From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 1B2D151C357; Wed, 30 Sep 2026 18:39:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790793564; cv=none; b=RxFXF68F4yotg/ARlHvEnHpy7lqP1Ark0p7p6gfdetBr/m3bH2PJavgAP7pG8bQRM8ZB+3pbNITNyczkbQ4p8R/UmxLBFkttwbIi0gLe7/ystoc0HQeHbafNPOqib5kL4oyskPaUUOQqdQ54/jgug62oZW5NzmSSS/GJCP3xMzQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790793564; c=relaxed/simple; bh=bFG5t3R+ktKU/lRvm3ER5x24nAXynCBoyazvtjME2fo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=XZhTnDZ5zEFHCILtZLH2bPzWAPdNvvBi+2ux05UsC4r0SFfnVmwcEax8DdfFf/sTGC/Nd8wME0fAHC41V4oYXGAN7WyD+urfit8AGKUV1KPV/42U/rUYClC8+sKsiNfJFkrtlCbDhaxd0ort3D5GgFwbMUmzGIg1wJJj4ftChOc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ENK9fGPr; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ENK9fGPr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 763CD1F000FF; Wed, 30 Sep 2026 18:39:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790793563; bh=Y1KezuCID9WoUxeD2O81Heb4Q2BRLjiRjKqedrcrkjE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=ENK9fGPrzR/4qAQY2jYfGTNwYEGTkNH1UMkP/3CUa/A2ac32dj4uXvHek+WlBAzTx oqDeoCriFAbT2fRzdgjUBhWjho8hJvrx7jAsP8ARrUEydOn4BYeX25bmkypmay/KE5 45yq8YkO+McuaewFPQMK935OZvwq6e0tCyQ0rMis= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Helge Deller , John David Anglin Subject: [PATCH 6.18 298/395] parisc: Increase kernel stack size to 32kb Date: Wed, 30 Sep 2026 17:29:20 +0200 Message-ID: <20260930152347.118811016@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152340.591469096@linuxfoundation.org> References: <20260930152340.591469096@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Helge Deller commit 94b7e3a7e871ae27d4935c76959dfc61829f27f9 upstream. For 64-bit Linux kernels, increase the default kernel stack size (THREAD_SIZE_ORDER) to 32 kB, in order to avoid kernel crashes which have been triggered recently when building the debian vtk9 package with gcc 17: stackcheck: kworker/u128:0 will most likely overflow kernel stack (sp:179a83af0, stk bottom-top:179a80000-179a84000) Kernel panic - not syncing: low stack detected by irq handler - check messages CPU: 2 UID: 0 PID: 30760 Comm: kworker/u128:0 Tainted: G W 6.18.46-dirty #1 NONE Tainted: [W]=WARN Hardware name: 9000/800/rp3440 Workqueue: writeback wb_workfn (flush-259:0) Backtrace: [<000000004022f050>] show_stack+0x70/0x90 [<000000004022378c>] dump_stack_lvl+0x124/0x190 [<000000004022382c>] dump_stack+0x34/0x48 [<000000004020212c>] vpanic+0x204/0x648 [<00000000402025c4>] panic+0x54/0x58 [<0000000040232230>] do_cpu_irq_mask+0x3f8/0x440 [<0000000040227070>] intr_return+0x0/0xc Signed-off-by: Helge Deller Reported-by: John David Anglin Cc: stable@vger.kernel.org # v6.18+ Signed-off-by: Greg Kroah-Hartman --- arch/parisc/include/asm/thread_info.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/parisc/include/asm/thread_info.h +++ b/arch/parisc/include/asm/thread_info.h @@ -24,7 +24,7 @@ struct thread_info { /* thread information allocation */ -#ifdef CONFIG_IRQSTACKS +#if defined(CONFIG_IRQSTACKS) && !defined(CONFIG_64BIT) #define THREAD_SIZE_ORDER 2 /* PA-RISC requires at least 16k stack */ #else #define THREAD_SIZE_ORDER 3 /* PA-RISC requires at least 32k stack */