On Tue, Jan 20, 2009 at 10:32:27AM -0500, Trond Myklebust wrote: > On Tue, 2009-01-20 at 16:03 +0100, Kasparek Tomas wrote: > > On Sun, Jan 18, 2009 at 02:08:35PM +0100, Kasparek Tomas wrote: > > > > > > The attached 2 patches have been tested using a server that was rigged > > > > > > not to ever close the socket. They appear to work fine on my setup, > > > > > > without the hang that you reported earlier. > > > ... > > > It seems that machines with this new kernel (tried on 10 other machines > > > and the original client) may after few days get into state where they > > > generate huge amounts (10000-100000pkt/s) of packets on another server they > > > use (Linux 2.6.26.62, but the same behaviour with other kernels I tried - > > > 2.6.24.7, 2.6.22.19, 2.6.27.10). It seems packets are quiet small as the > > > flow on server is about 5-10MB/s. (probably) Each packet generates an answer. > > > With this flow it is hard to get more info and the server is production > > > one, so for now I only know it goes from these clients and end on tcp port > > > 2049 on that server. It kills just this server, communication with the > > > previously problematic (FreeBSD machines) is fine now. > > > > patches. Do not have more info about what's there on network, the only new > > thing I can add is that the client is dead not reacting even on keyborad or > > anything else. Trond, would you have and idea what to try now or what other > > A binary wireshark dump of the traffic between one such client and the > server would help. I tried to get some data several times, but the client is dead and the server is overloaded so much, that I'm unable to get anything reasonable. I did tried to insert another mechine in front of the client as a bridge, but the traffic overloaded it the same way as the server. I will try to figure out how to get some traffic dump, but have no other idea for now. Bye -- Tomas Kasparek, PhD student E-mail: kasparek@xxxxxxxxxxxx CVT FIT VUT Brno, L127 Web: http://www.fit.vutbr.cz/~kasparek Bozetechova 1, 612 66 Fax: +420 54114-1270 Brno, Czech Republic Phone: +420 54114-1220 jabber: tomas.kasparek@xxxxxxxxx GPG: 2F1E 1AAF FD3B CFA3 1537 63BD DCBE 18FF A035 53BC -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
