Hi Chirag, On Thu, 10 Jul 2008 22:34:56 +0530 Chirag Jog <chirag@xxxxxxxxxxxxxxxxxx> wrote: > > This patch reintroduces a "fix" that got reverted. > Here was the original patch http://lkml.org/lkml/2007/5/22/133 > > Here is the new patch > This patch also fixes OOPS reported here: http://lkml.org/lkml/2008/6/19/146 > > From tsutomu.owa@xxxxxxxxxxxxx > Signed-Off-By: Chirag <chirag@xxxxxxxxxxxxxxxxxx> This indeed fixes the oops we get with matrix_mult, good job. You can add my Tested-by: Sebastien Dugue <sebastien.dugue@xxxxxxxx> Sebastien. > > > > --- linux-2.6.25.8-rt7/arch/powerpc/kernel/entry_64.S 2008-07-10 16:37:17.000000000 +0000 > +++ linux-2.6.25.8-rt7.mod/arch/powerpc/kernel/entry_64.S 2008-07-10 07:58:56.000000000 +0000 > @@ -579,14 +579,9 @@ do_work: > cmpdi r0,0 > crandc eq,cr1*4+eq,eq > bne restore > - /* here we are preempting the current task */ > 1: > - li r0,1 > - stb r0,PACASOFTIRQEN(r13) > - stb r0,PACAHARDIRQEN(r13) > - ori r10,r10,MSR_EE > - mtmsrd r10,1 /* reenable interrupts */ > - bl .preempt_schedule > + /* preempt_schedule_irq() expects interrupts disabled. */ > + bl .preempt_schedule_irq > mfmsr r10 > clrrdi r9,r1,THREAD_SHIFT > rldicl r10,r10,48,1 /* disable interrupts again */ > -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
