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Date:      Wed, 10 Jul 2002 17:05:46 -0400
From:      Don Bowman <don@sandvine.com>
To:        "'freebsd-stable@freebsd.org'" <freebsd-stable@freebsd.org>
Subject:   RE: linux JRE 1.4 under linux compatibility only runs as root, 's tatf s' is culprit
Message-ID:  <FE045D4D9F7AED4CBFF1B3B813C85337676719@mail.sandvine.com>

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Don Bowman wrote:

> 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?

--don


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