From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 73E2DC433FB for ; Mon, 20 Jul 2020 16:24:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 45AD72073A for ; Mon, 20 Jul 2020 16:24:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595262255; bh=eW2KrhQqTzX7xP0QopsTINkoMeHdMEn+TwYcjkFAGrw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Me5bmqm1pCbepBb6sNelmTXoj+CJWTBOdHBRMUqsMKOexq6ubFJ5uLdMWfdNu3PSR ng546GgWavBcqNjPqfoDmz7hWy7uVtzHDwjbgg063xY16i2gslbdj13AbXIjiW8MYX j9+jbMQO2uxoIrhS2FsneuUg8HNrNwOejqyrkueA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731968AbgGTQD4 (ORCPT ); Mon, 20 Jul 2020 12:03:56 -0400 Received: from mail.kernel.org ([198.145.29.99]:38500 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732793AbgGTQDz (ORCPT ); Mon, 20 Jul 2020 12:03:55 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B18BA20672; Mon, 20 Jul 2020 16:03:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595261035; bh=eW2KrhQqTzX7xP0QopsTINkoMeHdMEn+TwYcjkFAGrw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Fp/MgEK1EjPGRTZ0IJEoJE4yMGne5ox8fcRcKHnvovT1e29NTdLGSgUGRHni46oqV H/3NYhU7PmUB/Af4MtwMlD/V6Uv/DWWKm4pHzJWqUAm/O7rvEIxnmfjqd3U523OF7Q vQXJJuUZ7FyAYQBxopEoc88Zf6bPjps4N1aXgCHs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Andreas Schwab , Anup Patel , Palmer Dabbelt Subject: [PATCH 5.4 185/215] riscv: use 16KB kernel stack on 64-bit Date: Mon, 20 Jul 2020 17:37:47 +0200 Message-Id: <20200720152828.976786584@linuxfoundation.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200720152820.122442056@linuxfoundation.org> References: <20200720152820.122442056@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Andreas Schwab commit 0cac21b02ba5f3095fd2dcc77c26a25a0b2432ed upstream. With the current 8KB stack size there are frequent overflows in a 64-bit configuration. We may split IRQ stacks off in the future, but this fixes a number of issues right now. Signed-off-by: Andreas Schwab Reviewed-by: Anup Patel [Palmer: mention irqstack in the commit text] Fixes: 7db91e57a0ac ("RISC-V: Task implementation") Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt Signed-off-by: Greg Kroah-Hartman --- arch/riscv/include/asm/thread_info.h | 4 ++++ 1 file changed, 4 insertions(+) --- a/arch/riscv/include/asm/thread_info.h +++ b/arch/riscv/include/asm/thread_info.h @@ -12,7 +12,11 @@ #include /* thread information allocation */ +#ifdef CONFIG_64BIT +#define THREAD_SIZE_ORDER (2) +#else #define THREAD_SIZE_ORDER (1) +#endif #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) #ifndef __ASSEMBLY__