On Wed, Apr 27, 2016 at 7:56 AM, Craig McQueen <craig.mcqueen@xxxxxxxxxxxxxx> wrote: > Vishal Thanki wrote: >> Hi, >> >> On Wed, Apr 27, 2016 at 02:21:36PM +1000, Craig McQueen wrote: >> > I have a D-Link DWA-140 USB Wi-Fi device which is rt2800 based (5392 >> chipset). I've been testing it on a BeagleBone Black running an Ubuntu 16.04 >> image (4.4.6 kernel). >> > >> > 1) Install Ubuntu 16.04 on a BeagleBone Black. >> > 2) Add lines to /etc/network/interfaces for the device to connect to a >> WPA2 access point. >> > 3) Plug the rt2800 USB Wi-Fi device into the BeagleBone Black. >> > >> > Apparently when it tries to connect to the access point, I get a kernel panic. >> If I don't configure it (step 2 above) then the kernel panic doesn't happen. >> > >> > I've tested this with two access points: my Android phone acting as a >> hotspot, and a cheap TP-Link TD-W8968. >> > >> > Serial debug console shows: >> > ... >> >> I have seen a similar crash and fixed it as a part of following commit: >> >> 8b4c0009313f3d42e2540e3e1f776097dd0db73d >> >> But it would be helpful if you can get paste the entire kernel log. >> Because in my case, I used to see a USB Disconnect event for the rt2800 >> driver and the crash was caused due to that. > > Okay, see the attached file. I can't see a USB Disconnect event for the rt2800, until the end (line 561, timestamp 222.861630) which is when I unplugged the USB hub. > The attached file seem to report a different kind of crash (soft lockup) while the crash reported in the 1st email of yours is different (NULL pointer dereference). I am not sure about this soft lockup problem though. > -- > Craig McQueen > -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
