Date: Tue, 09 Oct 2007 11:47:43 -0500 From: Elvar <elvar@ooz.net> To: freebsd-questions@freebsd.org Subject: Re: freezing, hard locking, and debug.mpsafenet=0 Message-ID: <470BB0AF.4050004@ooz.net> In-Reply-To: <470BAF29.3040505@ooz.net> References: <470BAF29.3040505@ooz.net>
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Sorry for sending this again. When I originally sent this it complained about my reverse dns address and kicked it back to me so after I got my reverse dns changed I sent it again but the original had gone through. Regards, Elvar Elvar wrote: > Hi there, > > I'm sharing my experiences with this in the hopes that it saves > someone else many many hours of troubleshooting and headaches. A > client of mine has a Dell Poweredge tower server with FreeBSD 6-stable > on it which was acting as their firewall. At some point in time about > 6 months ago the box started locking up every day or couple of days. I > imagine this was probably after a buildworld / installworld but I > can't remember. It would hard lock with nothing logged or any sign of > anything, and no response from the keyboard. In my experiences this > usually resulted in bad memory but after swapping out the memory for > new memory the issue still persisted. As time went on I eventually > pulled the hard drives out of the server and put them into another > server with completely different hardware (minus the transfered hard > drives). After bringing the install up on the other server I still had > the hard locks. I googled like mad and tried all sorts of things to > narrow down the problem but kept coming up with nothing. Now, I admit > I'm not an elite user so I'm sure lots of you could probably have > figured it out quicker. Eventually I put new hard drives into the > original firewall (the Dell Poweredge) and did a clean install of > FreeBSD 6.2-RELEASE. Unfortunately after bringing the box online as > the firewall again it continued locking up. I then updated to -STABLE > and still experienced the issue. Finally, after even more countless > hours of googling I found this thread > http://www.freebsdforums.com/forums/showthread.php?t=38765&page=1&pp=1 > <http://www.freebsdforums.com/forums/showthread.php?t=38765&page=1&pp=1>; > which seemed to describe the same freezing I was having. One person > mentioned setting debug.mpsafenet=0 in /boot/loader.conf and not > having a problem since doing so. Well, I ended up doing the same thing > and it's been about 25 days with not one freeze / lockup. > > It's my understanding that the ability to even disable this has been > taken out of 7.x, I only can hope that it's not an issue in 7.x like > it is on some systems in 6.x. So anyway, I hope this helps someone out. > > > Kind regards, > Elvar > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org"
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