Date: Sun, 04 Apr 2010 13:23:38 +0200 From: Martin Matuska <mm@FreeBSD.org> To: Andriy Gapon <avg@freebsd.org> Cc: svn-src-head@freebsd.org, Pawel Jakub Dawidek <pjd@freebsd.org>, svn-src-all@freebsd.org, src-committers@freebsd.org, Xin LI <delphij@freebsd.org> Subject: Re: svn commit: r205198 - in head/cddl/contrib/opensolaris: cmd/zfs lib/libzfs/common Message-ID: <4BB876BA.2030607@FreeBSD.org> In-Reply-To: <4BB75EEF.8060201@freebsd.org> References: <201003160048.o2G0mReg025652@svn.freebsd.org> <4BB75C8D.8070607@freebsd.org> <4BB75EEF.8060201@freebsd.org>
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The fix is correct. It has been fixed in OpenSolaris rev. 9396. I have filed a PR kern/145377 The PR includes the complete patch from OpenSolaris including their commented code. Link: http://www.freebsd.org/cgi/query-pr.cgi?pr=145377 Dňa 3. 4. 2010 17:29, Andriy Gapon wrote / napísal(a): > on 03/04/2010 18:19 Andriy Gapon said the following: > >> It seems that this commit causes a crash in zfs(1) when e.g. 'zfs list' is >> executed and one of the filesystems has a user property set on it. >> >> The crash is in zfs_prune_proplist function at >> cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c:4291. >> >> Relevant code snippet: >> 4286 >> 4287 while (curr) { >> 4288 zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); >> 4289 nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); >> 4290 >> 4291 if (props[zfs_prop] == B_FALSE) >> 4292 (void) nvlist_remove(zhp->zfs_props, >> 4293 nvpair_name(curr), nvpair_type(curr)); >> 4294 curr = next; >> 4295 } >> >> zfs_prop is (-1) and nvpair_name(curr) is my custom property "avg:nobackup". >> Not sure if this was fixed in OpenSolaris or what. >> > BTW, I use this simplistic change for time being, not sure if this is a correct fix. > > --- a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c > +++ b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c > @@ -4288,7 +4288,7 @@ zfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) > zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); > nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); > > - if (props[zfs_prop] == B_FALSE) > + if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) > (void) nvlist_remove(zhp->zfs_props, > nvpair_name(curr), nvpair_type(curr)); > curr = next; > > >
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