msdosfs panic: wrong dirclust

[Craig Rodrigues]

Hi,

I am using FreeBSD-CURRENT.
I mounted a FAT-formatted external
USB hard disk, and then tried
to copy a lot of files to it
with rsync.  I got this panic
(hand transcribed, system hung hard and
could not get a dump):

panic: wrong dirclust
panic() at panic+0x127
deget() at deget0x87
createde() at createde+0x389
msdosfs_mkdir() at msdosfs_mkdir+0x2f9
VOP_MKDIR_APV() at VOP_MKDIR_APV+0x9b
kern_mkdir() at kern_mkdir+0x2ca
mkdir() at mkdir+0x15
syscall() at syscall+0x22f
Xint0x80_syscall() at Xint0x80

Has anyone seen this before?

-- 
Craig Rodrigues        
rodrigc at crodrigues.org