Gary Thomas wrote: > On 11/02/2009 08:35 PM, Bill Gatliff wrote: >> Guys: >> >> >> Can someone give me any ideas as to why my Beagleboard-like platform >> would spontaneously restart after precisely four minutes of operation? >> No OOPS, no nothing. This is with 2.6.32-rc5. >> > > BeagleBoard like? More details are probably required for much help. > > How do you power it? My BeagleBoard is powered via the OTG. I've > seen it reset if I hang too much on the USB host port (exceed the > meager power budget) It's a clone of a BeagleBoard, but with more and friendlier I/O. CUS package, and they use the TPS65023RSB power supply manager. I'm not ready to bury anyone in more details yet, since it's a client's hardware and I feel like I'm imposing already... :) When I boot it to my kernel, which is based on 2.6.32-rc5, it comes up fine and then for no apparent reason after four minutes goes through a reset again. I know it's approximately the same each time, because I have uptime running in a loop so that I can conveniently see when it dies. The very same tree boots and runs properly on a true BeagleBoard rev C. What's even more wierd is that even when sitting at the u-boot prompt before launching any kernel at all, the board does the same thing--- spontaneous reset after about four minutes. The client provided me the u-boot image, and it says it's a modified one from the OMAP3EVM--- it even provides that machine id. The above behavior makes me suspect hardware, but read on before you agree. Finally, the client provided me a kernel of unknown origin (it says it's a 2.6.29-rc2) that appears to run fine---- no hiccup at 4 minutes. Of course, that kernel doesn't have the features they need. I'm going over it now to see if there's a magic bit somewhere that mine is missing, but I'm at a bit of a loss to explain what I'm seeing right now. Anyone have any ideas? Bizzare. (BTW, nice to hear from you again, Gary! It's been a while.) b.g. -- Bill Gatliff bgat@xxxxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
