From nobody Tue Jun 16 14:56:33 2026 Received: from chaosmail.localdomain (chaosmail.tech [77.81.229.115]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9A12F2E8B67 for ; Mon, 20 Apr 2026 12:25:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=77.81.229.115 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776687923; cv=none; b=lVeqIc7xtVCL5QVJgeoJCy6NqCyw+fUxLZedqnE4OwuIHKHsrBVTIDO1OAljG+SoiAZvXL9mYWhZDsx7kEPt6IYQ8xDfo9XrH/u7tBcJm3pl5KOrF43Glygz6u3DfBhss7xkwFCk5lQIXZQsxPPrdYGZ0uhg0FzwrsI74aylG6A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776687923; c=relaxed/simple; bh=bnC15W3ECPu4vYfLM+l2WX7DqlVVXjhMAy7MGG8WTno=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=BTqnhzWzh5UqxVTqPaEvkMprVSMmKP7MQNMutPi+wTXxFmv2VNxMMHk36DVude9rawcSyVSOdFTbpUu0gSK6CBTrLk4pv9C/eUYrjt1tSeJ1SCMI2F38ZVduwqM9hbyOLXufLF2T8BWBz+JfyZB663kVr1nQw4+/5T6T9zCaNl8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=chaosmail.tech; spf=pass smtp.mailfrom=chaosmail.tech; dkim=pass (1024-bit key) header.d=chaosmail.tech header.i=@chaosmail.tech header.b=nnLyfcDf; arc=none smtp.client-ip=77.81.229.115 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=chaosmail.tech Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chaosmail.tech Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chaosmail.tech header.i=@chaosmail.tech header.b="nnLyfcDf" Received: by chaosmail.localdomain (Postfix) with ESMTPSA id CF4F41D4117; Mon, 20 Apr 2026 12:17:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chaosmail.tech; s=mail; t=1776687473; bh=/PTH1YQKxf++4SqLvTRsLqkxHUKvKP8NqVdN2i4yky4=; h=From:Date:Subject:To:Cc; b=nnLyfcDfYxTdyjmwGfGkD9QR/WfCUqvhkf7dMaHCJyYGW2dM/PDKuMSrQ47X+tcOZ DTQolMn2aex5yyYuDt7vuuBiDrzRTTKzz8ZvSGeAqwT+8cuEhmNkq7pU5hImyUs+9I l/xt9AZPWggPzKmB9eH/jYUbisyRQUE4tH3qmbOo= From: Sasha Finkelstein Date: Mon, 20 Apr 2026 14:17:43 +0200 Subject: [PATCH] drm/appletbdrm: Use kvzalloc for big allocations Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260420-x86-tb-vmalloc-v1-1-7757ff657223@chaosmail.tech> X-B4-Tracking: v=1; b=H4sIAAAAAAAC/yXMyw5AMBCF4VeRWZukmhK8ilhUDUbc0pZIxLsrk rP5Fue/wJFlclBGF1g62PG6BCRxBGbQS0/IbTBIITOhpMAzz9A3eMx6mlaDyhSqTUlTGITTZqn j8wtW9W+3NyMZ/1bgvh/be4t3cgAAAA== X-Change-ID: 20260420-x86-tb-vmalloc-4c94d5eaeeae To: Aun-Ali Zaidi , Aditya Garg , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, soopyc , Sasha Finkelstein X-Developer-Signature: v=1; a=ed25519-sha256; t=1776687472; l=1525; i=k@chaosmail.tech; s=20241124; h=from:subject:message-id; bh=bnC15W3ECPu4vYfLM+l2WX7DqlVVXjhMAy7MGG8WTno=; b=b58f1CCIp3H1alycl74aLFeBUs3sMGPPrHIw8LpOe3Wzt/QJPn/s1RRHqe2ytDOxDXzKNX1VK CPCjHcYMOs0D3JzhJzek8SID/3ZnezLSiIm7Pe5IPy4Fxh4ej14bkyn X-Developer-Key: i=k@chaosmail.tech; a=ed25519; pk=aSkp1PdZ+eF4jpMO6oLvz/YfT5XkBUneWwyhQrOgmsU= This driver is attached to a ~2000x80 screen, which is a lot more than a single page. This causes out of memory errors in some rare cases. Reported-by: soopyc Closes: https://github.com/t2linux/fedora/issues/51 Signed-off-by: Sasha Finkelstein Reviewed-by: Thomas Zimmermann --- drivers/gpu/drm/tiny/appletbdrm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/tiny/appletbdrm.c b/drivers/gpu/drm/tiny/apple= tbdrm.c index 3bae91d7eefe..278bb23fe4c8 100644 --- a/drivers/gpu/drm/tiny/appletbdrm.c +++ b/drivers/gpu/drm/tiny/appletbdrm.c @@ -353,7 +353,7 @@ static int appletbdrm_primary_plane_helper_atomic_check= (struct drm_plane *plane, frames_size + sizeof(struct appletbdrm_fb_request_footer), 16); =20 - appletbdrm_state->request =3D kzalloc(request_size, GFP_KERNEL); + appletbdrm_state->request =3D kvzalloc(request_size, GFP_KERNEL); =20 if (!appletbdrm_state->request) return -ENOMEM; @@ -543,7 +543,7 @@ static void appletbdrm_primary_plane_destroy_state(stru= ct drm_plane *plane, { struct appletbdrm_plane_state *appletbdrm_state =3D to_appletbdrm_plane_s= tate(state); =20 - kfree(appletbdrm_state->request); + kvfree(appletbdrm_state->request); kfree(appletbdrm_state->response); =20 __drm_gem_destroy_shadow_plane_state(&appletbdrm_state->base); --- base-commit: c1f49dea2b8f335813d3b348fd39117fb8efb428 change-id: 20260420-x86-tb-vmalloc-4c94d5eaeeae Best regards, -- =20 Sasha Finkelstein