From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752699AbeAaUTS (ORCPT ); Wed, 31 Jan 2018 15:19:18 -0500 Received: from mail-lf0-f65.google.com ([209.85.215.65]:43244 "EHLO mail-lf0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751745AbeAaUTQ (ORCPT ); Wed, 31 Jan 2018 15:19:16 -0500 X-Google-Smtp-Source: AH8x224NAOi1Lyfgrf/eMLOxLaG20GW+WdGlHTQ1J78XxI0xigBrkJQphQsazqupYCxakBCQSNSrsA== From: Anders Roxell To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: linux@armlinux.org.uk, arnd@arndb.de, Anders Roxell Subject: [PATCHv2] arch/arm/Kconfig: default ARM_MODULE_PLTS to 'y' Date: Wed, 31 Jan 2018 21:19:11 +0100 Message-Id: <20180131201911.19253-1-anders.roxell@linaro.org> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180129234900.11121-1-anders.roxell@linaro.org> References: <20180129234900.11121-1-anders.roxell@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org While testing multi_v7_defconfig with LOCKDEP enabled, the kernel fails to load simple modules, as reported by kselftest: [ 34.107620] test_printf: section 4 reloc 2 sym 'memset': relocation 28 out of range (0xbf046044 -> 0xc109f720) selftests: printf.sh [FAIL] The problem that is seen when LOCKDEP is enabled without ARM_MODULE_PLTS, is that LOCKDEP eats so much memory that the top of the kernel gets out of reach from the bottom of the module area. Suggested-by: Arnd Bergmann Signed-off-by: Anders Roxell --- arch/arm/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 51c8df561077..8014c8c322df 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1702,6 +1702,7 @@ config ARCH_WANT_GENERAL_HUGETLB config ARM_MODULE_PLTS bool "Use PLTs to allow module memory to spill over into vmalloc area" depends on MODULES + default y help Allocate PLTs when loading modules so that jumps and calls whose targets are too far away for their relative offsets to be encoded -- 2.11.0