[U-Boot] Possible bug in release: fdisk in linux cannot read /dev/mmcblk0 anymore

[U-Boot] Possible bug in release: fdisk in linux cannot read /dev/mmcblk0 anymore

[U.Mutlu]

Hi folks,

# U-Boot 2019.04 Configuration

I just updated to the latest version via git.
My previous version was the recent 2019.04-rc4.

Now in this latest version I think a bug shows up:

Inside Linux on the device, suddenly the following command no longer works:

# fdisk -l /dev/mmcblk0
fdisk: cannot open /dev/mmcblk0: Input/output error

# ls -l /dev/mmcblk0
brw-rw---- 1 root disk 179, 0 Jan  1  1970 /dev/mmcblk0

The device is present, but fdisk cannot read the partitions,
although u-boot has successfully used the boot partition
of this SD card to boot Linux.
IMHO a funny situation, isn't it? :-)

This always had worked for me, up until now.
Is this more a linux issue or a u-boot issue?

Let me know if you need specific data.

Thx

[U-Boot] Possible bug in release: fdisk in linux cannot read /dev/mmcblk0 anymore

[U.Mutlu]

Sorry, seems to be a false alert.

After rebuilding u-boot it works fine again.


U.Mutlu wrote on 04/10/2019 12:37 AM:
> Hi folks,
>
> # U-Boot 2019.04 Configuration
>
> I just updated to the latest version via git.
> My previous version was the recent 2019.04-rc4.
>
> Now in this latest version I think a bug shows up:
>
> Inside Linux on the device, suddenly the following command no longer works:
>
> # fdisk -l /dev/mmcblk0
> fdisk: cannot open /dev/mmcblk0: Input/output error
>
> # ls -l /dev/mmcblk0
> brw-rw---- 1 root disk 179, 0 Jan  1  1970 /dev/mmcblk0
>
> The device is present, but fdisk cannot read the partitions,
> although u-boot has successfully used the boot partition
> of this SD card to boot Linux.
> IMHO a funny situation, isn't it? :-)
>
> This always had worked for me, up until now.
> Is this more a linux issue or a u-boot issue?
>
> Let me know if you need specific data.
>
> Thx