs (mmcblk0p1): mounted filesystem with writeback data mode
VFS: Mounted root (ext3 filesystem) on device 179:1.
devtmpfs: mounted
Freeing init memory: 204K
usb 2-1.7: new high speed USB device number 4 using fsl-ehci
udevd (1508): /proc/1508/oom_adj is deprecated, please use /proc/1508/oom_score_adj instead.
Chip Version Info: CHIP_8188E_Normal_Chip_TSMC_D_CUT_1T1R_RomVer(0)
EEPROM ID = 0x8129
usbcore: registered new interface driver r8188eu
USB Serial support registered for GobiSerial
GobiSerial 2-1.6:1.1: GobiSerial converter detected
usb 2-1.6: GobiSerial converter now attached to ttyUSB0
GobiNet: 2018-06-22/SWI_2.52
GobiSerial 2-1.6:1.3: GobiSerial converter detected
usb 2-1.6: GobiSerial converter now attached to ttyUSB1
GobiSerial 2-1.6:1.2: GobiSerial converter detected
usb 2-1.6: GobiSerial converter now attached to ttyUSB2
usbcore: registered new interface driver GobiSerial
GobiSerial: 2018-06-22/SWI_2.33
GobiNet 2-1.6:1.0: eth1: register 'GobiNet' at usb-fsl-ehci.1-1.6, GobiNet Ethernet Device, 2a:a7:79:37:3c:35
USB Speed : USB 2.0
usbcore: registered new interface driver GobiNet
tun: Universal TUN/TAP device driver, 1.6
tun: (C) 1999-2004 Max Krasnyansky <[email protected]>
creating qcqmi0
Ethernet mode
flexcan imx6q-flexcan.0: writing ctrl=0x0329208d
flexcan imx6q-flexcan.1: writing ctrl=0x03292085
R8188EU: Firmware Version 11, SubVersion 1, Signature 0x88e1
MAC Address = 28:f3:66:f9:40:d8
R8188EU: INFO assoc success
eth0: Freescale FEC PHY driver [Generic PHY] (mii_bus:phy_addr=1:01, irq=-1)
Don't really know what you mean by "capture the over-the-air packets from the exchange between the QCA9377 and the RTL8188EU". You can find a capture done with Wireshark, but I'm not really sure this is what you need. capture.zip
I left that comment about packet capture intentionally vague. That way the abilities of my correspondent are effective screened. I have not yet looked at those packets.
I would like you to try branch v5.2.2.4. It builds with support for native cfg80211/nl80211. Your hostapd config file would need to use "driver=nl80211" rather than "driver=rtl871xdrv". Otherwise it should be the same.
Can't compile with this branch:
drivers/net/wireless/rtl8188eu/os_dep/ioctl_cfg80211.c: In function 'rtw_cfg80211_indicate_sta_assoc':
drivers/net/wireless/rtl8188eu/os_dep/ioctl_cfg80211.c:3395:18: error: 'STATION_INFO_ASSOC_REQ_IES' undeclared (first use in this function)
drivers/net/wireless/rtl8188eu/os_dep/ioctl_cfg80211.c:3395:18: note: each undeclared identifier is reported only once for each function it appears in
drivers/net/wireless/rtl8188eu/os_dep/ioctl_cfg80211.c:3396:8: error: 'struct station_info' has no member named 'assoc_req_ies'
drivers/net/wireless/rtl8188eu/os_dep/ioctl_cfg80211.c:3397:8: error: 'struct station_info' has no member named 'assoc_req_ies_len'
scripts/Makefile.build:305: recipe for target 'drivers/net/wireless/rtl8188eu/os_dep/ioctl_cfg80211.o' failed
make[4]: *** [drivers/net/wireless/rtl8188eu/os_dep/ioctl_cfg80211.o] Error 1
It seems that the v5.2.2.4 driver does not build with that old a kernel. The assoc_req_ies* members were added in 3.2. Unfortunately, it will not be easy to backport the changes.
I have not yet had a chance to look at your wireshark output yet.
Ok thanks, will try to update kernel but not sure it will work with the motherboard. I'll come back to you when I have something new.