Can't open profiles created with MESA_VK_TRACE_PER_SUBMIT

[stolk]

Captured with:

$ MESA_VK_TRACE=rgp MESA_VK_TRACE_PER_SUBMIT=1 ./testgib

Output:

radv: Thread trace support is enabled (initial buffer size: 32 MiB, instruction timing: enabled, cache counters: enabled, queue events: enabled).
...
RGP capture saved to '/tmp/testgib_2026.07.03_13.35.16_submit0.rgp'
...
RGP capture saved to '/tmp/testgib_2026.07.03_13.35.16_submit1.rgp'
radv: Failed to capture RGP for this submit because the buffer is too small and auto-resizing is disabled. See RADV_THREAD_TRACE_BUFFER_SIZE/RADV_CACHE_COUNTERS_BUFFER_SIZE for increasing the size.
radv: Failed to capture RGP for this submit because the buffer is too small and auto-resizing is disabled. See RADV_THREAD_TRACE_BUFFER_SIZE/RADV_CACHE_COUNTERS_BUFFER_SIZE for increasing the size.
RGP capture saved to '/tmp/testgib_2026.07.03_13.35.16_submit4.rgp'
RGP capture saved to '/tmp/testgib_2026.07.03_13.35.16_submit5.rgp'
RGP capture saved to '/tmp/testgib_2026.07.03_13.35.16_submit6.rgp'
...
RGP capture saved to '/tmp/testgib_2026.07.03_13.35.18_submit7.rgp'
...
RGP capture saved to '/tmp/testgib_2026.07.03_13.35.18_submit8.rgp'
RGP capture saved to '/tmp/testgib_2026.07.03_13.35.18_submit9.rgp'

None of these rgp files can be opened by Radeon GPU Profiler:

$ inxi -G
Graphics:
  Device-1: Advanced Micro Devices [AMD/ATI] Navi 33 [Radeon RX 7600/7600
    XT/7600M XT/7600S/7700S / PRO W7600] driver: amdgpu v: kernel
  Display: wayland server: X.Org v: 24.1.10 with: Xwayland v: 24.1.10
    compositor: gnome-shell v: 50.1 driver: X: loaded: amdgpu
    unloaded: fbdev,modesetting,radeon,vesa dri: radeonsi gpu: amdgpu
    resolution: 3840x2160~60Hz
  API: EGL v: 1.5 drivers: radeonsi,swrast
    platforms: gbm,wayland,x11,surfaceless,device
  API: OpenGL v: 4.6 vendor: amd mesa v: 26.2.0-devel renderer: AMD Radeon
    RX 7600 (radeonsi navi33 ACO DRM 3.64 7.0.0-27-generic)
  API: Vulkan v: 1.4.341 drivers: radv,llvmpipe surfaces: N/A
  Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo gpu: corectrl,
    gputop, intel_gpu_top, lsgpu, lact, radeontop wl: wdisplays x11: xdriinfo,
    xdpyinfo, xprop, xrandr