[Regression][Bisected] gallium/egl drm crashes Weston's egl backend, other display servers on simpledrm

Compiling Mesa with meson setup -Ddebug=false -Doptimization=s --prefix=INSTALLDIR -Dgles1=enabled -Dgles2=enabled -Dplatforms=x11,wayland -Dosmesa=true -Dgallium-xa=enabled -Dgbm=enabled -Dshared-glapi=enabled -Dllvm=enabled -Dshared-llvm=enabled -Dvulkan-drivers=intel,intel_hasvk,amd,swrast,virtio,nouveau -Dllvm=enabled build -Dglvnd=enabled

These are the enabled Gallim drivers: "r300 r600 radeonsi nouveau virgl svga llvmpipe softpipe iris crocus i915 zink"

I think it is 03e88c06

I do have a stack trace though.

If I use Weston's Pixman backend, I can avoid the crash

#0  0x00007f495e2a515c in dri2_allocate_textures (ctx=0x559ff7ec1530, 
    drawable=0x559ff7ea5250, statts=0x559ffa338d68, statts_count=1)
    at ../src/gallium/frontends/dri/dri2.c:528
        buf = 0x559ff7ea53a0
        texture = <optimized out>
        screen = 0x559ff7e9b520
        templ = {{__cl_space = '\000' <repeats 63 times>, reference = {
              count = 0}}, width0 = 0, height0 = 0, depth0 = 1, 
          array_size = 1, format = PIPE_FORMAT_NONE, target = PIPE_TEXTURE_2D, 
          last_level = 0 '\000', nr_samples = 0 '\000', 
          nr_storage_samples = 0 '\000', nr_sparse_levels = 0 '\000', 
          compression_rate = 0, usage = PIPE_USAGE_DEFAULT, bind = 0, 
          flags = 0, next = 0x0, screen = 0x0}
        alloc_depthstencil = false
        i = <optimized out>
        j = <optimized out>
        bind = 825504309
        image = 0x7f496095f9c0 <image_loader_extension>
        images = {image_mask = 1, back = 0x0, front = 0x282030203a737475}
        buffers = 0x0
        whandle = {type = 1852534357, layer = 762214255, plane = 673196337, 
          handle = 1835627120, stride = 695824993, array_stride = 1393101066, 
          image_stride = 1646284104, offset = 1701209717, 
--Type <RET> for more, q to quit, c to continue without paging--c
          format = 7950296401751078005, modifier = 3184376364001095275, {
            com_obj = 0x6666393535783020, name = 0x6666393535783020}, 
          size = 2967984731455632225}
        num_buffers = 1
        __PRETTY_FUNCTION__ = "dri2_allocate_textures"
#1  0x00007f495e2a0af2 in dri_st_framebuffer_validate (st=<optimized out>, 
    pdrawable=0x559ff7ea5250, statts=0x559ffa338d68, count=1, 
    out=0x7ffda312bea0, resolve=0x7ffda312be68)
    at ../src/gallium/frontends/dri/dri_drawable.c:79
        ctx = 0x559ff7ec1530
        drawable = 0x559ff7ea5250
        screen = 0x559ff7e9b520
        statt_mask = 2
        new_mask = 2
        new_stamp = <optimized out>
        i = <optimized out>
        lastStamp = 0
        textures = 0x559ff7ea5398
        pscreen = <optimized out>
#2  0x00007f495e2f6da2 in st_framebuffer_validate (stfb=0x559ffa338900, 
    st=st@entry=0x559ff9aab5c0) at ../src/mesa/state_tracker/st_manager.c:239
        textures = {0x0, 0x1800000000, 0x0, 0x0, 0x0, 0x0}
        resolve = 0x0
        width = <optimized out>
        height = <optimized out>
        i = <optimized out>
        changed = false
        new_stamp = 1
        __PRETTY_FUNCTION__ = "st_framebuffer_validate"
#3  0x00007f495e2f7476 in st_api_make_current (st=0x559ff9aab5c0, 
    stdrawi=stdrawi@entry=0x559ff7ea5250, streadi=streadi@entry=0x559ff7ea5250)
    at ../src/mesa/state_tracker/st_manager.c:1150
        stdraw = 0x559ffa338900
        stread = 0x559ffa338900
        ret = <optimized out>
#4  0x00007f495e2a07fb in dri_make_current (ctx=0x559ff7ec1530, 
    draw=0x559ff7ea5250, read=0x559ff7ea5250)
    at ../src/gallium/frontends/dri/dri_context.c:350
        __PRETTY_FUNCTION__ = "dri_make_current"
#5  0x00007f495e2a3356 in driBindContext (pcp=<optimized out>, 
    pdp=<optimized out>, prp=<optimized out>)
    at ../src/gallium/frontends/dri/dri_util.c:671
No locals.
#6  0x00007f4956a740d2 in dri2_make_current (disp=0x559ff7ebbaf0, 
    dsurf=0x559ff7e94bd0, rsurf=0x559ff7e94bd0, ctx=<optimized out>)
    at ../src/egl/drivers/dri2/egl_dri2.c:1448
        dri2_dpy = 0x559ff7ebc610
        dri2_ctx = 0x559ff7ec4950
        old_disp = 0x559ff7ebbaf0
        old_dri2_dpy = 0x559ff7ebc610
        old_ctx = 0x559ff7ec4950
        old_dsurf = 0x0
        old_rsurf = 0x0
        tmp_dsurf = 0x0
        tmp_rsurf = 0x0
        ddraw = <optimized out>
        rdraw = <optimized out>
        cctx = <optimized out>
        egl_error = 12288
        __PRETTY_FUNCTION__ = "dri2_make_current"
#7  0x00007f4956a69104 in eglMakeCurrent (dpy=<optimized out>, 
    draw=<optimized out>, read=0x559ff7e94bd0, ctx=<optimized out>)
    at ../src/egl/main/eglapi.c:997
        __rs = {0x0, 0x559ff7e94bd0, 0x559ff7e94bd0, 0x559ff7ec4950}
        __rsp = <optimized out>
        disp = 0x559ff7ebbaf0
        context = 0x559ff7ec4950
        draw_surf = 0x559ff7e94bd0
        read_surf = 0x559ff7e94bd0
        ret = 0
        __func__ = "eglMakeCurrent"
#8  0x00007f4956abf9fa in InternalMakeCurrentVendor ()
   from /opt/lib/x86_64-linux-gnu/libEGL.so.1
No symbol table info available.
#9  0x00007f4956ad7270 in use_output ()
   from /opt/lib/x86_64-linux-gnu/libweston-14/gl-renderer.so
No symbol table info available.
#10 0x00007f4956ad9ed3 in gl_renderer_repaint_output ()
   from /opt/lib/x86_64-linux-gnu/libweston-14/gl-renderer.so
No symbol table info available.
#11 0x00007f49609a88cf in drm_output_render_gl ()
   from /opt/lib/x86_64-linux-gnu/libweston-14/drm-backend.so
No symbol table info available.
#12 0x00007f49609a0698 in drm_output_render ()
   from /opt/lib/x86_64-linux-gnu/libweston-14/drm-backend.so
No symbol table info available.
#13 0x00007f49609a0c80 in drm_output_repaint ()
   from /opt/lib/x86_64-linux-gnu/libweston-14/drm-backend.so
No symbol table info available.
#14 0x00007f4960eec63b in output_repaint_timer_handler ()
   from /opt/lib/x86_64-linux-gnu/libweston-14.so.0
No symbol table info available.
#15 0x00007f4960ea8915 in wl_event_loop_dispatch ()
   from /opt/lib/x86_64-linux-gnu/libwayland-server.so.0
No symbol table info available.
#16 0x00007f4960ea737f in wl_display_run ()
   from /opt/lib/x86_64-linux-gnu/libwayland-server.so.0
No symbol table info available.
#17 0x00007f4961119729 in wet_main ()
   from /opt/lib/x86_64-linux-gnu/weston/libexec_weston.so.0
No symbol table info available.
#18 0x00007f4960f5124a in __libc_start_call_main (
    main=main@entry=0x559fbdef6050 <main>, argc=argc@entry=5, 
    argv=argv@entry=0x7ffda312d148)
    at ../sysdeps/nptl/libc_start_call_main.h:58
        self = <optimized out>
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140727339372872, 
                4866681601433173207, 0, 140727339372920, 94144574754232, 
                139953138171936, -4867640213149549353, -4820209723157218089}, 
              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 
              0x7ffda312d148}, data = {prev = 0x0, cleanup = 0x0, 
              canceltype = 0}}}
        not_first_call = <optimized out>
#19 0x00007f4960f51305 in __libc_start_main_impl (main=0x559fbdef6050 <main>, 
    argc=5, argv=0x7ffda312d148, init=<optimized out>, fini=<optimized out>, 
    rtld_fini=<optimized out>, stack_end=0x7ffda312d138)
    at ../csu/libc-start.c:360
No locals.
#20 0x0000559fbdef6081 in _start ()
No symbol table info available.