Thread (75 messages) 75 messages, 8 authors, 2018-02-13

Re: [PATCH v2 11/15] MIPS: memblock: Perform early low memory test

From: Matt Redfearn <hidden>
Date: 2018-02-13 14:09:16
Also in: lkml

Hi Serge,

On 02/02/18 03:54, Serge Semin wrote:
Low memory can be tested at this point, since all the
reservations have just been finished without much of
additional allocations.
Perhaps something along the lines of:
"Allow an early memtest to be performed by calling early_memtest. 
Testing at this point in the boot sequence should be safe since all 
critical areas are now reserved and a minimum of allocations have been 
done."

Otherwise, looks good to me.

Reviewed-by: Matt Redfearn <redacted>

Thanks,
Matt
quoted hunk ↗ jump to hunk
Signed-off-by: Serge Semin <redacted>
---
  arch/mips/kernel/setup.c | 2 ++
  1 file changed, 2 insertions(+)
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 531a1471a2a4..a0eac8160750 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -850,6 +850,8 @@ static void __init arch_mem_init(char **cmdline_p)
  	memblock_allow_resize();
  
  	memblock_dump_all();
+
+	early_memtest(PFN_PHYS(min_low_pfn), PFN_PHYS(max_low_pfn));
  }
  
  static void __init resource_init(void)
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