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Date:      Thu, 11 Jul 2002 15:07:48 -0700
From:      Shannon -jj Behrens <jj@nttmcl.com>
To:        Don Bowman <don@sandvine.com>, freebsd-stable@freebsd.org, freebsd-java@freebsd.org
Subject:   linux JRE 1.4 under linux compatibility only runs as root
Message-ID:  <20020711150748.B14694@alicia.nttmcl.com>
In-Reply-To: <20020711214742.C259A37B406@hub.freebsd.org>; from owner-freebsd-stable@FreeBSD.ORG on Thu, Jul 11, 2002 at 02:47:42PM -0700
References:  <20020711214742.C259A37B406@hub.freebsd.org>

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> > I know several other people have run into the problem where
> > the (Linux) JDK or JRE 1.4 will only run as root.
> > Tracing this with 'ktrace', the issue is a statfs call,
> > which returns 'RESTART'. I don't see that errno listed on
> > the man page for statfs, I guess it must come from the
> > linux_statfs in compat/linux.
> > 
> >  48927 java     CALL  statfs(0xbf1f)
> >  48927 java     RET   statfs RESTART
> 
> OK, after having found out that 'ktrace' isn't appropriate
> for linux executables (use truss or linux_kdump), I found that
> the culprit is actually:
> 
> linux_sched_getscheduler(0xcb18)                 ERR#1 'Operation not
> permitted'
> 
> when root, this is permitted. When non-root, this is not-permitted.
> 
> Suggestions? Is this a problem with the linux emulation? Or is
> there a permissions difference between linux & freebsd here?

I'm having the same problem.  It looks like this has been discussed on -STABLE,
-JAVA, -HACKERS, and -QUESTIONS, but to no avail:

<http://www.freebsd.org/cgi/getmsg.cgi?fetch=437107+0+/usr/local/www/db/text/2002/freebsd-bugs/20020519.freebsd-bugs>;

I'm sorry for the redundant cross-post, but this looks like a hard one to
solve.

-jj

-- 
Real programmers don't draw flowcharts.  Flowcharts are, after all, the
illiterate's form of documentation.  Cavemen drew flowcharts; look how
much good it did them.

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