Gleb Smirnoff wrote:
On Thu, May 25, 2006 at 01:00:36AM +0000, Stephan Uphoff wrote:
S> ups 2006-05-25 01:00:36 UTC
S>
S> FreeBSD src repository
S>
S> Modified files:
S> sys/kern vfs_subr.c
S> sys/nfsclient nfs_bio.c
S> sys/fs/smbfs smbfs_io.c
S> sys/fs/nwfs nwfs_io.c
S> Log:
S> Do not set B_NOCACHE on buffers when releasing them in flushbuflist().
S> If B_NOCACHE is set the pages of vm backed buffers will be invalidated.
S> However clean buffers can be backed by dirty VM pages so invalidating them
S> can lead to data loss.
S> Add support for flush dirty page in the data invalidation function
S> of some network file systems.
S>
S> This fixes data losses during vnode recycling (and other code paths
S> using invalbuf(*,V_SAVE,*,*)) for data written using an mmaped file.
S>
S> Collaborative effort by: jhb@,mohans@,peter@,ps@,ups@
S> Reviewed by: tegge@
S> MFC after: 7 days
Can this be related to reports like this:
http://freebsd.rambler.ru/bsdmail/freebsd-current_curr/msg00282.html
I believe that this is unrelated and that the sender of the message
needs to re-install screen as suggested by
http://freebsd.rambler.ru/bsdmail/freebsd-current_curr/msg00283.html
If I recall correctly this is required due to changes in the pty code.
Stephan
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