I'm running 5 VMs on my XenServer 5.5 host:
- 2x CentOS 5.5
- 3x Windows-based (SBS 2008, Windows 2003, Windows XP)
Both Linux servers crash at random on a monthly or so basis (not at the same time either). A reboot fixes the issue, however after checking the dmesg log, I found:
device-mapper: uevent: version 1.0.3
device-mapper: ioctl: 4.11.5-ioctl (2007-12-12) initialised: dm-devel@redhat.com
device-mapper: dm-raid45: initialized v0.2594l
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting. Commit interval 5 seconds
EXT3-fs: xvda1: orphan cleanup on readonly fs
ext3_orphan_cleanup: deleting unreferenced inode 3932161
ext3_orphan_cleanup: deleting unreferenced inode 2762928
ext3_orphan_cleanup: deleting unreferenced inode 2763561
<snip>
ext3_orphan_cleanup: deleting unreferenced inode 2756567
ext3_orphan_cleanup: deleting unreferenced inode 4162628
ext3_orphan_cleanup: deleting unreferenced inode 2767840
EXT3-fs: xvda1: 80 orphan inodes deleted
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
I've been advised on another forum it's a hardware issue, but the Windows VMs never crash and I've never encountered a problem with them either.
Does anyone know what this is and what could be causing it? Additionally can anyone help determine the cause of the crashing? Thanks in advance.