Comment 1 for bug 1722884

Here is a backtrace of the PS2 reset event:

#0 ps2_write_mouse (opaque=0x55804518ae30, val=255) at /home/geoff/Projects/qemu/qemu/hw/input/ps2.c:1033
#1 0x00005580420e1dd9 in kbd_write_data (opaque=0x558045147aa0, addr=0, val=255, size=1) at /home/geoff/Projects/qemu/qemu/hw/input/pckbd.c:357
#2 0x0000558041e7e64f in memory_region_write_accessor (mr=0x558045147ae0, addr=0, value=0x7f9ec016f478, size=1, shift=0, mask=255, attrs=...)
    at /home/geoff/Projects/qemu/qemu/memory.c:560
#3 0x0000558041e7e867 in access_with_adjusted_size (addr=0, value=0x7f9ec016f478, size=1, access_size_min=1, access_size_max=1,
    access_fn=0x558041e7e565 <memory_region_write_accessor>, mr=0x558045147ae0, attrs=...) at /home/geoff/Projects/qemu/qemu/memory.c:627
#4 0x0000558041e814e9 in memory_region_dispatch_write (mr=0x558045147ae0, addr=0, data=255, size=1, attrs=...)
    at /home/geoff/Projects/qemu/qemu/memory.c:1503
#5 0x0000558041e31302 in flatview_write_continue (fv=0x7f9e90010c10, addr=96, attrs=..., buf=0x7f9eee9de000 "\377\006", len=1, addr1=0, l=1,
    mr=0x558045147ae0) at /home/geoff/Projects/qemu/qemu/exec.c:2900
#6 0x0000558041e31450 in flatview_write (fv=0x7f9e90010c10, addr=96, attrs=..., buf=0x7f9eee9de000 "\377\006", len=1)
    at /home/geoff/Projects/qemu/qemu/exec.c:2945
#7 0x0000558041e31827 in flatview_rw (fv=0x7f9e90010c10, addr=96, attrs=..., buf=0x7f9eee9de000 "\377\006", len=1, is_write=true)
    at /home/geoff/Projects/qemu/qemu/exec.c:3054
#8 0x0000558041e318df in address_space_rw (as=0x558042a4c940 <address_space_io>, addr=96, attrs=..., buf=0x7f9eee9de000 "\377\006", len=1, is_write=true)
    at /home/geoff/Projects/qemu/qemu/exec.c:3064
#9 0x0000558041e9617e in kvm_handle_io (port=96, attrs=..., data=0x7f9eee9de000, direction=1, size=1, count=1)
    at /home/geoff/Projects/qemu/qemu/accel/kvm/kvm-all.c:1698
#10 0x0000558041e968c2 in kvm_cpu_exec (cpu=0x5580444f4650) at /home/geoff/Projects/qemu/qemu/accel/kvm/kvm-all.c:1938
#11 0x0000558041e670d9 in qemu_kvm_cpu_thread_fn (arg=0x5580444f4650) at /home/geoff/Projects/qemu/qemu/cpus.c:1128
#12 0x00007f9ed49c5494 in start_thread (arg=0x7f9ec0172700) at pthread_create.c:333
#13 0x00007f9ed4707aff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97