Ulf, many thanks for the mention. If I hit the last brick wall, I'll hire you to make the fix available.
Meanwhile, some interesting developments. Curious about the grounding conversation, I removed the BBB from the metal case in which it was enclosed, and placed it on a non-conductive mat. Powered it on with the scanner attached, and it works as it should. BUT, I have not had the Babble Interrupt issue again. Even handling the bare board, the USB wire, the scanner, all of which might have triggered the interrupt before, the scanner continues to work. After 2 days, and still no interruption, I power-cycled the BBB, and again, it has run perfectly with no interruptions for another 2 days, even with the continued attempts to cause the interrupts to occur. By now, I would have had easily a dozen Babble Interrupts with the metal case. I'm going to restore the ondemand startup script and power control settings to 'normal' and continue testing. On Saturday, November 16, 2013 12:39:56 AM UTC-5, Ulf Samuelsson wrote: > > Den lördagen den 31:e augusti 2013 kl. 17:42:09 UTC+2 skrev > [email protected]: > > I'm using my Beaglebone Black with a USB temperature sensor. It works > very well, however I noticed monitoring stopped last night after roughly 35 > days uptime. This morning I looked more closely into the log file and > noticed: > > > > > > kernel: [2892926.929555] CAUTION: musb: Babble Interrupt Occurred > > > > > > > > I wasn't able to successfully reset the USB device and before I was able > to restart the BBB stopped responding. I power-cycled it and it was back to > normal again. Any ideas what caused this kernel message? > > Work as an independent linux consultant, and I think I can fix this > problem. > Offered TI to do this, but they said it would be fixed in 3.12, so no > interest. > Well, 3.12 is here and no fix as far as I can see in the code. > I estimate 2 days work to fix with testing. > > /ulf > -- 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.
