add launchpad bug reports without comments

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+Unstable Win10 guest with qemu 3.1 + huge pages + hv_stimer
+
+Host:
+Gentoo linux x86_64, kernel 4.20.1
+Qemu 3.1.0 
+CPU: Intel i7 6850K
+Chipset: X99
+
+Guest:
+Windows 10 Pro 64bit (1809)
+Machine type: pc-q35_3.1
+Hyper-V enlightenments: hv_stimer,hv_reenlightenment,hv_frequencies,hv_vapic,hv_reset,hv_synic,hv_runtime,hv_vpindex,hv_time,hv_relaxed,hv_spinlocks=0x1fff
+Memory: 16GB backed by 2MB huge pages
+
+Issue:
+Once guest is started, log gets flooded with:
+
+qemu-system-x86_64: vhost_region_add_section: Overlapping but not coherent sections at 103000
+
+or 
+
+qemu-system-x86_64: vhost_region_add_section:Section rounded to 0 prior to previous 1f000
+
+(line endings change)
+
+and as time goes guest loses network access (virtio-net-pci) and general performance diminishes to extent of freezing applications.
+
+Observations:
+1) problem disappears when hv_stimer is removed
+2) problem disappears when memory backing with huge pages is disabled
+3) problem disappears when machine type is downgraded to pc-q35_3.0
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