Le ven. 17 nov. 2023 à 07:41, Giovanni Santini <giovannisantin...@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: > > --- > > (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 @ ~ $ > > --- > > 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.
