Is LOR a new feature in 11-CURRENT?

Chris H bsd-lists at
Mon Aug 25 20:18:22 UTC 2014

Greetings, all.
I'm testing 11 current, and booting && installing from the
returns the following, via dmesg(8):

kernel: lock order reversal:
kernel: 1st 0xfffff80002fa37c8 isofs (isofs) @ /usr/src/sys/kern/vfs_mount.c:1219
kernel: 2nd 0xfffff80002fe7240 devfs (devfs) @ /usr/src/sys/ufs/ffs/ffs_vfsops.c:1375

Further info:
kernel: FreeBSD 11.0-CURRENT #0 r269824: Mon Aug 11 20:18:52 UTC 2014
kernel: root at amd64
kernel: FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512
kernel: WARNING: WITNESS option enabled, expect reduced performance.
Operation of FreeBSD will feel as tho it's running off of a 5/14 floppy disk!

kernel: CPU: AMD Athlon(tm) ...

Of course, an svn checkout of src && ports
followed by a make && install of world && kernel reconciled the matter.
I thought it worth mentioning.

All the best.


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