From owner-svn-src-user@freebsd.org Sat Mar 30 13:59:03 2019 Return-Path: Delivered-To: svn-src-user@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 191E31551B74 for ; Sat, 30 Mar 2019 13:59:03 +0000 (UTC) (envelope-from pho@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id B2C9E894E9; Sat, 30 Mar 2019 13:59:02 +0000 (UTC) (envelope-from pho@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 8BD91FC4C; Sat, 30 Mar 2019 13:59:02 +0000 (UTC) (envelope-from pho@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x2UDx2W3095844; Sat, 30 Mar 2019 13:59:02 GMT (envelope-from pho@FreeBSD.org) Received: (from pho@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x2UDx2Z4095843; Sat, 30 Mar 2019 13:59:02 GMT (envelope-from pho@FreeBSD.org) Message-Id: <201903301359.x2UDx2Z4095843@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: pho set sender to pho@FreeBSD.org using -f From: Peter Holm Date: Sat, 30 Mar 2019 13:59:02 +0000 (UTC) To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r345733 - user/pho/stress2/misc X-SVN-Group: user X-SVN-Commit-Author: pho X-SVN-Commit-Paths: user/pho/stress2/misc X-SVN-Commit-Revision: 345733 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: B2C9E894E9 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.96 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.96)[-0.960,0]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-BeenThere: svn-src-user@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the experimental " user" src tree" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 30 Mar 2019 13:59:03 -0000 Author: pho Date: Sat Mar 30 13:59:02 2019 New Revision: 345733 URL: https://svnweb.freebsd.org/changeset/base/345733 Log: Added a regression test for problem fixed in r345382. Submitted by: markj@ Sponsored by: Dell EMC Isilon Added: user/pho/stress2/misc/mprotect.sh (contents, props changed) Added: user/pho/stress2/misc/mprotect.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/mprotect.sh Sat Mar 30 13:59:02 2019 (r345733) @@ -0,0 +1,52 @@ +#!/bin/sh + +# "panic: pmap_demote_pde: page table page for a wired mapping +# is missing" seen. +# Test scenario by Mark Johnston + +# Fixed by r345382 + +# $FreeBSD$ + +. ../default.cfg + +cd /tmp +cat > mprotect.c < + +#include +#include + +int +main(void) +{ + char *addr, c; + size_t i, len; + + len = 2 * 1024 * 1024; + addr = mmap(NULL, 2 * 1024 * 1024, PROT_READ, + MAP_ANON | MAP_ALIGNED_SUPER, -1, 0); + if (addr == MAP_FAILED) + err(1, "mmap"); + if (mlock(addr, len) != 0) /* hopefully this gets a superpage */ + err(1, "mlock"); + if (mprotect(addr, len, PROT_NONE) != 0) + err(1, "mprotect"); + if (mprotect(addr, len, PROT_READ) != 0) + err(1, "mprotect"); + for (i = 0; i < len; i++) /* preemptive superpage mapping */ + c = *(volatile char *)(addr + i); + if (mprotect(addr, 4096, PROT_NONE) != 0) /* trigger demotion */ + err(1, "mprotect"); + if (munlock(addr, len) != 0) + err(1, "munlock"); + + return (0); +} +EOF +mycc -o mprotect -Wall -Wextra -O2 mprotect.c || exit 1 + +./mprotect; s=$? + +rm mprotect.c mprotect +exit $s