panic in vfs_subr.c / ffs_inode.c / ufs_inode.c / ...

[Thierry Herbelot]

Hello,

As a follow-up : the panic occurred while "portupgrade"-ing in parallel to a 
"make -j2 buildworld"

All partitions are UFS2 ; all (even /) are mounted with soft-updates enabled.

Other partitions exist on the machine, apart from the ones mirrored via geom. 
They are not used (leftovers from a previous "jail" experiment), except for 
savecore.

	TfH