Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Tue, Jan 22, 2008 at 06:35:27PM +0100, Walter Haidinger wrote: > > > and you are sure that nothing else but the drbd version changed? > > same kernel, same wlan drivers, those metal-wire-fruit baskets > > in the middle of the room did not start to dance, and your neighbor > > still has the same old microwave oven? > > Of course there are some other changes, but the only one noticable with regards to drbd is the major version change. The wireless link is run > by two Linksys WRT54GL routers with external antennas running a custom version of OpenWRT. Didn't change anything worth mentioning on the setup there. > > > well. > > what about a flood ping with big packets? > > # ping -w 20 -f -s 4100 peer-node > > or saturating your link using dd and netcat... > > drbd v7 was saturating the 11 Mbit/s link by syncing about 400GB which obviously took several days. No problem back then. > Traffic shaping using HTB keeps the link usuable even if drbd uses all available (remaining) bandwidth. > > The reason for upgrading to v8 in the first place was just the fact that > openSUSE 10.3 comes with drbd v8 and I tried to use the provided kernel and drbd module on east. > > > please do > > # ps -eo pid,state,wchan:30,cmd | grep -e D -e drbd > > 171 S drbd_nl_disconnect [cqueue/1] > 7735 S - [drbd0_worker] > 13018 D drbd_disconnect [drbd0_receiver] > 21135 S pipe_wait grep drbd to even start guessing about anything, what I'd need is /proc/drbd (not only the first line), and the above output, of both nodes, when they are in this "hanging" state. also, maybe you can trigger a sysrq shoW-blocked-tasks (or showTasks, if your kernel does not have the former), and see if you can figure out where exactly the drbd_disconnect sleeps, so we know what exactly it is waiting for. -- : Lars Ellenberg http://www.linbit.com : : DRBD/HA support and consulting sales at linbit.com : : LINBIT Information Technologies GmbH Tel +43-1-8178292-0 : : Vivenotgasse 48, A-1120 Vienna/Europe Fax +43-1-8178292-82 : __ please use the "List-Reply" function of your email client.