dmcrypt - possible corruption of data with kernel 6.7.0-rc5-1-mainline

Hello,

I don't require assistance, but hope someone involved with dmcrypt can 
make use of the following hint:

I believe dmcrypt corrupts my data on arch linux with mainline kernel 
6.7.0-rc5-1-mainline, while it doesn't on stable kernel 6.6.7-arch1-1.

My system has a btrfs mounted at /, which contains a file test.img, 
which is used as block device for dmcrypt. The decrypted block device is 
then mounted at /mnt/test

When I rsync ~150GB of data to /mnt/test the btrfs inside shows many 
write_io_errs on kernel 6.7.0-rc5-1-mainline. The outside btrfs / shows 
no errors. An extended smart selftest of the underlying nvme also 
revealed no errors.

When I do the same with the stable kernel, no errors show up. It is 
probably only my system, but maybe someone wants to try that out. I 
created the image file completely new each time.


# I used the following commands to set everything up:
dd of=/test.img bs=300G count=0 seek=1
cryptsetup -y luksFormat /test.img
sudo cryptsetup open /test.img image
sudo mkfs.btrfs /dev/mapper/image
sudo mkdir /mnt/test
sudo mount /dev/mapper/image /mnt/test

sudo chown -R user:user /mnt/test

cryptsetup is at: 2.6.1-3

Regards

Richard