Program received signal SIGSEGV, Segmentation fault.
prepare_wm_surfaces (brw=0x5a73be0) at brw_wm_surface_state.c:558
558     brw_wm_surface_state.c: File or directory not found.
        in brw_wm_surface_state.c
(gdb) backtrace
#0  prepare_wm_surfaces (brw=0x5a73be0) at brw_wm_surface_state.c:558
        irb = <value optimized out>
        region = 0x0
        i = <value optimized out>
        nr_surfaces = <value optimized out>
#1  0x00007f688258571b in brw_validate_state (brw=0x5a73be0) at brw_state_upload.c:397
        atom = 0x7f6882a3fd00
        state = 0x5a8d0e8
        i = 14
        atoms = 0x7f6882a51790
        num_atoms = <value optimized out>
#2  0x00007f688257879a in brw_try_draw_prims (ctx=<value optimized out>, arrays=<value optimized out>, prim=<value optimized out>,
    nr_prims=<value optimized out>, ib=<value optimized out>, index_bounds_valid=<value optimized out>, min_index=0, max_index=3) at brw_draw.c:370
        hw_prim = 6
        brw = 0x5a73be0
        warn = 0 '\000'
        first_time = 1 '\001'
        i = 0
        intel = 0x5a73be0
#3  brw_draw_prims (ctx=<value optimized out>, arrays=<value optimized out>, prim=<value optimized out>, nr_prims=<value optimized out>,
    ib=<value optimized out>, index_bounds_valid=<value optimized out>, min_index=0, max_index=3) at brw_draw.c:455
        retval = 0 '\000'
#4  0x00007f6882654cfe in vbo_exec_vtx_flush (exec=0x33bfec0, unmap=<value optimized out>) at vbo/vbo_exec_draw.c:384
        ctx = 0x5a73be0
#5  0x00007f6882650531 in vbo_exec_FlushVertices_internal (ctx=<value optimized out>, unmap=0 '\000') at vbo/vbo_exec_api.c:876
        exec = 0x33bfec0
#6  0x00007f6882652792 in vbo_exec_FlushVertices (ctx=0x5a73be0, flags=1) at vbo/vbo_exec_api.c:910
No locals.
#7  0x00007f6882611b23 in _mesa_set_scissor (ctx=0x5a73be0, x=230, y=64454064, width=484, height=358) at main/scissor.c:75
No locals.
#8  0x00007f6882611c18 in _mesa_Scissor (x=0, y=<value optimized out>, width=<value optimized out>, height=<value optimized out>) at main/scissor.c:48
        ctx = 0x5a73be0
#9  0x00007f6883bb4b97 in __glXDisp_Scissor (pc=<value optimized out>) at indirect_dispatch.c:1054
No locals.
#10 0x00007f6883bd67bf in __glXDisp_Render (cl=<value optimized out>, pc=0x5c20134 "\024") at glxcmds.c:1847
        entry = {bytes = 20, varsize = 0}
        extra = <value optimized out>
        proc = 0x7f6883bb4b77 <__glXDisp_Scissor>
        err = 0
        req = <value optimized out>
        client = 0x330e350
        left = 568
        cmdlen = 20
        error = <value optimized out>
        commandsDone = 24
        hdr = 0x5c20134
        glxc = 0x34bf860
        sw = <value optimized out>
#11 0x00007f6883bdac6d in __glXDispatch (client=0x330e350) at glxext.c:600
        stuff = 0x5c20028
        opcode = <value optimized out>
        proc = 0x7f6883bd6644 <__glXDisp_Render>
        cl = 0x330e468
        retval = 1
#12 0x000000000042e78c in Dispatch () at dispatch.c:432
        clientReady = 0x3324270
        result = 0
        client = 0x330e350
        nready = <value optimized out>
        start_tick = 3380
#13 0x000000000042498b in main (argc=10, argv=0x7fffbfbc8728, envp=<value optimized out>) at main.c:291
        i = 1
        alwaysCheckForInput = {0, 1}