Hi Arno, On Friday 17 January 2014 11:16:02 Arno Euteneuer wrote: > [...] > A while ago we noticed that commands like e.g. lsmod would sometimes crash > on the target with an Illegal Instruction or segfault, just to work > correctly again in the next second. Also we sometimes got kicked out of our > ssh session on the target for no obvious reason. This happened very seldom > first. However, now after investigating into it, we are able to cause these > faults with a simple shell script. The script executes a few - more or less > arbitrarily selected - commands (du, lsmod, lusb, cp /boot/uImage /tmp/) in > an endless loop and collects stderr outputs in a logfile. We usually start > like 10 instances of the script in parallel (with &) and after a few > minutes we find several reports about Illegal Instructions and/or > Segmentation faults in the logfile.
Is there a correlation between the memory size the kernel gets reported and the used memory devices soldered onto the board? ;) > [...] Regards, Juergen -- Pengutronix e.K. | Juergen Beisert | Linux Solutions for Science and Industry | http://www.pengutronix.de/ | -- ptxdist mailing list [email protected]
