Date: Thu, 26 Aug 1999 14:17:42 +0300 (EEST) From: Adrian Penisoara <ady@warpnet.ro> To: Alan Cox <alc@cs.rice.edu> Cc: Juergen Lock <nox@jelal.kn-bremen.de>, scrappy@hub.org, freebsd-stable@FreeBSD.ORG, alc@FreeBSD.ORG Subject: Re: 3.2-STABLE hangs after several hours ... Message-ID: <Pine.BSF.4.10.9908261355110.5037-200000@ady.warpnet.ro> In-Reply-To: <19990824153116.P39490@nonpc.cs.rice.edu>
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Hi,
On Tue, 24 Aug 1999, Alan Cox wrote:
> > > >In case anyone is looking at this, with as little info as there is here,
> > > >the last kernel updated was July 13th, so its between then and now that
> > > >the "bug" appears to have been introduced...
> > >
> > > I also went to update my kernel yesterday and stumbled across what
> > > appears to be the same problems as yours, hanging processes until the
> > > entire system becomes unusable... And here is what i came up with:
> >
> > It seems that I've been bitten by the same bug (the machine suddenly
> > freezes after some 2-3 hours); I'm checking out right now the submitted
> > patch and I'll let you know (probably tomorrow) how it works for me...
> >
>
> Please check if you have a process hung in "objtrm". Juergen did.
I haven't the kernel debugger compiled in (as this is a production
machine); anyone care to point me out some documentatin suited to my
situation (kernel debugging on production machines) ?
> If so, this is the same bug reported in the "mSQL getting stuck
> in objtrm state" thread, and it has nothing to do with the changes
> below. (See my earlier message on this subject to the -STABLE list.)
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 ...
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.
I'll apply Juergen's patch again and come back to you with details.
>
> Alan
>
Thanks,
Ady (@freebsd.ady.ro)
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