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[Qemu-devel] [Bug 877498] Re: qemu does not pass sector size from physic
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From: |
Paolo Bonzini |
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Subject: |
[Qemu-devel] [Bug 877498] Re: qemu does not pass sector size from physical devices to virtual devices |
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Date: |
Sun, 21 May 2017 13:10:32 -0000 |
Recent QEMU is able to do read-modify-write operations when using 512
byte logical sectors in the VM and 4K logical sectors in the host.
** Changed in: qemu
Status: Expired => Fix Released
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https://bugs.launchpad.net/bugs/877498
Title:
qemu does not pass sector size from physical devices to virtual
devices
Status in QEMU:
Fix Released
Bug description:
When passing a physical disk (i.e. a multipathed fcal volume in my
case) with a 4k sector size as raw image to qemu (-drive
file=/dev/mapper/hartebeest-sys,if=none,id=drive-virtio-
disk0,boot=on,format=raw), the resulting virtual device has a sector
size of 512b, rendering the partition table unusable.
Versions used: QEMU 0.12.5 (qemu-kvm-0.12.5) from debian unstable
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