On 08/12/2024 00:39, Kent Overstreet wrote: > On Sun, Dec 08, 2024 at 12:01:11AM +0100, Malte Schröder wrote: >> On 07/12/2024 22:58, Kent Overstreet wrote: >>> Hey Miklos, I've got a user who noticed silent data corruption when >>> building flatpaks on rc1; it appeared when using both bcachefs and btrfs >>> as the host filesystem, it's now looking like fuse changes might be the >>> culprit - we just got confirmation that reverting >>> fb527fc1f36e252cd1f62a26be4906949e7708ff fixes it. >>> >>> Can you guys take it from here? Also, I think a data corruption in rc1 >>> merits a post mortem and hopefully some test improvements, this caused a >>> bit of a freak out. >> Hi >> all, >> >> >> I did report this. What I encountered is flatpak installs failing on >> bcachefs >> because of mismatching hashes. I did not notice any other issues, just >> this >> thing with flatpak. Flatpak seems to put downloaded files into >> directories >> mounted with "revokefs-fuse" on /var/tmp. So far I could only reproduce >> this on >> bcachefs, it does not happen when I make /var/tmp a tmpfs or when I >> bind-mount >> a directory from a btrfs onto >> /var/tmp. >> >> >> To me there seems to be some bad interaction between fuse and >> bcachefs. >> >> >> Reverting fb527fc1f36e252cd1f62a26be4906949e7708ff fixes the issue for >> me. > You said it happened with btrfs as well? That was my first assessment, but my method was flawed. I corrected later. Sorry for the confusion.
