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wlan freezes in raspberry pi 3/PiZeroW (Not 3B+)
I put the same sd card (running debian 8 jessie, kernel 4.1.19) from the raspberry pi 2 with usb wifi (EDIMAX EW-7811UN Wireless USB Adapter, 150 Mbit/s, IEEE802.11b/g/n) into the new raspberry pi 3 using integrated wlan. Since then the wlan freezes after while (several hours) of usage couldn't find out if it's due to havy wifi usage or not, because I haven't change the software I guess it has to do with the new hardware. When the wlan freezes the pi can't be reached any longer, neither ifdown + ifup nor restart networking service helps in this case, I have to reboot the system to get it back to work, syslog doesn't say much only this: dhcpcd[522]: wlan0: fe80::8af7:c7ff:fece:5912: expired option 25,
I've tried to change these settings so far, but without improvement:
sudo nano /etc/network/interfaces wireless-power off
sudo nano /etc/sysctl.conf at the end of the file add the following line vm.min_free_kbytes = 16384
sudo nano /boot/cmdline.txt At the end of the line, add: smsc95xx.turbo_mode=N dwc_otg.dma_enable=1 dwc_otg.dma_burst_size=256
EDIMAX EW-7811UN.... That's using rtl8188cus chipset, IIRC.
If you haven't already got one, create /etc/modprobe.d/8192cu.conf, with content....
Disable power management
options 8192cu rtw_power_mgnt=0 rtw_enusbss=0
The rpi3 actually uses the brcmfmac driver for the inbuilt wifi there is an issue that requires the power saving / mangement to be turned off
I think the newer raspian kernels have patched this already to disable power saving by default but I don't think it's in this 4.5 branch yet
What I'm doing at the moment (gentoo install) is the following at bootup to disable the power saving on the wifi card
iw wlan0 set power_save off
The rpi3 actually uses the brcmfmac driver for the inbuilt wifi
Yes, I know. Oh I see. He's not using the EDIMAX EW-7811UN dongle anymore. He used to use it with RPi2.
yes I don't use the usb wifi any longer, how do I set up the cmd line to turn off the power management? crontab @reboot iw wlan0 set power_save off
Seems to work since I have turned the powermanagement off I haven't had another wlan crash.
Just to mentioned it, to restart the wlan automatically after a crash, this here helps: sudo cp /etc/wpa_supplicant/ifupdown.sh /etc/ifplugd/action.d/ifupdown
BTW, latest apt-get upgrade kernel has power management disabled by default. @dh-connect does this work for you if you remove your current workaround?
it's still crashing after the latest upgrade, now i get this error in syslog: brcmfmac: brcmf_sdio_bus_txdata: out of bus->txq !!!
When you say it's crashing, are there symptoms other than the error message?
no, just the one I have posted here but it is in the log many times
the wlan stops working, i can still work with it but to get the wlan back working I have to reboot it
I've tried a few things, but wlan still breaks down
to answer the question above when I take back the configuration wireless-power off in /etc/network/interfaces and reboot and check the settings with iwconfig the power management ist turned back on so by default I wouldn't say that this is diasbled so I will leave the configuration
I tried that with kernel 4.1.19 and now also with kernel 4.1.20 ... no change
when the wlan crashed and i try to turn it back on with ifdown and ifup wlan0 I get this: Error for wireless request "Set Power Management" (8B2C) : SET failed on device wlan0 ; Invalid exchange.
I also got a few more error in syslog:
dhcpcd[532]: wlan0: xxx: expired option 25
Mar 21 17:29:35 raspberrypi kernel: [ 6627.337503] brcmfmac: _brcmf_set_multicast_list: Setting mcast_list failed, -52 Mar 21 17:29:36 raspberrypi wpa_supplicant[6318]: Successfully initialized wpa_supplicant Mar 21 17:29:36 raspberrypi dhcpcd[532]: wlan0: carrier lost
Mar 21 17:29:43 raspberrypi kernel: [ 6635.337616] brcmfmac: _brcmf_set_multicast_list: Setting mcast_list failed, -52
Mar 21 17:29:45 raspberrypi kernel: [ 6637.337588] brcmfmac: brcmf_do_escan: error (-52) Mar 21 17:29:45 raspberrypi kernel: [ 6637.337602] brcmfmac: brcmf_cfg80211_scan: scan error (-52)
Mar 21 17:29:47 raspberrypi kernel: [ 6639.337596] brcmfmac: _brcmf_set_multicast_list: Setting allmulti failed, -52 Mar 21 17:29:49 raspberrypi kernel: [ 6641.337632] brcmfmac: _brcmf_set_multicast_list: Setting BRCMF_C_SET_PROMISC failed, -52
is there anything else I could try?
also these:
Mar 21 21:26:55 raspberrypi dhcpcd[526]: wlan0: xxx: expired option 25 Mar 21 21:28:54 raspberrypi kernel: [ 1958.899715] brcmfmac: brcmf_sdio_hostmail: Unknown mailbox data content: 0x40012 Mar 21 21:30:16 raspberrypi dhcpcd[526]: wlan0: xxx is unreachable, expiring it
I'm not surprised that iwconfig thinks the device has power-saving enabled - I blocked it within the driver itself, and either the state is saved in the higher layers or there is another change required in order to report it correctly. Either way, the evidence is strong that we have avoided the power-saving bugs, but some other problems still remain.
Do you have any rough figures for the time-to-failure and roughly how much data might have been transferred (from ifconfig)?
yes I do, when I have just the webserver running with not much traffic (less than 100 MB) it lasts a day or two, when i transfer large data files like 1 GB wlan crashes within 1 hour
anything I can provide to help to find the bug?
here are some error from syslog:
Mar 29 14:20:56 raspberrypi dhcpcd[535]: wlan0: xxx: expired option 25 Mar 29 14:30:15 raspberrypi dhcpcd[535]: wlan0: xxx is unreachable, expiring it Mar 29 17:18:42 raspberrypi kernel: [186148.102420] brcmfmac: brcmf_sdio_bus_txdata: out of bus->txq !!! Mar 29 17:18:43 raspberrypi kernel: [186149.101045] brcmfmac: brcmf_sdio_bus_txdata: out of bus->txq !!! Mar 29 17:18:43 raspberrypi kernel: [186149.101145] brcmfmac: brcmf_sdio_bus_txdata: out of bus->txq !!! Mar 29 17:18:44 raspberrypi kernel: [186150.101209] brcmfmac: brcmf_sdio_bus_txdata: out of bus->txq !!! Mar 29 17:18:50 raspberrypi wpa_supplicant[478]: wlan0: CTRL-EVENT-DISCONNECTED bssid=xxx reason=3 locally_generated=1 Mar 29 17:18:50 raspberrypi kernel: [186156.181033] brcmfmac: brcmf_cfg80211_disconnect: error (-52) Mar 29 17:18:52 raspberrypi kernel: [186158.181028] brcmfmac: send_key_to_dongle: wsec_key error (-52) Mar 29 17:18:54 raspberrypi kernel: [186160.181046] brcmfmac: send_key_to_dongle: wsec_key error (-52) Mar 29 17:18:56 raspberrypi kernel: [186162.181048] brcmfmac: send_key_to_dongle: wsec_key error (-52) Mar 29 17:18:58 raspberrypi kernel: [186164.181049] brcmfmac: send_key_to_dongle: wsec_key error (-52) Mar 29 17:18:58 raspberrypi kernel: [186164.185477] cfg80211: Calling CRDA to update world regulatory domain Mar 29 17:18:58 raspberrypi dhcpcd[535]: wlan0: carrier lost Mar 29 17:18:58 raspberrypi wpa_supplicant[7354]: Successfully initialized wpa_supplicant Mar 29 17:18:58 raspberrypi kernel: [186164.314511] brcmfmac: brcmf_cfg80211_reg_notifier: not a ISO3166 code Mar 29 17:18:58 raspberrypi kernel: [186164.314541] cfg80211: World regulatory domain updated: Mar 29 17:18:58 raspberrypi kernel: [186164.314548] cfg80211: DFS Master region: unset Mar 29 17:18:58 raspberrypi kernel: [186164.314555] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time) Mar 29 17:18:58 raspberrypi kernel: [186164.314565] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A) Mar 29 17:18:58 raspberrypi kernel: [186164.314573] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A) Mar 29 17:18:58 raspberrypi kernel: [186164.314581] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A) Mar 29 17:18:58 raspberrypi kernel: [186164.314592] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A) Mar 29 17:18:58 raspberrypi kernel: [186164.314602] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s) Mar 29 17:18:58 raspberrypi kernel: [186164.314611] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s) Mar 29 17:18:58 raspberrypi kernel: [186164.314645] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A) Mar 29 17:18:58 raspberrypi kernel: [186164.314654] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
Any update from Broadcom if this is a bug which will be fixed? I now have a cron job setup to bring down and up wlan0 when it fails to ping.
quick update from my side, i could get the problem fixed seems to be driver related, i installed Ubuntu MATE 16.04 with kernel 4.4.8 and haven't had any problems with wifi since
i mean they advertise is: "Ubuntu MATE 16.04 also has fully working Bluetooth and Wifi on the Raspberry Pi 3" which seems true
maybe it also works with a new Debian release, which i can not tell
@juched78 Are you running a 4.4 kernel? If not, please run sudo rpi-update to get the latest 4.4.8 build and see if that suffers the same problem.
The Broadcom drivers have changed significantly since 4.1, and our 4.4 tree includes back-ports of some fixes that went into 4.5. I'm not aware of any outstanding bugs apart from the failure to wake from sleep (power management is still disabled) - channels 12 & 13 are usable where permitted, and Ad Hoc mode doesn't crash - but there may still be lurking issues.
Oh, there is one reported bug still in 4.4.8 - apparently heavy use of hostapd can lead to a kernel warning (see https://github.com/raspberrypi/linux/issues/1375).
I am running: Linux XXX 4.4.8-v7+ #880 SMP Fri Apr 22 21:55:04 BST 2016 armv7l GNU/Linux
Apr 27 2016 11:06:18 Copyright (c) 2012 Broadcom version 9b52ab7b475f4a056658fd2d95d2440b32167390 (clean) (release)
With my Netgear R7000 running Shibby Tomato, around 2 days in the wifi drops, and in the sys logs I see:
CTRL-EVENT-DISCONNECTED
brcmfmac: brcmf_link_down: WLC_DISASSOC failed (-52)
brcmfmac: send_key_to_dongle: wsec_key error (-52)
...
brcmfmac: brcmf_do_escan: error (-52)
...
wpa_supplicant[506]: wlan0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
...
brcmfmac: brcmf_cfg80211_reg_notifier: not a ISO3166 code
(then I see it scan and re-pick my country code CA)
brcmfmac: _brcmf_set_multicast_list: Setting allmulti failed, -52
brcmfmac: _brcmf_set_multicast_list: Setting BRCMF_C_SET_PROMISC failed, -52
brcmfmac: _brcmf_set_multicast_list: Setting mcast_list failed, -52
Then it seems to never reconnect...
Using sudo ifdown wlan0 followed by sudo ifup wlan0 brings back my connection.
Just upgraded to: Linux JuchePi 4.4.8-v7+ #881 SMP Sat Apr 30 12:16:50 BST 2016 armv7l GNU/Linux
Not sure what is all different from the 22nd to the 30th. I will monitor the connection.
My RPi 3 also hit that problem. I got few different kernel messages. Mainly one of those below. After that I can' get the WiFi working, bringing wlan0 down then up does not help.
May 09 21:24:25 osmc kernel: brcmfmac: brcmf_sdio_hostmail: Unknown mailbox data content: 0x40012
May 09 22:00:15 osmc kernel: brcmfmac: brcmf_sdio_bus_txdata: out of bus->txq !!!
May 09 22:00:18 osmc kernel: brcmfmac: brcmf_sdio_bus_txdata: out of bus->txq !!!
May 10 00:51:10 osmc kernel: brcmfmac: brcmf_cfg80211_get_tx_power: error (-52)
May 10 00:51:12 osmc kernel: brcmfmac: brcmf_proto_bcdc_query_dcmd: brcmf_proto_bcdc_msg failed w/status -110
May 10 00:53:16 osmc kernel: brcmfmac: brcmf_do_escan: error (-52)
May 10 00:53:16 osmc kernel: brcmfmac: brcmf_cfg80211_scan: scan error (-52)
Raspberry is powered from original power adapter for version 3. I'm running latest OSMC: $ uname -a Linux osmc 4.4.8-3-osmc #1 SMP PREEMPT Sun May 1 18:57:43 UTC 2016 armv7l GNU/Linux
Still monitoring. I had openhab go offline after running 3 days but for some reason I could still ssh into the Pi which I usually couldn't. The top of the hour and the wifi script ran to bring down and bring up the connection and then it reconnected to my openhab org. Odd. Will keep watching.
I am also experiencing the same issue - dmesg trace as follows:
send_key_to_dongle: wsec_key error (-52)
brcmf_cfg80211_del_station: SCB_DEAUTHENTICATE_FOR_REASON failed -52
brcmf_proto_bcdc_query_dcmd: brcmf_proto_bcdc_msg failed w/status -110
brcmf_cfg80211_get_tx_power: error (-52)
Usage:
rp3 is being used as a router/access point
Connectivity length seems random - I've had as high as two weeks, and as bad as a few minutes. Lately it's been going out every 20 minutes or so. Bringing wlan0 down and back up does not resolve the issue - a full reboot is required.
Problem seems to be exacerbated while streaming Netflix from my AppleTV. Though this was not the case when I had the two weeks of uptime.
I'm on 4.4.10-v7+
I switched the channel from 13 to 6 to check if that could be the problem (there were some defects about the high channels) and since then I haven't had a WiFi freez. But that could be a coincidence...
Changing access point channels didn't help. WiFi still breaks. Last few times I had to restart few times in a row to get it working.