Date: Wed, 30 Apr 1997 16:09:51 +0800 From: Peter Wemm <peter@spinner.DIALix.COM> To: Doug Rabson <dfr@nlsystems.com> Cc: Rusell Cattelan <cattelan@thebarn.com>, freebsd-bugs@freebsd.org Subject: Re: pppd hangs or reboots machine. Message-ID: <199704300809.QAA04923@spinner.DIALix.COM> In-Reply-To: Your message of "Wed, 30 Apr 1997 08:36:47 %2B0100." <Pine.BSF.3.95q.970430083354.13137H-100000@herring.nlsystems.com>
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Doug Rabson wrote: > > Any suggestions? > > I was digging through the code in isa.c which calculates interrupt masks > and I noticed that it special cases SLIP to make sure that all ttys > interupts are masked by splnet but doesn't do the same for kernel-mode > ppp. This was an old bug I fixed in the 2.0 days; it seems to have > reappeared. No, this isn't necessary for kernel-mode ppp any more because it does it itself. The other reason is that the mutual exclusion is asymmetric, but I don't remember which way. ie: spltty blocks splnet, but splnet doesn't block spltty - but it might be the other way around. Cheers, -Peter
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