Hello, On Friday 09 September 2011 19:54:47 Alexey Loukianov wrote: > Good day to all, > > As I already had posted to the list, I'm experimenting with OpenWRT > installation on my fresh-new DIR-615 rev. E4 box. Looks like that current > trunk it is pretty unstable on it - I've got unexpected reboots or hangs > at random intervals, varying from several minutes to the several hours. I > suspect that the reboots are caused by kernel panic followed by hw reset > from watchdog, but I hadn't been able to catch it with remote syslog. > Every time it looks like everything is fine and then - kaboom - ssh > connection get's dropped due to no response from the peer and I find the > box being hanged or in process of rebooting itself. > > So, my questions are: > a) Are there any users of DIR-615 E4 on the list experiencing similar > troubles? b) What should I do to try to catch the kmesg at the hang/reboot > moment? Should I solder in serial console connector and monitor for > messages through it? Or maybe there's some other way like remote kernel > debug utilities or something of that kind?
You should be able to use the crashlog feature, which is a small ring-buffer in RAM holding kernel panics and such. Provided that the bootloader does not erase the contents of the RAM between two reboots, you can get this output by using: mount -t debugs /sys/kernel/debug cat /sys/kernel/debug/crashlog this should tell you what was the last cause of panic. > > Most essential is the (a) part of the question as the problem I face might > be related to the possible damage the box might got while I've been > soldering USB connector and several SMD resistors to its PCB. ATM I'm > thinking about buying another DIR-615 E4 box just to check how does the > "virgin vanilla" box behave under OpenWRT. Could be a good idea to make sure the hardware is not faulty. I doubt so, but maybe the board with USB has a different power supply circuitry to handle overcurrents and the powering of the USB devices? -- Florian _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
