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+device: 0.867
+architecture: 0.860
+peripherals: 0.850
+vnc: 0.837
+hypervisor: 0.789
+risc-v: 0.776
+VMM: 0.743
+ppc: 0.739
+PID: 0.730
+KVM: 0.675
+graphic: 0.673
+TCG: 0.671
+boot: 0.635
+user-level: 0.605
+performance: 0.602
+register: 0.595
+x86: 0.593
+debug: 0.585
+permissions: 0.573
+mistranslation: 0.572
+socket: 0.553
+arm: 0.538
+files: 0.535
+semantic: 0.527
+virtual: 0.519
+network: 0.477
+assembly: 0.401
+kernel: 0.370
+i386: 0.328
+
+qemu does not pass sector size from physical devices to virtual devices
+
+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!
+
+QEMU 0.12 is pretty much outdated ... can you still reproduce this issue with the latest version of QEMU, or can we close this bug nowadays?
+
+Hi,
+
+I can’t verify it for the logical block size right away, but 
+this bug still present for the physical block size in qemu-kvm 1:2.1+dfsg-1.
+
+I will try to verify this bug with testing soon
+
+> On 20. Mar 2017, at 23:57, Thomas Huth <email address hidden> wrote:
+> 
+> QEMU 0.12 is pretty much outdated ... can you still reproduce this issue
+> with the latest version of QEMU, or can we close this bug nowadays?
+> 
+> ** Changed in: qemu
+>       Status: New => Incomplete
+> 
+> -- 
+> You received this bug notification because you are subscribed to the bug
+> report.
+> https://bugs.launchpad.net/bugs/877498
+> 
+> Title:
+>  qemu does not pass sector size from physical devices to virtual
+>  devices
+> 
+> Status in QEMU:
+>  Incomplete
+> 
+> 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
+> 
+> To manage notifications about this bug go to:
+> https://bugs.launchpad.net/qemu/+bug/877498/+subscriptions
+> 
+
+AVE!
+  Philipp S. Tiesel / phils…
+-- 
+   {phils}--->---(<email address hidden>)--->---(http://phils.in-panik.de)----,
+      wenn w eine   aube ist dn      man au dran dre en                   |
+           o     Schr        an muss     hc         h   (Kurt Schwitters) |
+:wq!  <----(phone: +49-179-6737439)---<---(jabber: <email address hidden>)----'
+
+
+
+QEMU 2.1 is also not supported anymore. Please test with the latest upstream QEMU version (2.8 ... or the latest 2.9 release candidate) - or otherwise report the bug in the bug tracker of your distribution instead.
+
+[Expired for QEMU because there has been no activity for 60 days.]
+
+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.
+