Re: [PATCH] raid5 improve too many read errors msg by adding limits

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On Fri, Aug 16, 2019 at 10:02 AM Nigel Croxon <ncroxon@xxxxxxxxxx> wrote:
>
[...]
> [  +0.000008] md/raid:md127: 793 read_errors, > 781 stripes
> [  +0.000001] md/raid:md127: Too many read errors, failing device dm-0.
> [  +0.000018] md/raid:md127: 794 read_errors, > 781 stripes
> [  +0.000000] md/raid:md127: Too many read errors, failing device dm-0.
> [  +0.000009] md/raid:md127: 795 read_errors, > 781 stripes
> [  +0.000001] md/raid:md127: Too many read errors, failing device dm-0.
> [  +0.000008] md/raid:md127: 796 read_errors, > 781 stripes
> [  +0.000000] md/raid:md127: Too many read errors, failing device dm-0.
> [  +0.000018] md/raid:md127: 797 read_errors, > 781 stripes
> [  +0.000001] md/raid:md127: Too many read errors, failing device dm-0.
> [  +0.000008] md/raid:md127: 798 read_errors, > 781 stripes
> [  +0.000001] md/raid:md127: Too many read errors, failing device dm-0.
> [  +0.000017] md/raid:md127: 799 read_errors, > 781 stripes
> [  +0.000001] md/raid:md127: Too many read errors, failing device dm-0.
> [  +0.000008] md/raid:md127: 800 read_errors, > 781 stripes
> [  +0.000001] md/raid:md127: Too many read errors, failing device dm-0.
> [  +0.000008] md/raid:md127: 801 read_errors, > 781 stripes
> [  +0.000000] md/raid:md127: Too many read errors, failing device dm-0.
> [  +0.000021] md/raid:md127: 802 read_errors, > 781 stripes
> [  +0.000000] md/raid:md127: Too many read errors, failing device dm-0.
> [  +0.000009] md/raid:md127: 803 read_errors, > 781 stripes
> [  +0.000000] md/raid:md127: Too many read errors, failing device dm-0.
> [  +0.000009] md/raid:md127: 804 read_errors, > 781 stripes
> [  +0.000000] md/raid:md127: Too many read errors, failing device dm-0.
> [  +0.000008] md/raid:md127: 805 read_errors, > 781 stripes
> [  +0.000001] md/raid:md127: Too many read errors, failing device dm-0.
> [  +0.928614] md: md127: requested-resync interrupted.
>
This is a little too noisy. How about we only pr_warn() for
test_bit(Faulty) == 0?
(This is not directly related to this patch, but since we are at it).

Thanks,
Song



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