We have seen similar issues with USB devices on the BBB and are pretty mystified. We suspect a low-level bug in the USB drivers. Did you ever get a good resolution?
BTW, on the HDMI console you will probably not see kernel panic messages- they are usually brought out only on the serial header, for which you will need a 3.3V USB/serial FTDI adapter. We also see lots of warnings and USB connect/disconnects in the system logs. On Saturday, November 2, 2013 6:30:44 AM UTC-7, [email protected] wrote: > > Hi all > > New here, but I've been experimenting with the BeagleBone black for a few > months now with much success - I2C, SPI, ADC, GPIO, UARTS are all working > for me, and I have a my custom cape wining it's way from the fab to me as I > type. But now I'm trying to integrate it with the USB peripherals I'll need > and I am getting constant freezes. > > My setup. I have a good power supply (3A 5V) connected via the barrel > connector. I have a powered USB hub from a reputable manufacturer and which > also has a 3A supply. In that hub I have a bluetooth dongle, an Atheros 9K > based Wifi dongle, and a Huawei E3131 3G modem. There's also an ethernet > connection. I'm running a system derived from the Ubuntu self-installer on > eLinux.org (ie that plus updates and a few additional packages) with > the 3.8.13-bone28 kernel. > > The symptoms are after a variable number of hours the device hangs. The > heartbeat LED stops and it drops off the network. I'm normally running with > HDMI disabled but when I enable it I see nothing on the screen except the > console login - no panic message, although when it's hung the cursor stops > blinking. I have to power cycle it and when it comes back there is nothing > in the logs. > > So I haven't got much to work from here. I had loads of issues with > another Wifi card so switched to one with the atheros chipset, but I still > suspect it's the USB subsystem causing the problems as I had no issues > until I started plugging in devices (plus the hotplug doesn't seem to work > reliably under 3.8.13). > > So I guess my questions are: > > 1. Does anyone have any suggestions - I gather a few people have been here > before me. > > 2. Is there any way I can get some logs out of this? I've been running > LInux for 20 years but am new to embedded, and I find a crash with no panic > message quite disconcerting! > > 3. Is it likely to be hardware or software causing this? The beaglebone > black is about 3 months old, so I think it's the latest revision. > > 4. At this point I guess my next option is upgrading to the EXPERIMENTAL > or TESTING kernels from Robert Nelson (at 3.12.0-rc3 and rc7 respectively > at the moment) - has anyone tried these, and are they fit for purpose? > > Thanks in advance. > > > Cheers... Mike > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
