From owner-svn-src-all@freebsd.org Thu Aug 9 14:04:52 2018 Return-Path: Delivered-To: svn-src-all@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 BB90F10674FA; Thu, 9 Aug 2018 14:04:52 +0000 (UTC) (envelope-from luporl@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 7164774145; Thu, 9 Aug 2018 14:04:52 +0000 (UTC) (envelope-from luporl@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 4E29E1A69C; Thu, 9 Aug 2018 14:04:52 +0000 (UTC) (envelope-from luporl@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id w79E4qK2052555; Thu, 9 Aug 2018 14:04:52 GMT (envelope-from luporl@FreeBSD.org) Received: (from luporl@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id w79E4p5F052553; Thu, 9 Aug 2018 14:04:51 GMT (envelope-from luporl@FreeBSD.org) Message-Id: <201808091404.w79E4p5F052553@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: luporl set sender to luporl@FreeBSD.org using -f From: Leandro Lupori Date: Thu, 9 Aug 2018 14:04:51 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r337537 - in head/sys: kern netinet netinet6 X-SVN-Group: head X-SVN-Commit-Author: luporl X-SVN-Commit-Paths: in head/sys: kern netinet netinet6 X-SVN-Commit-Revision: 337537 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Aug 2018 14:04:53 -0000 Author: luporl Date: Thu Aug 9 14:04:51 2018 New Revision: 337537 URL: https://svnweb.freebsd.org/changeset/base/337537 Log: [ppc] Fix kernel panic when using BOOTP_NFSROOT On PowerPC (and possibly other architectures), that doesn't use EARLY_AP_STARTUP, the config task queue may be used initialized. This was observed while trying to mount the root fs from NFS, as reported here: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230168. This patch has 2 main changes: 1- Perform a basic initialization of qgroup_config, similar to what is done in taskqgroup_adjust, but simpler. This makes qgroup_config ready to be used during NFS root mount. 2- When EARLY_AP_STARTUP is not used, call inm_init() and in6m_init() right before SI_SUB_ROOT_CONF, because bootp needs to send multicast packages to request an IP. PR: Bug 230168 Reported by: sbruno Reviewed by: jhibbits, mmacy, sbruno Approved by: jhibbits Differential Revision: D16633 Modified: head/sys/kern/subr_gtaskqueue.c head/sys/netinet/in_mcast.c head/sys/netinet6/in6_mcast.c Modified: head/sys/kern/subr_gtaskqueue.c ============================================================================== --- head/sys/kern/subr_gtaskqueue.c Thu Aug 9 12:46:30 2018 (r337536) +++ head/sys/kern/subr_gtaskqueue.c Thu Aug 9 14:04:51 2018 (r337537) @@ -857,6 +857,24 @@ taskqgroup_bind(struct taskqgroup *qgroup) } } +static void +taskqgroup_config_init(void *arg) +{ + struct taskqgroup *qgroup = qgroup_config; + LIST_HEAD(, grouptask) gtask_head = LIST_HEAD_INITIALIZER(NULL); + + LIST_SWAP(>ask_head, &qgroup->tqg_queue[0].tgc_tasks, + grouptask, gt_list); + qgroup->tqg_queue[0].tgc_cnt = 0; + taskqgroup_cpu_create(qgroup, 0, 0); + + qgroup->tqg_cnt = 1; + qgroup->tqg_stride = 1; +} + +SYSINIT(taskqgroup_config_init, SI_SUB_TASKQ, SI_ORDER_SECOND, + taskqgroup_config_init, NULL); + static int _taskqgroup_adjust(struct taskqgroup *qgroup, int cnt, int stride) { Modified: head/sys/netinet/in_mcast.c ============================================================================== --- head/sys/netinet/in_mcast.c Thu Aug 9 12:46:30 2018 (r337536) +++ head/sys/netinet/in_mcast.c Thu Aug 9 14:04:51 2018 (r337537) @@ -231,8 +231,13 @@ static void inm_init(void) taskqgroup_config_gtask_init(NULL, &free_gtask, inm_release_task, "inm release task"); } +#ifdef EARLY_AP_STARTUP SYSINIT(inm_init, SI_SUB_SMP + 1, SI_ORDER_FIRST, inm_init, NULL); +#else +SYSINIT(inm_init, SI_SUB_ROOT_CONF - 1, SI_ORDER_FIRST, + inm_init, NULL); +#endif void Modified: head/sys/netinet6/in6_mcast.c ============================================================================== --- head/sys/netinet6/in6_mcast.c Thu Aug 9 12:46:30 2018 (r337536) +++ head/sys/netinet6/in6_mcast.c Thu Aug 9 14:04:51 2018 (r337537) @@ -562,8 +562,13 @@ static void in6m_init(void) taskqgroup_config_gtask_init(NULL, &free_gtask, in6m_release_task, "in6m release task"); } +#ifdef EARLY_AP_STARTUP SYSINIT(in6m_init, SI_SUB_SMP + 1, SI_ORDER_FIRST, in6m_init, NULL); +#else +SYSINIT(in6m_init, SI_SUB_ROOT_CONF - 1, SI_ORDER_SECOND, + in6m_init, NULL); +#endif void