So I'm trying to preallocate a VM image file using dd and I'm getting a weird hang regardless of file system (XFS and Btrfs so far). Existing shells, local and ssh, are very sluggish but work. I can't create new shells, either local or ssh, they time out. This is the command I'm using: dd if=/dev/zero of=fedoraA.img bs=1M count=40000 It takes between 10 seconds and 1.5 minutes for e.g. ls -lsh to return results. And lsattr has been hung for 5 minutes and doesn't return results until dd is done. free -m reports around 100MB of free memory. There's no obvious runaway process reported by top. So I'm not sure why there's this much of a drag. How to go about troubleshooting this? Chris Murphy -- test mailing list test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe: https://admin.fedoraproject.org/mailman/listinfo/test
