I tried to set up journaling under 7.x and had problems dumping the journaled filesystem, since creating the snapshot would often hang or panic the machine. I decided to try again with 8.0, and while the hangs and panics have gone away, taking the snapshot still takes upwards of 5 minutes, during which time the system is all but hung. Additionally, I frequently see these:
For now, I will keep the journaling in place, since I think it does more good than harm, but I wonder if the act of creating a snapshot couldn't either be sped up, or perhaps not lock the system quite as pervasively as it does.
Note that the swap in this case is on a dedicated partition on the disk, not in a swap file on the journaled FS or anything like that (that would make those messages make sense, IMHO).
Code:
swap_pager: indefinite wait buffer: bufobj: 0, blkno: 1184, size: 4096
swap_pager: indefinite wait buffer: bufobj: 0, blkno: 1184, size: 4096
swap_pager: indefinite wait buffer: bufobj: 0, blkno: 89, size: 4096
swap_pager: indefinite wait buffer: bufobj: 0, blkno: 89, size: 4096
swap_pager: indefinite wait buffer: bufobj: 0, blkno: 89, size: 4096
For now, I will keep the journaling in place, since I think it does more good than harm, but I wonder if the act of creating a snapshot couldn't either be sped up, or perhaps not lock the system quite as pervasively as it does.
Note that the swap in this case is on a dedicated partition on the disk, not in a swap file on the journaled FS or anything like that (that would make those messages make sense, IMHO).