Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!snorkelwacker!usc!hacgate!ladcgw.ladc.bull.com!melb.bull.oz.au!taureau.melb.bull.oz.au!sjg From: sjg@melb.bull.oz.au (Simon J Gerraty) Newsgroups: comp.protocols.nfs Subject: Re: PC-NFS SUN questions -- Summary of Answers Keywords: PC-NFS Message-ID: <1990Oct16.001341.22931@melb.bull.oz.au> Date: 16 Oct 90 00:13:41 GMT References: <9858@bunny.GTE.COM> Organization: Bull HN Information Systems Australia Lines: 29 In <9858@bunny.GTE.COM> hhg1@GTE.COM (Hallett German) writes: >Thank you for your help. I got 4 responses and I am posting a summary of >these to help others in need. >[...] >2. Why can't PC-NFS run in the DOS compatibility box of OS/2? Is there > a PC-NFS for OS/2? > > I never received an answer on the first question. It would be nice > if this restriction goes away in OS/2 2.0. No OS/2 PC-NFS was The answer is no. Many folk will tell you that they have installed DOS device drivers in the compatibility box and that they worked... If a device driver does polled I/O then yes it will work. Device drivers that catch interrupts however will miss many interrupts (and data?) if used in the compatibility box. Interrupts can occur at any time (such as when the processor is in protected mode and off running processes such as the OS/2 kernel). During such times a interrupt service routine in the DOS-box will miss interrupts. The solution is to use an OS/2 device driver. Both OS/2 and the DOS box can use the OS/2 drivers without fear of losing interrupts. -- Simon J. Gerraty #include