Re: 2.6.0-test3-mm1

["Martin J. Bligh" <mbligh@aracnet.com>]

--Andrew Morton <akpm@osdl.org> wrote (on Saturday, August 09, 2003 20:39:43 -0700):

> . This kernel immediately triplefaults when compiled with gcc-2.95.3 and
>   CONFIG_KGDB.  It is due to compiling with "-ggdb" or "-gdwarf-2".  When
>   compiled with "-g" it works OK, but gdb screws that up.
> 
>   Moral: use a later gcc if you're a kgdb user.

Well, on the upside, 2.95.4 (Debian Woody) seems to work fine, so you don't 
have to drown yourself in the pit of slow treacle. However, after printing
"kgdb <20030806.1101.35> : port =3f8, IRQ=4, divisor =1", it spews out 
garbage to the serial console (looks like 8-bit data or something).
I didn't enable it on the cmd line, just compiled it in ... does that 
trigger it for you?

-----

Degredation on kernbench is still there:

Kernbench: (make -j N vmlinux, where N = 16 x num_cpus)
                              Elapsed      System        User         CPU
              2.6.0-test3       45.97      115.83      571.93     1494.50
          2.6.0-test3-mm1       46.43      122.78      571.87     1496.00

Quite a bit of extra sys time. I thought the suspected part of the sched
changes got backed out, but maybe I'm just not following it ...

------

4/4 split is still being wierd for me (same pattern as before). I think
it's just the rc script crapping out which causes the hostname not to
get set, or the rootfs to get remounted r/w.

M.

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