Try with a different software package, e.g. http://elinux.org/BeagleBoardUbuntu (I'd highly recommend using this over Angstrom in any case) If you have similar problems it might help point to a HW issue.
On Monday, 3 February 2014 08:04:23 UTC+13, Vladimir B wrote: > > Hi All, > > I am trying to rule out SW issues with my BBB (HW Rev A5C) running > Angstrom. First I am going to give a bit of background on when the issues > started and then provide dumps of crashed as seen via UART. > > > > 1. BBB was working fine for quite some time. > 2. Then I tried to switch from wired ethernet to wireless by plugging > in UWN200 ( > http://www.logicsupply.com/components/networking/wireless/uwn200/) > while BBB was powered by DC adapter. > 3. My SSH over wired Ethernet froze. > 4. I removed the UWN200 and rebooted a device but could not longer > connect via SSH with wired ethernet > 5. Connecting via USB (client) I could not get network connection > to 192.168.7.2 either. As I realized later I did not even have usb0 > listed > when running ifconfig > 6. At this point I connected via UART > 7. I could see that the kernel was crashing with NULL pointer > dereference Oops > 8. Every few restarts it would get past this oops > 9. I shutdown BBB and looked to upgrade to latest Angstrom a few days > later, thinking maybe I am just a lucky one to hit a real bug in the kernel > 10. I downloaded the following image > > https://s3.amazonaws.com/angstrom/demo/beaglebone/BBB-eMMC-flasher-2013.09.04.img.xzinto > SD card > 11. BBB was booted from SD by holding the boot button. > 12. Flashing process was problematic, it took a few reboots (about) > from SD card for eMMC flashing to complete (4 solid LEDs) without kernel > Oopsing > - One of the Oopses was odd as it was for "invalid instruction" > > > To me this feels like a HW problem due to failures manifesting themselves > in different ways. Segfaults in the apps, NULL pointer dereferences in the > kernel, Soft CPU lockups. But I would like to rule out a user error. > > Few observations: > > - I have run mtest from uboot without any errors being detected > - Same for memtester > - Pressing rest button does not always reboot the device. Sometimes > holding power button down is the only way to reboot the BBB. But sometimes > it works just fine. > - For a few reboots accessing BBB via HTTP would causes kernel Oopses. > Trying it out just now and it worked just fine > > > The below is done post flashing to the latest angstrom: > > - systemd once segfaulted during boot: http://pastebin.com/YFuxNs8e > - some times system boots just fine: http://pastebin.com/7HynL8H7 > - "opkg upgrade" consistently segfaults > - "opkg install strace" consistently segfaults > > > Any suggestions on what I can do to narrow down the root cause of the > issue would be greatly appreciated. > > Thank you, > > Vladimir > -- 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.
