Thanks for the update, Mike. We are experimenting with some 3.12 kernels and it certainly seems to change/improve the problems we are seeing. Not sure if it is 100% yet but it has definitely made a difference.
On Saturday, November 9, 2013 2:17:47 AM UTC-8, Mike Bremford wrote: > > I switched up to Kernel 3.12 and that certainly fixed my stability issues > with USB - haven't seen any USB related issues since then, wireless is > fine, 3G modem is fine, everything working. Unfortunately I've lost my > UARTs, but that's a different story and no doubt one that will resolve > itself as more time is spent on getting 3.12 to stable. > > Certainly for anyone else having similar USB issues, there's a good chance > kernel 3.8 is the cause and kernel 3.12 is the solution > > > > On 8 November 2013 21:39, <[email protected] <javascript:>> wrote: > >> I should also add that all of these USB devices work rock solid running >> the same code and drivers on an intel laptop with Ubuntu. >> >> >> On Friday, November 8, 2013 1:15:19 PM UTC-8, [email protected] wrote: >>> >>> We have a system with many USB peripherals, and we have done a lot of >>> experimenting with them. >>> Some peripherals play nicer than others, and some cause problems right >>> away. In general, the more USB traffic there is, the more likely we are to >>> have problems, and the sooner we see system crashes etc. >>> >>> Our Huawei Cell modem seems to cause problems, as do some wifi adapters, >>> and some Phidget interface devices, especially with lots of data flowing. >>> By itself our Logitech quickcam pro 9000 seems OK, but when we are using >>> it along with other devices we see problems. >>> Simple keyboards/mice, bluetooth adapters, and GPS serial ports seem OK. >>> Sometimes by minimizing the number of devices attached it mitigates but >>> does not solve the USB connects/disconnects and system crashes. >>> >>> >>> On Friday, November 8, 2013 11:02:20 AM UTC-8, Philip Polstra wrote: >>>> >>>> Have you seen any issues with a specific type of USB device? I have >>>> had good luck with the Alfa wireless adapters, but have seen issues with >>>> some other adapters. YMMV. >>>> >>>> >>>> On Fri, Nov 8, 2013 at 12:51 PM, <[email protected]> wrote: >>>> >>>>> 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. >>>>> >>>> >>>> -- >> 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] <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- 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.
