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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 58DC7EB64D9 for ; Sun, 2 Jul 2023 18:01:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229605AbjGBSBi (ORCPT ); Sun, 2 Jul 2023 14:01:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48118 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229516AbjGBSBg (ORCPT ); Sun, 2 Jul 2023 14:01:36 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AE46E91 for ; Sun, 2 Jul 2023 11:01:35 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 3ECD460C77 for ; Sun, 2 Jul 2023 18:01:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8899DC433C7; Sun, 2 Jul 2023 18:01:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1688320894; bh=Q2nV0pZzdexZe0GKpp75qKNb6bDX+aSdfVFmRVnoGcw=; h=Date:To:From:Subject:From; b=X8/WUhbRTfXtiRZ52xKrc2CI5HWgDkh7kxowBuEf/H3GOy4vIhNLQsvmE87QKSAm7 T5WKRCqsOdluTnyzvHs2NCobvmXpcExfewSDtQcIsdfublXISkpWh0KCCt+HXfu+HP bzOockaV+TsBKTxDzQsO8GhJcT7cpvitcQp4gOQY= Date: Sun, 02 Jul 2023 11:01:33 -0700 To: mm-commits@vger.kernel.org, bjorn@kernel.org, adobriyan@gmail.com, akpm@linux-foundation.org From: Andrew Morton Subject: + proc-support-proc-empty-vm-test-on-i386.patch added to mm-nonmm-unstable branch Message-Id: <20230702180134.8899DC433C7@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: proc: support proc-empty-vm test on i386 has been added to the -mm mm-nonmm-unstable branch. Its filename is proc-support-proc-empty-vm-test-on-i386.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/proc-support-proc-empty-vm-test-on-i386.patch This patch will later appear in the mm-nonmm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Alexey Dobriyan Subject: proc: support proc-empty-vm test on i386 Date: Fri, 30 Jun 2023 21:34:33 +0300 Unmap everything starting from 4GB length until it unmaps, otherwise test has to detect which virtual memory split kernel is using. Link: https://lkml.kernel.org/r/20230630183434.17434-1-adobriyan@gmail.com Signed-off-by: Alexey Dobriyan Cc: Björn Töpel Signed-off-by: Andrew Morton --- tools/testing/selftests/proc/proc-empty-vm.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) --- a/tools/testing/selftests/proc/proc-empty-vm.c~proc-support-proc-empty-vm-test-on-i386 +++ a/tools/testing/selftests/proc/proc-empty-vm.c @@ -37,6 +37,10 @@ #include #include +#ifdef __amd64__ +#define TEST_VSYSCALL +#endif + /* * 0: vsyscall VMA doesn't exist vsyscall=none * 1: vsyscall VMA is --xp vsyscall=xonly @@ -119,6 +123,7 @@ static void sigaction_SIGSEGV(int _, sig _exit(EXIT_FAILURE); } +#ifdef TEST_VSYSCALL static void sigaction_SIGSEGV_vsyscall(int _, siginfo_t *__, void *___) { _exit(g_vsyscall); @@ -170,6 +175,7 @@ static void vsyscall(void) exit(1); } } +#endif static int test_proc_pid_maps(pid_t pid) { @@ -299,7 +305,9 @@ int main(void) { int rv = EXIT_SUCCESS; +#ifdef TEST_VSYSCALL vsyscall(); +#endif switch (g_vsyscall) { case 0: @@ -346,6 +354,14 @@ int main(void) #ifdef __amd64__ munmap(NULL, ((size_t)1 << 47) - 4096); +#elif defined __i386__ + { + size_t len; + + for (len = -4096;; len -= 4096) { + munmap(NULL, len); + } + } #else #error "implement 'unmap everything'" #endif _ Patches currently in -mm which might be from adobriyan@gmail.com are proc-support-proc-empty-vm-test-on-i386.patch proc-skip-proc-empty-vm-on-anything-but-amd64-and-i386.patch