Hi Adrian, > I've seen that on my Amiga 4000 as well.
> The problem is that btrfs tries to determine whether a block device is > a hard drive or not and if the block device driver misses a certain > flag (e.g. removable) it will just scan forever. > In the case of my Amiga, the btrfs module was scanning the floppy drive > for a btrfs filesystem and without a floppy disk inserted, it would > scan forever. > If your UltraSPARC 5 has a floppy disk drive, it might be doing the > same in your case. And if your machine has a floppy disk controller > but no drive attached to it, this might explain why seemingly nothing > is happening. <snip> > As for btrfs: The filesystem detection code is just plain stupid. Interesting behaviour :-). So the problem is somewhere in btrfs_scan_devices() [1], [2]. Are you avare about any bug report of this behavior? I haven't found it in btrfs-progs issues list [3] nor in kernel bugzilla BTRFS issues. > Adrian Kind regards, Petr [1] https://github.com/kdave/btrfs-progs/blob/master/cmds-device.c#L296 [2] https://github.com/kdave/btrfs-progs/blob/master/utils.c#L1953 [3] https://github.com/kdave/btrfs-progs/issues [4] https://bugzilla.kernel.org/buglist.cgi?component=btrfs
