Date: Tue, 10 Dec 2013 14:39:06 -0800 From: John-Mark Gurney <jmg@funkthat.com> To: Konstantin Belousov <kostikbel@gmail.com> Cc: nicolas dumont <nicolas.dumont@netasq.com>, Paolo Pinto <paolo.pinto@netasq.com>, freebsd-geom@freebsd.org Subject: Re: geom_uzip, panic: bio_length in mdstart_vnode() Message-ID: <20131210223906.GY55638@funkthat.com> In-Reply-To: <20131205082556.GA59496@kib.kiev.ua> References: <529F2748.2060900@netasq.com> <20131204162029.GV59496@kib.kiev.ua> <20131205020742.GU55638@funkthat.com> <20131205082556.GA59496@kib.kiev.ua>
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Konstantin Belousov wrote this message on Thu, Dec 05, 2013 at 10:25 +0200:
> On Wed, Dec 04, 2013 at 06:07:43PM -0800, John-Mark Gurney wrote:
> > Konstantin Belousov wrote this message on Wed, Dec 04, 2013 at 18:20 +0200:
> > > On Wed, Dec 04, 2013 at 01:59:52PM +0100, Paolo Pinto wrote:
> > > > Hi list!
> > > >
> > > > My kernel is compiled with option INVARIANTS and I get a reproducible
> > > > kernel panic when trying to read data from a GEOM based compressed
> > > > memory disk:
> > > >
> > > > Unread portion of the kernel message buffer:
> > > > panic: bio_length 140288
> > > > cpuid = 3
> > > > KDB: stack backtrace:
> > > > #0 0xffffffff80909726 at kdb_backtrace+0x66
> > > > #1 0xffffffff808d0fa8 at panic+0x1d8
> > > > #2 0xffffffff80595949 at mdstart_vnode+0x619
> > >
> > > The issue is that geom_uzip creates bios which are larger than MAXPHYS.
> >
> > Shouldn't geom_uzip be fixed to honor MAXPHYS?
> By all means, fix it.
Can one of you at least open a bug report so it's tracked? I see
that a commit happened, but no bug was opened to track that this issue
needs to be fixed...
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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