Date: Sun, 5 Feb 2012 12:11:11 -0500 (EST) From: Daniel Hagerty <hag@linnaean.org> To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/164802: Can't destroy zfs snapshots in 8-stable w/o -R Message-ID: <20120205171111.48AB61FA@perdition.linnaean.org> Resent-Message-ID: <201202051720.q15HK74Z063908@freefall.freebsd.org>
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>Number: 164802 >Category: bin >Synopsis: Can't destroy zfs snapshots in 8-stable w/o -R >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Feb 05 17:20:06 UTC 2012 >Closed-Date: >Last-Modified: >Originator: Daniel Hagerty >Release: FreeBSD 8.2-STABLE amd64 >Organization: I'll let you know when I find some >Environment: System: FreeBSD perdition.linnaean.org 8.2-STABLE FreeBSD 8.2-STABLE #1 r230385+ec72e00: Fri Jan 27 18:41:46 EST 2012 root@perdition.linnaean.org:/usr/src/sys/amd64/compile/LINNAEAN64 amd64 8.2-STABLE, git id bc00e44d, svn r230835, some irrelevant local modifications. >Description: With my most recent update, I am unable to destroy zfs snapshots without using -R. This makes me unhappy, since -R is a big hammer. This is also affect automatic deletion of local snapshots provided by the sysutils/zfs-periodic port I'm using; it (quite sanely) doesn't use -R. >How-To-Repeat: $ zfs snapshot pool@snapshot $ zfs destroy -v pool@snapshot will destroy pool@snapshot will reclaim 0 [Exit 1 ] $ zfs list pool@snapshot NAME USED AVAIL REFER MOUNTPOINT pool@snapshot 0 - 35K - >Fix: Patch that fixes the issue below; it's based on the git id bc00e44d/svn r230835 that I'm currently running. The issue is the use of an uninitialized variable "err". commit 6233abc650e37b32f247f1e6690c9bc96395a6e8 Author: Daniel Hagerty <hag@linnaean.org> Date: Sun Feb 5 11:33:26 2012 -0500 zfs destroy foo@bar fails due to uninitialized var diff --git a/cddl/contrib/opensolaris/cmd/zfs/zfs_main.c b/cddl/contrib/opensolaris/cmd/zfs/zfs_main.c index 78037d4..6bf3267 100644 --- a/cddl/contrib/opensolaris/cmd/zfs/zfs_main.c +++ b/cddl/contrib/opensolaris/cmd/zfs/zfs_main.c @@ -1206,7 +1206,7 @@ zfs_do_destroy(int argc, char **argv) at = strchr(argv[0], '@'); if (at != NULL) { - int err; + int err = 0; /* Build the list of snaps to destroy in cb_nvl. */ if (nvlist_alloc(&cb.cb_nvl, NV_UNIQUE_NAME, 0) != 0) >Release-Note: >Audit-Trail: >Unformatted:
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