Re: PREEMPT_RT : 2.6.16-rt12 and boot : BUG ?

[Sébastien Dugué]

  Hi Serge,

Serge Noiraud wrote:
>Hi,
>
>	I always have the same problem since 2.6.16.
>A 2.6.16 kernel boot correctly.
>The 2.6.16+RT patch doesn't. ( I tried all versions rt1-rt12 without success )
>The LSM module is also added ( patch ).
>
>I get symbol resolution error when I try to load my scsi modules in the initrd.
>

 <snip>

>Could not allocate 8 bytes percpu data
>mptscsih: Unknown symbol scsi_remove_host

  Maybe you should try increasing PERCPU_ENOUGH_ROOM in /include/linux/percpu.h
128K may not be enough for your setup. I had it set to 192K before it was bumped
from 64K to 128K in the rt patches. Now 128K is OK for me.

  Cheers,

  Sébastien.


-- 
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  Sébastien Dugué                BULL/FREC:B1-247
  phone: (+33) 476 29 77 70      Bullcom: 229-7770

  mailto:sebastien.dugue@xxxxxxxx

  Linux POSIX AIO: http://www.bullopensource.org/posix
                   http://sourceforge.net/projects/paiol

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