add launchpad bug reports without comments

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+Record/replay (icount rr) causes emulation hang or exit with error about missing events in log
+
+Test case description:
+
+Guest image is Linux, which just powers off after kernel boots (instead of proceeding to user-space /init or /sbin/init).
+Base cmdline:
+  qemu-system-x86_64 \
+    -nodefaults -nographic -machine pc,accel=tcg -m 2048 -cpu qemu64 \
+    -kernel bzImage -initrd rootfs -append 'nokaslr console=ttyS0 rdinit=/init_poweroff' \
+    -serial SERIAL_VALUE \
+    -rtc clock=vm,base=2000-01-01T00:00:00 \
+    -icount 1,sleep=off,rr=RR_VALUE,rrfile=icount_rr_capture.bin
+
+Test 1.
+When SERIAL_VALUE=none
+Running with RR_VALUE=record completes successfully.
+Running with RR_VALUE=replay doesn't completes. qemu process just eating ~100% cpu and memory usage doesn't grow after some moment. I don't see what happens because of problem no.2 (see below).
+
+Test 2.
+When SERIAL_VALUE=stdio
+Running with RR_VALUE=record completes successfully.
+Running with RR_VALUE=replay causes exit with error:
+"qemu-system-x86_64: Missing character write event in the replay log"
+
+Tests 3,4,5...
+SERIAL_VALUE=stdio. Playing with "-rtc" clock and base suboptions, "-icount" sleep suboptions produces non-repeatable results.
+In most cases running with RR_VALUE=record completes successfully (but may hang at very begining).
+Running with RR_VALUE=replay with combinations of removing "-rtc base=..." and "-icount sleep=..." goes better, but at different places of boot process it may either hang (as in test 1) or exit with error (as in test 2).
+When qemu "hangs", it may also happen differently: either it can be stopped by Ctrl-C, or have to be killed.
+
+
+Guest image uploaded here: https://drive.google.com/open?id=1SHG4HyBdcPutc5Au4pyhN8z9w52et51A
+
+QEMU built from master (commit 042938f46e1c477419d1931381fdadffaa49d45e) with:
+<SRC_ROOT>/configure --prefix=<INSTALL_ROOT> --target-list=x86_64-softmmu --enable-debug --disable-pie --enable-tcg --disable-tcg-interpreter --enable-virtfs --disable-docs --disable-guest-agent --disable-modules --disable-gnutls --disable-nettle --disable-gcrypt --disable-sdl --disable-curses --disable-vnc --disable-vnc-sasl --disable-vnc-jpeg --disable-vnc-png --disable-cocoa --disable-xen --disable-xen-pci-passthrough --disable-brlapi --disable-curl --disable-fdt --disable-bluez --disable-kvm --disable-hax --disable-hvf --disable-whpx --disable-rdma --disable-vde --disable-netmap --disable-cap-ng --disable-spice --disable-rbd --disable-libiscsi --disable-libnfs --disable-smartcard --disable-libusb --disable-live-block-migration --disable-usb-redir --disable-glusterfs --disable-tpm --disable-libssh2 --disable-numa --disable-libxml2 --disable-opengl --disable-virglrenderer --disable-qom-cast-debug --disable-tools --disable-vxhs --disable-crypto-afalg --disable-capstone --disable-replication --disable-xfsctl --disable-seccomp --disable-pvrdma --disable-libpmem
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