I am using NetBSD-current and ep driver.  The ep driver seems to work,
but if I use NFS, then the performance is intolerable and the system
often hangs.  So I read the sources and found the following line in a
config file causes that the 'netmask' is used as mask for ep in
vector.h and ioconfig.c. This mask is used for 'splnet' in isa/icu.s.

>
>device ep0 at isa? port 0x300 net irq 10 vector epintr
>

I think that it means network protocol processing blocks network
device drivers. So, I hacked vector.h ioconfig.c by hand so that
impmask is used as the mask of the ep driver and isa.c as the
following.


isa.c line 123:
      /*netmask |= astmask;
        impmask = netmask | ttymask; */
        netmask = astmask;
        impmask |=  ttymask | biomask ;

Then, the performance become better. Is this story correct?

              Yasuhiko Minamide
              Kyoto Univ. Japan

------------------------------------------------------------------------------