I have a system running the Debian 3.16.3-2 AMD64 kernel for the Xen Dom0 and the DomUs. The Dom0 has a pair of 500G SATA disks in a BTRFS RAID-1 array. The RAID-1 array has some subvols exported by NFS as well as a subvol for the disk images for the DomUs - I am not using NoCOW as performance is fine without it and I like having checksums on everything. I have started having some problems with a mail server that is running in a DomU. The mail server has 32bit user-space because it was copied from a 32bit system and I had no reason to upgrade it to 64bit, but it's running a 64bit kernel so I don't think that 32bit user-space is related to my problem. # find . -name "*546" ./1412233213.M638209P10546 # ls -l ./1412233213.M638209P10546 ls: cannot access ./1412233213.M638209P10546: No such file or directory Above is the problem, find says that the file in question exists but ls doesn't think so, the file in question is part of a Maildir spool that's NFS mounted. This problem persisted across a reboot of the DomU, so it's a problem with the Dom0 (the NFS server). The dmesg output on the Dom0 doesn't appear to have anything relevant, and a find command doesn't find the file. I don't know if this is a NFS problem or a BTRFS problem. I haven't rebooted the Dom0 yet because a remote reboot of a server running a kernel from Debian/Unstable is something I try to avoid. Any suggestions? -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/ -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
