On Tue, 2018-09-04 at 17:14 +0800, Qu Wenruo wrote: > However the backtrace can't tell which process caused such fsync > call. > (Maybe LVM user space code?)
Well it was just literally before btrfs-check exited... so I blindly guesses... but arguably it could be just some coincidence. LVM tools are installed, but since I no longer use and PVs/LVs/etc. ... I'd doubt they'd do anything here. Cheers, Chris.