Re: PROBLEM: mmc_select_hs400es failed, error -110【请注意，邮件由linux-mmc-owner@vger.kernel.org代发】

["Milan P. Stanić" <mps@arvanta.net>]

Hi,

On Thu, 2020-03-19 at 12:28, Robin Murphy wrote:
> Hi Shawn,
> 
> On 2020-03-19 3:11 am, Shawn Lin wrote:
> > Hi Milan
> > 
> > [+linux-rockchip to see if someone has a Samsung chromebook one plus
> > and could confirm if it works]
> 
> FWIW I've also tried suspend on my NanoPC-T4 and seen that the eMMC (also
> HS400-ES) fails to come back properly on resume (thus resume never completes
> due to the missing root filesystem). IIRC it might even have been
> reproducible with suspend-to-idle, but I'd have to double-check that.
 
I forgot to tell that emmc worked without problem on this machine with
ChromeOS kernel 4.4.xx downloaded from
https://chromium.googlesource.com/chromiumos/third_party/kernel/+/chromeos-4.4
and with patches from
https://github.com/archlinuxarm/PKGBUILDs/tree/master/core/linux-gru
for about two years (iirc).
Problem started when I switched to mainline kernels, somewhere around
5.1.xx

> Robin.
> 
> > On 2020/3/19 5:49, Milan P. Stanić wrote:
> > > Hello,
> > > 
> > > Sorry to annoy again, but could you tell me if I sent this bug report
> > > to right mail address or I should send it somewhere else.
> > > 
> > > Also, did I sent bug report correctly or I did some mistakes which
> > > caused it to be ignored.
> > > 
> > > -- TIA On Sun, 2020-03-01 at 23:02, Milan P. Stanić wrote:
> > > > Hello,
> > > > 
> > > > I'm not native English speaker and I'm self taught in English so sorry
> > > > if do not write or express correctly. And sorry if I posted bug report
> > > > to wrong address.
> > > > 
> > > > I'm running linux 5.6.0-rc3 without any patches on Samsung chromebook
> > > > one plus, Arm64 rockchip rk3399 based model name:
> > > > Machine model: Google Kevin
> > > > 
> > > > I build kernels from upstream git.kernel.org for this machine for some
> > > > time (iirc, from 5.2.1 and up) but I'm getting error messages in kernel
> > > > after machine resumes from suspend-to-ram.
> > 
> > It sounds to me suspend-to-ram never works for this machine, at least
> > since 5.2.1. Am I right?
> > 
> > > > 
> > > > excerpt from dmesg output:
> > > > -----------------------------------------------------------------------
> > > > Restarting tasks ... done.
> > > > PM: suspend exit
> > > > mmc_host mmc0: Bus speed (slot 0) = 400000Hz (slot req 400000Hz,
> > > > actual 400000HZ div = 0)
> > > > mmc1: mmc_select_hs400es failed, error -110
> > > > mmc1: error -110 doing runtime resume
> > > > mmc1: Got data interrupt 0x00000002 even though no data
> > > > operation was in progress.
> > > > mmc1: sdhci: ============ SDHCI REGISTER DUMP ===========
> > > > mmc1: sdhci: Sys addr:  0x00000008 | Version:  0x00001002
> > > > mmc1: sdhci: Blk size:  0x00007200 | Blk cnt:  0x00000008
> > > > mmc1: sdhci: Argument:  0x00000000 | Trn mode: 0x00000023
> > > > mmc1: sdhci: Present:   0x1fff0001 | Host ctl: 0x00000035
> > > > mmc1: sdhci: Power:     0x0000000b | Blk gap:  0x00000080
> > > > mmc1: sdhci: Wake-up:   0x00000000 | Clock:    0x0000bc07
> > > > mmc1: sdhci: Timeout:   0x0000000d | Int stat: 0x00000000
> > > > mmc1: sdhci: Int enab:  0x03ff000b | Sig enab: 0x03ff000b
> > > > mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000
> > > > mmc1: sdhci: Caps:      0x44edc880 | Caps_1:   0x801020f7
> > > > mmc1: sdhci: Cmd:       0x00000c1a | Max curr: 0x00000000
> > > > mmc1: sdhci: Resp[0]:   0x00000000 | Resp[1]:  0x373300bd
> > > > mmc1: sdhci: Resp[2]:   0x35303030 | Resp[3]:  0x00000000
> > > > mmc1: sdhci: Host ctl2: 0x00000000
> > > > mmc1: sdhci: ADMA Err:  0x00000000 | ADMA Ptr: 0xed41e200
> > > > -----------------------------------------------------------------------
> > > > 
> > > > I invoke suspend-to-ram by `echo mem > /sys/power/state` from ACPI power
> > > > and LID button handlers.
> > > > 
> > > > This only happens when I boot and use internal emmc card and never when
> > > > boot and use external mmc card.
> > > > 
> > > > If suspend-to-ram is not invoked (machine is always in normal state)
> > > > this problem never happen (or I missed it somehow).
> > > > 
> > > > I'm attaching kernel .config (file config-5.6.0-rc3-1-gru.conf) which
> > > > use to build kernel, output of the `awk -f scripts/ver_linux` as file
> > > > ver_linux.txt and  output of dmesg as file mmc-err.txt (from which I
> > > > deleted wifi connection logs).
> > > > 
> > > > Sorry if I did something bad or wrong with this bug report, I don't have
> > > > much experience with bug reporting, especially for kernel.
> > > > 
> > > > I'm ready to send you more data, and investigate this more, apply
> > > > patches and rebuild kernel or whatever you ask me (of course if my
> > > > understanding and knowledge is enough for this job).
> > > > 
> > > > Thank in advance
> > > > 
> > > > -- 
> > > > Kind regards
> > > > 
> > > [...]
> > > 
> > > 
> > 
> > 
> > 
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