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Date:      Sat, 9 May 1998 21:11:33 +0300
From:      Alexander Litvin <archer@lucky.net>
To:        Julian Elischer <julian@whistle.com>
Cc:        current@FreeBSD.ORG
Subject:   Re: Soft update code looking very stable
Message-ID:  <19980509211133.34894@carrier.kiev.ua>
In-Reply-To: <Pine.BSF.3.95.980509025951.2151E-100000@current1.whistle.com>; from Julian Elischer on Sat, May 09, 1998 at 03:00:31AM -0700
References:  <199805081842.VAA05061@grape.carrier.kiev.ua> <Pine.BSF.3.95.980509025951.2151E-100000@current1.whistle.com>

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On Sat, May 09, 1998 at 03:00:31AM -0700, Julian Elischer wrote:
> try:
> ftp://ftp.whistle.com/private/julian/kernel.alex

I managed to crash it with the second run of 'make -j64 buildworld'.
Unfortunately, I accidentially aborted dumping manually. I'm trying
to make it crash again to have a crashdump. The panic message was:

panic: softdep_fsync: pending ops

syncing disks... panic: softdep_disk_write_complete: lock is held

> On Fri, 8 May 1998, Alexander Litvin wrote:
> 
> > In article <Pine.BSF.3.95.980508100053.980A-100000@current1.whistle.com> you wrote:
> > > damn!
> > 
> > > My machine has been doing "make world -j8" continuously for 6 days now..
> > > and at teh same time it has been doing
> > > tar -xzvf X11R6.tgz; rm -rf X11R6
> > > in two other directories.
> > 
> > > all soft-update mounted..
> > > can you snd me your kerel config file..
> > > if I make you  a kernel, can you run it for a while?
> > 
> > > julian
> > 
> > Julian, I have, as far as I can judge, the very basic system:
> > just P-120, 32M ram, IDE HDD -- that's all. I inserted my kernel
> > config at the bottom. Only /usr/obj is mounted with softupdates.
> > I managed to crash my system with 'make -j32 buildworld'. The only
> > thing I was doing at the same time was small shell script which
> > created ~30 empty dirs, end in each of them another ~30 empty dirs
> > (just for benchmarking -- the same squid does, and it takes quite
> > a lot of time on ufs).
> > 
> > The same system survived 'make buildworld' just before (without any -j#).
> > 
> > I've sent you a backtrace (pending ops), though I may repeat if it was
> > lost somehow. It _was_ with the latest softdep.h/ffs_softdep.c from
> > http://www.freebsd.org/~julian/.

--- 
Love is an ideal thing, marriage a real thing; a confusion of the real
with the ideal never goes unpunished.
                -- Goethe

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