Hi I get easy reproducible a hang-up servers that use the file-based swap file after swapoff / swapon procedure (in this case, some of the data must be swapped). For example:
1) dd if=/dev/zero of=/usr/swp1 bs=1m count=100 2) mdconfig -a -t vnode -f /usr/swp1 3) swapon /dev/md0 4) begin to allocated memory, for example by simple: tail /dev/zero 5) after a filling of some percent, do swapoff /dev/md0, then swapon /dev/md0. you can try this procedure again. The system may stop responding to commands and freezes or locks up after some time. From the outside - the core lives (icmp response goes) but the disk system is not available. PS: one of my server to my mind is frozen without swapoff/on - just had three swapfile, a day after he crashed. _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
