Date: Mon, 28 Aug 2023 18:57:42 +0300 From: Dmitry Chagin <dchagin@freebsd.org> To: current@freebsd.org Subject: Re: Possible issue with linux xattr support? Message-ID: <ZOzD9noXVrslppot@heemeyer.club> In-Reply-To: <elx6cvceobzgw66fskkfhhicsdpsur5xaktluu5tk7m7p4qwno@s7qmm4kyuvag> References: <wngyoks3jy5wjrbv6tlqhv3g4jyu7z4s2broo7qcpit7iebawc@fbfb5iidxtp2> <3q2k3tje2ig2s6wzy4hzvjmoyejiecminvcvevivumtukxrgki@btnpjbztyfa6> <ZOuNvisMH_GXHHX2@heemeyer.club> <pzu4sxp4wvfpn3mzzo2giw3otvg6z5ewia6rr2tdgpkjurfcfe@aat2k6ywm6jm> <ZOuoH6Llw8PKgMJQ@heemeyer.club> <wuwg3egv3rilgfaa5hor47v3yjwzvxlt5krj4la4wvugcnhkg3@vgrtgfr7rc6i> <EA27BAE1-C687-47F9-BB6D-B72A85A5CA8D@cschubert.com> <elx6cvceobzgw66fskkfhhicsdpsur5xaktluu5tk7m7p4qwno@s7qmm4kyuvag>
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On Mon, Aug 28, 2023 at 08:03:33AM +0200, Felix Palmen wrote: > * Cy Schubert <Cy.Schubert@cschubert.com> [20230827 16:59]: > > On August 27, 2023 12:55:23 PM PDT, Felix Palmen <zirias@freebsd.org> 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. > > > > > >Cheers, Felix > > > > > > > If we are to break it to fix a problem, maybe a sysctl to enable/disable then? > > IMHO depends on the exact nature of the problem. If it's confirmed that > it (always and only) breaks for jailed processes, just disabling it for > them would be the better workaround. "No-op" calls won't break anything. > please, try: https://people.freebsd.org/~dchagin/xattrerror.patch
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