From: Thierry Moreau <thierry.moreau@connotech.com>
To: Larry Finger <Larry.Finger@lwfinger.net>, linux-wireless@vger.kernel.org
Subject: Re: rtlwifi (rtl8192ce) consistently reports EBUSY error, but scanning works
Date: Wed, 05 Mar 2014 19:16:08 +0000 [thread overview]
Message-ID: <531777F8.5060506@connotech.com> (raw)
In-Reply-To: <53175368.50009@lwfinger.net>
[-- Attachment #1: Type: text/plain, Size: 688 bytes --]
On 03/05/14 16:40, Larry Finger wrote:
>
> Please give me the exact set of commands you use to get this problem. If
> possible, capture the console output. As I am currently running
> long-term tests of the latest version of rtl8192ce using an RTL8188CE
> (10ec:8176), it will be a perfect time to test.
>
Here is the command script, and the console log
(....sh 2>&1 | tee ....log)
Is it possible that the Shuttle system be arranged with a digital output
enabling/inhibiting the Realtek wifi interface active participation in
wifi protocol?
I did ask Shuttle tech support, but in any event I don't want to induce
you to troubleshoot a specific system.
Thanks,
-- Thierry Moreau
[-- Attachment #2: shuttle-x36vl-rtl8192ce-ebusy.log --]
[-- Type: text/plain, Size: 7898 bytes --]
+ uname -a
Linux dodeca1er 3.14.0-rc5 #1 SMP Wed Mar 5 15:38:33 UTC 2014 x86_64 Intel(R) Atom(TM) CPU D2550 @ 1.86GHz GenuineIntel GNU/Linux
+ grep -i wifi -C 4 -n
+ dmesg
711-[ 2.581616] gma500 0000:00:02.0: trying to get vblank count for disabled pipe 1
712-[ 2.771178] usb 5-2: new low-speed USB device number 2 using uhci_hcd
713-[ 2.832203] fbcon: psbdrmfb (fb0) is primary device
714-[ 2.832262] rtl8192ce:_rtl92ce_read_chip_version():<0-0> Chip Version ID: B_CUT_88C
715:[ 2.844335] rtl8192ce: Using firmware rtlwifi/rtl8192cfwU_B.bin
716-[ 2.939453] usb 5-2: New USB device found, idVendor=045e, idProduct=0780
717-[ 2.939458] usb 5-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
718-[ 2.939462] usb 5-2: Product: Comfort Curve Keyboard 3000
719-[ 2.939465] usb 5-2: Manufacturer: Microsoft
--
725-[ 3.287718] gma500 0000:00:02.0: fb0: psbdrmfb frame buffer device
726-[ 3.287723] gma500 0000:00:02.0: registered panic notifier
727-[ 3.287820] [drm] Initialized gma500 1.0.0 2011-06-06 for 0000:00:02.0 on minor 0
728-[ 3.396518] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
729:[ 3.397145] rtlwifi: wireless switch is on
730-[ 5.834746] Adding 16777212k swap on /dev/sda6. Priority:42 extents:1 across:16777212k
731-[ 5.859658] Adding 16777212k swap on /dev/sda7. Priority:52 extents:1 across:16777212k
732-[ 5.883344] Adding 16777212k swap on /dev/sda8. Priority:62 extents:1 across:16777212k
733-[ 6.872268] gzip (166) used greatest stack depth: 3864 bytes left
+ lsmod
Module Size Used by
rtl8192ce 71392 0
gma500_gfx 139440 1
rtl_pci 24810 1 rtl8192ce
rtlwifi 70066 2 rtl_pci,rtl8192ce
rtl8192c_common 53859 1 rtl8192ce
drm_kms_helper 28143 1 gma500_gfx
+ cat
+ iwconfig
eth0 no wireless extensions.
lo no wireless extensions.
sit0 no wireless extensions.
wlan1 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Encryption key:off
Power Management:on
+ cat
+ iw dev wlan1 info
Interface wlan1
ifindex 4
wdev 0x1
addr 64:5a:04:aa:f8:16
type managed
wiphy 0
+ cat
+ iw dev wlan1 set channel 2
command failed: Device or resource busy (-16)
+ cat
+ iw dev wlan1 scan
command failed: Network is down (-100)
+ cat
+ ip link set up wlan1
+ cat
+ iw dev wlan1 scan
BSS d8:6c:e9:29:e5:75(on wlan1)
TSF: 1358921377410 usec (15d, 17:28:41)
freq: 2412
beacon interval: 100 TUs
capability: ESS Privacy ShortSlotTime APSD (0x0c11)
signal: -74.00 dBm
last seen: 929 ms ago
SSID: BELL417
Supported rates: 1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0
DS Parameter set: channel 1
ERP: Barker_Preamble_Mode
Extended supported rates: 6.0 12.0 24.0 48.0
HT capabilities:
Capabilities: 0x106e
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
No RX STBC
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 32767 bytes (exponent: 0x002)
Minimum RX AMPDU time spacing: 4 usec (0x05)
HT RX MCS rate indexes supported: 0-23, 32
HT TX MCS rate indexes are undefined
HT operation:
* primary channel: 1
* secondary channel offset: above
* STA channel width: any
* RIFS: 0
* HT protection: nonmember
* non-GF present: 0
* OBSS non-GF present: 0
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
Secondary Channel Offset: no secondary (0)
RSN: * Version: 1
* Group cipher: CCMP
* Pairwise ciphers: CCMP
* Authentication suites: PSK
* Capabilities: 1-PTKSA-RC 1-GTKSA-RC (0x0000)
WMM: * Parameter version 1
* u-APSD
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
BSS Load:
* station count: 0
* channel utilisation: 11/255
* available admission capacity: 31250 [*32us]
Overlapping BSS scan params:
* passive dwell: 20 TUs
* active dwell: 10 TUs
* channel width trigger scan interval: 300 s
* scan passive total per channel: 200 TUs
* scan active total per channel: 20 TUs
* BSS width channel transition delay factor: 5
* OBSS Scan Activity Threshold: 0.25 %
Extended capabilities: HT Information Exchange Supported
Country: CA Environment: Indoor/Outdoor
Channels [1 - 11] @ 16 dBm
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Response Type: 3 (AP)
* UUID: 28802880-2880-1880-a880-d86ce929e575
* Manufacturer: Ralink Technology, Corp.
* Model: Ralink Wireless Access Point
* Model Number: RT2860
* Serial Number: 12345678
* Primary Device Type: 6-0050f204-1
* Device name: RalinkAPS
* Config methods: Label, PBC
* RF Bands: 0x1
+ cat
+ iwlist wlan1 scanning
wlan1 Scan completed :
Cell 01 - Address: D8:6C:E9:29:E5:75
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=30/70 Signal level=-80 dBm
Encryption key:on
ESSID:"BELL417"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000013c6606a682
Extra: Last beacon: 987ms ago
IE: Unknown: 000742454C4C343137
IE: Unknown: 010882848B961224486C
IE: Unknown: 030101
IE: Unknown: 2A0104
IE: Unknown: 32040C183060
IE: Unknown: 2D1A6E1016FFFFFF0001000000000000000000000000030000000000
IE: Unknown: 3D1601050100000000000000000000000000000000000000
IE: Unknown: 3E0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
IE: Unknown: 0B0500000B127A
IE: Unknown: 4A0E14000A002C01C800140005001900
IE: Unknown: 7F0101
IE: Unknown: DD07000C4300000000
IE: Unknown: 0706434120010B10
IE: Unknown: DD9D0050F204104A0001101044000102103B000103104700102880288028801880A880D86CE929E5751021001852616C696E6B20546563686E6F6C6F67792C20436F72702E1023001C52616C696E6B20576972656C6573732041636365737320506F696E74102400065254323836301042000831323334353637381054000800060050F20400011011000952616C696E6B415053100800020084103C000101
+ cat
+ iwconfig wlan1 channel 2
Error for wireless request "Set Frequency" (8B04) :
SET failed on device wlan1 ; Device or resource busy.
+ cat
+ ip link set down wlan1
+ cat
+ iw dev wlan1 interface add wlan2 type managed
+ cat
+ iwconfig
eth0 no wireless extensions.
lo no wireless extensions.
sit0 no wireless extensions.
wlan1 IEEE 802.11bgn ESSID:off/any
Mode:Managed Frequency:2.417 GHz Access Point: Not-Associated
Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Encryption key:off
Power Management:off
rename5 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Encryption key:off
Power Management:on
+ cat
+ iw dev rename5 set channel 2
command failed: Device or resource busy (-16)
+ cat
[-- Attachment #3: shuttle-x36vl-rtl8192ce-ebusy.sh --]
[-- Type: application/x-sh, Size: 536 bytes --]
next prev parent reply other threads:[~2014-03-05 19:15 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-05 6:36 rtlwifi (rtl8192ce) consistently reports EBUSY error, but scanning works Thierry Moreau
2014-03-05 7:12 ` Larry Finger
2014-03-05 16:27 ` Thierry Moreau
2014-03-05 16:40 ` Larry Finger
2014-03-05 19:16 ` Thierry Moreau [this message]
2014-03-06 14:54 ` Peter Wu
2014-03-06 18:59 ` Thierry Moreau
2014-03-06 15:57 ` Larry Finger
2014-03-06 17:40 ` Dan Williams
2014-03-05 10:51 ` Peter Wu
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