This is my first time for submitting an email. So please let me know if
I should do something differently, include additional information, etc.
I am getting IDE disk read and write errors. I have not been able to
associate these errors with any particular activity on the guest or the
host except that it seems like the errors are more likely to occur after
I have been communicating over sockets between the guest and the host. I
was running with both a bridged adapter and a NAT adapter. It seems to
be more stable (i.e. will run longer) after removing the NAT adapter. I
don't know if the networking has anything to do with the problem or is
just a coincidence. However, after seeing the errors on the guest, the
host will also exhibit errors such as "Insufficient resources to
complete the request" when trying to copy files or an inability to start
new applications. I usually need to restart my host machine in order to
clear these problems.
The errors occur somewhat randomly. I am usually able to run for 1 to as
many as 6 hours before experiencing a problem. Occasionally I can run
for a few hours and shut down without a problem. Once I get an error, it
will repeat continuously until I power off the VM. I cannot do a normal
shutdown.
I am seeing "PIIX3 ATA: LUN#0: disk read error" and "PIIX3 ATA: LUN#0:
disk write error" messages in the VirtualBox logs. I also see "Failed
opcode was: unknown", "hda: read_int: status = 0x41 {Drive Ready Error}
error = 0x10 {SectorIdNotFound}", and "EXT3-fs error in
start_transaction: Journal has aborted" errors displayed in the VM
window.
Upon restarting the VM, I do a file system integrity check. It will
sometimes pass without a problem. However it often finds various errors
including invalid attribute and inode reference counts, unattached
inodes, block bitmap differences, free blocks count wrong, and free
inodes count wrong. So far I have selected to fix these errors and the
VM will then boot successfully.
I have run chkdsk on the host several times (before and after fixing the
vdi errors on rebooting the VM) and have not had any errors reported.
My host configuration is:
Windows XP Service Pack 2
Intel Core2 Duo CPU - T9600 at 2.80 GHz
2 GB of RAM at 782 MHz
Physical Address Extension
ST9250410ASG Hard Drive (250 GB, SATA drive)
Intel ICH8M-E/ICH9M-E SATA RAID Controller
Dell Wireless 1510 Wireless-N WLAN Mini-Card (used for bridged adapter)
Additionally, I am running PGPDesktop disk encryption on the SATA hard
drive. I am also running the Cisco VPN Client in my host machine, but I
am not connected to the VPN when communicating between the guest and
host.
VirtualBox and Virtual Machine configuration:
VirtualBox Version 3.1.2 r56127
CentOs Version 4.3 OS, Kernel version xxxx
512 MB Base Memory
1 processor
IO APIC Disabled
VT-x Enabled for VM and in the host BIOS
Nested Paging Disabled
IDE Primary Master: CentOS.vdi
IDE Secondary Master (CD/DVD): Empty
If anyone has a clue as to how to diagnose or fix this problem, it would
be greatly appreciated.
Phil
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