Have you had *any* resets since the upgrade to the new u-boot version? I've also been suspecting u-boot, hence my "Meaning that I'm also running an old u-boot. " in the last post.
Op dinsdag 4 november 2014 00:18:43 UTC+1 schreef david turvene: > > On Saturday, November 1, 2014 3:24:33 PM UTC-4, david turvene wrote: >> >> The system runs fine when I'm not messing around with the plugs, changing >> the wifi properties, or sniffing. When I do any of these the system >> occasionally silently reboots - I've been able to test up to 20 sniffing >> sessions before it reboots, sometimes it will reboot immediately when I >> start an monitor session. >> * I run the BBB headless, generally using SSH xterm. >> * The silent reboot happens with NO indication. NOTHING. The uart >> console just shows a system restart. >> * I triggered a watchdog NMI (it takes 22 seconds) and it showed a lot of >> diagnostic info - so that's not it. >> > > Further research - similar behavior was reported last year. Lot's of red > herrings (USB control appeared to be the most suspicious because that's my > main interface but also long threads blaming the power management unit.) > Someone found that another clock source was needed for low-power state and > moved the new code into u-boot. I was running with a local build from > RCN's git repo described at: > > > https://eewiki.net/display/linuxonarm/BeagleBone+Black#BeagleBoneBlack-Bootloader:U-Boot > > and 2014.7 baseline. I noticed it is now at 2014.10 so I rebuilt and > installed on target. The system is much more stable after testing for a > lot longer than I could before. And I'm pretty sure the clocking/power is > the root cause of the silent reboots so I'm checking how the clock change, > to the RTC32K clock, works. > > Also, since I'm running from emmc, I used am335x_boneblack_defconfig to > build u-boot. The only difference is it sets EMMC_BOOT but a quick grep > shows it changes logic in a couple places. > > Anyway, it's a start... > > -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
