On 13/03/13 08:44, Koen Kooi wrote: > > Op 12 mrt. 2013, om 16:35 heeft Mark Jackson <mpfj-list@xxxxxxxxxx> het volgende geschreven: > >> I'm just fighting an issue with ethernet on our custom AM335x board:- >> >> # uname -a >> Linux nanobone 3.9.0-rc2-00113-gd60f039 #139 Tue Mar 12 15:14:01 GMT 2013 armv7l GNU/Linux >> >> Every now and then, the whole unit slows to a crawl. The only indication of any problem is:- >> >> (a) the serial tty port becomes much less responsive >> (b) normal ping times jump from 1ms to >10sec (sometimes >20sec !!) >> (c) the ethernet interrupt count rockets (see below) > > You probably have PG2.x silicon, have a look at this patch: https://github.com/beagleboard/kernel/blob/3.8/patches/net/0003-cpsw-Fix-interrupt-storm-among-other-things.patch No, it's 1.0 ... [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 3.9.0-rc2-00113-gd60f039-dirty (mpfj@mpfj-nanobone) (gcc version 4.5.4 (Buildroot 2012.11) ) #141 Wed Mar 13 09:14:03 GMT 2013 [ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache [ 0.000000] Machine: Generic AM33XX (Flattened Device Tree), model: Newflow AM335x NanoBone [ 0.000000] Memory policy: ECC disabled, Data cache writeback [ 0.000000] CPU: All CPU(s) started in SVC mode. [ 0.000000] AM335X ES1.0 (neon ) The patch certainly didn't fix things (and possibly made things worse i.e. my nfs root kept dropping off even more). > I saw some patches going into net-next today that might address this in a different way, but I haven't tried 3.9rc on an am335x yet. I might track those down and test them. Cheers Mark J. -- 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
