ZFS checksum errors on umass(4) insertion

[John Baldwin]

On Thursday 16 April 2009 2:24:55 pm Alexey Shuvaev wrote:
> On Thu, Apr 16, 2009 at 01:27:46PM -0400, John Baldwin wrote:
> > On Thursday 16 April 2009 12:18:51 pm Damian Gerow wrote:
> > > John Baldwin wrote:
> > > : > I'm at a bit of a loss as to what to test next, other than checking 
for 
> > an
> > > : > increased number of checksum errors after unloading umass.  However, 
I'm 
> > not
> > > : > convinced this is going to highlight the actual problem.  I'm all 
ears 
> > as to
> > > : > what to test for at this point, as I'm running out of ideas.
> > > : > 
> > > : > A little less wordy: help?
> > > : 
> > > : Do your umass(4) drives use ZFS or some other filesystem?
> > > 
> > > Something in the FAT line, likely FAT32.  I use ZFS for everything but 
my
> > > root filesystem (/usr, /var, /tmp, /home, and a few other non-default
> > > mountpoints), but I stick with FAT for removable devices.
> > > 
> > > It's probably worth pointing out that I don't need to mount the 
filesystem
> > > to trigger the issue.
> > 
> > Try http://www.FreeBSD.org/~jhb/patches/dma_sg.patch please.
> > 
> You mean dma_pg.patch?			^^^^^^^^^^^^^

Yes, and it is now symlinked to dma_sg as well. :)

-- 
John Baldwin