> >> I had suspected the kill_bdev patch, as it's the only thing of any > >> significance that has changed recently related to nbd shutdown, but it > > > > As a note: this does not happen during shutdown. Well, maybe it does but > > that was not invoked at the time of the crash. > > The test was: > > mount /dev/nbd0 /mnt -o noatime,discard,barrier=1 (or without -o) > > and then on that mountpoint > > iozone3 [...] > So maybe iozone is doing something odd here? Can you make this happen > without that?
Well iozone3 works on files, not directly on the device so from the nbd point of view nothings strange happens. I did see it happen too with a script I wrote that did all kinds of things in parallel: iso copy, tar of kernel sources. Unfortunately I lost that script. > >> As for what is causing your client to stop in the first place, I'm not > >> sure. How do you have the FS mounted? Are you testing discard, i.e., > >> you have the option enabled in the nbd-server? > > > > As I wrote above. > > But also with just plain mount /dev/nbd0 /mnt. This is always with a > > filesystem build with mkfs.ext4 -j. Furthermore, this is with the stock > > You're saying _any_ mount of ext4 over nbd does this sudden shutdown, > with 3.2+ kernel? Surely that's not the case? Yes, it does unfortunately. Folkert van Heusden -- MultiTail er et flexible tool for å kontrolere Logfiles og commandoer. Med filtrer, farger, sammenføringer, forskeliger ansikter etc. http://www.vanheusden.com/multitail/ ---------------------------------------------------------------------- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar _______________________________________________ Nbd-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/nbd-general
