loader(8) readin failed on 7.2R and later including 8.0R

[John Baldwin]

On Sunday 06 December 2009 12:16:36 am Hiroki Sato wrote:
> Hiroki Sato <hrs at freebsd.org> wrote
>   in <20091205.184250.201700943.hrs at allbsd.org>:
> 
> hr>  A summary so far is:
> hr>
> hr>  1)  a <8MB 7.1R kernel + stock 8.0R loader
> hr>  2a) a >8MB 8.0R kernel + stock 8.0R loader
> hr>  2b) a >8MB 8.0R kernel + 8.0R loader with LOADER_NO_GPT_SUPPORT=yes
> hr>  2c) a >8MB 8.0R kernel + loader with your patch
> hr>  3a) a <8MB 8.0R kernel + stock 8.0R loader
> hr>  3b) a <8MB 8.0R kernel + 8.0R loader with LOADER_NO_GPT_SUPPORT=yes
> hr>  3c) a <8MB 8.0R kernel + loader with your patch
> 
>  Grr, I double-checked how it got stuck, then I found the console
>  redirect was disabled because of an old device.hints.  The revised
>  summary is:
> 
>        loading text      loading syms       boot
>   1)   OK                OK                 OK
>   2a)  "readin failed"   -                  -
>   2b)  OK                "skipped!"         OK
>   2c)  OK                "skipped!"         OK
>   3a)  OK                OK                 OK
>   3b)  OK                OK                 OK
>   3c)  OK                OK                 OK
> 
>  So, the case 2c shows that your patch solves the problem in the case
>  2a.  Thank you! :)
> 
>  Loading >8MB kernel works now, but loading syms sections still fails
>  even in the case 2c.

Ok.  Your system's SMAP is kind of weird (it has a very small region above 
1MB, so it may not deal well with "large" kernels, though I thought it had 
enough room for at least a 12MB kernel.  Hmm, the size of the kernel file may 
be deceptive though since it does not include BSS.  I wonder if it is trying 
to load the symbols after the BSS.

-- 
John Baldwin