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Hyper-V ゲストに "kernel: Buffer I/O error on dev sr0" メッセージが表示されます。

Solution In Progress - Updated -

Issue

  • sr0 に関するエラーログが syslog に表示されます。

    Mar 15 04:31:58 localhost kernel: sr 2:0:0:0: [sr0] tag#186 unaligned transfer
    Mar 15 04:31:58 localhost kernel: I/O error, dev sr0, sector 8 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
    Mar 15 04:31:58 localhost kernel: I/O error, dev sr0, sector 8 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
    Mar 15 04:31:58 localhost kernel: Buffer I/O error on dev sr0, logical block 1, async page read
    Mar 15 04:31:58 localhost kernel: sr 0:0:0:2: [sr0] tag#133 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
    Mar 15 04:31:58 localhost kernel: sr 0:0:0:2: [sr0] tag#134 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s 
    Mar 15 04:31:58 localhost kernel: sr 2:0:0:0: [sr0] tag#187 unaligned transfer
    
  • CD/DVD ドライブにメディアがない場合でも、これらのログは出力されます。

Environment

  • Red Hat Enterprise Linux 9
  • Hyper-V

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