Control: tags -1 + moreinfo

Hi David,

On Mon, Feb 02, 2026 at 03:59:38PM +0100, Z80user wrote:
> ============================================
> NOTES to understand the rest of the message:
> ============================================
> English isn't my natural language
> Dates are as YYYY-MM-DD
> 
> all of the partitions I talking are NTFS partitions, is just because if the
> partition is corrupted I know how to rescue it more easy
> 
> Type of data corruptions
> Type 1. the partition can NOT be mount with gnome-disk-utility but it can
> be mount with the mount command or if it is added to the /mnt/
> Type 2. the partition can NOT be mount with gnome-disk-utility either with
> mount on /mnt/ but if the partition is copy into a file with "dd" or
> "ddrescue" and you mount it in a loop device you can read the data from it
> Type 3. the partition can NOT be mount with gnome-disk-utility, mount or
> the loop device trick and the data is lost unless you used a data rescue
> software
> 
> only Type 1 and 2 are present on this problems, so is possible to read it
> back and isn't data corruption but as normal people can not access it's
> almost like a data corruption, is needed to use some trick to can read it
> I didn't have any Type 3 data corruption yet
> 
> at the end of the first report I wrote a lot of extra info too but as is
> the first time I made a report I didn't know where to place that info
> ============================================
> The video show the problem, sometimes on the top left corner appear a box
> where I enter the root password to allow changes
> 0:40 the Operating system didn't leave me to unmount the partition because
> ffmpeg was creating a miniature because "caja" was open.
> 
> it happen the same on two of my physical computers
> On the computer on the shop I have (the one that create the report, install
> on 2025-01-09):
> 6.12.48+deb13-amd64 *1
> 6.12.57+deb13-amd64 *2
> 6.12.63+deb13-amd64 *3
> 6.17.13+deb13-amd64 *4  in use
> 
> On the computer I have at home: (I install it 2026-11-21)
> 6.12.41+deb13-amd64 *5
> 6.12.57+deb13-amd64
> 6.12.63+deb13-amd64 in use
> 
> I have a VM on proxmox that don't show that problem with Debian 12 (I
> create it 2026-01-09)
> 6.1.0-22-amd64
> 6.1.0-42-amd64 in use
> 
> 
> *1 I didn't test it yet
> *2 it have the problem
> *3 it have the problem
> *4 it have the problem, I manually install and this days is the one is use
> 
> 
> -. It's not too easy to replicate it, only if I move a lot of data between
> one disk and another, usually if the NvME drivers are used
> -. mount and unmount any partition does not create this problems and you
> can see on the video
> -. if I reboot or power off the computer and a external HDD is mount, the
> partition get "corrupted" with the Type 2 of corruption (see the start of
> the post)
> -. data lost when the computer is turn off by software
> -. sometimes data lost when the computer crash is Type 1 on internal
> devices (I don't know on external devices)
> -. data lost when the computer have a silence crash most of the times is
> Type 2 on internal an internal devices (when / root disappear)
> 
> And maybe one strange thing is:
> It happens most of the times with new NTFS partitions (created with
> gnome-disk-utility). and I mean new partitions are partitions created
> recently, with old partitions created way before I move from Debian 12 to
> Debian 13 look like they are not affected by this bug
> 
> I can keep the state of that machine frozen in time to can made more test
> on it and I have some 40, 100, 120 and (8) 160 GB HDDs to can test almost
> anything if will be needed if someone said me a new test

If nothing get logged in time to your system logs, we might try to
gather more information by attaching a netconsole. You need a second
device in your lan to recieve the netconsole messages.

Instructions on how to do it are documented in:
https://docs.kernel.org/networking/netconsole.html

To make things handy once it work to send messaged to the remote host,
add (temporary, it can be dropped again after the debug session) a
dropin file /etc/default/grub.d/netconsole.cfg containing the required
settings:

GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX netconsole=[...]"

and then run update-grub2.

Can you please try that and then wait to trigger the problem and
collect the logs sent via netconsole.

Regards,
Salvatore

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