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Message-ID: <CALAqxLWu8E16ZyraPaap6w3SVbb2ByKWB6HAcALQ9xWrXw9V+A@mail.gmail.com>
Date:   Mon, 21 May 2018 10:14:55 -0700
From:   John Stultz <john.stultz@...aro.org>
To:     Leo Yan <leo.yan@...aro.org>
Cc:     Wei Xu <xuwei5@...ilicon.com>, Ryan Grachek <ryan@...ted.us>,
        Arnd Bergmann <arnd@...db.de>,
        Guodong Xu <guodong.xu@...aro.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        YongQin Liu <yongqin.liu@...aro.org>,
        lkml <linux-kernel@...r.kernel.org>
Subject: Re: REGRESSION: HiKey eMMC corruption

On Mon, May 21, 2018 at 2:03 AM, Leo Yan <leo.yan@...aro.org> wrote:
> Hi Wei, John,
>
> On Mon, May 21, 2018 at 09:34:04AM +0100, Wei Xu wrote:
>> Hi John,
>>
>> On 2018/5/18 23:59, John Stultz wrote:
>> > The last few months have been busy and I've not been ontop of my
>> > upstream testing as well as I'd like, but today I did manage to chase
>> > down an issue I've been seeing since 4.17-rc1 on the HiKey board,
>> > which was causing emmc corruption and stopping the board from booting.
>> >
>> > Symptoms usually looked like:
>> > [    1.690448] mmc_host mmc0: Bus speed (slot 0) = 24800000Hz (slot
>> > req 400000Hz, actual 400000HZ div = 31)
>> > ...
>> > [    1.777288] mmc_host mmc0: Bus speed (slot 0) = 148800000Hz (slot
>> > req 150000000Hz, actual 148800000HZ div = 0)
>> > [    1.777760] mmc0: new HS200 MMC card at address 0001
>> > ...
>> > [   12.214381] dwmmc_k3 f723d000.dwmmc0: Unexpected command timeout, state 3
>> > [   12.457420] mmc_host mmc0: Bus speed (slot 0) = 24800000Hz (slot
>> > req 400000Hz, actual 400000HZ div = 31)
>> > [   12.536676] mmc_host mmc0: Bus speed (slot 0) = 148800000Hz (slot
>> > req 150000000Hz, actual 148800000HZ div = 0)
>> > [   12.616827] mmc_host mmc0: Bus speed (slot 0) = 24800000Hz (slot
>> > req 400000Hz, actual 400000HZ div = 31)
>> > [   12.695742] mmc_host mmc0: Bus speed (slot 0) = 148800000Hz (slot
>> > req 150000000Hz, actual 148800000HZ div = 0)
>> > [   12.772067] mmc_host mmc0: Bus speed (slot 0) = 24800000Hz (slot
>> > req 400000Hz, actual 400000HZ div = 31)
>> > [   12.850429] mmc_host mmc0: Bus speed (slot 0) = 148800000Hz (slot
>> > req 150000000Hz, actual 148800000HZ div = 0)
>> > [   12.863384] print_req_error: I/O error, dev mmcblk0, sector 8810504
>> > [   12.869778] Aborting journal on device mmcblk0p10-8.
>> > [   12.887900] mmc_host mmc0: Bus speed (slot 0) = 24800000Hz (slot
>> > req 400000Hz, actual 400000HZ div = 31)
>> > [   12.967509] mmc_host mmc0: Bus speed (slot 0) = 148800000Hz (slot
>> > req 150000000Hz, actual 148800000HZ div = 0)
>> > [   13.130182] mmc_host mmc0: Bus speed (slot 0) = 24800000Hz (slot
>> > req 400000Hz, actual 400000HZ div = 31)
>> > [   13.209438] mmc_host mmc0: Bus speed (slot 0) = 148800000Hz (slot
>> > req 150000000Hz, actual 148800000HZ div = 0)
>> > [   13.302085] mmc_host mmc0: Bus speed (slot 0) = 24800000Hz (slot
>> > req 400000Hz, actual 400000HZ div = 31)
>> > [   13.380462] mmc_host mmc0: Bus speed (slot 0) = 148800000Hz (slot
>> > req 150000000Hz, actual 148800000HZ div = 0)
>> > [   13.494539] mmc_host mmc0: Bus speed (slot 0) = 24800000Hz (slot
>> > req 400000Hz, actual 400000HZ div = 31)
>> > [   13.571420] mmc_host mmc0: Bus speed (slot 0) = 148800000Hz (slot
>> > req 150000000Hz, actual 148800000HZ div = 0)
>> > [   13.640817] EXT4-fs error (device mmcblk0p10):
>> > ext4_journal_check_start:61: Detected aborted journal
>> > [   13.650043] EXT4-fs (mmcblk0p10): Remounting filesystem read-only
>> >
>> > And quite often this would result in a disk that wouldn't properly
>> > boot even with older kernels.
>> >
>> > I've narrowed the issue down to the following change:
>> > abd7d0972a192 ("arm64: dts: hikey: Enable HS200 mode on eMMC")
>> >
>> > Reverting this change seems to make things work reliably for me.
>>
>> Thanks to report this!
>> Let me check with Leo and Guodong to know which property changing
>> this is caused by.
>>
>> Hi Leo and Guodong,
>>
>> Can you help to confirm the commit abd7d0972a192?
>> From the log it seemed to cause by the property "max-frequency".
>
> The commit abd7d0972a192 ("arm64: dts: hikey: Enable HS200 mode on
> eMMC") can work well on my Hikey620 board, my Hikey620 board is
> Lemaker version with 8GB Samsung emmc flash.
>
> John, are you using different Hikey manufacturing version?

No, its a standard 8gb version.  Later today I'll try to narrow down
if only part of the dts changes can be reverted.

thanks
-john

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