Date: Mon, 28 Aug 2023 14:06:33 +0300 From: Dmitry Chagin <dchagin@freebsd.org> To: current@freebsd.org Cc: jamie@freebsd.org Subject: Re: Possible issue with linux xattr support? Message-ID: <ZOx_uYr7qeH10uMX@heemeyer.club> In-Reply-To: <wuwg3egv3rilgfaa5hor47v3yjwzvxlt5krj4la4wvugcnhkg3@vgrtgfr7rc6i> References: <wngyoks3jy5wjrbv6tlqhv3g4jyu7z4s2broo7qcpit7iebawc@fbfb5iidxtp2> <3q2k3tje2ig2s6wzy4hzvjmoyejiecminvcvevivumtukxrgki@btnpjbztyfa6> <ZOuNvisMH_GXHHX2@heemeyer.club> <pzu4sxp4wvfpn3mzzo2giw3otvg6z5ewia6rr2tdgpkjurfcfe@aat2k6ywm6jm> <ZOuoH6Llw8PKgMJQ@heemeyer.club> <wuwg3egv3rilgfaa5hor47v3yjwzvxlt5krj4la4wvugcnhkg3@vgrtgfr7rc6i>
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On Sun, Aug 27, 2023 at 09:55:23PM +0200, Felix Palmen wrote: > * Dmitry Chagin <dchagin@freebsd.org> [20230827 22:46]: > > On Sun, Aug 27, 2023 at 07:59:32PM +0200, Felix Palmen wrote: > > > * Dmitry Chagin <dchagin@freebsd.org> [20230827 20:54]: > > > > 1. which fs are you using? > > > > > > ZFS. > > > > > > > 2. jailed? > > > > > > Yes, this is during building ports with poudriere. > > > > > > > I think it's a weird prohibition on changing system namespace extattr > > attributes, look to comments in extattr_check_cred() > > Maybe that's when I should finally start trying to understand the stuff > in src.git ;) > > > I can fix this completely disabling exttatr for jailed proc, > > however, it's gonna be bullshit, though > > Would probably be better than nothing. AFAIK, "Linux jails" are used a > lot, probably with userlands from distributions actually using xattr. > It might sense to allow this priv (PRIV_VFS_EXTATTR_SYSTEM) for linux jails by default? What do think, James?
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