Le ven. 17 nov. 2023 à 07:41, Giovanni Santini <giovannisantini93@yahoo.it> a écrit :
Hi Marius, On 2023-11-15 14:16, Marius Kittler wrote:
Since both are completely different implementations the syncing behavior might differ. I haven't paid much attention to the syncing behavior of the new kernel module but it might simply be more lazy than the FUSE implementation. Does it help to invoke `sync` manually? If yes, this may also be a workaround in case you really want it to write the data without delay.
I did try, yes. No fortune with manual sync and udisks or mount.
Here is a shell session, I think a pastebin is not needed given that it is short:
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(23:16) giovanni @ ~ $ udisksctl mount -b /dev/nvme0n1p5 -t ntfs3 Mounted /dev/nvme0n1p5 at /run/media/giovanni/Data (23:16) giovanni @ ~ $ touch /run/media/giovanni/Data/ntfs_error.txt (23:17) giovanni @ ~ $ ls -al /run/media/giovanni/Data/ntfs_error.txt -rw-r--r-- 1 giovanni users 0 Nov 16 23:17 /run/media/giovanni/Data/ntfs_error.txt (23:17) giovanni @ ~ $ echo "Using ntfs3" > /run/media/giovanni/Data/ntfs_error.txt (23:17) giovanni @ ~ $ cat /run/media/giovanni/Data/ntfs_error.txt (23:17) giovanni @ ~ $ udisksctl unmount -b /dev/nvme0n1p5 Unmounted /dev/nvme0n1p5. (23:17) giovanni @ ~ $ udisksctl mount -b /dev/nvme0n1p5 -t ntfs3 Mounted /dev/nvme0n1p5 at /run/media/giovanni/Data (23:17) giovanni @ ~ $ cat /run/media/giovanni/Data/ntfs_error.txt Using ntfs3 (23:17) giovanni @ ~ $ udisksctl unmount -b /dev/nvme0n1p5 Unmounted /dev/nvme0n1p5. (23:18) giovanni @ ~ $ sudo mount -t ntfs3 -o uid=$UID,gid=$GROUPS /dev/nvme0n1p5 /mnt/ (23:18) giovanni @ ~ $ cat /mnt/ntfs_error.txt Using ntfs3 (23:18) giovanni @ ~ $ echo "Using ntfs3 and mount" > /mnt/ntfs_error.txt (23:19) giovanni @ ~ $ cat /mnt/ntfs_error.txt (23:19) giovanni @ ~ $ sync (23:19) giovanni @ ~ $ cat /mnt/ntfs_error.txt (23:19) giovanni @ ~ $ sync (23:19) giovanni @ ~ $ cat /mnt/ntfs_error.txt (23:19) giovanni @ ~ $ sudo umount /mnt (23:19) giovanni @ ~ $ sudo mount -t ntfs3 -o uid=$UID,gid=$GROUPS /dev/nvme0n1p5 /mnt/ (23:19) giovanni @ ~ $ cat /mnt/ntfs_error.txt Using ntfs3 and mount (23:19) giovanni @ ~ $
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You can see that when I try to overwrite the file content it just "appears" empty.
Unmounting and remounting the partition makes the content appear.
Bests,
-- Giovanni Santini
on the `/proc/sys/vm/` side may be ? does the `sync` followed by a `sysctl -q vm.drop_caches=3` change things ? regards, lacsaP.