Bug 43253
| Summary: | rtl8192se: regression in linux kernel 3.3.5 | ||
|---|---|---|---|
| Product: | Networking | Reporter: | Oleg Tsarev (zabivator) |
| Component: | Wireless | Assignee: | networking_wireless (networking_wireless) |
| Status: | RESOLVED CODE_FIX | ||
| Severity: | high | CC: | alan, Larry.Finger, linville |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | Subsystem: | ||
| Regression: | Yes | Bisected commit-id: | |
| Attachments: | Probable fix | ||
oleg (0) /external/video$ sudo ethtool -i wlan0
driver: rtl8192se
version: 3.3.4-3.fc16.x86_64
firmware-version: N/A
bus-info: 0000:03:00.0
supports-statistics: no
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
oleg (0) /external/video$ sudo iwconfig
em1 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"DIR-300NRU"
Mode:Managed Frequency:2.437 GHz Access Point: B8:A3:86:BA:D6:48
Bit Rate=54 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr=2347 B Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=70/70 Signal level=-35 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:168 Missed beacon:0
oleg (0) /external/video$
Created attachment 73319 [details]
Probable fix
This patch, which has just been merged with kernel 3.4-rc7+, fixes a racy condition associated with asynchronous firmware loading. The main difference for rtlwifi and friends between 3.3.4 and 3.3.5 is the switch from synchronous to asynch. firmware loading that is necessary due to changes in udev.
This patch will be backported to 3.3.X, and may be in 3.3.6.
Thank you a lot for your feedback. Will wait the backport... |
Hi everybody, I updated my fedora 16, and new version of kernel (3.3.5) installed. After that my wi-fi adapter never connect to any network (tries to connect, but withotu sucess), but see available networks ("iwlist scanning" works right). I try to reboot back to 3.3.4 kernel and everything works fine. Back to 3.3.5 - doesn't work again. What the information required for investigate & fix this problem? It is lines from dmesg: [ 11.085728] rtl8192se: rtl8192ce: FW Power Save off (module option) [ 11.085967] rtl8192se: Driver for Realtek RTL8192SE/RTL8191SE [ 11.085969] Loading firmware rtlwifi/rtl8192sefw.bin