diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c
index 75257bd20ff0..b54b7883320b 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c
@@ -600,10 +600,8 @@ intel_guc_capture_getnullheader(struct intel_guc *guc,
 	return 0;
 }
 
-#define GUC_CAPTURE_OVERBUFFER_MULTIPLIER 3
-
-int
-intel_guc_capture_output_min_size_est(struct intel_guc *guc)
+static int
+guc_capture_output_min_size_est(struct intel_guc *guc)
 {
 	struct intel_gt *gt = guc_to_gt(guc);
 	struct intel_engine_cs *engine;
@@ -623,13 +621,8 @@ intel_guc_capture_output_min_size_est(struct intel_guc *guc)
 	 * For each engine instance, there would be 1 x guc_state_capture_group_t output
 	 * followed by 3 x guc_state_capture_t lists. The latter is how the register
 	 * dumps are split across different register types (where the '3' are global vs class
-	 * vs instance). Finally, let's multiply the whole thing by 3x (just so we are
-	 * not limited to just 1 round of data in a worst case full register dump log)
-	 *
-	 * NOTE: intel_guc_log that allocates the log buffer would round this size up to
-	 * a power of two.
+	 * vs instance).
 	 */
-
 	for_each_engine(engine, gt, id) {
 		worst_min_size += sizeof(struct guc_state_capture_group_header_t) +
 					 (3 * sizeof(struct guc_state_capture_header_t));
@@ -649,7 +642,30 @@ intel_guc_capture_output_min_size_est(struct intel_guc *guc)
 
 	worst_min_size += (num_regs * sizeof(struct guc_mmio_reg));
 
-	return (worst_min_size * GUC_CAPTURE_OVERBUFFER_MULTIPLIER);
+	return worst_min_size;
+}
+
+/*
+ * Add on a 3x multiplier to allow for multiple back-to-back captures occurring
+ * before the i915 can read the data out and process it
+ */
+#define GUC_CAPTURE_OVERBUFFER_MULTIPLIER 3
+
+static void check_guc_capture_size(struct intel_guc *guc)
+{
+	struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
+	int min_size = guc_capture_output_min_size_est(guc);
+	int spare_size = min_size * GUC_CAPTURE_OVERBUFFER_MULTIPLIER;
+
+	if (min_size < 0)
+		drm_warn(&i915->drm, "Failed to calculate GuC error state capture buffer minimum size: %d!\n",
+			 min_size);
+	else if (min_size > CAPTURE_BUFFER_SIZE)
+		drm_warn(&i915->drm, "GuC error state capture buffer is too small: %d < %d\n",
+			 CAPTURE_BUFFER_SIZE, min_size);
+	else if (spare_size > CAPTURE_BUFFER_SIZE)
+		drm_notice(&i915->drm, "GuC error state capture buffer maybe too small: %d < %d (min = %d)\n",
+			   CAPTURE_BUFFER_SIZE, spare_size, min_size);
 }
 
 /*
@@ -1580,5 +1596,7 @@ int intel_guc_capture_init(struct intel_guc *guc)
 	INIT_LIST_HEAD(&guc->capture->outlist);
 	INIT_LIST_HEAD(&guc->capture->cachelist);
 
+	check_guc_capture_size(guc);
+
 	return 0;
 }
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h
index d3d7bd0b6db6..fbd3713c7832 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h
@@ -21,7 +21,6 @@ int intel_guc_capture_print_engine_node(struct drm_i915_error_state_buf *m,
 void intel_guc_capture_get_matching_node(struct intel_gt *gt, struct intel_engine_coredump *ee,
 					 struct intel_context *ce);
 void intel_guc_capture_process(struct intel_guc *guc);
-int intel_guc_capture_output_min_size_est(struct intel_guc *guc);
 int intel_guc_capture_getlist(struct intel_guc *guc, u32 owner, u32 type, u32 classid,
 			      void **outptr);
 int intel_guc_capture_getlistsize(struct intel_guc *guc, u32 owner, u32 type, u32 classid,
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
index e52ac17ad402..cc8f3d153d8f 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
@@ -487,10 +487,6 @@ int intel_guc_log_create(struct intel_guc_log *log)
 
 	GEM_BUG_ON(log->vma);
 
-	if (intel_guc_capture_output_min_size_est(guc) > CAPTURE_BUFFER_SIZE)
-		DRM_WARN("GuC log buffer for state_capture maybe too small. %d < %d\n",
-			 CAPTURE_BUFFER_SIZE, intel_guc_capture_output_min_size_est(guc));
-
 	guc_log_size = intel_guc_log_size(log);
 
 	vma = intel_guc_allocate_vma(guc, guc_log_size);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
index 18007e639be9..dc9715411d62 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
@@ -22,11 +22,11 @@ struct intel_guc;
 #elif defined(CONFIG_DRM_I915_DEBUG_GEM)
 #define CRASH_BUFFER_SIZE	SZ_1M
 #define DEBUG_BUFFER_SIZE	SZ_2M
-#define CAPTURE_BUFFER_SIZE	SZ_1M
+#define CAPTURE_BUFFER_SIZE	SZ_4M
 #else
 #define CRASH_BUFFER_SIZE	SZ_8K
 #define DEBUG_BUFFER_SIZE	SZ_64K
-#define CAPTURE_BUFFER_SIZE	SZ_16K
+#define CAPTURE_BUFFER_SIZE	SZ_2M
 #endif
 
 /*