[BusyBox] User mode accesses cause a SIGSEGV

Magnus Damm damm at opensource.se
Wed Mar 12 14:03:04 UTC 2003


Are you using a dynamic or a static binary?
I had some issues with glibc and 16-byte cachelines
on mpc8xx platforms when using dynamic linked applications.

/ magnus

On Wed, 12 Mar 2003 12:50:33 -0800 (PST)
Prakash kanthi <pkanthi at yahoo.com> wrote:

> Hi Folk,
> 
> I have a problem with user mode processes on my
> PPC405 based board with 16MB SDRAM. I am using busybox
> based 'init'. When linux boots, init tries to swapn
> 'sh'. Shell starts ok but after that, any
> 'application' started under 'sh' bails out (crashes).
> 
> User mode accesses cause a SIGSEGV for <some
> address>
> 
> The address it bails out is always same and
> generally is a huge value (ex: 0x92612077).
> 
> I am suspecting that there might be something wrong
> with user mode PTEs. I am not sure when PTEs are
> created how they are privileged.
> 
> Any help is appreciated.
> 
> Thanks,
> Prakash
> 
> 
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