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Date:      Fri, 29 Mar 2002 17:19:34 -0800
From:      microchip604 <micro604@gmx.net>
To:        "Greg 'groggy' Lehey" <grog@FreeBSD.org>
Cc:        freebsd-questions@FreeBSD.org
Subject:   Re: FreeBSD 4.5 Samba/Vinum Kernel Panic
Message-ID:  <20020329171934.A345@gmx.net>
In-Reply-To: <20020329111224.C7213@wantadilla.lemis.com>; from grog@FreeBSD.org on Fri, Mar 29, 2002 at 11:12:24AM %2B1030
References:  <20020328124727.A1015@gmx.net> <20020329111224.C7213@wantadilla.lemis.com>

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On Fri, Mar 29, 2002 at 11:12:24AM +1030, Greg 'groggy' Lehey wrote:
> [Format recovered--see http://www.lemis.com/email/email-format.html]
> 
> On Thursday, 28 March 2002 at 12:47:27 -0800, microchip604 wrote:
> > Hello,
> >
> > I've been experiencing a problem on my new FreeBSD 4.5-RELEASE box.
> > It seems that writing large amounts of data to a RAID-1 Vinum mirror, through SAMBA,
> > causes a kernel panic(!):
> >
> > Mar 24 15:16:20 beer /kernel:
> > Mar 24 15:16:20 beer /kernel: Fatal trap 12: page fault while in kernel mode
> > Mar 24 15:16:20 beer /kernel: fault virtual address     = 0x0
> > Mar 24 15:16:20 beer /kernel: fault code                = supervisor read, page not present
> > Mar 24 15:16:20 beer /kernel: instruction pointer       = 0x8:0xc6b1972d
> > Mar 24 15:16:20 beer /kernel: stack pointer             = 0x10:0xd3452c1c
> > Mar 24 15:16:20 beer /kernel: frame pointer             = 0x10:0xd3452c30
> > Mar 24 15:16:20 beer /kernel: code segment              = base 0x0, limit 0xfffff, type 0x1b
> > Mar 24 15:16:20 beer /kernel: = DPL 0, pres 1, def32 1, gran 1
> > Mar 24 15:16:20 beer /kernel: processor eflags  = interrupt enabled, resume, IOPL = 0
> > Mar 24 15:16:20 beer /kernel: current process           = 233 (smbd)
> > Mar 24 15:16:20 beer /kernel: interrupt mask            = none
> > Mar 24 15:16:20 beer /kernel: trap number               = 12
> > Mar 24 15:16:20 beer /kernel: panic: page fault
> > Mar 24 15:16:20 beer /kernel:
> >
> > The panics seem to occur randomly but can be recreated.
> >
> > I have a collection of info (including my lame gdb -k debugging!)
> > [ph]osted at http://micro604.boogienet.com I didn't post the whole
> > 300 lines here out of (misguided?) courtesy.
> 
> Take a look at http://www.vinumvm.org/vinum/how-to-debug.html and send
> me the information requested there.

Ummm...my face is red.

In working through the vinum debug I noticed, much to my surprise, a plex was faulty and subdisk hosed. 

After I rebuild the plex, I can't recreate the problem....Go figure. *Ahem*.

Sorry to bother you!

m!
--
micro604 at gmx.net

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