On Tue, 2011-07-05 at 04:17 +0000, Tabi Timur-B04825 wrote: > On Mon, Jul 4, 2011 at 9:24 AM, Hendrik Brueckner > <brueck...@linux.vnet.ibm.com> wrote: > > > I will check this again for my hvc_iucv back-end. Meanwhile a found > > an old thread discussing the same issue. It covers some differences > > between console and ttys which actually does not matter for hvc-backend > > because of the shared put_chars() routine. > > > > You can read the thread on lkml.org: http://lkml.org/lkml/2009/10/15/149 > > I started that thread. After much soul searching, we came to the > conclusion that HVC is not compatible with hypervisors that return > BUSY on writes.
That is a fun conclusion considering that hvc has been written for the pseries hypervisor which ... can return BUSY on writes :-) > So I threw out my HVC driver and rewrote it as a > standard console and TTY driver. That driver is waiting to be > included in the 3.1 kernel. Sucktastic. We just need to fix HVC properly. Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
