From bf663ef1b0cdf01d8fd4c02ae66258057cc66b5d Mon Sep 17 00:00:00 2001 From: zhongqinxuan Date: Thu, 15 Jan 2026 10:54:20 +0800 Subject: [PATCH] fix deadlock bug due to insufficient buffer in repair request. --- sys/v4l2/gstv4l2object.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sys/v4l2/gstv4l2object.c b/sys/v4l2/gstv4l2object.c index ee699fb..9450c9f 100644 --- a/sys/v4l2/gstv4l2object.c +++ b/sys/v4l2/gstv4l2object.c @@ -4989,6 +4989,12 @@ gst_v4l2_object_decide_allocation (GstV4l2Object * obj, GstQuery * query) * frame. */ own_min = min + obj->min_buffers + 2; + if (own_min < 4) { + GST_WARNING_OBJECT (obj->element, "Calculated own_min=%d is too low, forcing to 4 to prevent driver starvation", own_min); + own_min = 4; + } + GST_INFO_OBJECT (obj->element, "Allocation decision: downstream min=%d, driver min=%d -> own_min=%d", min, obj->min_buffers, own_min); + /* If no allocation parameters where provided, allow for a little more * buffers and enable copy threshold */ if (!update) { -- 2.25.1