diff --git a/src/libcamera/mapped_framebuffer.cpp b/src/libcamera/mapped_framebuffer.cpp
index b3104e0504d4..baa0587b4fcf 100644
--- a/src/libcamera/mapped_framebuffer.cpp
+++ b/src/libcamera/mapped_framebuffer.cpp
@@ -223,6 +223,9 @@ MappedFrameBuffer::MappedFrameBuffer(const FrameBuffer *buffer, MapFlags flags)
 		const int fd = plane.fd.get();
 		auto &info = mappedBuffers[fd];
 		if (!info.address) {
+			LOG(Buffer, Info)
+				<< "Mapping fd: " << fd << ", length: "
+				<< info.mapLength << ", flags: " << mmapFlags;
 			void *address = mmap(nullptr, info.mapLength, mmapFlags,
 					     MAP_SHARED, fd, 0);
 			if (address == MAP_FAILED) {