CAM error in a VM

[Vick Khera]

I saw these errors earlier from a FreeBSD 10.2 server running inside
KVM on a linux (debian) host. What could possibly cause such hardware
type errors within a VM? The KVM host is not very loaded at all.

+(da1:vtscsi0:0:0:1): WRITE(10). CDB: 2a 00 05 3b 9d 79 00 00 0a 00
+(da1:vtscsi0:0:0:1): CAM status: Command timeout
+(da1:vtscsi0:0:0:1): Retrying command
+(da1:vtscsi0:0:0:1): WRITE(10). CDB: 2a 00 05 38 d0 eb 00 01 00 00
+(da1:vtscsi0:0:0:1): CAM status: Command timeout
+(da1:vtscsi0:0:0:1): Retrying command
+(da1:vtscsi0:0:0:1): WRITE(10). CDB: 2a 00 05 36 b4 a5 00 01 00 00
+(da1:vtscsi0:0:0:1): CAM status: Command timeout
+(da1:vtscsi0:0:0:1): Retrying command
+(da1:vtscsi0:0:0:1): WRITE(10). CDB: 2a 00 05 3a 74 bc 00 01 00 00
+(da1:vtscsi0:0:0:1): CAM status: Command timeout
+(da1:vtscsi0:0:0:1): Retrying command
+(da1:vtscsi0:0:0:1): WRITE(10). CDB: 2a 00 05 3a 76 bc 00 01 00 00
+(da1:vtscsi0:0:0:1): CAM status: Command timeout
+(da1:vtscsi0:0:0:1): Retrying command
+(da1:vtscsi0:0:0:1): WRITE(10). CDB: 2a 00 05 3a 78 bc 00 01 00 00
+(da1:vtscsi0:0:0:1): CAM status: Command timeout
+(da1:vtscsi0:0:0:1): Retrying command
+(da1:vtscsi0:0:0:1): WRITE(10). CDB: 2a 00 05 3a 7a bc 00 01 00 00
+(da1:vtscsi0:0:0:1): CAM status: Command timeout
+(da1:vtscsi0:0:0:1): Retrying command
+(da1:vtscsi0:0:0:1): WRITE(10). CDB: 2a 00 05 3a 75 bc 00 01 00 00
+(da1:vtscsi0:0:0:1): CAM status: Command timeout
+(da1:vtscsi0:0:0:1): Retrying command
+(da1:vtscsi0:0:0:1): WRITE(10). CDB: 2a 00 05 3a 77 bc 00 01 00 00
+(da1:vtscsi0:0:0:1): CAM status: Command timeout
+(da1:vtscsi0:0:0:1): Retrying command
+(da1:vtscsi0:0:0:1): WRITE(10). CDB: 2a 00 05 3a 79 bc 00 01 00 00
+(da1:vtscsi0:0:0:1): CAM status: Command timeout
+(da1:vtscsi0:0:0:1): Retrying command
+(da1:vtscsi0:0:0:1): WRITE(10). CDB: 2a 00 05 3a 7b bc 00 01 00 00
+(da1:vtscsi0:0:0:1): CAM status: Command timeout
+(da1:vtscsi0:0:0:1): Retrying command