Date: Mon, 17 Aug 2009 09:14:58 +0000 (UTC) From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r196298 - in stable/8/sys: . amd64/include/xen cddl/contrib/opensolaris cddl/contrib/opensolaris/uts/common/fs/zfs contrib/dev/acpica contrib/pf dev/ata dev/cxgb dev/mfi dev/xen/netfron... Message-ID: <200908170914.n7H9Ewo8056499@svn.freebsd.org>
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Author: pjd Date: Mon Aug 17 09:14:58 2009 New Revision: 196298 URL: http://svn.freebsd.org/changeset/base/196298 Log: MFC r196297: Fix panic in zfs recv code. The last vnode (mountpoint's vnode) can have 0 usecount. Reported by: Thomas Backman <serenity@exscape.org> Approved by: re (kib) Modified: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) stable/8/sys/dev/ata/ (props changed) stable/8/sys/dev/cxgb/ (props changed) stable/8/sys/dev/mfi/ (props changed) stable/8/sys/dev/xen/netfront/ (props changed) stable/8/sys/dev/xen/xenpci/ (props changed) stable/8/sys/modules/dtrace/dtnfsclient/ (props changed) stable/8/sys/modules/ip6_mroute_mod/ (props changed) stable/8/sys/modules/ipmi/ipmi_linux/ (props changed) stable/8/sys/netinet/ipfw/ip_dummynet.c (props changed) stable/8/sys/netinet/ipfw/ip_fw2.c (props changed) stable/8/sys/netinet/ipfw/ip_fw_nat.c (props changed) stable/8/sys/netinet/ipfw/ip_fw_pfil.c (props changed) stable/8/sys/netipx/spx_reass.c (props changed) stable/8/sys/xen/evtchn.h (props changed) stable/8/sys/xen/hypervisor.h (props changed) stable/8/sys/xen/xen_intr.h (props changed) Modified: stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c ============================================================================== --- stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c Mon Aug 17 09:13:22 2009 (r196297) +++ stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c Mon Aug 17 09:14:58 2009 (r196298) @@ -917,7 +917,7 @@ zfsvfs_teardown(zfsvfs_t *zfsvfs, boolea for (zp = list_head(&zfsvfs->z_all_znodes); zp != NULL; zp = list_next(&zfsvfs->z_all_znodes, zp)) if (zp->z_dbuf) { - ASSERT(ZTOV(zp)->v_count > 0); + ASSERT(ZTOV(zp)->v_count >= 0); zfs_znode_dmu_fini(zp); } mutex_exit(&zfsvfs->z_znodes_lock);
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