From nobody Mon Nov 08 11:00:48 2021 X-Original-To: dev-commits-src-all@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id DD73518410A6; Mon, 8 Nov 2021 11:00:48 +0000 (UTC) (envelope-from git@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) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Hnp7N5zf3z4TLX; Mon, 8 Nov 2021 11:00:48 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id ADCA9105D2; Mon, 8 Nov 2021 11:00:48 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 1A8B0mfH016168; Mon, 8 Nov 2021 11:00:48 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 1A8B0mdS016167; Mon, 8 Nov 2021 11:00:48 GMT (envelope-from git) Date: Mon, 8 Nov 2021 11:00:48 GMT Message-Id: <202111081100.1A8B0mdS016167@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Kristof Provost Subject: git: 8ca6c11a7cf8 - main - if_gif: fix vnet shutdown panic List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-all@freebsd.org X-BeenThere: dev-commits-src-all@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: kp X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 8ca6c11a7cf834721c03cbe1a1aab0a17bae4d4d Auto-Submitted: auto-generated X-ThisMailContainsUnwantedMimeParts: N The branch main has been updated by kp: URL: https://cgit.FreeBSD.org/src/commit/?id=8ca6c11a7cf834721c03cbe1a1aab0a17bae4d4d commit 8ca6c11a7cf834721c03cbe1a1aab0a17bae4d4d Author: Kristof Provost AuthorDate: 2021-11-04 17:05:58 +0000 Commit: Kristof Provost CommitDate: 2021-11-08 11:00:00 +0000 if_gif: fix vnet shutdown panic If an if_gif exists and has an address assigned inside a vnet when the vnet is shut down we failed to clean up the address, leading to a panic when we ip_destroy() and the V_in_ifaddrhashtbl is not empty. This happens because of the VNET_SYS(UN)INIT order, which means we destroy the if_gif interface before the addresses can be purged (and if_detach() does not remove addresses, it assumes this will be done by the stack teardown code). Set subsystem SI_SUB_PSEUDO just like if_bridge so the cleanup operations happen in the correct order. MFC after: 3 weeks Sponsored by: Rubicon Communications, LLC ("Netgate") Differential Revision: https://reviews.freebsd.org/D32835 --- sys/net/if_gif.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sys/net/if_gif.c b/sys/net/if_gif.c index 796f427e356b..ea4b80690e50 100644 --- a/sys/net/if_gif.c +++ b/sys/net/if_gif.c @@ -214,7 +214,7 @@ vnet_gif_init(const void *unused __unused) in6_gif_init(); #endif } -VNET_SYSINIT(vnet_gif_init, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY, +VNET_SYSINIT(vnet_gif_init, SI_SUB_PSEUDO, SI_ORDER_ANY, vnet_gif_init, NULL); static void @@ -229,7 +229,7 @@ vnet_gif_uninit(const void *unused __unused) in6_gif_uninit(); #endif } -VNET_SYSUNINIT(vnet_gif_uninit, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY, +VNET_SYSUNINIT(vnet_gif_uninit, SI_SUB_PSEUDO, SI_ORDER_ANY, vnet_gif_uninit, NULL); static int