Setting the usb0 dr_mode to peripheral and disabling OTG in the .config definitely makes a big difference. I have a 3.18-rc2-bone1 currently running for almost 24 hours with this patch, much more than I've ever previously achieved with 3.18 or 3.17.
Op woensdag 5 november 2014 01:36:09 UTC+1 schreef Jens Peter Schroer: > > I followed up on the USB OTG hint as mentioned in my previous post. I > patched the dtb for the bbb so that the mini usb port runs as peripheral > and not as OTG. The patch was deployed to 7 systems so far and they all are > stable (no reboot) since then on any of the systems. The uptime is more > than 3 days now. > If interested, I can post more details. > > On Tuesday, November 4, 2014 3:01:53 PM UTC+1, Ives van der Flaas wrote: >> >> 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.
