Analysing /data with root enabled does not work anymore

[Massedil]

I tried the 5.0-alpha0 on F-Droid and I can't see my files when I try to show /data partition.

It was working with the 3.8.0 version.

Phone: Samsung Galaxy S5 LineageOS : 18.1

[Massedil]

[IvanVolosyuk]

Does it work on an older version of diskusage on the same device? I don't have access to rooted devices at this point, so my debugging abilities are limited and the code for capturing this state is removed now.

On Thu, Dec 7, 2023 at 11:42 PM Massedil @.***> wrote:

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[Massedil]

Does it work on an older version of diskusage on the same device?

Yes, it works with the 3.8.0 F-Droid version.

[Massedil]

The only bug with 3.8.0 is that 2 same folders (but mounted twice with different names) are counted twice instead of one.

/data/data and /data/user/0 are the same folder.

Here is 3.8.0 on the same device :

[tuxayo]

Same issue as this ticket and same issue with the old version:

The only bug with 3.8.0 is that 2 same folders (but mounted twice with different names) are counted twice instead of one.

phone: Fairphone 3 Android 13 (LineageOS for microG 20) encrypted

I tried various other entries like "/data/user/0" and it doesn't data either.

[binarynoise]

The issue with limited access to /data can be worked around by calling magisk su with

  -mm, -M,
  --mount-master                Force run in the global mount namespace

And the app should check for and not follow symlinks (like /data/user/0 -> /data/data)

[IvanVolosyuk]

Patches are welcome.

On Wed, Dec 13, 2023 at 7:46 PM binarynoise @.***> wrote:

The issue with limited access to /data can be worked around by calling magisk su with

-mm, -M, --mount-master Force run in the global mount namespace

And the app should check for and not follow symlinks (like /data/user/0 -> /data/data)

— Reply to this email directly, view it on GitHub https://github.com/IvanVolosyuk/diskusage/issues/87#issuecomment-1853493366, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABXQ6HILNUM6ZKEPCF73BHLYJFTPDAVCNFSM6AAAAABAK7XWWSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTQNJTGQ4TGMZWGY . You are receiving this because you commented.Message ID: @.***>

[binarynoise]

It seems, the problem is not only the restricted access to /data. When running the native lib manually, it segfaults immediately, not even printing the "Need directory argument" error. As I don't know how to debug that, I have to pass the issue to someone who does. I could however push my change to use --mount-master