From patchwork Fri Mar 5 12:22:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 394338 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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 08B40C433E9 for ; Fri, 5 Mar 2021 12:38:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DAF0F64F27 for ; Fri, 5 Mar 2021 12:38:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233209AbhCEMiJ (ORCPT ); Fri, 5 Mar 2021 07:38:09 -0500 Received: from mail.kernel.org ([198.145.29.99]:50514 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231439AbhCEMhk (ORCPT ); Fri, 5 Mar 2021 07:37:40 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 439D264FF0; Fri, 5 Mar 2021 12:37:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614947858; bh=CF3d8rCbDwBuOX082sgWKOJbCa+v8mzKHvsB77fmxjo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1+WjllYYE76QiYuFWgc02UuaLk7eYe9MyC7/FZBnD6ZQQCgF0tAvmmIs2Pp2z2XX8 irp6oIvmCgOp8qPbTiJfCt5NHgWMapdBgaUz1widF6wpoTBr4y5ACmYAUervJeTQlW Wu2LwkLSRG50jbpUbz9UbO1pjyMqCd7X53vaFciA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, John David Anglin , Helge Deller , Sasha Levin Subject: [PATCH 4.19 38/52] parisc: Bump 64-bit IRQ stack size to 64 KB Date: Fri, 5 Mar 2021 13:22:09 +0100 Message-Id: <20210305120855.526308326@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210305120853.659441428@linuxfoundation.org> References: <20210305120853.659441428@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: John David Anglin [ Upstream commit 31680c1d1595a59e17c14ec036b192a95f8e5f4a ] Bump 64-bit IRQ stack size to 64 KB. I had a kernel IRQ stack overflow on the mx3210 debian buildd machine. This patch increases the 64-bit IRQ stack size to 64 KB. The 64-bit stack size needs to be larger than the 32-bit stack size since registers are twice as big. Signed-off-by: John David Anglin Signed-off-by: Helge Deller Signed-off-by: Sasha Levin --- arch/parisc/kernel/irq.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c index 0ca254085a66..c152c30c2d06 100644 --- a/arch/parisc/kernel/irq.c +++ b/arch/parisc/kernel/irq.c @@ -380,7 +380,11 @@ static inline int eirr_to_irq(unsigned long eirr) /* * IRQ STACK - used for irq handler */ +#ifdef CONFIG_64BIT +#define IRQ_STACK_SIZE (4096 << 4) /* 64k irq stack size */ +#else #define IRQ_STACK_SIZE (4096 << 3) /* 32k irq stack size */ +#endif union irq_stack_union { unsigned long stack[IRQ_STACK_SIZE/sizeof(unsigned long)];