Breakpoint 1, dri3_update_num_back (draw=draw@entry=0x1393438) at loader_dri3_helper.c:73
(gdb) bt
#0  dri3_update_num_back (draw=draw@entry=0x1393438) at loader_dri3_helper.c:73
#1  0x00007fdd2811762c in dri3_update_num_back (draw=0x1393438) at loader_dri3_helper.c:237
#2  dri3_handle_present_event (draw=draw@entry=0x1393438, ge=0x152a7b0) at loader_dri3_helper.c:240
#3  0x00007fdd2811778b in dri3_flush_present_events (draw=draw@entry=0x1393438) at loader_dri3_helper.c:619
#4  0x00007fdd28118048 in dri3_flush_present_events (draw=0x1393438) at loader_dri3_helper.c:613
#5  loader_dri3_swap_buffers_msc (draw=0x1393438, target_msc=0, divisor=0, remainder=0, flush_flags=<optimized out>, 
    force_copy=<optimized out>) at loader_dri3_helper.c:665
#6  0x000000000046bbb8 in Test::Flip(float, float) ()
#7  0x000000000041836c in TestFramework::OnWindowDraw() ()
#8  0x0000000000499362 in AppWindowSys::MainLoop() ()
#9  0x000000000040b45f in main ()
(gdb) info locals
No locals.
(gdb) up
#1  0x00007fdd2811762c in dri3_update_num_back (draw=0x1393438) at loader_dri3_helper.c:237
237	in loader_dri3_helper.c
(gdb) info locals
No locals.
(gdb) up
#2  dri3_handle_present_event (draw=draw@entry=0x1393438, ge=0x152a7b0) at loader_dri3_helper.c:240
240	in loader_dri3_helper.c
(gdb) info locals
ce = 0x152a7b0
(gdb) print *ce
$1 = {response_type = 35 '#', extension = 147 '\223', sequence = 253, length = 2, event_type = 1, kind = 0 '\000', mode = 0 '\000', 
  event = 52428808, window = 52428802, serial = 198, ust = 1804686767, full_sequence = 253, msc = 107811}
(gdb) up
#3  0x00007fdd2811778b in dri3_flush_present_events (draw=draw@entry=0x1393438) at loader_dri3_helper.c:619
619	in loader_dri3_helper.c
(gdb) info locals
ge = <optimized out>
ev = <optimized out>
(gdb) up
#4  0x00007fdd28118048 in dri3_flush_present_events (draw=0x1393438) at loader_dri3_helper.c:613
613	in loader_dri3_helper.c
(gdb) info locals
No locals.
(gdb) up
#5  loader_dri3_swap_buffers_msc (draw=0x1393438, target_msc=0, divisor=0, remainder=0, flush_flags=<optimized out>, 
    force_copy=<optimized out>) at loader_dri3_helper.c:665
665	in loader_dri3_helper.c
(gdb) info locals
back = 0x1393cb0
dri_context = 0x1362ff0
ret = 0
options = 0
swap_interval = 0
(gdb) print *back
$2 = {image = 0x1393d10, linear_buffer = 0x0, pixmap = 52428809, sync_fence = 52428810, shm_fence = 0x7fdd296aa000, busy = false, 
  own_pixmap = true, size = 0, pitch = 7680, cpp = 4, flags = 0, width = 1920, height = 1080, last_swap = 198, 
  buffer_type = loader_dri3_buffer_back}
(gdb) print *dri_context
$3 = {driverPrivate = 0x7fdd29636038, loaderPrivate = 0x1238920, driDrawablePriv = 0x1393530, driReadablePriv = 0x1393530, 
  driScreenPriv = 0x123dce0, dri2 = {draw_stamp = 397, read_stamp = 397}}