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dz0ny / rt8192cu

Realtek driver for USB wlan cards: 8188C, 8192C
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system unstable when using rt8192cu wifi card as hostapd accesspoint #5

Open dizzy2 opened 10 years ago

dizzy2 commented 10 years ago

hi,

when using rtl 8192cu based wifi device as accesspoint (using this driver with hostapd), the system will end up hanging with dumping several rcu_sched stalls into kernel message log (dmesg, see the screenshot attached - unfortunately I have found no better way how to get the logs out of the unstable system, but I will keep trying). Just to make things clear - the accesspoint works as expected for some amount of time before it hangs (the time is quite unpredictable and varies from several minutes up to hours - the biggest uptime having AP on was cca 20hrs).

The system is gentoo linux, kernel 3.12.13-gentoo, x86_64, CPU Intel Core i7, QM67 chipset, please let me know if You need some further information or assistance with reproducing the bug...

Thank You guys for the great work Your are making here. Looking forward if You can help me further.

Dizzy

imag0194

comporell commented 10 years ago

Any update on this? I'we been trying to user hostapd with no luck on 3.8 debian

dizzy2 commented 10 years ago

Unfortunately not :-( The only way how get my system working was to remove the driver (and replace the device by traditional accesspoint attached to local ethernet). Since then my system is up&running without any problem for more than 3 weeks. So the problem seems to be in the driver (or HW) - I just wonder if I can do anything to help with the analysis...

comporell commented 10 years ago

Well u progressed way farther than I did. I have failed to run hostapd with this. I received nl80211 driver initialization failed errotr then tried to compile it from source and only got incompatibility issues with nl80211. I wonder how you managed to run it.