Re: ntfs ubc_uiomove error

[christos%zoulas.com@localhost (Christos Zoulas)]

On Aug 27,  4:21pm, dholland-current%netbsd.org@localhost (David Holland) wrote:
-- Subject: Re: ntfs ubc_uiomove error

| On Wed, Aug 26, 2009 at 10:22:24AM -0400, Christos Zoulas wrote:
|  > | I was _reading_ from ntfs vnd, and writing to /tmp (tmpfs or ffs, not 
sure
|  > | which now...) The surprise above was that cat worked where cp failed(?!)
|  > 
|  > Ah, ok... Now I understand :-) NTFS does not implement mmap, and cp uses
|  > mmap.
| 
| Shouldn't cp be adjusted so it'll fall back to read()?

Last I checked it failed differently, mmap(2) returned an invalid
pointer and the the application SEGV'd. Clearly this behavior has
now changed :-) I don't think that the error is being passed up
properly, still.

christos