Samuel Thibault wrote: > > when I run 'sync' it hangs. I can interrupt the 'sync' command via > > Ctrl-C and restart it, but it then still hangs. I ended up rebooted > > anyway, and after reboot an 'fsck' was required. This 'fsck' found > > between 17000 and 170000 empty directories (depending on how much time > > I had let 'sync' run). The data (built files under testdir-all) was > > good, though. > > disk writeback is a beast, yes. If tests are creating lots of data on > the disk that's stressing the VM and possibly it even gets to OOM, which > is a hard thing to recover from.
But the effects - tens of thousands of directories to fix at the next 'fsck' - make it look like something is *very* wrong. Would it help to find out which part of the build process triggers this, or is no one looking into this seriously? Bruno