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Date:      Mon, 11 Jul 2016 09:23:55 -0400
From:      Vick Khera <vivek@khera.org>
To:        questions@freebsd.org
Subject:   CAM error in a VM
Message-ID:  <CALd%2BdcfCp-__s2D4Xkk6n6t2cfC6dsZpo%2B0NmzT==egJp5pg1Q@mail.gmail.com>

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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



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