root-owned /proc/pid files for threaded apps?

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I just upgraded from 2.4.8-pre3-ac2 to 2.4.19-pre2-ac2, and found that
for threaded programs like mozilla and xmms, files in /proc/<pid> are
owned by root, even if the process belongs to another user. I
particularly wanted to be able to read /proc/<pid>/environ, but I can't.

Is this a known problem? I haven't seen it float by.

I'll backtrack kernels to see if I can find the patch that caused it and
report back if I hear nothing.

Thanks,
Danek
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