On Mon, Aug 28, 2023 at 08:03:33AM +0200, Felix Palmen wrote:
> * Cy Schubert <cy.schub...@cschubert.com> [20230827 16:59]:
> > On August 27, 2023 12:55:23 PM PDT, Felix Palmen <zir...@freebsd.org> wrote:
> > >* Dmitry Chagin <dcha...@freebsd.org> [20230827 22:46]:
> > >> On Sun, Aug 27, 2023 at 07:59:32PM +0200, Felix Palmen wrote:
> > >> > * Dmitry Chagin <dcha...@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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