Date: Thu, 13 Apr 1995 04:30:24 +1000 From: Bruce Evans <bde@zeta.org.au> To: babkin@hq.icb.chel.su, davidg@Root.COM Cc: freebsd-hackers@FreeBSD.org Subject: Re: SLIP bug ? Message-ID: <199504121830.EAA23231@godzilla.zeta.org.au>
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>I have found a little bug in SLIP (950210-SNAP). Comment says that SLIP >must mask both network and tty interrupts by spl...(), but really >it masks splimp() only. Is this error corrected in -current ? If not This has never been a problem in FreeBSD or 386BSD. splimp() masks ttys too if SLIP or PPP is (statically) configured. See isa.c. There used to be variations on the problem. A long time ago, splnet() was null unless there was a network interface (ethernet or SLIP), but it has to be no-null for lo0, was a network interface (ethernet or slip), but it has to be no-null for lo0. More recently, isa.c forgot to handle the (NPPP > 0) case. Bruce
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