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SubjectRe: PREEMPT_RT : 2.6.16-rt12 and boot : BUG ?
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  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@bull.net

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

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