From: José Fonseca <jfons...@vmware.com>

A recent ApiTrace change, that tries to dump more buffer state
causes Mesa from my distro (10.1.4) to segfaults here.

I haven't actually confirm this fixes it (I can't repro on master),
but it seems a good idea to be defensive here anyway.

Cc: "10.1 10.2" <mesa-sta...@lists.freedesktop.org>
---
 src/mesa/main/get.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index 267b5f2..9b56edb 100644
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -1005,7 +1005,11 @@ find_custom_value(struct gl_context *ctx, const struct 
value_desc *d, union valu
       break;
    /* GL_ARB_shader_atomic_counters */
    case GL_ATOMIC_COUNTER_BUFFER_BINDING:
-      v->value_int = ctx->AtomicBuffer->Name;
+      if (ctx->AtomicBuffer) {
+         v->value_int = ctx->AtomicBuffer->Name;
+      } else {
+         v->value_int = 0;
+      }
       break;
    /* GL_ARB_draw_indirect */
    case GL_DRAW_INDIRECT_BUFFER_BINDING:
-- 
2.0.0.rc2

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