Date: Fri, 27 Aug 1999 10:19:34 +0300 (EEST) From: Adrian Penisoara <ady@warpnet.ro> To: Juergen Lock <nox@jelal.kn-bremen.de> Cc: Alan Cox <alc@cs.rice.edu>, scrappy@hub.org, freebsd-stable@FreeBSD.ORG Subject: Re: 3.2-STABLE hangs after several hours ... Message-ID: <Pine.BSF.4.10.9908271013320.1836-100000@ady.warpnet.ro> In-Reply-To: <19990827010447.A9022@saturn.kn-bremen.de>
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Hi, On Fri, 27 Aug 1999, Juergen Lock wrote: > First, you don't need the kernel debugger to check a hung processes > wchan, a ps -l will show it as well. (as does a ^t on its control tty, > if it has one) I can't, the machine is completely frozen (not even ping/telnet response) I can only see the frozen screensaver... > > > anyone care to point me out some documentatin suited to my > > situation (kernel debugging on production machines) ? [ THX for the info, I'll need it... ] > > I checked out the previous threads and my situation appears to be similar > > to those described in the "On freezes in 3.2-stable" thread, although I > > have only 128Mb of RAM and UP kernel; see the attached dmesg output for > > more details... > > > > Let me tell you how it worked for me: > > > > * I had an uptime of more than 13 hours with Juergen's patch, but that's > > not so conclusive, as these freezes tend to be somewhat random > > > > * When I saw your commit I reverted the patch, cvsupped and rebuilt the > > kernel; the machine hung up some 7-8 hours later ... > > > with the atomic.h fix (which alc mailed me) i cannot reproduce the > hang anymore, at least the way i could with the broken kernels. > so i would _guess_ that this hang you got had a different cause > and it would be interesting to know what it was... Well, well: I have both the atomic.h fix and the vm_object.h patch applied, but the machine keeps freezing on high loads (it seems). I guess I have to start checking again the hardware and jump on the debugging stick... > > > I really don't know what to blame, kernel bug or faulty hardware; one > > thing I can be sure about is that the machine has been rock stable until > > I've started to track -STABLE from 3.1-RELEASE somtime around 6th August. > > All -stable kernels after Jul 28 showed the hangs for me. Hmmm, sometimes I really wonder if downgrading to a pre-August world/kernel wouldn't be a good ideea... > > Regards, > -- > Juergen Lock <nox.foo@jelal.kn-bremen.de> > (remove dot foo from address to reply) > "Well, back to the drawing board..." Ady (@freebsd.ady.ro) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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