[U-Boot] Regression in U-boot v2019-07-rcX

[Lukasz Majewski]

Hi Andy,

> On Wed, Jun 12, 2019 at 04:18:25PM +0300, Andy Shevchenko wrote:
> > Hi!
> > 
> > I have noticed today the regression in newer U-Boot.
> > For now I'm not sure which version is affected first. At least
> > v2019.07-rc4 behaves badly.
> > 
> > Under badly I mean the following. Consider the output at the boot
> > time:
> > 
> > U-Boot 2019.07-rc4-00012-gcea7942d57 (Jun 12 2019 - 16:08:09 +0300)
> > 
> > CPU:   Intel(R) Atom(TM) CPU  U1000  @  500MHz
> > DRAM:  980.6 MiB
> > MMC:   mmc at ff3fc000: 0, mmc at ff3fa000: 1
> > Loading Environment from MMC... OK
> > In:    serial
> > Out:   serial
> > Err:   serial
> > Net:   No ethernet found.
> > Hit any key to stop autoboot:  0 
> > 
> > Note lines started with DRAM: and MMC:. Now the 4 seconds (!) time
> > is passed between them.
> > 
> > On top of that DFU seems twice slower (on the glance, I haven't
> > measure with `time` yet).
> > 
> > Any ideas, while I'll try to allocate some time to investigate
> > myself?
> > 
> > P.S. The board I'm testing with is Intel Edison. I think no need to
> > tell that nothing has been changed except the base (I'm rebased my
> > stuff on top of latest and greatest U-Boot releases).  
> 
> v2019.07-rc1 is NOT affected!
> 
> The time difference with DFU:
> -rc1: real    0m1.114s
> -rc4: real    0m2.691s
> 

Could you bisect between -rc1 and -rc4 ?

Thanks in advance,

Best regards,

Lukasz Majewski

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