On 27/08/2024 05:29, Kent Overstreet wrote:
Interestingly, it only triggers for QEMU - the test fails pretty
consistently and we have a lot of nixos users, we'd notice (via nix
store verifies) if the corruption was more widespread. We believe it
only triggers with QEMU's snapshots mode (but don't quote me on that).
I have had this with 6.10.6 #1-NixOS (with nocow_lock patch added) _on
bare hardware_, no qemu involved.
So far, i have seen it only on files in /var/lib/nixos, similar to
https://github.com/NixOS/nixpkgs/issues/126971.
nix-store --verify --check-contents is still running, but no errors yet.
Also, copygc and rebalance block suspends for me, though the fs gets
unmounted fine on shutdown.
Mount options:
/dev/nvme0n1p2:/dev/sdc3:/dev/sdd2:/dev/sde3:/dev/sdb3:/dev/sda3 on / type
bcachefs
(rw,relatime,metadata_replicas=2,data_replicas=2,background_compression=zstd,metadata_target=ssd,foreground_target=ssd.tlc,background_target=hdd,promote_target=ssd)
