On Wed, Jan 31, 2007 at 11:30:17AM -0300, JuanJo Ciarlante wrote:
> Indeed I did the following tests, based on released utrace patch (OK
> means UML runs w/no problem, BAD means UML stops after VFS root mounting )
> #1 2.6.18.6 vanilla: OK
> #2 2.6.18.6+utrace,CONFIG_{UP}TRACE=y : BAD (same behaviour as FC6 stock
> kernel)
> #3 2.6.18.6+utrace,CONFIG_{UP}TRACE unset: BAD (idem)
>
> Curiously, #3 did the very same as #2 (even wrt strace process disposition
> and strace "behaviour"), I'd expected #3 to simply fail at boot with
> EINVAL or alike (given that no ptrace support was compiled in).
So, it looks like utrace is buggy.
BTW, you can't compile out ptrace (unless the utrace patch actually
removes ptrace and replaces it with its own conditionally compiled
emulation).
Jeff
--
Work email - jdike at linux dot intel dot com
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