On Tue, May 10, 2011 at 7:20 AM, Yehuda Sadeh Weinraub <yehudasa@xxxxxxxxx> wrote: > On Tue, May 10, 2011 at 7:04 AM, Stefan Majer <stefan.majer@xxxxxxxxx> wrote: >> Hi, >> >> im running 4 nodes with ceph on top of btrfs with a dualport Intel >> X520 10Gb Ethernet Card with the latest 3.3.9 ixgbe driver. >> during benchmarks i get the following stack. >> I can easily reproduce this by simply running rados bench from a fast >> machine using this 4 nodes as ceph cluster. >> We saw this with stock ixgbe driver from 2.6.38.6 and with the latest >> 3.3.9 ixgbe. >> This kernel is tainted because we use fusion-io iodrives as journal >> devices for btrfs. >> >> Any hints to nail this down are welcome. >> >> Greetings Stefan Majer >> >> May 10 15:26:40 os02 kernel: [ 3652.485219] cosd: page allocation >> failure. order:2, mode:0x4020 > > It looks like the machine running the cosd is crashing, is that the case? > Are you running both ceph kernel module on the same machine by any that should be "both the osd and the kernel module" > chance? If not, it can be some other fs bug (e.g., the underlying > btrfs). Also, the stack here is quite deep, there's a chance for a > stack overflow. > > Thanks, > Yehuda > -- To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
