Andreas Schwab writes:
> 1.25 GB. It also has an nvidia gfx card, in case it matters.
Could you try this patch and see if it fixes it? It puts the code
back to being a bit closer to what it was before.
Paul.
diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c
index a73d2d7..1cef209 100644
--- a/arch/powerpc/mm/slb.c
+++ b/arch/powerpc/mm/slb.c
@@ -226,8 +226,12 @@ void slb_initialize(void)
vflags = SLB_VSID_KERNEL | vmalloc_llp;
/* Invalidate the entire SLB (even slot 0) & all the ERATS */
+ asm volatile("isync":::"memory");
+ asm volatile("slbmte %0,%0"::"r" (0) : "memory");
+ asm volatile("isync; slbia; isync":::"memory");
+
slb_shadow_update(PAGE_OFFSET, lflags, 0);
- asm volatile("isync; slbia; sync; slbmte %0,%1; isync" ::
+ asm volatile("slbmte %0,%1; isync" ::
"r" (get_slb_shadow()->save_area[0].vsid),
"r" (get_slb_shadow()->save_area[0].esid) : "memory");
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