[LTP] msgctl10 fails on Powerpc Linux-2.6.29.6

[Kumar Gala]

On Jul 22, 2009, at 11:32 AM, srikanth krishnakar wrote:

>
>
> On Wed, Jul 22, 2009 at 9:14 PM, Kumar Gala  
> <galak at kernel.crashing.org> wrote:
>
> On Jul 22, 2009, at 10:38 AM, srikanth krishnakar wrote:
>
>
>
> On Wed, Jul 22, 2009 at 8:52 PM, Kumar Gala  
> <galak at kernel.crashing.org> wrote:
> I'm not seeing any BUG* in traps.c @ line 904.
>
>
> On Jul 21, 2009, at 4:33 AM, srikanth krishnakar wrote:
>
> The LTP test case msgctl10.c fails on linux-2.6.29.6 for PowerPC  
> architecture (ppc440)
>
>
> msgctl10    1  B------------[ cut here ]------------
> kernel BUG at arch/powerpc/kernel/traps.c:904!
> Oops: Exception in kernel mode, sig: 5 [#9]
>
> I'm not seeing any BUG* in traps.c @ line 904.  Do you have some  
> other patches on top of 2.6.29.6?
>
> - k
>
>
> I have LTTng patches on top of linux-2.6.29.6.
>
> Does it modify traps.c?  Can you see what the code around line 904  
> looks like and post that.
>
> - k
>  896
>  897 #if defined(CONFIG_XILINX_VIRTEX_5_FXT) &&  
> defined(CONFIG_PPC_FPU)
>  898         if (reason & REASON_ILLEGAL) {
>  899                 if (excep_state < 1) {
>  900                         excep_state++;
>  901                         return;
>  902                 }
>  903                 /* should never get here */
>  904                 BUG();
>  905         }
>  906 #endif
>  907
>  908         /* Try to emulate it if we should. */
>

Are you sure this is coming from the LTTng patches?  Which actual  
patch makes this change?

- k