From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.7]) (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 50DF521FF3C for ; Wed, 9 Jul 2025 20:25:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.7 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752092720; cv=none; b=hK70Ymi1LavUqosnbSrFZqU1VDeZnwwk0hzKGAqF1HiZARTspmu68pDHYVadFOGUjP7rei1MV/PS5X+fNiAa2388rkjTwlklM+rt6A9QFbiE5ZKAMYp2N71eiTeEbo4jz1D5WGFJmGTYOekdbD3efs9ZOeLa8LDTsWHb8KmVeXs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752092720; c=relaxed/simple; bh=VzTu4P7mSOK4JQn3mk4QiLG115YYxO1GsjExJqNr+xw=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=KSN3grxtPoFV6S43hzrZCXID4Tk3FCCBN+2MOY6KdVOT2taPOIPKvZlL1HU0bSw+wUFRXvUWCuau4XBe42c3tXR7+n6YOaVPQJM6RBox0BzJ+Al03OXFwu+B+nmggcsRplx8ckQ0kOT15q3t/uP9RlbprWzSp5SbDIZga7yCq80= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=GUdlkI+k; arc=none smtp.client-ip=192.198.163.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="GUdlkI+k" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1752092718; x=1783628718; h=date:from:to:cc:subject:message-id:mime-version; bh=VzTu4P7mSOK4JQn3mk4QiLG115YYxO1GsjExJqNr+xw=; b=GUdlkI+kD+u5ZNE5a7+EA7qjTelGWHGrFx/X6BiDzEdU+VKXdxFgG86e CQUDqXP0VFbPmRH2GQ32v5HK1wRRKue8GplToxJu4E3gQaoQinwIaGX6Y b1Kon15ge+gf810oW6vtn6QB0qFlBGBKdtkzh8VsX8K9JgGUSLF4OTeig wNYENtYjgtJuS8QeQV8jkmTbGA8URu2kA7UyFr0lIR0loHnUGkCjEIDCk Fg/qVPIGtHJDNEEcLMdmLtSAcOufVbdygKRabMe6eWfhD0y3XvT/q2X39 TIAnUHMLYCqnNMc+1W9LOrqfJA8HmKrTjMcb7J+rc4MhJUMsmZKmcmuox A==; X-CSE-ConnectionGUID: acmGaUzbTyK+CV3nchjhww== X-CSE-MsgGUID: c+PpM3mORcKHqVEThj7nsw== X-IronPort-AV: E=McAfee;i="6800,10657,11489"; a="79801849" X-IronPort-AV: E=Sophos;i="6.16,298,1744095600"; d="scan'208";a="79801849" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jul 2025 13:25:18 -0700 X-CSE-ConnectionGUID: /asnaaRUTL6BKTU7X2eJrg== X-CSE-MsgGUID: Jfp7NfCpQyew48EtkBkZZA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,299,1744095600"; d="scan'208";a="156009947" Received: from lkp-server01.sh.intel.com (HELO 9ee84586c615) ([10.239.97.150]) by orviesa007.jf.intel.com with ESMTP; 09 Jul 2025 13:25:16 -0700 Received: from kbuild by 9ee84586c615 with local (Exim 4.96) (envelope-from ) id 1uZbLu-00042Z-0i; Wed, 09 Jul 2025 20:25:14 +0000 Date: Thu, 10 Jul 2025 04:25:03 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Dan Carpenter Subject: [android-common:android15-6.6 6/6] kernel/fork.c:2318 copy_dmabuf_info() warn: sleeping in atomic context Message-ID: <202507100414.f3Yyuj82-lkp@intel.com> Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev TO: cros-kernel-buildreports@googlegroups.com tree: https://android.googlesource.com/kernel/common android15-6.6 head: a9597c7b32ec09bdaf13909f77b203e77b4fbb69 commit: f44d593749dcbd4e1013121fa615ecca412d1cb3 [6/6] ANDROID: Track per-process dmabuf RSS :::::: branch date: 12 hours ago :::::: commit date: 21 hours ago config: i386-randconfig-141-20250709 (https://download.01.org/0day-ci/archive/20250710/202507100414.f3Yyuj82-lkp@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0 If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202507100414.f3Yyuj82-lkp@intel.com/ smatch warnings: kernel/fork.c:2318 copy_dmabuf_info() warn: sleeping in atomic context vim +2318 kernel/fork.c 792575348ff70e Daniel Bristot de Oliveira 2022-07-29 2291 f44d593749dcbd T.J. Mercier 2025-06-25 2292 static int copy_dmabuf_info(u64 clone_flags, struct task_struct *p) f44d593749dcbd T.J. Mercier 2025-06-25 2293 { f44d593749dcbd T.J. Mercier 2025-06-25 2294 struct task_dma_buf_record *rec, *copy; f44d593749dcbd T.J. Mercier 2025-06-25 2295 f44d593749dcbd T.J. Mercier 2025-06-25 2296 if (current->dmabuf_info && (clone_flags & (CLONE_VM | CLONE_FILES)) f44d593749dcbd T.J. Mercier 2025-06-25 2297 == (CLONE_VM | CLONE_FILES)) { f44d593749dcbd T.J. Mercier 2025-06-25 2298 /* f44d593749dcbd T.J. Mercier 2025-06-25 2299 * Both MM and FD references to dmabufs are shared with the parent, so f44d593749dcbd T.J. Mercier 2025-06-25 2300 * we can share a RSS counter with the parent. f44d593749dcbd T.J. Mercier 2025-06-25 2301 */ f44d593749dcbd T.J. Mercier 2025-06-25 2302 refcount_inc(¤t->dmabuf_info->refcnt); f44d593749dcbd T.J. Mercier 2025-06-25 2303 p->dmabuf_info = current->dmabuf_info; f44d593749dcbd T.J. Mercier 2025-06-25 2304 return 0; f44d593749dcbd T.J. Mercier 2025-06-25 2305 } f44d593749dcbd T.J. Mercier 2025-06-25 2306 f44d593749dcbd T.J. Mercier 2025-06-25 2307 p->dmabuf_info = kmalloc(sizeof(*p->dmabuf_info), GFP_KERNEL); f44d593749dcbd T.J. Mercier 2025-06-25 2308 if (!p->dmabuf_info) f44d593749dcbd T.J. Mercier 2025-06-25 2309 return -ENOMEM; f44d593749dcbd T.J. Mercier 2025-06-25 2310 f44d593749dcbd T.J. Mercier 2025-06-25 2311 refcount_set(&p->dmabuf_info->refcnt, 1); f44d593749dcbd T.J. Mercier 2025-06-25 2312 spin_lock_init(&p->dmabuf_info->lock); f44d593749dcbd T.J. Mercier 2025-06-25 2313 INIT_LIST_HEAD(&p->dmabuf_info->dmabufs); f44d593749dcbd T.J. Mercier 2025-06-25 2314 if (current->dmabuf_info) { f44d593749dcbd T.J. Mercier 2025-06-25 2315 spin_lock(¤t->dmabuf_info->lock); f44d593749dcbd T.J. Mercier 2025-06-25 2316 p->dmabuf_info->rss = current->dmabuf_info->rss; f44d593749dcbd T.J. Mercier 2025-06-25 2317 list_for_each_entry(rec, ¤t->dmabuf_info->dmabufs, node) { f44d593749dcbd T.J. Mercier 2025-06-25 @2318 copy = kmalloc(sizeof(*copy), GFP_KERNEL); f44d593749dcbd T.J. Mercier 2025-06-25 2319 if (!copy) { f44d593749dcbd T.J. Mercier 2025-06-25 2320 spin_unlock(¤t->dmabuf_info->lock); f44d593749dcbd T.J. Mercier 2025-06-25 2321 goto err_list_copy; f44d593749dcbd T.J. Mercier 2025-06-25 2322 } f44d593749dcbd T.J. Mercier 2025-06-25 2323 f44d593749dcbd T.J. Mercier 2025-06-25 2324 copy->dmabuf = rec->dmabuf; f44d593749dcbd T.J. Mercier 2025-06-25 2325 copy->refcnt = rec->refcnt; f44d593749dcbd T.J. Mercier 2025-06-25 2326 list_add(©->node, &p->dmabuf_info->dmabufs); f44d593749dcbd T.J. Mercier 2025-06-25 2327 } f44d593749dcbd T.J. Mercier 2025-06-25 2328 spin_unlock(¤t->dmabuf_info->lock); f44d593749dcbd T.J. Mercier 2025-06-25 2329 } else { f44d593749dcbd T.J. Mercier 2025-06-25 2330 p->dmabuf_info->rss = 0; f44d593749dcbd T.J. Mercier 2025-06-25 2331 } f44d593749dcbd T.J. Mercier 2025-06-25 2332 f44d593749dcbd T.J. Mercier 2025-06-25 2333 return 0; f44d593749dcbd T.J. Mercier 2025-06-25 2334 f44d593749dcbd T.J. Mercier 2025-06-25 2335 err_list_copy: f44d593749dcbd T.J. Mercier 2025-06-25 2336 list_for_each_entry_safe(rec, copy, &p->dmabuf_info->dmabufs, node) { f44d593749dcbd T.J. Mercier 2025-06-25 2337 list_del(&rec->node); f44d593749dcbd T.J. Mercier 2025-06-25 2338 kfree(rec); f44d593749dcbd T.J. Mercier 2025-06-25 2339 } f44d593749dcbd T.J. Mercier 2025-06-25 2340 kfree(p->dmabuf_info); f44d593749dcbd T.J. Mercier 2025-06-25 2341 return -ENOMEM; f44d593749dcbd T.J. Mercier 2025-06-25 2342 } f44d593749dcbd T.J. Mercier 2025-06-25 2343 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki