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Date:      Sat, 16 Apr 2005 11:33:11 -0700
From:      Kris Kennaway <kris@obsecurity.org>
To:        Doug White <dwhite@gumbysoft.com>
Cc:        Daniel Eriksson <daniel_k_eriksson@telia.com>
Subject:   Re: task queue: supervisor write, page not present
Message-ID:  <20050416183311.GA61065@xor.obsecurity.org>
In-Reply-To: <20050415195545.W38788@carver.gumbysoft.com>
References:  <!~!UENERkVCMDkAAQACAAAAAAAAAAAAAAAAABgAAAAAAAAA0VcX9IoJqUaXPS8MjT1PdsKAAAAQAAAAAbdICmJNzkmCrRtqFiPMfwEAAAAA@telia.com> <20050415195545.W38788@carver.gumbysoft.com>

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On Fri, Apr 15, 2005 at 07:56:50PM -0700, Doug White wrote:
> On Fri, 15 Apr 2005, Daniel Eriksson wrote:
>=20
> > Doug White wrote:
> >
> > > Can you get a crashdump and inspect the taskq with gdb? I'm assuming
> > > there's a bogus entry thats getting tripped over.
> >
> > Dang, I was running low on space and removed the dump I had just a few =
hours
> > ago since nobody had replied yet.
>=20
> Sorry, we don't guarantee 4 hour response -- that costs money. :)
>=20
> > Right now I'm back to running CURRENT as of 2005.03.11.12.00.00 (over a
> > month old) because I know it works pretty well for me.
> >
> > I'm not very good with gdb. Are there any specific steps I should take =
to
> > get the information needed to track this down (if I upgrade to latest
> > CURRENT again)? Could this be related to me using a lot of r/w nullfs
> > mounts?
>=20
> I don't think so... nullfs has it sown problems, but not random memory
> corruption.

Actually r/w nullfs used to work in 5.x and 6.x (and r/o still does),
so if someone is seeing otherwise they need to report it.

Kris

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